There is provided a wastewater treatment apparatus that: controls the air diffusion amount in a flow channel where wastewater is treated; forms a first-half aerobic region, a first-half combined-use region where both nitrification and denitrification progress, a denitrification region, a second-half combined-use region where both nitrification and denitrification progress, and a second-half aerobic region in the stated order from the upstream side; and produces first and second swirl flows constituting a pair. The wastewater treatment device also controls the air diffusion amount in the first-half aerobic region and the first-half combined-use region on the basis of a concentration of nitrate nitrogen and controls the air diffusion amount in the second-half combined-use region and the second-half aerobic region on the basis of the concentration of ammonia nitrogen.
This methane generation system includes: a methane generation device that generates methane from a first gas containing methane and carbon dioxide generated during the treatment of wastewater in a wastewater treatment facility, and that discharges a second gas containing the generated methane; and a control device that controls the generation of methane by the methane generation device. The control device controls the generation of methane by the methane generation device based on the amount of carbon dioxide included in the first gas, and at least one of the concentration of carbon dioxide in the second gas, the concentration of hydrogen in the second gas, and the concentration of carbon monoxide in the second gas.
C07C 1/12 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon dioxide with hydrogen
An ozone-generating apparatus includes: at least one discharge tube each including: a first electrode having a tubular shape extending along a first axis; a second electrode extending along the first axis; and a dielectric extending along the first axis and disposed between the first electrode and the second electrode; and an inhibiting member disposed on an end side of the first electrode and inhibiting at least either the second electrode or the dielectric from moving toward the end side.
An ozone-generating apparatus includes: a plurality of discharge tubes each including: a first electrode having a tubular shape extending along a first axis; a second electrode extending along the first axis; and a dielectric extending along the first axis and disposed between the first electrode and the second electrode, the plurality of discharge tubes including a first discharge tube and a second discharge tube adjacent to the first discharge tube; and a connecting member electrically connecting the second electrode of the first discharge tube to the second electrode of the second discharge tube, wherein the connecting member faces an end of the dielectric of the first discharge tube and an end of the dielectric of the second discharge tube.
A method includes: stopping the supply of the oxygen to the membrane support; pushing a chemical solution that cleans the plurality of holes from a lower end of the membrane support to inside of the membrane support; pushing water or first air that pushes out the chemical solution inside the plurality of holes to a side of the reaction tank from the lower end to the inside of the membrane support; performing closing control of a valve that controls an amount of air to be discharged from an upper end of the membrane support; and pushing second air to dry the inside of the plurality of holes by pushing out the water or the first air inside the plurality of holes to the side of the reaction tank from the lower end to the inside of the membrane support.
The present invention makes it possible to treat wastewater by performing denitrification and nitrification with comparatively simple equipment. This wastewater treatment device controls an air diffusion amount in a flow path for wastewater treatment, forms, in order from upstream, a first-half aerobic region, a first-half shared region where nitrification and denitrification progress, a denitrification region, a second-half shared region where nitrification and denitrification progress, and a second-half aerobic region, and generates a pair of first and second swirl flows. Furthermore, the wastewater treatment device controls the air diffusion amount in the first-half aerobic region and the first-half shared region on the basis of a nitrate nitrogen concentration, and controls the air diffusion amount in the second-half shared region and the second-half aerobic region on the basis of an ammoniacal nitrogen concentration. The first swirl flow rises in the first-half shared region, heads downstream on the water surface-side of the denitrification region, falls near the center of the denitrification region, and heads upstream on the bottom side of the denitrification region. The second swirl flow rises in the second-half shared region, heads upstream on the water surface-side of the denitrification region, falls near the center of the denitrification region, and heads downstream on the bottom side of the denitrification region.
The present invention: adds activated carbon powder to a first liquid which contains manganese; adds a flocculant to the first liquid to which the activated carbon powder has been added; separates an object from the first liquid to which the flocculant has been added; adds a manganese catalyst to the first liquid from which the object has been separated; adds an oxidizing agent to the first liquid to which the manganese catalyst has been added; and separates, from the first liquid to which the oxidizing agent has been added, the manganese catalyst and a manganese oxide which has been generated by the oxidization of the manganese due to the oxidizing agent.
An ozone-generating apparatus includes: at least one discharge tube each including: a first electrode having a tubular shape extending along a first axis; a second electrode extending along the first axis; and a dielectric extending along the first axis and disposed between the first electrode and the second electrode; and an inhibiting member disposed on an end side of the first electrode and inhibiting at least either the second electrode or the dielectric from moving toward the end side.
An ozone-generating apparatus includes: a plurality of discharge tubes each including: a first electrode having a tubular shape extending along a first axis; a second electrode extending along the first axis; and a dielectric extending along the first axis and disposed between the first electrode and the second electrode, the plurality of discharge tubes including a first discharge tube and a second discharge tube adjacent to the first discharge tube; and a connecting member electrically connecting the second electrode of the first discharge tube to the second electrode of the second discharge tube. The connecting member faces an end of the dielectric of the first discharge tube and an end of the dielectric of the second discharge tube.
A biological treatment method for biologically treating nitrogen components contained in organic wastewater, the method includes: performing, in a first reaction tank, partial nitrification treatment on ammonium nitrogen contained in the organic wastewater with use of ammonia-oxidizing bacteria contained in activated sludge; supplying the activated sludge from the first reaction tank to an inactivation tank; inactivating, in the inactivation tank, nitrite-oxidizing bacteria contained in the activated sludge supplied from the first reaction tank with use of nitrite nitrogen while keeping pH at an approximately neutral level or lower; and supplying an inactivated sludge to the first reaction tank.
This separation device comprises a tank which is filled with a carrier that separates an object contained in a liquid and to which the liquid is supplied, a discharge part which discharges the object that has been separated by the carrier to outside the tank, and a tubular first screen which is provided inside the tank and which separates the carrier from the liquid, wherein at least a portion of the discharge part is disposed inside the tank below the first screen in the vertical direction.
B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
A digestion system includes: a digestion tank that digests organic matter in excess sludge by anaerobic bacteria; a first piping that supplies the excess sludge to the digestion tank; a second piping that has a larger pipe diameter than a pipe diameter of the first piping; a first reservoir tank that communicates with each of the first piping and the second piping, and that stores excess sludge transported by the second piping; a transporting unit that transports the excess sludge stored in the first reservoir tank to the digestion tank via the first piping, continuously for a predetermined period; and a heater that heats the excess sludge in the first piping by a fluid.
A digestion system which has a digestion vessel for digesting organic matter in waste sludge via anaerobic bacteria, a sludge pipe for supplying the waste sludge to the digestion vessel, a first steam pipe for supplying steam to the waste sludge inside the sludge pipe, and a second steam pipe for supplying steam to the digestion vessel, wherein the sludge pipe has a heating unit which heats the waste sludge inside the sludge pipe using steam supplied from the first steam pipe.
The present invention has: a digestion tank in which organic matter in surplus sludge is digested by anaerobic bacteria; a sludge pipe through which surplus sludge is supplied to the digestion tank; and a steam pipe through which steam is supplied to surplus sludge in the sludge pipe. The sludge pipe has a heating unit that heats surplus sludge in the sludge pipe by using steam, and further has a detector that detects the state of surplus sludge in the sludge pipe, and a control device that determines the mixture state of surplus sludge and steam according to the result of detection by the detector.
Provided is a method for cleaning an organic waste water treatment apparatus that is provided with a reaction tank for subjecting contaminants contained in organic waste water to a biological treatment and a supply device for supplying at least oxygen into the reaction tank, in which the reaction tank has a tubular membrane carrier that enables the molecule diffusion of oxygen supplied by the supply device in the reaction tank through a plurality of holes. In the method, the supply of oxygen to the membrane carrier is terminated, then a chemical agent for cleaning the plurality of holes is injected into the inside of the membrane carrier from the lower end of the membrane carrier, then water or first air for pushing out the chemical agent in the plurality of holes to the reaction tank side is injected into the inside of the membrane carrier from the lower end of the membrane carrier, then the closing of a valve for controlling the amount of air to be discharged from the upper end of the membrane carrier is controlled, and then second air for drying the inside of the plurality of holes by pushing out the water or the first air in the plurality of holes to the reaction tank side is injected into the inside of the membrane carrier from the lower end of the membrane carrier.
The present invention comprises: at least one discharge tube provided with a tubular first electrode that extends along a first axis, a second electrode that extends along the first axis, and a dielectric that extends along the first axis direction and is interposed between the first electrode and the second electrode; and a suppression member that is disposed on an end side of the first electrode and suppresses the movement of at least one of the second electrode and the dielectric toward said end side.
The present invention comprises: a plurality of discharge tubes, each provided with a tubular first electrode that extends along a first axis, a second electrode that extends along the first axis, and a dielectric that extends along the first axis direction and is interposed between the first electrode and the second electrode; and a connection member that electrically connects the second electrode of a first discharge tube and the second electrode of a second discharge tube next to the first discharge tube. The connection member faces an end of the dielectric of the first discharge tube and an end of the dielectric of the second discharge tube.
The present invention comprises: an incineration furnace for incinerating matter being treated; a supercharger having a compressor that compresses exhaust gas from the incineration furnace to generate compressed gas, and a turbine that drives the compressor; a blower for drawing in and blowing out the exhaust gas; and a supply unit that is capable of supplying the exhaust gas and/or the compressed gas blown out from the blower to a heat exchanger for warming said gas using waste heat from the incineration furnace, and that is also capable of supplying the warmed gas that was warmed by the heat exchanger to the turbine and/or a smokestack.
The present invention makes it possible to treat wastewater by performing denitrification and nitrification with comparatively simple equipment. This wastewater treatment device controls an air diffusion amount in a flow path for wastewater treatment, forms, in order from upstream, a first-half aerobic region, a first-half shared region where nitrification and denitrification progress, a denitrification region, a second-half shared region where nitrification and denitrification progress, and a second-half aerobic region, and generates a pair of first and second swirl flows. Furthermore, the wastewater treatment device controls the air diffusion amount in the first-half aerobic region and the first-half shared region on the basis of a nitrate nitrogen concentration, and controls the air diffusion amount in the second-half shared region and the second-half aerobic region on the basis of an ammoniacal nitrogen concentration. The first swirl flow rises in the first-half shared region, heads downstream on the water surface-side of the denitrification region, falls near the center of the denitrification region, and heads upstream on the bottom side of the denitrification region. The second swirl flow rises in the second-half shared region, heads upstream on the water surface-side of the denitrification region, falls near the center of the denitrification region, and heads downstream on the bottom side of the denitrification region.
The present invention comprises: an incinerator for incinerating an object to be treated; a turbocharger having a compressor that compresses air supplied to the incinerator to generate compressed air and a turbine that drives the compressor; a heat exchanger that raises the temperature of air, containing the compressed air, by means of exhaust gas discharged from the incinerator; a blower that blows air to the compressor; a supply unit that can supply air to the heat exchanger, supply the air heated by the heat exchanger to the turbine, and supply air discharged from the turbine to the incinerator, and also allows some of the air heated by the heat exchanger to bypass the turbine and be supplied to the incinerator; and a control unit that controls at least one of the amount of bypass air, which bypasses the turbine and is supplied to the incinerator, and the amount of air blown from the blower to the compressor.
Capable of increasing both solid-liquid separation efficiency and cleanability. A separation device includes a casing including an object discharging port on a first direction E1 side than an object feeding port, and a separated liquid discharging port on a second direction E2 side than the object feeding port; a screw shaft; a first screw blade having a second surface that faces space Sla into which a pre-object is fed from the object feeding port in the casing; and a second screw blade having a first surface that faces the space Sla into which the pre-object is fed from the object feeding port in the casing. An end part of the first screw blade on the first direction E1 side is placed on the first direction E1 side than an end part of the second screw blade on the first direction E1 side.
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
B30B 9/12 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
C02F 11/121 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering
22.
BIOLOGICAL TREATMENT METHOD AND BIOLOGICAL TREATMENT SYSTEM
This biological treatment method biologically treats a nitrogen component included in organic wastewater, the method including: subjecting ammonia nitrogen included in the organic wastewater to nitrous acid type nitrification treatment in a first reaction tank using ammonia-oxidizing bacteria included in activated sludge; supplying the activated sludge from the first reaction tank to a sterilization tank; sterilizing, with nitrite nitrogen, nitrite-oxidizing bacteria included in the activated sludge supplied from the first reaction tank, while keeping the pH below or around neutral, in the sterilization tank; and supplying the sterilized activated sludge to the first reaction tank.
This water sprinkling filter bed apparatus is provided with: a tank in which a carrier for performing a biological treatment of a liquid of interest is filled: a first water sprinkling tube which is fixed to the tank and sprinkles the liquid of interest into the tank; a supply device which supplies the liquid of interest to the first water sprinkling tube; and a control device which controls the supply of the liquid of interest to the first water sprinkling tube from the supply device.
The present invention comprises: a tank; a flow passage that has at least a portion thereof provided within the tank and that causes ozone and a liquid containing a treatment target to flow downward and out into the tank; and plates in the shape of a screw that are provided to the outer wall of the flow passage and come into contact with the treatment target.
The present invention comprises: a tank; a first flow passage that has at least a portion thereof provided within the tank and that causes a liquid containing a treatment target to flow downward and out into the tank; a second flow passage that is provided outside the tank, causes the liquid inside the tank to flow therein from the tank, and further causes the liquid that has entered therein to flow out into the tank; a first supply pipe that supplies ozone to the first flow passage; and a second supply pipe that supplies ozone to the second flow passage.
This mixing and turbidity-removing device comprises a substantially cylindrical tank having a bottom part, and a partition part that is provided on the inner side of the side wall of the tank and that partitions the inside of the tank into an upper section and a lower section. The partition part is provided with: a tube that has a circular opening part and that is provided on the upper side of the partition part so as to essentially have the same axial direction as the tank, the upper end of the tube being open, and the lower end of the tube communicating with the opening part, thereby allowing communication between the upper section and the lower section; an inflow pipe through which water being treated flows in; and an outflow pipe through which treatment water flows out. The inflow pipe communicates with a flow passage defined by the inner side of the side wall of the tank, the outer side of the side wall of the tube, and the partition part. The outflow pipe communicates with the tank while being inclined relative to the horizontal direction.
Appropriately perform solid-liquid separation. A separation device (1) includes a casing (10), a screw shaft (12), a first screw blade (14), and a second screw blade (16). At least one of the first screw blade (14) and the second screw blade (16) has an opening that penetrates from one surface to another surface, designed based on the outflow of separated liquid (C) and solids from the screw blade.
B30B 9/12 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
C02F 11/121 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering
B30B 9/14 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
28.
CLEANING METHOD OF MEMBRANE FILTRATION SYSTEM AND MEMBRANE FILTRATION SYSTEM
A cleaning method of a membrane filtration system in which a plurality of modules including an inlet side region and an outlet side region separated by a filtration membrane are connected in parallel by a common blow header pipe in the inlet side region, the method including backwashing and blowing in which after the backwashing is started, gas is introduced into the plurality of modules through a blow header pipe. The method further includes forming, before the blowing is started, a gas layer across an entire longitudinal direction of the blow header pipe.
Provided is an organic wastewater treatment method in an organic wastewater treatment device. The organic wastewater treatment device comprises: a reaction tank in which a biological treatment is performed on a pollutant that is contained in organic wastewater; a solid-liquid separation device which separates sludge from wastewater that has been discharged from the reaction tank; and a feeder which feeds at least oxygen to the reaction tank. The reaction tank has a tubular membrane carrier that causes molecular diffusion, in the reaction tank via a plurality of holes, of oxygen which has been fed by the feeder. The membrane carrier causes the molecular diffusion of the oxygen in the reaction tank via the plurality of holes so as to form a biological membrane that contains aerobic bacteria on the outer circumference of the membrane carrier. The biological membrane subjects the pollutant to a biological treatment via the aerobic bacteria. The solid-liquid separation device separates sludge containing the biological membrane from the wastewater.
C02F 3/20 - Activated sludge processes using diffusers
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
30.
Production System, Program, Control Method, and Production Method
A water treatment system 1 includes at least one aquaculture water tank 10 configured to culture water creatures; at least one hydroponic culture water tank 20 configured to hydroponically grow plants; and a water treatment device 30 configured to treat water discharged from the aquaculture water tank 10 and supply the treated water to the hydroponic culture water tank 20. The water treatment device 30 controls the amount of nutrient content for the plants to be supplied to the hydroponic culture water tank 20 by generating the nutrient content from impurities contained in the water discharged from the aquaculture water tank 10 and in a case where the amount of the generated nutrient content is excessive, storing the excessive nutrient content in a storage tank 33.
This digestion system comprises: a digestion tank for digesting organic materials of excess sludge by means of anaerobic bacteria; first piping for supplying the excess sludge to the digestion tank; second piping having a greater pipe diameter than the first piping; a first storage tank which communicates with each of the first piping and the second piping and stores the excess sludge transferred from the second piping; a transfer means which continuously transfers, for a predetermined time, the excess sludge stored in the first storage tank to the digestion tank through the first piping; and a heater which heats the excess sludge inside the first piping by means of a fluid.
A water treatment system includes a plurality of tanks; a plurality of blow systems connected to tanks respectively; a blower unit configured to supply air to tanks through the air blow systems; and a control device configured to: calculate a pressure loss in each of the air blow systems; and control supply of water to be treated to each of the tanks, according to the calculated pressure losses.
Provided is a mixing/clarifying device 100 including a coagulant feeder 10 that feeds coagulant to water to be treated to obtain coagulant-containing water and a tank 20 in which the coagulant-containing water is mixed to form a floc and solid-liquid separation is performed. The tank 20 includes an outer cylinder 21 having an inflow port 210 that flows the coagulant-containing water into the tank 20 and an inner cylinder 22 arranged inserted from the upper side of the tank 20 to the lower side of the inflow port of the outer cylinder 21 and having a lower end open in the tank 20.
A power supply that supplies power to a capacitive load comprises: a converter; an inverter; a resonant transformer; a detector configured to detect output frequency or output current and output voltage; and a controller configured to control the inverter, wherein the controller is configured to: calculate output power; adjust the output frequency within a predetermined frequency search range, adjust the output voltage within a predetermined voltage search range, and specify, as a frequency target value, a minimum value of the output frequency with which the output power reaches predetermined output power; and control the inverter so that the output frequency will be the frequency target value, adjust the output voltage within the predetermined voltage search range, and specify, as a voltage target value, a value of the output voltage with which the output power is target output power.
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 7/539 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
C01B 13/11 - Preparation of ozone by electric discharge
In the present invention, the concentration power of a cleaning solution is increased. A membrane filtration system comprises: a filtration body (32) for filtering, through a membrane, a cleaning solution (W0) from a scrubber that purifies exhaust gas from a ship's engine; and a cleaning means for cleaning the filtration body (32). The cleaning means executes cleaning by switching between: standard cleaning in which a pressurized liquid is supplied to the filtration body (32) and then discharged from the filtration body (32); and pulse cleaning in which the filtration body (32) is pressurized and then depressurized.
C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
36.
PRODUCTION SYSTEM, PROGRAM, CONTROL METHOD, AND PRODUCTION METHOD
To improve the efficiency of aquaculturing aquatic organisms and hydroponics. The water treatment system 1 comprises: at least one aquaculture tank 10 for cultivating aquatic organisms; at least one hydroponic cultivation tank 20 for hydroponic cultivation; and a water treatment device 30 which treats the wastewater from the aquaculture tank 10 and supplies the treated water to the hydroponic cultivation tank 20, wherein the water treatment device 30 produces nutrients for plants from impurities contained in the wastewater from the aquaculture tank 10, and when the nutrients produced are excessive, stores excess nutrients in the storage tank 33 to control the amount of nutrients to be supplied to the hydroponic cultivation tank 20.
Provided is a sprinkler apparatus with which it is possible to maintain rotation torque by spray flow and to sprinkle water evenly over a wide range. This sprinkler apparatus 10 is configured so as to have piping 30 and a plurality of spray units 35. A spray opening 37 that sprays water is formed in each spray unit 35. At least one of the spray openings 37 is positioned facing horizontally. The piping 30 rotates due to the spray flow of water from the spray opening 37 positioned facing horizontally. A diffusion plate 40 that diffuses the spray water is attached to each of the spray units 35, each diffusion plate 40 having: a base part 50 fixed to a side part 38 below the spray unit 35, the base part 50 extending in the spray direction of the water; and a curved surface part 60 that is curved so as to reach from the base part 50 through the center of the spray opening 37 to a spray axis center C extending in the spray direction of the water, the curved surface part 60 extending in the spray direction of the water.
C02F 3/04 - Aerobic processes using trickle filters
B05B 3/06 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction
The present invention achieves appropriate solid-liquid separation. This separation apparatus (1) is provided with a casing (10), a screw shaft (12), a first screw blade (14), and a second screw blade (16). The first screw blade (14) and/or the second screw blade (16) has an opening that penetrates from one surface to the other surface thereof, and that is designed on the basis of outflow of solid content and separated liquid (C) from the screw blade.
B01D 43/00 - Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
C02F 11/121 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering
The present invention makes it possible to achieve both solid-liquid separation efficiency and washability. This separation device (1) comprises: a casing (10) including a subject discharge port (11B) provided in a first direction (E1) from a subject introducing port (11A) and a separated liquid discharge port (11A) provided in a second direction (E2) from the subject introducing port (11A); a screw shaft (12); a first screw blade (14) having a second surface (14b) that faces a space (S1a) in which a subject (A0) is introduced from the subject introducing port (11A) inside the casing (10); and a second screw blade (16) having a first surface (16a) that faces the space (S1a) in which the subject (A0) is introduced from the subject introducing port (11A) inside the casing (10), wherein the first direction (E1)-side end section (14B) of the first screw blade (14) is positioned closer to the first direction (E1) side than the first direction (E1)-side end section (16B) of the second screw blade (16).
C02F 11/121 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by mechanical de-watering
B30B 9/02 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
40.
WATER TREATMENT METHOD, CONTROL DEVICE FOR WATER TREATMENT DEVICE, AND CONTROL PROGRAM FOR WATER TREATMENT DEVICE
Provided is a water treatment method by which treated water can be obtained by causing water to be treated to pass through a particulate-filled layer. In this water treatment method, the water depth of a water layer adjacent to the upper surface of the particulate-filled layer is no less than a water depth at which foam is not generated in the water to be treated in the water layer.
An information processing system comprises: an acquisition means configured to acquire vibration of a device that vibrates during operation, as time-series data of a physical quantity A indicated by a plurality of axis components in a three-dimensional coordinate system; a calculation means configured to calculate a first evaluation value E indicating a degree of bias of the vibration of the device between axes, based on the time-series data of the physical quantity A; and an estimation means configured to estimate a degradation level G of the device based on the first evaluation value E.
122). The concentration of the analyte in the solution sample is calculated from the relationship between the known amount added to the reference solution sample and the value of the parameter provided by substituting a time T into the constructed approximation formula.
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
43.
WATER TREATMENT SYSTEM, WATER TREATMENT METHOD, AND PROGRAM
A system for treating water of interest, which is equipped with a plurality of reaction vessels, can calculate pressure losses of air-blowing lines respectively connected to the reaction vessels, wherein the supply of the water of interest to the plurality of reaction vessels can be controlled in a water-of-interest supply control section respectively depending on the calculated pressure losses of the air-blowing lines for the plurality of reaction vessels.
This method for cleaning a membrane filtration system in which a plurality of modules, each including a primary-side region and a secondary-side region that are separated by a filter membrane, are connected in parallel in the primary-side region by means of a common blow header pipe, includes a back washing step, and a blowing step for introducing a gas into the plurality of modules through the blow header pipe after the back washing step has begun, and also includes, before the blowing step has begun, forming a gas layer inside the blow header pipe over the entire connecting direction of the plurality of modules.
A screw type separation device includes: a casing that has a separated liquid discharge port on one end part side and has an object discharge port on the other end part side, while the other end part side is positioned lower, in terms of vertical directions, than the one end part side; a screw shaft provided inside the casing; a first screw blade; and a second screw blade that forms a first space between one face and the first screw blade facing the one face and forms a second space between the other face and the first screw blade facing the other face.
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
46.
SCREW-TYPE SEPARATION DEVICE, CASING, WASTEWATER TREATMENT SYSTEM, AND CLEANING METHOD OF SCREW-TYPE SEPARATION DEVICE
The present invention minimizes decline in discharge efficiency of a target object. This screw-type separation apparatus (1) is equipped with: a caging (10) that has provided therein an object discharge port (31B) which is disposed on the side of one end (30)B to discharge a dehydrated object (A) and a separated liquid discharge port (31C) which is disposed on the side of the other end (30C) to discharge a separated liquid (C) separated from the object (A) through dehydration; a screw shaft (12) that is provided inside the caging (10) so as to extend in an extension direction E extending from the one end (30B) toward the other end (30C); a first screw vane (14) that extends spirally on the outer circumferential surface of the screw shaft (12); and a second screw vane (16) that extends spirally on the outer circumferential surface of the screw shaft (12) so as to be separated from the first screw vane (14) by a prescribed gap in the extension direction (E). The caging (10) has a groove (34) formed in the inner circumferential surface (32a) thereof.
B30B 9/14 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
The present invention minimizes decline in discharge efficiency of a target object. This screw-type separation apparatus (1) is equipped with: a caging (10) that has provided therein an object discharge port (31B) which is disposed on the side of one end (30)B to discharge a dehydrated object (A) and a separated liquid discharge port (31C) which is disposed on the side of the other end (30C) to discharge a separated liquid (C) separated from the object (A) through dehydration; a screw shaft (12) that is provided inside the caging (10) so as to extend in an extension direction E extending from the one end (30B) toward the other end (30C); a first screw vane (14) that extends spirally on the outer circumferential surface of the screw shaft (12); and a second screw vane (16) that extends spirally on the outer circumferential surface of the screw shaft (12) so as to be separated from the first screw vane (14) by a prescribed gap in the extension direction (E). The caging (10) has a groove (34) formed in the inner circumferential surface (32a) thereof.
B30B 9/14 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
This mixing/clarifying device 100 includes a flocculant introduction section 10 that introduces a flocculant into water to be treated and thereby obtains flocculant-containing water, and a tank 20 in which the flocculant-containing water is mixed, a floc is formed, and solid/liquid separation is subsequently performed. The tank 20 is provided with: an outer cylinder 21 having an inflow port 210 that causes the flocculant-containing water to flow into the tank 20; and an inner cylinder 22 that is inserted and arranged in the tank 20 from the upper side to a side below the inflow port of the outer cylinder 21 and that has an open lower end within the tank 20.
The present invention provides a light source device that has a simple configuration, that exhibits sufficient waterproof properties and cooling properties, and that can be manufactured at a low cost. This light source device comprises: a cylindrical or columnar support that is highly heat-conductive at least at an outer peripheral surface-side surface section thereof; a flexible sheet-shaped light source that has a plurality of ultraviolet ray-emitting diode elements and that is disposed on the outer peripheral surface of the support to cover at least a part of the outer peripheral surface of the support; and a bag-shaped or cylindrical heat-shrinkable member that has waterproof properties and ultraviolet ray-transmitting properties and that covers at least the flexible sheet-shaped light source by being in close contact with the same.
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
A method of removing soluble manganese includes: a mixing step of mixing water for treatment, activated carbon micropowder having an average particle size of not less than 0.1 μm and not more than 10 μm, and an oxidizing agent to obtain a water/activated carbon mixture; and a membrane filtration step of membrane filtering the water/activated carbon mixture to obtain treated water.
This power source device which supplies power to a capacitive load comprises a converter, an inverter, a resonant transformer, a detection unit that detects an output frequency or output current and an output voltage, and a control unit that controls the inverter, wherein the control unit: calculates an output power; adjusts the output frequency within a prescribed frequency search range and adjusts the output voltage within a prescribed voltage search range; identifies, as a frequency target value, a minimum output frequency value at which the output power reaches a prescribed output power; controls the inverter such that the output frequency reaches the frequency target value and adjusts the output voltage within the prescribed voltage search range; and specifies, as a voltage target value, an output voltage value at which the output voltage is at a target output voltage.
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
52.
INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING DEVICE, PROGRAM, AND INFORMATION PROCESSING METHOD
This information processing system is provided with: an acquisition means which acquires the vibrations of a device that vibrates during operation as time-series data of a physical quantity A expressed as a plurality of axial components in a three-dimensional coordinate system; a calculation means which, on the basis of the time-series data of the physical quantity A, calculates a first evaluation value E that indicates the degree of deviation of the vibrations of the device between the axes; and an estimation means which estimates a degradation degree G of the device on the basis of the first evaluation value E.
A wastewater treatment system includes a plurality of reaction tanks, a blowing pipe, a blower unit, and an air supply amount controller. The air supply amount controller includes: a water quality measurement unit configured to measure a state of wastewater; a necessary air amount acquisition unit configured to acquire, a necessary air amount for achieving a predetermined target water quality of wastewater; a target in-pipe pressure calculation unit configured to calculate a blowing pipe loss pressure when the necessary amount of air is supplied into the blowing pipe, calculate a target in-pipe pressure based on the blowing pipe loss pressure, and change the calculated target in-pipe pressure in accordance with change of the necessary air amount; and a blowing control unit configured to control air supply from the blower unit so that the pressure in the blowing pipe becomes equal to the target in-pipe pressure.
This membrane filtration method includes: a membrane filtration process for adding a coagulant to water to be treated which contains viruses, and filtering the water to be treated by using a filtration membrane; and a cleaning process for, after the membrane filtration process, cleaning the filtration membrane, the membrane filtration process and the cleaning process being repeatedly performed, wherein, in the membrane filtration process, in the initial period of filtration, at least either an operation of filtering the water to be treated that includes the coagulant added by an amount larger than the amount of a coagulant added in a normal case, or an operation of filtering the water to be treated that has a pH lower than the pH of water to be treated in a normal case, is performed.
An activated carbon slurry supply method comprises: a step A of obtaining activated carbon slurry containing ground activated carbon and raw material water, the step A including, in any order, a step A1 of grinding raw material activated carbon in a grinder to prepare the ground activated carbon having a smaller particle size than a particle size of the raw material activated carbon, and a step A2 of mixing either the raw material water and the raw material activated carbon or the raw material water and the ground activated carbon in a mixer; a step B of conveying the activated carbon slurry to a point of mixing with dilution water or a point of mixing with water to b e treated; and a step C of adding an acid at least before end of the step A.
B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
A water treatment apparatus 100 subjects water to be treated to ultraviolet treatment with ultraviolet light emitted from LED elements 31. The water treatment apparatus 100 comprises: a flow channel 10 through which water to be treated flows; an LED element housing chamber 30 located on outside of the flow channel 10, with a window portion 20 formed by a transparent member being interposed therebetween; and a plurality of LED elements 31 arranged in the LED element housing chamber 30, wherein the LED element housing chamber 30 has an inlet 34 and an outlet 35 for dry gas, and light emitting surfaces of the plurality of LED elements 31 are exposed to a space in the LED element housing chamber 30.
A water treatment device includes: a dual-pipe structure unit including an outer pipe, an inner pipe provided in the outer pipe, and a prevention member provided between the outer pipe and the inner pipe; and a light source unit radiating ultraviolet light in the axial direction to irradiate water subject to treatment flowing in the inner pipe. The inner pipe includes an opposing end facing the light source unit across a gap and an inflow end positioned opposite to the opposing end. The outer pipe includes an outflow port provided on an outer circumferential surface of the outer pipe. The water subject to treatment flowing out of the inner pipe via the gap flows out from the outflow port.
Provided is a water treatment apparatus that can uniformly irradiate water to be treated with ultraviolet light in sufficient irradiation quantity and in which a cleaning device and the like can be mounted easily. A water treatment apparatus that subjects water to be treated to ultraviolet treatment using ultraviolet light, the water treatment apparatus comprises: a flow channel through which water to be treated flows; and an ultraviolet irradiation portion that is located on an opposite side of the flow channel from an inlet side, and irradiates the water to be treated flowing in the flow channel with ultraviolet light via a window portion toward the inlet side, the window portion being formed by a transparent member, wherein the flow channel includes a diameter increase portion, and the diameter increase portion is provided with at least one of: a cleaning device used to clean the window portion; and a sensor.
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
C02F 1/36 - Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
C09D 127/18 - Homopolymers or copolymers of tetrafluoroethene
59.
Method for estimating number of microparticles in sample
Providing a method of estimating the number of microparticles such as microorganisms in a sample, without performing complicated operations. The method comprises counting by constant flow the number of target microorganisms contained in the sample at a predetermined flow rate, sectioning measurement data obtained as a result of the constant flow counting into a predetermined number of sections by a predetermined unit time for a section, counting the number of sections in which microorganisms are detected and the number of sections in which they are not detected, in the predetermined number of sections; and estimating the number of microorganisms in the sample, by a statistical method from the flow rate of the sample in the constant flow counting step, the predetermined number of sections and the predetermined unit time in the sectioning step, and the number of sections in which microorganisms are detected in the counting step.
An organic wastewater treatment method that includes a raw sludge removal step, a raw sludge concentration step, a biological treatment step, an excess sludge separation step, an excess sludge concentration step, a sludge mixing step, and a methane fermentation treatment step. The treatment method further includes a sterilization step for heating and sterilizing the concentrated excess sludge upstream of the sludge mixing step. At least one among: (1) the temperature to which the concentrated excess sludge is heated during sterilization, (2) the concentration of concentrated raw sludge and/or the concentration of the concentrated excess sludge, and (3) the mixture ratio between the concentrated raw sludge and the concentrated excess sludge is adjusted according to the fluctuation in the amount of raw sludge generated and the amount of the excess sludge generated, and the temperature of the mixed sludge is controlled to a temperature suited for methane fermentation.
Provided is a purification device (100) having a purification structure (10) which includes an electric conductor (1) and induces a redox reaction, and a treatment tank (20) for holding thereinside the purification structure and water (30) to be purified by the purification structure. A part of the purification structure is in contact with a gas phase (40), and the other part of the purification structure is in contact with the water to be treated. The purification structure is installed inside the treatment tank so that the length (L1) in the vertical direction (Y) is longer than the length (L2) in the width direction (Z) perpendicular to the vertical direction (Y). The purification electrode consists only of a conductor, a redox catalyst carried on the conductor, and a binder.
Provided is a filter configured to reduce the time until filtered water, obtained by sufficiently removing virus, is obtained after the start of filtration. A vertical filter 20 has a filtration membrane 20a and a holding container 20b which holds the filtration membrane 20a. The vertical filter 20 has, at the upper part of the holding container 20b, a filtered-water discharge opening 21 for discharging filtered water, and also has, at the lower part of the holding container 20b, a water discharge opening 22 for discharging initially filtered water and/or cleaning water remaining on the secondary side after backwashing. The water discharge opening 22 provides communication between the secondary-side space Y of the filter 20 and the outside.
An accelerated oxidation treatment method of performing oxidation treatment upon treatment water by supplying ozone and hydrogen peroxide to the treatment water, including an accelerated oxidation treatment process of bringing hydrogen peroxide and ozone into contact with the treatment water, and a bromate ion concentration measurement process of measuring the bromate ion concentration in the treatment water after the accelerated oxidation treatment process, with the amount of hydrogen peroxide supplied in the accelerated oxidation treatment process being adjusted on the basis of the measured value of bromate ion concentration.
An inclined sedimentation acceleration apparatus includes an inclined part having a plurality of inclined flow paths through which raw water flows, and side plates disposed on both sides of the inclined part. An upper ridge part of the inclined part is disposed at a height different from that of an upper ridge part of the side plate. Suspended solids are less likely to accumulate on an upper surface of the inclined sedimentation acceleration apparatus.
A method for removing soluble manganese, said method comprising: a mixing step for mixing water to be treated with an activated carbon micropowder having an average particle size of 0.1-10 µm inclusive and an oxidizing agent to give a water/activated carbon mixture; and a membrane filtration step for filtering the water/activated carbon mixture through a membrane to give treated water.
A method for removing soluble manganese, said method comprising: a mixing step for mixing water to be treated with an activated carbon micropowder having an average particle size of 0.1-10 μm inclusive and an oxidizing agent to give a water/activated carbon mixture; and a membrane filtration step for filtering the water/activated carbon mixture through a membrane to give treated water.
To suitably add an additive and suitably disperse the additive in a fluid. An agitation device (14) having: a water tank (30) into which a fluid flows; a stator vane part (32) provided to the bottom surface (30A) of the water tank (30), the stator vane part (32) being such that a plurality of plate-form members extend radially; an agitation part (34) provided at a position vertically above the stator vane part (32), the agitation part (34) agitating the fluid within the water tank (30); an outlet (38A) provided to a side part (30B) of the water tank (30), the outlet (38A) allowing the fluid within the water tank (30) to flow to the outside; and an additive adding part (40) that adds an additive (P) into the water tank (30) from an addition position (S) that is vertically above the water surface (WA) of the fluid within the water tank (30), the addition position (S) being located on the side opposite to the side where the outlet (38A) is provided within the water tank (30) across the agitation part (34).
A screw type separation device 1 includes: a casing that has a separated liquid discharge port on one end part side and has an object discharge port on the other end part side, while the other end part side is positioned lower, in terms of vertical directions, than the one end part side; a screw shaft provided inside the casing; a first screw blade; and a second screw blade that forms a first space Tl between one face and the first screw blade facing the one face and forms a second space between the other face and the first screw blade facing the other face.
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
69.
WASTE WATER TREATMENT SYSTEM, DEVICE FOR CONTROLLING AIR SUPPLY VOLUME, AND METHOD FOR CONTROLLING AIR SUPPLY VOLUME
The present invention controls the energy consumption necessary for aeration while supplying air appropriately to various tanks. A waste water treatment system (1) comprises multiple reaction tanks (10), aeration pipes (30), an aeration unit (20) and a unit (40) for controlling the air supply volume. The unit (40) for controlling the air supply volume comprises: a water quality measurement section for measuring the condition of the waste water inside the reaction tanks (10); a necessary air volume-acquiring section for acquiring, on the basis of the measurement results of the water quality measurement section, the air volume necessary to achieve the prescribed target water quality for the waste water in the reaction tank (10) for each of the various reaction tanks (10); a target internal pipe pressure-calculating section for calculating the pressure loss in the aeration pipes when air of the necessary volume is supplied to the aeration pipes (30), calculating the target internal pipe pressure on the basis of the pressure loss in the aeration pipes, and changing the calculated target internal pipe pressure according to the changes in necessary air volume; and an aeration control section for controlling air supply from the aeration unit (20) so that the pressure in the aeration pipes (30) reaches the target internal pipe pressure.
[Problem] To provide a membrane filtration method in which reduction in a viral removal rate in the initial period of filtration can be prevented. [Solution] This membrane filtration method comprises: a membrane filtration step for adding a flocculant to water to be treated which contains viruses, and filtering the water to be treated by using a filtration membrane; and a washing step for, after the membrane filtration step, washing the filtration membrane, the membrane filtration step and the washing step being repeatedly performed, wherein, in the membrane filtration step, in the initial period of filtration, at least either an operation (1) of filtering the water to be treated that includes the flocculant added by an amount larger than the amount of a flocculant added in a normal case, or an operation (2) of filtering the water to be treated that has a pH lower than the pH of water to be treated in a normal case, is performed.
The present invention makes it possible to suppress reductions in the separation efficiency for a target material. A screw type separation device 1 has: a casing 10 that has a separated liquid discharge opening 34 on one end part 30 side and has a target material discharge opening 36 on the other end part 32 side, with the other end part 32 side being positioned lower in the vertical direction than the one end part 30 side; a screw shaft 12 provided inside the casing 10; a first screw fin 14; and a second screw fin 16 forming a first space T1 between one surface 16A and the first screw fin 14 facing the one surface 16A and a second space T2 between another surface 16B and the first screw fin 14 facing the other surface 16B. Target material introduced into the first space T1 is moved to the other end part 32 side within the first space T1 by gravity and dehydrated, and dehydrated target material A is discharged through the target material discharge opening 36. Separated liquid C is made to move from the first space T1 to the second space T2 and discharged through the separated liquid discharge opening 34.
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
B30B 9/16 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
A method for supplying an activated carbon slurry comprising a step A for obtaining an activated carbon slurry containing pulverized activated carbon and feedstock water, and a step B for conveying the activated carbon slurry to a site for mixing with diluting water or a site for mixing with water to be treated. In said supply method, step A comprises, in random order: a step A1 for pulverizing feedstock activated carbon with a pulverizer to prepare pulverized activated carbon having a particle size smaller than the particle size of the feedstock activated carbon; and a step A2 for mixing the feedstock water and feedstock activated carbon or feedstock water and pulverized activated carbon with a mixer. The method also comprises a step C for adding acid at least before completion of step A.
A method for supplying an activated carbon slurry comprising a step A for obtaining an activated carbon slurry containing pulverized activated carbon and feedstock water, and a step B for conveying the activated carbon slurry to a site for mixing with diluting water or a site for mixing with water to be treated. In said supply method, step A comprises, in random order: a step A1 for pulverizing feedstock activated carbon with a pulverizer to prepare pulverized activated carbon having a particle size smaller than the particle size of the feedstock activated carbon; and a step A2 for mixing the feedstock water and feedstock activated carbon or feedstock water and pulverized activated carbon with a mixer. The method also comprises a step C for adding acid at least before completion of step A.
This water treatment apparatus 100 is a water treatment apparatus in which water to be treated is irradiated with ultraviolet rays radiated from LED elements 31. The water treatment apparatus 100 is provided with: a flow passage 10 through which the water to be treated flows; an LED element housing chamber 30 disposed outside of the flow passage 10 with a window part 20 therebetween, the window part 20 being composed of a transparent member; and a plurality of LED elements 31 disposed in the LED element housing chamber 30, wherein the LED element housing chamber 30 has an inlet 34 and an outlet 35 for a dry gas, and the light emitting surfaces of the LED elements 31 are exposed to the space inside the LED element housing chamber 30.
Provided is a water treatment device in which water to be treated can be uniformly irradiated with a sufficient amount of ultraviolet radiation, and a cleaning apparatus and the like can be easily mounted. This water treatment device, which uses ultraviolet radiation to treat the water to be treated, is provided with: a flow passage through which the water to be treated flows; and an ultraviolet radiation emitting part which is provided on the opposite side to an inlet port side of the flow passage and emits ultraviolet radiation on the water to be treated flowing in the flow passage, the ultraviolet radiation being emitted on the inlet port side through a window part comprising a transparent member, wherein the flow passage has a diameter expansion part and is provided with at least one among a sensor and a cleaning apparatus used for cleaning the window part on the diameter expansion part.
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
This water treatment apparatus 100 is a water treatment apparatus in which water to be treated is irradiated with ultraviolet rays radiated from LED elements 31. The water treatment apparatus 100 is provided with: a flow passage 10 through which the water to be treated flows; an LED element housing chamber 30 disposed outside of the flow passage 10 with a window part 20 therebetween, the window part 20 being composed of a transparent member; and a plurality of LED elements 31 disposed in the LED element housing chamber 30, wherein the LED element housing chamber 30 has an inlet 34 and an outlet 35 for a dry gas, and the light emitting surfaces of the LED elements 31 are exposed to the space inside the LED element housing chamber 30.
Provided is a water treatment apparatus that can uniformly irradiate water to be treated with ultraviolet light in sufficient irradiation quantity and in which a cleaning device and the like can be mounted easily. A water treatment apparatus that subjects water to be treated to ultraviolet treatment using ultraviolet light, the water treatment apparatus comprises: a flow channel through which water to be treated flows; and an ultraviolet irradiation portion that is located on an opposite side of the flow channel from an inlet side, and irradiates the water to be treated flowing in the flow channel with ultraviolet light via a window portion toward the inlet side, the window portion being formed by a transparent member, wherein the flow channel includes a diameter increase portion, and the diameter increase portion is provided with at least one of: a cleaning device used to clean the window portion; and a sensor.
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
A water treatment device is disclosed and comprises a dual-pipe structure unit, an inner pipe provided in an outer pipe and extending in the axial direction; a light source unit provided to block an opening of a first end of the outer pipe and radiating ultraviolet light to irradiate water subject to treatment flowing in the inner pipe, the inner pipe includes an opposing end facing the light source unit, and an inflow end positioned opposite to the opposing end, the outer pipe includes an outflow port provided on an outer circumferential surface of the outer pipe, and the prevention member includes an inlaid flange provided to block a space between the second end of the outer pipe and the inflow end of the inner pipe, and the inlaid flange is sandwiched between a flange of the second end and a flange of the inflow end.
A water treatment device 10 comprises: a double-tube structure unit 12 that includes an outer tube 20 that extends in the axial direction from a first end 21 to a second end 22, an inner tube 30 that is disposed within the outer tube 20 and that extends in the axial direction, and a restriction member that is disposed between the outer tube 20 and the inner tube 30 and that prevents radial-direction displacement of the inner tube 20 relative to the outer tube 30; and a light source unit 14 that is disposed so as to close, in a fluid-tight manner, an opening of the first end 21 of the outer tube 20, and that irradiates ultraviolet light in the axial direction toward water to be treated that flows through the inside of the inner tube 30. The inner tube 30 has: an opposing end 31 which opposes the light source unit 14 with a gap 76 provided between the opposing end 31 and the light source unit 14; and an in-flow end 32 which is disposed on the side opposite the opposing end 31, and into which the water to be treated flows. The outer tube 20 has an out-flow port 26 provided to an outer peripheral surface 23 of the outer tube 20, and the water to be treated that flows out from within the inner tube 30 via the gap 76 flows out from the out-flow port 26.
Provided are an organic wastewater treatment method and treatment device with which it is possible to reduce the size of a methane fermentation tank, increase the amount of gas generated, and minimize cost. This treatment method includes a raw sludge removal step, a raw sludge concentration step, a biological treatment step, an excess sludge separation step, an excess sludge concentration step, a sludge mixing step, and a methane fermentation treatment step. The treatment method further includes a sterilization step for heating and sterilizing the concentrated excess sludge upstream of the sludge mixing step. At least one among: (1) the temperature to which the concentrated excess sludge is heated in the sterilization step, (2) the concentration of concentrated raw sludge in the raw sludge concentration step and/or the concentration of the concentrated excess sludge in the excess sludge concentration step, and (3) the mixture ratio between the concentrated raw sludge and the concentrated excess sludge in the sludge mixing step is adjusted according to the fluctuation in the amount of raw sludge generated and the amount of the excess sludge generated, and the temperature of the mixed sludge is controlled to a temperature suited for methane fermentation.
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
C12N 1/00 - Microorganisms, e.g. protozoaCompositions thereofProcesses of propagating, maintaining or preserving microorganisms or compositions thereofProcesses of preparing or isolating a composition containing a microorganismCulture media therefor
[Problem] The purpose of the present invention is to provide a high-efficiency aeration agitator which is low powered and whereby oxygen dissolving efficiency is enhanced. [Solution] The present invention is characterized by comprising: a tank for storing a treatment liquid; an air diffusion means having an air diffusion part for discharging fine bubbles, the air diffusion part being provided inside the tank; an impeller rotated by a drive device, the impeller being provided above the air diffusion part; and a control means for controlling the drive device; the air diffusion part being provided so that a plane of projection of the air diffusion part with respect to a bottom surface and a plane of projection of the impeller with respect to the bottom surface are not superposed with respect to the impeller, and the control means controlling the drive device to cause the impeller to rotate when fine bubbles are discharged into the tank from the air diffusion part.
Provided is a method for estimating the number of microparticles in a sample, a representative example being microorganisms, wherein the microparticle count can be estimated quickly and easily, without the need to perform cumbersome operations. A method for estimating the number of microorganisms in a sample, wherein the method comprises: a step for constant-rate counting, at a predetermined flow rate, the number of microorganisms that are the subject and included in a sample; a step for sectioning measurement data obtained as a result of the constant-rate counting into sections of a predetermined number of divisions, one division corresponding to a predetermined unit time; a step for counting, from among the sections of the predetermined number of divisions, the sections where microorganisms were detected and sections where microorganisms were not detected; and a step for estimating the number of microorganisms in the sample by a statistical technique from the flow rate of the sample in the constant-rate counting step, the predetermined number of divisions and predetermined unit time in the sectioning step, and the number of sections where microorganisms were detected in the section number counting step.
An accelerated oxidation treatment method for feeding ozone and hydrogen peroxide to water to be treated and performing an oxidation treatment on the water to be treated, wherein the accelerated oxidation treatment method is characterized in including: an accelerated oxidation treatment step for bringing hydrogen peroxide and ozone into contact with the water to be treated; and a bromate ion concentration measurement step for measuring the bromate ion concentration in the water to be treated after being subjected to the accelerated oxidation treatment step; the amount of hydrogen peroxide supplied in the accelerated oxidation treatment step being adjusted on the basis of the measured value of the bromate ion concentration.
Provided is an inclined settling acceleration device wherein suspended solids are not easily deposited on the upper surface of the device. The inclined settling acceleration device 100 is provided with an inclined part 10 having a plurality of inclined flow paths 30 for raw water to flow, and side plates 20 disposed on both sides of this inclined unit 10. The upper end parts 15 of the inclined part 10 are positioned at a different height from the upper end parts 21 of the side plates 20.
This invention suppresses energy consumption required for feeding air. A wastewater treating system (1) includes: a plurality of reaction vessels (10); air feeding pipes (30); an air feeding unit (20); and a supplied-air-amount control unit (40) that controls the amount of air supplied to the reaction vessels (10). The supplied-air-amount control unit (40) includes: a water quality measuring unit that measures the state of wastewater in the reaction vessels (10); a required-air-amount acquiring unit that acquires, on the basis of the measurement result obtained by the water quality measuring unit, a total required amount of air, which is a total amount of air for all of the reaction vessels (10) required for achieving a predetermined target water quality of wastewater in the reaction vessels (10); a target pipe-internal-pressure calculating unit that calculates target pipe internal pressures in the air feeding pipes (30) required for supplying the total required amount of air; and an air feeding control unit that controls the supply of air from the air feeding unit (20) so that the pressures in the air feeding pipes (30) reach the target pipe internal pressures. The target pipe internal pressures change in accordance with the state of the wastewater in the reaction vessels (10) .
A measuring method of bromate ion concentration includes a first fluorescence intensity measuring process including a process of passing hydrochloric acid through an anion exchanger to elute bromate ions adsorbed to the anion exchanger into the hydrochloric acid and a process of measuring the fluorescence intensity of the hydrochloric acid passed through the anion exchanger, a second fluorescence intensity measuring process including a process of passing a hydrochloric acid solution containing a fluorescent substance whose fluorescence intensity changes due to coexistence of bromate ions through an anion exchanger to elute bromate ions adsorbed to the anion exchanger into the hydrochloric acid solution and a process of measuring the fluorescence intensity of the hydrochloric acid solution passed through the anion exchanger, and a calculation process determining the bromate ion concentration in the water sample by using the difference between the fluorescence intensities of the hydrochloric acid solution and the hydrochloric acid.
The purpose of the present invention is to provide a water discharge system in which it is possible to adequately minimize the incidence of rust, scale, hydrogen sulfide, etc. This water discharge system is provided with a flow path through which discharge water flows, and an electromagnetic wave generator that has an electromagnetic wave emitter immersed in discharge water flowing through the flow path and an alternating-current generator that passes an alternating current to the electromagnetic wave emitter. The electromagnetic wave emitter has a portion in which, in a plane intersecting the direction in which the discharge water flows, the direction in which the alternating current flows differs by 180°.
A casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.
B04B 1/20 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
B30B 9/12 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
B30B 9/14 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
B01D 43/00 - Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration
C02F 3/00 - Biological treatment of water, waste water, or sewage
C02F 9/00 - Multistage treatment of water, waste water or sewage
[Problem] The purpose of the present invention is to provide a stirring apparatus that requires less power and that can extremely uniformly stir the interior of a stirring tank. [Solution] The present invention includes a stirring tank 2, a rotor blade 5 provided in the stirring tank 2, and stator blades 8 that are provided at the bottom of the stirring tank 2 and that extend radially, and is characterized in that the rotor blade 5 includes one or more flat tapered blades 6.
0 of the main pipe is greater than 0.2 and less than 0.8, and the plurality of branch pipes are arranged according to: respective effluent flow ratios, at a time a liquid flows into the main pipe in a predetermined flow velocity range, determined in accordance with respective arrangement orders of the plurality of branch pipes along a direction in which the liquid flows and along the longitudinal direction of the main pipe; and respective areas of circular or hollow-circular sections allotted to the plurality of branch pipes.
B05B 1/20 - Perforated pipes or troughs, e.g. spray boomsOutlet elements therefor
C02F 3/04 - Aerobic processes using trickle filters
B05B 3/06 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction
B05B 3/02 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
C02F 103/00 - Nature of the water, waste water, sewage or sludge to be treated
Provided is a water treatment system that prevents overlook and misdetection of abnormal flocculation. The water treatment system includes a mix tank, a flocculation tank, a plurality of floc-particle-diameter measurement devices, a fault detection device that detects abnormal flocculation, and a notification device that notifies occurrence of the abnormal flocculation. The fault detection device includes: a calculator that calculates at least one of a difference and a ratio between particle diameters of floc; a storage that stores therein a tolerable range of at least one of the difference and the ratio between the particle diameters of floc; a determiner that, when the calculated value is within the tolerable range, determines that it is normal, and when the calculated value is outside the tolerable range, determines that it is abnormal; and an outputter that transmits an abnormal flocculation detection signal to the notification device.
The purpose of the present invention is to provide a terminal and display method that are capable of displaying, with a simple method, operation procedure information of equipment in an accurate position upon an image of the equipment, using augmented reality (AR) technology. An AR image is created of operation procedure information to which is applied position information with a semi-transparent static image data of equipment to be operated as the basis therefor. The semi-transparent static image is displayed overlaid with a realtime image of real space. With the realtime image upon a monitor matched with the semi-transparent static image, the AR image is switched with the semi-transparent static image and displayed on the monitor by a touch input image operation of a terminal monitor.
This settling tank is provided with a settling section for precipitating solids in water that is being treated, and a filtering section for filtering water that is being treated and has passed through the settling section with an upward flow. The filtering section is provided with multiple flow channels for the water being treated that are formed by partition walls that extend in the depth direction of the settling tank. The flow channels for the water being treated are provided with a filter material layer, an upper screen provided above the filter material layer, a treated water outflow part out of which the filtered water flows, and a gas-jetting port for stirring the filter material layer using aeration when cleaning the filter material layer.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Ozonizers and electrolysers, in the nature of ozone generating or deodorizing apparatus for industrial and household use Ozone generators for purification of water
97.
IMAGING DEVICE FOR INNER WALL SURFACES OF HOLLOW CONSTRUCTION
Provided is a device with which inner walls of a hollow construction can be imaged or observed with an accuracy equal to or greater than when viewed by a person and without a person entering inside the hollow construction. This imaging device for inner walls of a hollow construction comprises: an imaging means; a rotating platform to which the imaging means can be mounted and which can be rotated by remote manipulation; a gondola to which the rotating platform can be fixed and which comprises a damping means; a strap-like member that can engage with the gondola; a lifting/lowering means that moves the gondola, which is suspended by the strap-like member, up and down inside the hollow construction and can hold the gondola in a prescribed position; and a remote control means that is capable of remotely controlling the imaging by the imaging means and the rotation of the rotatable rotating platform.
The purpose of the present invention is to provide a bromine ion concentration measuring method that enables the accuracy of measuring bromine ion concentration using a fluorescent substance to be further improved. The method for measuring bromine ion concentration comprises: a first fluorescence intensity measurement step that includes a step in which hydrochloric acid is passed through an anion exchanger and bromine ions adsorbed on the anion exchanger are eluted into the hydrochloric acid, and a step in which the fluorescence intensity of the hydrochloric acid that has passed through the anion exchanger is measured; and a second fluorescence intensity measurement step that includes a step in which a hydrochloric acid solution containing a fluorescent substance whose fluorescence intensity changes due to the coexistence of bromine ions is passed through the anion exchanger and the bromine ions adsorbed on the anion exchanger are eluted into the hydrochloric acid solution, and a step in which the fluorescence intensity of the hydrochloric acid solution that has passed through the anion exchanger is measured. Said method obtains the bromine ion concentration of a water sample using the difference between the fluorescence intensity of the hydrochloric acid solution and the fluorescence intensity of the hydrochloric acid, and the calibration curve.
Provided are a screw-conveyor-type separating device and a waste water treatment system that make it possible to efficiently separate a liquid component from a treated object containing a liquid, and that can be maintained and managed at low cost. The device is provided with a casing (11) for compressing sludge floc at one end, a screw shaft (12), a first screw vane (13) provided in a spiral shape to the outer peripheral surface of the screw shaft, and a second screw vane (14) provided so as to be set apart from the first screw vane at a prescribed interval along the longitudinal direction of the screw shaft. Within the casing, concentrating zones (Q) and separated liquid zones (R) substantially divided from each other are formed by the first screw vane and the second screw vane. The screw shaft is rotated to compress the sludge floc and separate the floc into sludge and a separated liquid in the concentrating zones, and the separated liquid is moved rearward in the separated liquid zones and discharged while the sludge is discharged to the exterior.
B30B 9/14 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
B01D 43/00 - Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
Provided is a water treatment system that can reduce neglect and/or misdetection of floc malformation. A water treatment system that is provided with a mixing tank, a floc-formation tank, a plurality of floc particle-size measuring devices, an abnormality detecting device that detects floc malformation, and a notification device that makes notifications of the occurrence of floc malformation, the abnormality detecting device having a computing unit that calculates floc particle size difference and/or ratio, a storage unit that stores an acceptable range for floc particle size difference and/or ratio, a determining unit that makes a determination of normal when the calculated value is within the acceptable range and that makes a determination of abnormal when the calculated value is outside of the acceptable range, and an outputting unit that sends a floc malformation detection signal to the notification device.
