A water treatment system comprises a source of water including one or more contaminants, an electrocoagulation cell including a housing defining a fluid flow conduit, an anode disposed within the fluid flow conduit, and a cathode disposed within the fluid flow conduit, the housing including an inlet fluidly connectable to the source of water and an outlet, a solids/liquid separation system having an inlet fluidly connectable to the outlet of the housing of the electrocoagulation cell, a solids-rich outlet, and a solids-lean outlet, and a ballast feed system configured to deliver a ballast to the solids/liquid separation system.
An apparatus for generation of at least one of carbon dioxide or hydrogen from saline water is disclosed. The apparatus includes an anodic compartment, an anode on a first side of the anodic compartment, a cathodic compartment, a cathode on a first side of the cathodic compartment, a first cation permeable fluidic separator on a second side of the anodic compartment, a second cation permeable fluidic separator on a second side of the cathodic compartment, a center compartment between the first and second cation permeable fluidic separators, and a mixing chamber including an inlet fluidly connectable to or in fluid communication with the outlet of the anodic compartment and an outlet, the center compartment having one of an outlet fluidly connectable to or in fluid communication with the inlet of the mixing chamber or an inlet fluidly connectable to or in fluid communication with the outlet of the mixing chamber.
A system for treating an aqueous solution is disclosed. The system includes a plurality of modules arranged in series, including a lead module having a shell inlet fluidly connected to a source of an aqueous solution having ammonia, a shell outlet, a lumen inlet fluidly connected to a source of a first acidic solution, and a lumen outlet, and an end module having a lumen inlet fluidly connected to a source of a second acidic solution, a lumen outlet, a shell inlet, and a shell outlet, the shell outlet of the lead module is fluidly connected to the shell inlet of the end module, the first acidic solution has a higher pH than the second acidic solution. Methods of treating an aqueous solution having ammonia with the system are also disclosed.
Aspects and embodiments disclosed herein include an electrochemical system comprising a plurality of electrochemical units arranged in parallel within a closing mechanism, each of the plurality electrochemical units including an anodic compartment, a cathodic compartment, and a center compartment defined between the anodic compartment and the cathodic compartment, a solid bipolar electrode disposed between adjacent anodic and cathodic compartments. The electrochemical system further includes at least one center block housing the solid bipolar electrode and housing one of the anodic compartments and one of the cathodic compartments of electrochemical units of the plurality of electrochemical units disposed adjacent the solid bipolar electrode, spacers disposed within the at least one center block, and inlet and outlet flow passages to the anodic compartments, cathodic compartments, and center compartments of the plurality of electrochemical units defined in the spacers.
C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
C25B 9/21 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes avec plusieurs diaphragmes
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
C02F 1/46 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques
8.
ELECTROCHEMICALLY ACTIVATED PERSULFATE FOR ADVANCED OXIDATION PROCESSES
Water treatment systems are disclosed. The system includes an electrochemical cell having an inlet and an outlet, a cathode comprising a catalytic material for electrochemical generation of persulfate free radicals, and an anode, a source of a persulfate positioned upstream of the electrochemical cell, first contaminant concentration sensor positioned upstream of the electrochemical cell, and a controller operatively coupled to receive one or more input signals from at least the first contaminant concentration sensor. Methods of treating water using the electrochemical cell disclosed herein are disclosed. Methods of facilitating water treatment by providing the electrochemical cell disclosed herein are disclosed. Methods of retrofitting a water treatment system having an AOP by providing the electrochemical cell disclosed herein are disclosed.
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 101/34 - Composés organiques contenant de l'oxygène
C02F 101/36 - Composés organiques contenant des atomes d'halogène
C02F 101/38 - Composés organiques contenant de l'azote
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
9.
ELECTROCHEMICAL PROCESSES FOR ACIDIFICATION OF A LIQUID STREAM WITH IMPROVED EFFICIENCY
An apparatus for generation of carbon dioxide and hydrogen from a saline water source is disclosed. The apparatus includes an anodic compartment, an anode disposed on a first side of the anodic compartment, a cathodic compartment, a cathode disposed on a first side of the cathodic compartment, a first cation permeable fluidic separator disposed on a second side of the anodic compartment, a second cation permeable fluidic separator disposed on a second side of the cathodic compartment, a first center compartment, and a second center compartment. The first center compartment is defined between the second center compartment and the second cation permeable fluidic separator. The second center compartment is defined between the first cation permeable fluidic separator and the first center compartment. The outlet of the first center compartment is one of fluidly connectable to or in fluid communication with the inlet of the second center compartment.
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C25B 9/21 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes avec plusieurs diaphragmes
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
An apparatus for generation of carbon dioxide and hydrogen from a saline water source is disclosed. The apparatus includes an anodic compartment, an anode disposed on a first side of the anodic compartment, a cathodic compartment, a cathode disposed on a first side of the cathodic compartment, a first cation permeable fluidic separator disposed on a second side of the anodic compartment, a second cation permeable fluidic separator disposed on a second side of the cathodic compartment, a first center compartment, and a second center compartment. The first center compartment is defined between the second center compartment and the second cation permeable fluidic separator. The second center compartment is defined between the first cation permeable fluidic separator and the first center compartment. The outlet of the first center compartment is one of fluidly connectable to or in fluid communication with the inlet of the second center compartment.
C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
A wastewater treatment management system including a plurality of monitoring stations, a treating station for introducing a treating agent to wastewater, and a principal processing facility for controlling a dose of the treating agent. A system configured to treat a wastewater stream collection system including a source of a treating agent, a metering valve, a sensor, and a controller operatively connected to the metering valve and the sensor. A non-transitory computer-readable medium including instruction that instruct a controller to perform a method of controlling addition of a treating agent into a wastewater stream collection system. A controller for a system configured to treat odor and control corrosion in a wastewater stream collection system that is operatively connectable to a metering valve for administering a treating agent to a wastewater stream collection system.
Aspects and embodiments disclosed herein include an apparatus for generation of carbon dioxide and hydrogen from a saline water source. The apparatus comprises an electrolytic-cation exchange module (E-CEM) cell unit and at least one electrolyzer, each of the E-CEM cell unit and the at least one electrolyzer disposed between a set of endplates and endblocks.
Aspects and embodiments disclosed herein include an apparatus for generation of carbon dioxide and hydrogen from a saline water source. The apparatus comprises an electrolytic-cation exchange module (E-CEM) cell unit and at least one electrolyzer, each of the E-CEM cell unit and the at least one electrolyzer disposed between a set of endplates and endblocks.
An apparatus for generation of at least one of carbon dioxide or hydrogen from saline water is disclosed. The apparatus includes an anodic compartment, an anode on a first side of the anodic compartment, a cathodic compartment, a cathode on a first side of the cathodic compartment, a first cation permeable fluidic separator on a second side of the anodic compartment, a second cation permeable fluidic separator on a second side of the cathodic compartment, a center compartment between the first and second cation permeable fluidic separators, and a mixing chamber including an inlet fluidly connectable to or in fluid communication with the outlet of the anodic compartment and an outlet, the center compartment having one of an outlet fluidly connectable to or in fluid communication with the inlet of the mixing chamber or an inlet fluidly connectable to or in fluid communication with the outlet of the mixing chamber.
An apparatus for generation of carbon dioxide and hydrogen a saline water source are disclosed. The apparatus may include an anodic compartment having an inlet and an outlet, an anode disposed on a first side of the anodic compartment, a cathodic compartment having an inlet and an outlet, a cathode disposed on a first side of the cathodic compartment, a first cation permeable fluidic separator disposed on a second side of the anodic compartment, a second cation permeable fluidic separator disposed on a second side of the cathodic compartment, a center compartment defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator, and a source of acidic catholyte that is one of fluidly connectable to or in fluid communication with the inlet of the cathodic compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.
C01B 3/36 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec l'oxygène ou des mélanges contenant de l'oxygène comme agents gazéifiants
Methods for processing pretreated phosphogypsum wastewater are disclosed. The pretreated wastewater may be subjected to electrodialysis involving at least one monovalent cation selective membrane. Further downstream membrane treatment may be applied. Upstream precipitation and air-stripping techniques may optionally also be employed. Related systems are also disclosed.
C02F 1/20 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dégazage, c.-à-d. par libération des gaz dissous
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 101/16 - Composés de l'azote, p. ex. ammoniac
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
17.
ENABLING INTERNET OF THINGS (IoT) CAPABILITIES IN LEGACY WATER TREATMENT SYSTEMS
Methods of monitoring water treatment systems by obtaining measurements of water treatment system parameters and transmitting the measurements to a local controller and cloud-based platform are disclosed. Systems for monitoring water treatment systems are also provided. The systems include at least one sensor positioned to measure a parameter of the water treatment system, a treatment module operably connected to the at least one sensor, and a local controller operably connected to the treatment module and a cloud-based platform. Methods of retrofitting water treatment systems by providing the treatment module and local controller are also disclosed.
A method of treating a wastewater having an ammonia concentration that is toxic to anaerobic bacteria includes introducing the wastewater into an anaerobic biological treatment vessel to produce a digestate, introducing a portion of the digestate into an ammonia removal sub-system to produce an effluent having a lower ammonia concentration than the digestate, diluting the wastewater introduced into the anaerobic biological treatment vessel by introducing a portion of the effluent from the ammonia removal sub-system into the anaerobic biological treatment vessel with the wastewater, and regulating the flow rate of the portion of the effluent from the ammonia removal sub-system to cause the portion of the effluent to be introduced into the anaerobic biological treatment vessel in an amount sufficient to form an anaerobic biological treatment vessel influent having an ammonia concentration lower than an ammonia concentration that is toxic to anaerobic bacteria in the anaerobic biological treatment vessel.
Methods of operating an electrochemical separation device is disclosed. The methods include operating the electrochemical separation device in an active mode until the resistance reaches a predetermined threshold, regenerating the electrochemical separation device in a passive mode until the resistance reaches a predetermined threshold, and resuming operation of the electrochemical separation device in the active mode. The methods also include operating the electrochemical separation device in an active mode for a predetermined period of time, regenerating the electrochemical separation device in a passive mode for a predetermined period of time, and resuming operation of the electrochemical separation device in the active mode. Water treatment systems include the electrochemical separation device and a control module are also disclosed. Methods of facilitating operation of the electrochemical separation device by providing a control sequence are also disclosed.
B01D 65/02 - Nettoyage ou stérilisation de membranes
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
20.
INCREASING FLOW RATE IN ELECTRODEIONIZATION DEVICES
An electrodeionization device includes a spacer comprising a first inlet port, a first outlet port, a first plurality of first flow channels configured to direct fluid in a first direction from the first inlet port to the first outlet port, and a second flow channel in series fluid communication with the first plurality of first flow channels between the first inlet port and first outlet port and configured to direct fluid in a second direction different from the first direction from the first inlet port to the first outlet port.
A method of treating wastewater from a renewable fuel production comprises anaerobically digesting the wastewater to produce digestate and sludge, aerobically treating the digestate to produce an effluent and a second sludge, separating the effluent into a first filtrate and a first reject, treating the sludge, second sludge, and first reject in a solids-liquid separation apparatus to produce recovered water, directing the recovered water into the mixing tank, filtering the first filtrate in a nanofiltration unit to produce a second filtrate and a second reject, filtering the second filtrate in a first reverse osmosis unit to produce a third filtrate and a third reject, filtering the third reject in a second reverse osmosis unit to produce a fourth filtrate and a fourth reject, combining the third filtrate and fourth filtrate to form a product water, and combining the second reject and the fourth reject into a combined reject for disposal.
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/38 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par séparation centrifuge
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
A mobile, modular water treatment system for the production of ultrapure water includes a storage tank, an actinic radiation treatment apparatus disposed on a mobile platform, an electrically driven water treatment apparatus disposed on the mobile platform, downstream of the actinic radiation treatment apparatus, an ion exchange media apparatus disposed on the mobile platform downstream of the electrically driven water treatment apparatus, and a pressure driven filtration sub-system disposed on the mobile platform downstream of the ion exchange media apparatus. The pressure driven filtration sub-system outputs the ultrapure water and is connectable to a water distribution system for a point of use and for recirculation of a portion of the ultrapure water to the storage tank.
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/30 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
23.
USE OF SUPERCRITICAL CARBON DIOXIDE FOR SORBENT EXTRACTION
Systems and methods for treating water containing PFAS are disclosed. Adsorption media may be used to remove PFAS from water. Supercritical carbon dioxide (sCO2) may be used to release PFAS from loaded adsorption media to form an extractant mixture. The PFAS may then be separated from the extractant mixture for downstream storage or destruction.
A method of determining composition of an aqueous solution is disclosed. The method includes obtaining the aqueous solution, removing oxygen from the aqueous solution, determining concentration of dissolved oxygen, removing hydrogen peroxide from the aqueous solution, and determining concentration of dissolved oxygen. The method includes calculating the difference between the concentrations of dissolved oxygen to determine concentration of hydrogen peroxide. A system for determining composition of an aqueous solution is also disclosed. The system includes a feed line connectable to a source of the aqueous solution, an oxygen removal unit, a hydrogen peroxide removal unit, and dissolved oxygen analyzers.
Systems and methods for the reduction and/or destruction of one or more per- or polyfluoroalkyl substances (PFAS) and/or one or more PFAS precursors via an electrochemical oxidation (EOX) system. The systems and methods may include an electrochemical cell having an anolyte compartment, wherein the anolyte compartment includes at least one anode, a catholyte compartment, wherein the catholyte compartment includes at least one cathode, and an ion exchange membrane separating the anolyte compartment and the catholyte compartment, wherein at least one of the anolyte compartment and the catholyte compartment of the electrochemical cell is supplied with at least one influent fluid containing one or more PFAS compounds.
A system and method for the destruction of one or more polyfluoroalkyl substances (PFAS) and/or one or more PFAS precursors via an electrochemical oxidation (EOX) system. In some embodiments, the system for PFAS remediation includes an influent fluid, wherein the influent fluid comprises at least one PFAS species; a reactant delivery unit designed to: (i) deliver oxygen in any form to the at least one influent fluid, (ii) deliver at least one oxygen-containing substance to the at least one influent fluid, and/or (iii) increase the concentration of oxygen in the at least one influent fluid; and at least one electrochemical oxidation device designed to reduce the amount of the at least one PFAS species in the influent fluid.
Systems and methods for treating water containing TOC and PFAS are disclosed. An electrochemical cell may be used to concentrate the PFAS via foam fractionation. The electrochemical cell may destroy TOC and some PFAS compounds. A downstream mineralization process may destroy PFAS compounds in the foam fraction.
C02F 1/465 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par électroflottation
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 101/36 - Composés organiques contenant des atomes d'halogène
28.
Asymmetric Polarity Reversal for an Electrolytic - Cation Exchange Module (E-CEM)
An electrochemical system includes a first electrode disposed in a first electrode compartment, a second electrode disposed in a second electrode compartment, a center compartment disposed between and separated from the first electrode compartment and the second electrode compartment by cation exchange membranes, an electrical power source electrically coupled to the first electrode and to the second electrode, and a control system configured to perform repeating cycles of causing the electrical power source to apply a positive voltage to the first electrode and a negative voltage to the second electrode for a first amount of time, reverse polarities of the voltages applied to the electrodes after the first amount of time, and maintain the reversed polarities for a second amount of time, the second amount of time being different from the first amount of time.
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
Methods of treating CMP wastewater comprising azoles are disclosed. The method includes providing the wastewater having a first azole concentration, introducing the wastewater to an inlet of a wastewater treatment system constructed and arranged to produce and introduce free radicals into the wastewater, and activating the wastewater treatment system to produce and introduce the free radicals into the wastewater in an amount sufficient to reduce the azole concentration in the wastewater and produce treated water having a second azole concentration, less than the first azole concentration. Methods of facilitating treatment of CMP wastewater comprising azoles by providing a water treatment system constructed and arranged to produce and introduce free radicals into the wastewater are disclosed.
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 101/38 - Composés organiques contenant de l'azote
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
30.
ASYMMETRIC POLARITY REVERSAL FOR AN ELECTROLYTIC - CATION EXCHANGE MODULE (E-CEM) PROCESS
An electrochemical system includes a first electrode disposed in a first electrode compartment, a second electrode disposed in a second electrode compartment, a center compartment disposed between and separated from the first electrode compartment and the second electrode compartment by cation exchange membranes, an electrical power source electrically coupled to the first electrode and to the second electrode, and a control system configured to perform repeating cycles of causing the electrical power source to apply a positive voltage to the first electrode and a negative voltage to the second electrode for a first amount of time, reverse polarities of the voltages applied to the electrodes after the first amount of time, and maintain the reversed polarities for a second amount of time, the second amount of time being different from the first amount of time.
C25B 15/02 - Commande ou régulation des opérations
C25B 9/01 - Configuration ou forme des cellules électrolytiques
C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 11/063 - Métal valve, c.-à-d. dont l’oxyde est semi-conducteur, p. ex. titane
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
B64D 37/32 - Mesures de sécurité non prévues ailleurs, p. ex. contre les explosions
B65D 90/22 - Caractéristiques relatives à la sécurité
B65D 90/48 - Aménagements des dispositifs indicateurs ou de mesure
C10G 5/06 - Récupération de mélanges liquides d'hydrocarbures à partir de gaz, p. ex. gaz naturel par refroidissement ou compression
C10G 31/06 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par chauffage, refroidissement ou traitement par la pression
C12M 1/34 - Mesure ou test par des moyens de mesure ou de détection des conditions du milieu, p. ex. par des compteurs de colonies
33.
SYSTEM AND METHOD FOR VAPOR SPACE MONITORING AND CONTROL
A method and system for vapor space monitoring and control, the method including monitoring a concentration of oxygen in a vapor space of a closed vessel, and halting operation of mechanical equipment in the closed vessel responsive to the concentration of oxygen being above a predetermined limit below a limiting oxygen concentration for a combustible gas within the vapor space.
B65D 90/22 - Caractéristiques relatives à la sécurité
B65D 90/48 - Aménagements des dispositifs indicateurs ou de mesure
C10G 5/06 - Récupération de mélanges liquides d'hydrocarbures à partir de gaz, p. ex. gaz naturel par refroidissement ou compression
C10G 31/06 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par chauffage, refroidissement ou traitement par la pression
B64D 37/32 - Mesures de sécurité non prévues ailleurs, p. ex. contre les explosions
C12M 1/34 - Mesure ou test par des moyens de mesure ou de détection des conditions du milieu, p. ex. par des compteurs de colonies
34.
TRAILER CAPABLE OF TREATING PFAS-CONTAMINATED WATER WITH GAC AND/OR RESIN MEDIA
Methods for facilitating the treatment of potable water containing PFAS are disclosed. A water treatment system involving a plurality of vessels including granular activated carbon or ion exchange resin may be configured. The water treatment system may be arranged on a mobile platform, and the mobile platform may be positioned near a source of the potable water containing PFAS.
Medical water purification system comprised of reverse osmosis units and electrodeionization units for use in connection with medical dialysis; Medical water purification system using heat sanitization comprised of reverse osmosis units and electrodeionization units for use in connection with medical dialysis; Medical water purification system comprised of reverse osmosis units and electrodeionization units connected to a water distribution line for use in connection with medical dialysis; Medical water purification system using heat sanitization comprised of reverse osmosis units and electrodeionization units connected to a water distribution line for use in connection with medical dialysis
Systems and methods for treating water containing PFAS are disclosed. Adsorption media may be used to remove PFAS from water. An eluent may release PFAS from loaded adsorption media to form a waste stream. An internal combustion engine may be used to mineralize PFAS in the waste stream.
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
B01D 15/42 - Adsorption sélective, p. ex. chromatographie caractérisée par le mode de développement, p. ex. par déplacement ou par élution
B01D 53/94 - Épuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone libreCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
A method of treating biomass and ammonia-containing wastewater comprises anaerobically digesting the wastewater to produce a digestate, oxidizing dissolved sulfides in the digestate, mixing the digestate to form a mixed liquid, filtering the mixed liquid to produce a first filtrate, removing ammonia from the first filtrate to produce an ammonia-depleted filtrate, removing organic contaminants and divalent ions from the ammonia-depleted filtrate by nanofiltration to produce an organic-containing second retentate and an organic-depleted second filtrate, removing additional organic contaminants from the organic-containing second retentate by a second nanofiltration operation to produce a third filtrate and a third retentate, removing inorganic ionic species from the organic-depleted second filtrate by reverse osmosis to produce a fourth filtrate and a fourth retentate, combining the third filtrate and the fourth retentate, and removing additional inorganic ionic species from the combined third filtrate and fourth retentate by a second reverse osmosis operation.
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 11/04 - Traitement anaérobieProduction du méthane par de tels procédés
C02F 11/06 - Traitement des boues d'égoutDispositifs à cet effet par oxydation
C02F 11/127 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique par centrifugation
C02F 11/148 - Utilisation combinée de substances inorganiques et organiques additionnées lors de la même étape de traitement
C02F 101/16 - Composés de l'azote, p. ex. ammoniac
C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
39.
PROCESSES TO REMOVE CARBON NANOTUBES AND N-METHYL-2-PYRROLIDONE (NMP) FROM WATER
A method of treating wastewater containing carbon nanotubes and N-Methyl-2-pyrrolidone (NMP) comprises introducing one or more settling agents into the wastewater to promote settling of solids from the wastewater and form a dosed wastewater, separating the dosed wastewater into a sludge having an increased concentration of carbon nanotubes as compared to the dosed wastewater and a supernatant having a reduced concentration of carbon nanotubes as compared to the dosed wastewater, separating the supernatant into a filtrate and a retentate, the retentate having a higher concentration of solids than the filtrate, and separating the filtrate into a product water having a lower concentration of NMP than the filtrate and a reject having a higher concentration of NMP than the filtrate.
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 11/122 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique à l’aide de filtres-presses
40.
USE OF MESH ELECTRODES IN ELECTROLYTIC - CATION EXCHANGE MODULES
An electrochemical system includes first and second endplates and a plurality of electrochemical units disposed between the first and second endplates. Each of the plurality of electrochemical units includes a porous anode disposed in an anode compartment, a porous cathode disposed in a cathode compartment, and a center compartment disposed between and separated from the anode compartment and the cathode compartment by cation exchange membranes.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Control systems for management and control of water treatment and air treatment systems in industrial water, municipal water, non-domestic aquatics, and commercial water applications comprised primarily of a control module and embedded operating software
42.
USE OF MESH ELECTRODES IN ELECTROLYTIC - CATION EXCHANGE MODULES
An electrochemical system includes first and second endplates and a plurality of electrochemical units disposed between the first and second endplates. Each of the plurality of electrochemical units includes a porous anode disposed in an anode compartment, a porous cathode disposed in a cathode compartment, and a center compartment disposed between and separated from the anode compartment and the cathode compartment by cation exchange membranes.
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
C07C 1/12 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir d'oxydes de carbone à partir d'anhydride carbonique avec de l'hydrogène
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/21 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes avec plusieurs diaphragmes
C25B 9/75 - Assemblages comprenant plusieurs cellules du type filtre-presse avec une électrode bipolaire
C25B 9/77 - Assemblages comprenant plusieurs cellules du type filtre-presse avec diaphragmes
C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
C25B 11/063 - Métal valve, c.-à-d. dont l’oxyde est semi-conducteur, p. ex. titane
C25B 11/075 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’un seul élément catalytique ou composé catalytique
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Odor control chemicals, namely, nitrite and other proprietary chemicals used for water and wastewater treatment;
(2) Chemical dosing system, namely, chemical dispenser for dosing nitrite and other proprietary chemicals for odor control in water and wastewater treatment;
44.
Regulation of Onsite Peroxide Generation for Improved Peroxone Advanced Oxidative Process Control
Systems for treating water are disclosed. The system includes an ozonation subsystem including a source of ozone configured to dissolve ozone into water from a source of water to produce ozonated water. The system further includes an electrochemical cell co-located with the ozonation subsystem having an inlet connectable to a source of electrolyte and an outlet. The electrochemical cell is configured to produce hydrogen peroxide from electrolyte from the source of electrolyte. The system additionally includes a mixing zone configured to receive the ozonated water, to receive the hydrogen peroxide from the outlet of the electrochemical cell, and to mix the ozonated water and hydrogen peroxide to form peroxone. Systems and methods of treating water, such as by selectively removing one or more emergent compounds from contaminated water, using the system are also disclosed.
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/78 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen d'ozone
C02F 101/34 - Composés organiques contenant de l'oxygène
45.
PFAS REMOVAL AND DESTRUCTION USING BIOREACTORS FOLLOWED BY SUPERCRITICAL WATER OXIDATION
Systems and methods for treating water containing PFAS are disclosed. A bioreactor and a supercritical water oxidation (SCWO) system may be implemented to provide a complete chain of separation and destruction of PFAS to treat contaminated water. Adsorption media may be added to facilitate the removal of PFAS from water.
Methods of treating contaminated water having organic contaminants and metal species are disclosed. The methods include coagulating the organic contaminant and the metal species to produce solids, separating the solids, and electrochemically treating the water. Methods including directing the contaminated water to an electrocoagulation cell, a solids-liquid separator, and an electrooxidation cell are also disclosed. Systems for recovering metals from battery processing water are also disclosed. The systems include an electrocoagulation cell, a solids-liquid separator, and an electrooxidation cell.
A method of treating wastewater comprises performing biological treatment of the wastewater to generate a sludge, adding a ballasting agent to the sludge to form a ballasted sludge, and performing solid-liquid separation of a first portion of the ballasted sludge using a dissolved air flotation process to form a solids-rich concentrated sludge and a solids-lean effluent.
C02F 11/121 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique
C02F 11/143 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances inorganiques
Systems and methods for treating activated carbon used in treatment of water and wastewater containing PFAS are disclosed. A vapor phase granular activated carbon (GAC) column or an internal combustion engine may be fluidly connected downstream of a thermal oxidation process to polish a vapor phase effluent associated with reactivation.
Disclosed are a system and method for the generation of hydrogen from a source of liquid comprising water. The system comprises a high fluid velocity electrolyzer comprising an inlet and an outlet, the inlet of the high fluid velocity electrolyzer fluidly connected to the source of liquid, and a gas fractionation system fluidly connected to the outlet of the high fluid velocity electrolyzer.
A conditioning system for a filter module is disclosed. The conditioning system may generally include an inlet, a heat exchanger, a magnetically levitated pump, a channel provided to bypass the heat exchanger, a controller, an outlet, and a base. The system may have components lined with corrosion-resistant materials. A method of conditioning a filter module is also disclosed. The method may generally include measuring TOC in a source of ultrapure water, heating the ultrapure water, rinsing a filter module with the heated water, flushing the filter module with ambient temperature water, and repeating the rinsing with heated water and flushing with ambient temperature water. A method of facilitating conditioning of the filter module is also disclosed. The method may generally include providing a portable filter module conditioning system and providing instructions for installation or use.
B01D 65/02 - Nettoyage ou stérilisation de membranes
F28F 19/02 - Prévention de la formation de dépôts ou de la corrosion, p. ex. en utilisant des filtres en utilisant des revêtements, p. ex. des revêtements vitreux ou émaillés
G01N 15/06 - Recherche de la concentration des suspensions de particules
C02F 103/04 - Eau non contaminée, p. ex. pour l'alimentation industrielle en eau pour obtenir de l'eau pure ou ultra-pure
53.
Modified Activated Carbon and Methods of Using Same
Modified activated carbon is disclosed for use in water treatment. In at least some embodiments, activated carbon may be treated with a positively-charged surfactant, i.e. a quaternary ammonium-based surfactant, to promote the removal of poly- and perfluoroalkyl substances from water.
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone libreCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
A system for the treatment of phosphate-containing wastewater comprises a pretreatment subsystem including a mixing chamber configured to mix a potassium-based salt with the wastewater to precipitate K2SiF6 from the wastewater, a solids-liquid separator to separate the precipitated K2SiF6 from the wastewater and form a pretreated wastewater, and a mixing chamber to dilute the pretreated wastewater with raw wastewater, and a filtration subsystem including a first filtration configured to receive the pretreated wastewater and remove particles to form a first effluent, a second filtration unit remove divalent ions from the first effluent and form a second effluent, and a third filtration unit configured to remove additional dissolved solids from the second effluent and form a third effluent suitable for discharge to the environment.
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
55.
PFAS DESTRUCTION USING PLASMA AT THE AIR-WATER INTERFACE CREATED BY SMALL GAS BUBBLES
Systems and methods for treating water containing PFAS are disclosed. Plasma activated excited gas is encapsulated with nanobubbles in water comprising PFAS to be treated. Liquid-phase reaction of the PFAS with the encapsulated plasma activated excited gas at the air-water interface of the nanobubbles is promoted. The PFAS can be concentrated upstream of the plasma reactor. A foam fractionation process may be used in conjunction with the plasma reactor to facilitate PFAS removal.
An electrochlorination system comprises a source of feed fluid, a product fluid outlet, and a plurality of electrochemical cells connected fluidically between the source of feed fluid and the product fluid outlet. The system is configured to operate at least one of the plurality of electrochemical cells at one of a first current density or a first flow rate, and to operate another of the plurality of electrochemical cells at a second current density or second flow rate different from the respective first current density or first flow rate.
C02F 1/46 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
57.
REMOVAL AND DESTRUCTION OF PERFLUOROALKYL AND POLYFLUOROALKYL SUBSTANCES FROM CONTAMINATED WATER
Systems and methods for recovering ammonia from an aqueous solution are disclosed. The systems include a plurality of modules arranged in series, each module having a plurality of membranes, each membrane having a lumen side and a shell side. The plurality of modules include a lead module having a shell inlet fluidly connected to a source of the aqueous solution, an end module having a lumen inlet fluidly connected to a source of an acidic solution, and an optional intermediate module positioned between the lead module and the end module. The methods include directing the aqueous solution to the lead module and directing the acidic solution to the end module to produce an effluent and a product containing ammonium.
A method of separating perfluoroalky l and/or polyfluoroalkyl substances (PFAS) from water contaminated with at least one perfluoroalkyl and/or polyfluoroalkyl substance and containing dissolved solids. At least one non-polar solvent and/or polar aprotic solvent is added and mixed into the contaminated water to form a solvent/water solution. The water is separated from the solvent/water solution. The at least one perfluoroalkyl and/or polyfluoroalkyl substance migrates to the at least one non-polar solvent and/or polar aprotic solvent and the dissolved solids crystallize during mixing of the solvent/water solution and/or separation of the water. The precipitated solids are separated from the at least one non-polar solvent and/or polar aprotic solvent containing the at least one perfluoroalkyl and/or polyfluoroalkyl substance. Also, further subjecting the at least one non-polar organic solvent and/or polar aprotic organic solvent containing the at least one perfluoroalkyl and/or polyfluoroalkyl substance to supercritical water oxidation (SCWO).
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
An apparatus for diffusing wastewater into a clarifier is disclosed. The apparatus has a rotationally symmetric hollow body having a plurality of flow distributors positioned about a perimeter of the rotationally symmetric hollow body and a baffle extending around a bottom end portion of the rotationally symmetric hollow body. The apparatus is dimensioned to fit within an influent well of the clarifier and be connectable to the clarifier on a top end portion of the rotationally symmetric hollow body. A wastewater treatment system including a clarifier and the apparatus is disclosed. A method of retrofitting a circular clarifier by providing the apparatus is also disclosed.
A method of treating water in a water treatment system comprises introducing water to be treated into the water treatment system to produce a defined quantity of treated water having a defined quality metrics, receiving data indicative of one or more operating parameters of one or more unit operations of the water treatment system, determining a probability that the water treatment system will be able to produce and maintain production of treated water meeting the defined quality and the defined quantity metrics based on the received data, generating a risk assessment score based on the probability, and displaying the risk assessment score to a user.
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
64.
PORTABLE MULTIMODE REVERSE OSMOSIS WATER PURIFICATION
A water purification system is disclosed which, includes a reverse osmosis (RO) system or component that is connectable to a city or other outside water feed that is capable of responding to and compensating for low or no feed water pressure coming into the RO system to ensure the outgoing supply of purified water is provided consistently and at a minimum water pressure. This can be accomplished without the need for communication with another device or system-wide facility, such as a hospital, or a pharmaceutical or semiconductor manufacturing system, requiring a constant water supply.
A method for removing one or more azoles from wastewater of a semiconductor production facility includes obtaining copper from the wastewater and introducing an oxidizer into the wastewater to produce hydroxyl radicals from the oxidizer to react with the one or more azoles, wherein the copper catalyzes the production of the hydroxyl radicals from the oxidizer.
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
66.
COMBINED SLURRY COPPER WASTE AND CONCENTRATED COPPER WASTE FOR THE TREATMENT OF AZOLES, METALS, AND SILICA SOLIDS IN WASTEWATER
C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
67.
COMBINED SLURRY COPPER WASTE AND CONCENTRATED COPPER WASTE FOR THE TREATMENT OF AZOLES, METALS, AND SILICA SOLIDS IN WASTEWATER
A method for removing organic compounds from a copper-containing solution includes producing the copper-containing solution from a mixture of wastewater from a copper chemical mechanical polishing (CMP) operation of a semiconductor manufacturing facility and a concentrated copper waste stream (CCW) from the semiconductor manufacturing facility, and introducing an oxidizer into the copper-containing solution, the copper catalyzing production of hydroxyl radicals from the oxidizer that react with the organic compounds.
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
B01D 61/50 - Empilements du type à plaque et cadre
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
Systems for water treatment are disclosed. The systems include a housing, at least one endblock dimensioned to be positioned within the housing, and a gasket having a face and a lip extending from the face, the face dimensioned to be positioned between the endblock and an active area of the water treatment, and the lip dimensioned to be positioned over an outer edge of the endblock adjacent to the housing to form a seal. The system also includes an o- ring dimensioned to be positioned between the lop and an internal side of the housing. The gasket and o-ring are rated in operation to withstand a static pressure of at least up to 100 psi.
B01D 61/50 - Empilements du type à plaque et cadre
B01D 65/00 - Accessoires ou opérations auxiliaires, en général, pour les procédés ou les appareils de séparation utilisant des membranes semi-perméables
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
70.
HIGH FLUID VELOCITY CELL DESIGN FOR THE ELECTROCHEMICAL GENERATION OF HYDROGEN AND CARBON DIOXIDE
Apparatuses for the generation of carbon dioxide and hydrogen from a water having a carbonate species are disclosed. The apparatus includes an anodic compartment having an anode disposed on a first side of the anodic compartment and a cathodic compartment having a cathode disposed on a first side of the cathodic compartment. The apparatus further includes a first cation permeable fluidic separator disposed on a second side of the anodic compartment and a second cation permeable fluidic separator disposed on a second side of the cationic compartment. A center compartment is defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator. The apparatus further includes a flow control system configured to independently control flow of water through each of the anodic compartment, the cathodic compartment, and the center compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/21 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes avec plusieurs diaphragmes
A settling basin of a wastewater treatment system, the settling basin comprises a collector chain for driving a plurality of flights through the settling basin, the collector chain including chain links comprising a plurality of side bars including a plurality of inner pairs of side bars and a plurality of outer pairs of side bars, and connecting pins configured to join the plurality of side bars, each connecting pin including a first end and a second end on an opposite end of the connecting pin from the first end, and flanged rollers disposed on the connecting pins between the first ends and second ends.
Systems for water desalination are disclosed. The systems include a source of non-potable water, a low pressure nanofiltration device, a first electrodialysis unit, a second electrodialysis unit, and recycle conduits. Methods of water desalination including directing non-potable water to a low pressure nanofiltration device, a first electrodialysis unit, and a second electrodialysis unit are also disclosed. Methods of facilitating water desalination by providing a water desalination system are also disclosed.
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
74.
SYSTEM AND METHOD FOR TREATMENT AND REUSE OF RENEWABLE ENERGY PRODUCTION WASTEWATER
A method of treating wastewater from a renewable fuel production comprises anaerobically digesting the wastewater to produce digestate and sludge, aerobically treating the digestate to produce an effluent and a second sludge, separating the effluent into a first filtrate and a first reject, treating the sludge, second sludge, and first reject in a solids-liquid separation apparatus to produce recovered water, directing the recovered water into the mixing tank, filtering the first filtrate in a nanofiltration unit to produce a second filtrate and a second reject, filtering the second filtrate in a first reverse osmosis unit to produce a third filtrate and a third reject, filtering the third reject in a second reverse osmosis unit to produce a fourth filtrate and a fourth reject, combining the third filtrate and fourth filtrate to form a product water, and combining the second reject and the fourth reject into a combined reject for disposal.
A method of retrofitting a filter plate including a filtration zone and a frame surrounding the filtration zone for use in a filter press. The frame of the filter plate is altered to removably receive a filtrate cartridge, the filtrate cartridge constructed and arranged to facilitate flow out of a filtration chamber of the filter press associated with the filtration zone to a discharge port. The filtrate cartridge is inserted in the frame. Related filter plates and filter presses are also disclosed.
Methods of treating water containing PFAS are disclosed. The methods include dosing water containing PFAS with a removal material, e.g., adsorption media, to promote loading of the removal material, e.g., adsorption media, with PFAS. The methods include producing a slurry stream including the PFAS-loaded removal material. e.g., adsorption media. The methods include subjecting the slurry stream to a supercritical water oxidation (SCWO) process. The SCWO process is driven at least in part by a predetermined calorific value of the removal material, e.g., adsorption media. Systems for treating water containing PFAS are also disclosed. Systems include a contact reactor containing removal material. e.g., adsorption media; a source of water comprising PFAS fluidly connected to an inlet of the contact reactor; a separation system fluidly connected downstream of the contact reactor; and SCWO reactor fluidly connected downstream of the separation system.
Systems for treating water containing PFAS are disclosed. Systems include a PFAS separation stage including a vessel and an ion exchange resin having an affinity for PFAS positioned within the vessel. Systems further include an ion exchange resin regeneration stage with a source of an ion exchange resin regeneration solution including a surfactant. The ion exchange resin regeneration stage is configured to dose spent ion exchange resin with a volume of the ion exchange resin regeneration solution to remove PFAS from the spent ion exchange resin and regenerate the ion exchange resin. Methods of treating water including PFAS with regeneration of a spent ion exchange resin are disclosed. Methods of facilitating regeneration of a spent ion exchange resin are also disclosed.
B01J 49/57 - Régénération ou réactivation des échangeurs d'ionsAppareillage à cet effet caractérisés par les réactifs de régénération pour échangeurs anioniques
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 101/36 - Composés organiques contenant des atomes d'halogène
78.
SYSTEMS AND METHODS FOR THE REGENERATION OF ION EXCHANGE RESINS
Systems for treating water containing PFAS are disclosed. Systems include a PFAS separation stage including a vessel and an ion exchange resin having an affinity for PFAS positioned within the vessel. Systems further include an ion exchange resin regeneration stage with a source of an ion exchange resin regeneration solution including a surfactant. The ion exchange resin regeneration stage is configured to dose spent ion exchange resin with a volume of the ion exchange resin regeneration solution to remove PFAS from the spent ion exchange resin and regenerate the ion exchange resin. Methods of treating water including PFAS with regeneration of a spent ion exchange resin are disclosed. Methods of facilitating regeneration of a spent ion exchange resin are also disclosed.
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
B01J 49/00 - Régénération ou réactivation des échangeurs d'ionsAppareillage à cet effet
B01J 49/57 - Régénération ou réactivation des échangeurs d'ionsAppareillage à cet effet caractérisés par les réactifs de régénération pour échangeurs anioniques
C02F 101/36 - Composés organiques contenant des atomes d'halogène
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
79.
REDUCTION OF FERROUS IRON FROM AZOLE-TREATED WASTEWATER
A method of removing iron from a wastewater stream including chemical mechanical polishing wastewater from which an azole compound has been previously removed by a Fenton's reaction. The method comprises adding an iron-containing chemical to the wastewater stream to form an iron-dosed wastewater stream, adjusting a pH of the iron-dosed wastewater stream to a pH at which an iron compound precipitates from the iron-dosed wastewater stream, and performing solid/liquid separation on the pH-adjusted iron-dosed wastewater stream to separate the pH-adjusted iron-dosed wastewater stream into a low iron treated water stream and a high iron waste product including the iron compound.
C02F 1/64 - Composés des métaux lourds du fer ou du manganèse
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
Methods of stabilizing virgin ion exchange resin material are provided. The methods include cleansing the virgin ion exchange resin material with a preparation comprising a non-ionic detergent. The methods include cleansing the virgin ion exchange resin material with a preparation comprising an alcohol solvent. The methods include rinsing virgin ion exchange resin material with deoxygenated water, the methods include introducing the cleansed/rinsed virgin ion exchange resin material into a gas impermeable vessel and hermetically sealing the vessel. The methods include introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing a cleansed virgin ion exchange resin material in deoxygenated water is also disclosed.
B01J 49/53 - Régénération ou réactivation des échangeurs d'ionsAppareillage à cet effet caractérisés par les réactifs de régénération pour échangeurs cationiques
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
81.
Treatment of Liquid Streams Containing High Concentrations of Solids Using Ballasted Clarification
A high-solids wastewater treatment system is disclosed. The wastewater treatment system includes a ballasted reactor, a solids-liquid separation subsystem, a pre-treatment subsystem, a ballast feed subsystem, and a ballast recovery subsystem. The high-solids wastewater treatment system can include a reaction tank, a thickener, and a filter press. A method of treating high-solids wastewater is also disclosed. The method includes contacting a wastewater feed with a coagulant or flocculant, thickening the dosed wastewater, treating the effluent with a ballast, settling the treated wastewater, and conveying the ballasted sludge to the wastewater feed, dosed wastewater, or treated wastewater. The wastewater feed may have more than 500 mg/L of total suspended solids. The wastewater feed may contain inorganic solids.
Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from one of brackish water and saline water and methods of operation of same.
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/20 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dégazage, c.-à-d. par libération des gaz dissous
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
A method of treating water in a water treatment system comprises introducing water to be treated into an ion exchange bed of the water treatment system to produce treated water, receiving an output water quality indication from a controller associated with the ion exchange bed, determining, by an algorithm, responsive to the output water quality indication, whether to replace the ion exchange bed based on a remaining capacity of the ion exchange bed, current operational parameters of the water treatment system, and historical data regarding operation of the water treatment system, and responsive to the water quality indication, providing, by the algorithm, a recommendation to a service provider of the water treatment system that there is one of no action required, that the ion exchange bed should be monitored, or that a service order for replacement of the ion exchange bed should be generated.
An apparatus for wasting flocculant sludge from a clarifier is provided including a wasting pipe fluidly connectable to a waste conduit, a manifold fluidly connectable to the wasting pipe, an upper header for collecting the flocculant sludge fluidly connectable to the manifold, a return sludge pipe fluidly connectable to a return sludge well, a lower header for collecting settled sludge fluidly connectable to the return sludge pipe, and a drive mechanism for rotating the upper header and the lower header about a center axis. A wastewater treatment system is provided including the clarifier fluidly connectable to a source of a mixed liquor and the apparatus for wasting flocculant sludge. A method of separating settled sludge from a clarifier is provided including withdrawing flocculant sludge and withdrawing settled sludge. A method of retrofitting a clarifier is also provided including providing the manifold, the upper header, and the drive mechanism.
A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.
F16C 19/16 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec une seule rangée de billes
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
F16C 33/58 - Chemins de roulementBagues de roulement
Systems and methods for treating contaminated water are provided. The systems may include at least three resin adsorbers, wherein a first and second resin adsorber are on-line and a third resin adsorber is selectively off-line from the first and second on-line resin adsorbers, and wherein the at least three resin adsorbers are fluidly couplable to a source of contaminated water containing at least one recalcitrant organic contaminant (e.g., 1, 4-dioxane). At least one heated recirculation tank may be fluidly coupled to an inlet of the third resin adsorber and configured to regenerate the third resin adsorber, and at least one air stripping unit may be fluidly coupled to an outlet of the third resin adsorber, wherein the at least one air stripping unit is configured to remove at least a portion of the at least one recalcitrant organic contaminant from heated water from the third resin adsorber.
B01D 29/60 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants combinés dans une même structure à des dispositifs de commande de la filtration
Methods of monitoring water treatment systems by obtaining measurements of water treatment system parameters and transmitting the measurements to a local controller and cloud-based platform are disclosed. Systems for monitoring water treatment systems are also provided. The systems include at least one sensor positioned to measure a parameter of the water treatment system, a treatment module operably connected to the at least one sensor, and a local controller operably connected to the treatment module and a cloud-based platform. Methods of retrofitting water treatment systems by providing the treatment module and local controller are also disclosed.
H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs
B01D 29/60 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants combinés dans une même structure à des dispositifs de commande de la filtration
A method of treating selenium-containing wastewater comprises performing anoxic biological treatment of the selenium-containing wastewater to produce a first liquid including a residual dissolved selenium species, introducing an oxidant into the first liquid to form an oxidant-treated first liquid, introducing a coagulant into the oxidant-treated first liquid to form a second liquid having selenium-containing solids, and removing the selenium-containing solids from the second liquid in a solids-liquid separation operation.
A method of operating a sequencing batch reactor process includes introducing wastewater to be treated into the sequencing batch reactor, and selectively removing a portion of biological flocs from the wastewater in the sequencing batch reactor that settles at a slower rate than another portion of biological flocs in the sequencing batch reactor.
A method of operating a sequencing batch reactor process includes introducing wastewater to be treated into the sequencing batch reactor and subjecting the wastewater to treatment in the sequencing batch reactor in an aerated anoxic mode in in which a quantity of oxygen is supplied at a level insufficient to meet a biological oxygen demand of the wastewater, but sufficient to cause simultaneous nitrification and denitrification reactions to occur in the wastewater.
An electrochemical separation device includes a first electrode, a second electrode, and a cell stack including a plurality of sub-blocks each having alternating depleting compartments and concentrating compartments and each including frame and channel portions disposed between the first electrode and the second electrode. An internal seal formed of a first material is disposed between and in contact with the channel portions between adjacent sub-blocks in the cell stack and configured to prevent leakage between depleting compartments and concentrating compartments in the adjacent sub-blocks. An external seal formed of a second material having at least one material parameter different from the first material is disposed between and in contact with the frames of the adjacent sub-blocks in the cell stack and configured to prevent leakage from an internal volume of the electrochemical separation device to outside of the electrochemical separation device.
B01D 65/00 - Accessoires ou opérations auxiliaires, en général, pour les procédés ou les appareils de séparation utilisant des membranes semi-perméables
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
97.
Pulsed power supply for sustainable redox agent supply for hydrogen abatement during electrochemical hypochlorite generation
A method of operating an electrochemical cell including introducing an aqueous solution into the electrochemical cell, applying a current across an anode and a cathode to produce a product, monitoring the voltage, dissolved hydrogen, or a condition of the aqueous solution, and applying the current in a pulsed waveform responsive to one of the measured parameters is disclosed. An electrochemical system including an electrochemical cell including an anode and a cathode, a source of an aqueous solution having an outlet fluidly connectable to the electrochemical cell, a sensor for measuring a parameter, and a controller configured to cause the anode and the cathode to apply the current in a pulsed waveform responsive to the parameter measurement is disclosed. Methods of suppressing accumulation of hydrogen gas within the electrochemical cell are also disclosed. Methods of facilitating operation of an electrochemical cell are also disclosed.
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
C25B 9/17 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure
C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
C25B 15/02 - Commande ou régulation des opérations
An electrochemical cell including a first chamber having an anode, a second chamber having a cathode, at least one ionic connection between the first chamber and the second chamber, such that liquid electrolyte from the first chamber is prevented from mixing with liquid electrolyte in the second chamber is provided. The first chamber and the second chamber can be arranged in parallel and positioned remotely from each other. An electrochemical system including the electrochemical cell, and first and second sources of saline aqueous solutions is also provided. Water treatment systems are also provided. A method of operating an electrochemical cell including introducing first and second saline aqueous solutions into first and second chambers of the electrochemical cell, and applying a current across the anode and the cathode to generate first and second products, respectively is also provided. A method of facilitating operation of an electrochemical cell is also provided.
C02F 1/467 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse par désinfection électrochimique
C02F 1/461 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par électrolyse
99.
VERTICAL FLOW QUAD-BED DRY MEDIA SCRUBBER FOR ODOR CONTROL
B01D 29/50 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif
B01D 39/02 - Substance filtrante non agglomérée, p. ex. fibres
B01D 53/74 - Procédés généraux pour l'épuration des gaz résiduairesAppareils ou dispositifs spécialement adaptés à ces procédés
100.
VERTICAL FLOW QUAD-BED DRY MEDIA SCRUBBER FOR ODOR CONTROL
A vertical flow dry media scrubber comprises four vertically aligned dry media beds and air plenums alternately disposed above and below each of the four vertically aligned dry media beds. The plurality of air plenums include contaminated air plenums including contaminated air inlets positioned in the walls of a lowermost one of the contaminated air plenums and an uppermost one of the contaminated air plenums, respectively, and treated air plenums including treated air outlets positioned in the walls of a lowermost one of the treated air plenums, an uppermost one of the treated air plenums, and a centrally located one of the treated air plenums, respectively, the treated air plenums disposed on vertically opposite sides of one of the contaminated air plenums, the contaminated air plenums disposed on vertically opposite sides of one of the treated air plenums.
B01D 29/50 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants à plusieurs éléments filtrants caractérisés par leur agencement relatif
B01D 39/02 - Substance filtrante non agglomérée, p. ex. fibres
B01D 53/74 - Procédés généraux pour l'épuration des gaz résiduairesAppareils ou dispositifs spécialement adaptés à ces procédés
B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
B01D 24/00 - Filtres à substance filtrante non agglomérée, c.-à-d. à substance filtrante sans aucun liant entre les particules ou les fibres individuelles qui la composent
