Abrégé

The present application relates to an integrated system for regenerating sodium bicarbonate and recovering ammonia, and an integrated method for regenerating sodium bicarbonate and recovering ammonia by using same. According to the integrated system for regenerating sodium bicarbonate and recovering ammonia, and the integrated method for regenerating sodium bicarbonate and recovering ammonia by using same, of the present application, sodium bicarbonate can be regenerated and ammonia can be recovered from ammonium sulfate wastewater, generated during sodium bicarbonate regeneration, so as to be reused as ammonia water, and thus the cost of purchasing ammonia water required for process operation can be reduced, and additional operating revenue can be created through the commercialization of the generated ammonia water.

Classes IPC  ?

• C01D 7/00 - Carbonates de sodium, de potassium ou des métaux alcalins en général
• C01D 7/22 - Purification
• C01C 1/26 - Carbonates ou bicarbonates d'ammonium
• C01C 1/02 - Préparation ou séparation d'ammoniac
• C01C 1/24 - Sulfates d'ammonium
• B01D 53/14 - 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 par absorption
• B01D 53/50 - Oxydes de soufre
• B01D 19/00 - Dégazage de liquides
• B01D 5/00 - Condensation de vapeursRécupération de solvants volatils par condensation

Abrégé

In corrosion rate measurement equipment according to an atmospheric environment according to the present invention, the length of a conductive pattern for temperature correction of a corrosion sensor is greater than the length of a conductive pattern for corrosion measurement, and the surface area of the conductive pattern for temperature correction of a corrosion sensor is less than the surface area of the conductive pattern for corrosion measurement so that a measured error of reference resistance measured values measured in the conductive pattern for temperature correction is minimized and thus the measured values measured in the conductive pattern for corrosion measurement can be more accurately corrected by using the reference resistance measured value and thus, corrosion rate can be more accurately measured.

Classes IPC  ?

• G01N 17/02 - Systèmes de mesure électro-chimique de l'action due aux intempéries, de la corrosion ou de la protection contre la corrosion
• G01D 21/02 - Mesure de plusieurs variables par des moyens non couverts par une seule autre sous-classe

Abrégé

Disclosed is a neutralization method for neutralizing purified dredged soil, which has been washed with an acid in order to remove contaminants. According to the neutralization method, a solid neutralizer is added to and mixed with the purified dredged soil in order to neutralize the purified dredged soil in a solid state. In addition, according to the neutralization method, in order to neutralize used process water in a liquid state, having been used for acid washing, a liquid neutralizer is added to and mixed with the used process water.

Classes IPC  ?

• B09C 1/08 - Régénération de sols pollués par des procédés chimiques
• C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
• C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension

Abrégé

The present invention relates to an ammonia recovery device and operating method coupled with carbon dioxide degassing. In particular, the present invention relates to a method of extracting methane gas by fermenting organic waste, separating digestive fluid into liquid waste water and ammonia gas through a degassing technique, and treating an organic waste for manufacturing liquid fertilizer through the recovery of the separated ammonia.

Classes IPC  ?

• C05F 9/04 - Compost biologique
• 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 11/04 - Traitement anaérobieProduction du méthane par de tels procédés
• B09B 3/00 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif

Abrégé

The present invention relates to a hybrid CNT-RO membrane pressure vessel. The reverse osmosis separation membrane pressure vessel according to one embodiment of the present invention comprises a seawater inlet, multiple reverse osmosis separation membrane modules, a permeate water flow channel, a permeate water outlet, and a concentrated water outlet, and one or more modules of the multiple reverse osmosis separation membrane modules, which are located at the front end of the pressure vessel, constitute a first module unit, and modules located behind the first module unit constitute a second module unit, and the flux of the respective modules constituting the second module unit may be greater than that of the respective modules constituting the first module unit.

Classes IPC  ?

• B01D 61/08 - Appareils à cet effet
• B01D 61/02 - Osmose inverseHyperfiltration

Abrégé

The present invention relates to a highly-concentrated organic waste water system and waste water treating method using a heating membrane filtration concentrating device. More particularly, the present invention relates to a method which: applies a heating membrane filtration concentrating device to a membrane-coupled anaerobic digestion process; simultaneously increases the water treated by the membrane filtration concentrating device and reduces the amount of energy used to heat an anaerobic digestion tank by producing a concentrated liquid heated in a membrane filtration concentrating process and returning same to the anaerobic digestion tank; ensures stability in a downstream waste water treating process by raising the water temperature of water treated in the membrane filtration concentrating device; and increases the cleaning efficiency of the membrane filtration concentrating device and the service life of the membrane by raising the temperature of washing chemicals during washing of the membrane.

Classes IPC  ?

• C02F 11/04 - Traitement anaérobieProduction du méthane par de tels procédés
• B01D 65/00 - Accessoires ou opérations auxiliaires, en général, pour les procédés ou les appareils de séparation utilisant des membranes semi-perméables
• B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p. ex. dialyse, osmose ou ultrafiltrationAppareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet

Abrégé

The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

Classes IPC  ?

• B09C 1/00 - Régénération de sols pollués
• B02C 21/00 - Installations de désagrégation avec ou sans séchage des matériaux
• B02C 23/14 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen de plusieurs séparateurs
• B02C 19/06 - Appareils utilisant un courant de fluides
• B02C 23/08 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation
• B07B 4/02 - Séparation des solides, obtenue en soumettant leur mélange à des courants de gaz pendant que le mélange tombe

Abrégé

A device for refining biogas according to the present invention controls the operation of an adsorption module according to the methane concentration of biogas, which flows into a blower, and recovers and recirculates generated biomethane, when the methane concentration is below a threshold, thereby further improving the quality of finally produced biomethane. In addition, operation of a cooler is controlled according to the temperature of biogas, which flows into the blower, thereby preventing degradation of refinement performance due to a change of the atmospheric temperature or the temperature of the biogas. As a result, the refinement performance is improved, thereby increasing the amount of produced biomethane and further improving the quality of biomethane. In addition, biomethane is recovered and recirculated according to the methane concentration of the produced biomethane, thereby improving the recovery ratio of biomethane. In addition, the methane concentration of residual gas or purge gas, which is discharged from the adsorption module into the atmosphere and discarded, is measured to recover and recirculate the residual gas or purge gas according to the methane concentration, thereby maximizing the methane recovery ratio.

Classes IPC  ?

• B01D 53/047 - Adsorption à pression alternée
• B01D 53/04 - 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 par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
• C07C 7/12 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par adsorption, c.-à-d. purification ou séparation d'hydrocarbures à l'aide de solides, p. ex. à l'aide d'échangeurs d'ions

Abrégé

The present invention relates to a system for remediating highly contaminated fine soil using multiple micro hydrocyclones that includes: a mill adapted to mix contaminated soil with water and to individualize the soil; a screen adapted to separate the soil introduced from the mill into soil having given particle sizes; a separator adapted to finely separate the soil having particle sizes of less than a given value by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the finely separated soil introduced from the separator by particle size by means of process water for washing; and a filtering unit adapted to separately discharge the soil washed and introduced through the remediating unit and the process water for washing contained in the soil.

Classes IPC  ?

• B09C 1/02 - Extraction au moyen de liquides, p. ex. lavage, lixiviation
• B07B 7/086 - Séparation sélective des matériaux solides portés par des courants de gaz, ou dispersés dans ceux-ci utilisant la force centrifuge produite par le déplacement du courant de gaz
• B04C 9/00 - Combinaisons avec d'autres dispositifs, p. ex. avec des ventilateurs
• B07B 13/04 - Classement ou triage des matériaux solides par voie sèche non prévu ailleursTriage autrement que par des dispositifs commandés indirectement selon la taille

Abrégé

The present invention relates to a system and method for remediating contaminated soil through separation and process of highly contaminated coarse soil, the system including: a screen adapted to separate the contaminated soil introduced into soil having given particle sizes; multiple hydrocyclones adapted to re-separate the soil having particle sizes of more than the given values by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the soil separated through the multiple hydrocyclones by particle size; and a filtering unit adapted to separate water from the soil washed through the remediating unit.

Classes IPC  ?

• B09C 1/02 - Extraction au moyen de liquides, p. ex. lavage, lixiviation
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• B07B 13/04 - Classement ou triage des matériaux solides par voie sèche non prévu ailleursTriage autrement que par des dispositifs commandés indirectement selon la taille
• B07B 1/04 - Tamis plats fixes
• C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
• B07B 1/40 - Tamis à vibration par résonance
• C02F 101/10 - Composés inorganiques
• C02F 101/20 - Métaux lourds ou leurs composés

Abrégé

The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

Classes IPC  ?

• B02C 19/06 - Appareils utilisant un courant de fluides
• B07B 13/04 - Classement ou triage des matériaux solides par voie sèche non prévu ailleursTriage autrement que par des dispositifs commandés indirectement selon la taille
• B09C 1/00 - Régénération de sols pollués

Abrégé

The present invention relates to a system for remediating highly contaminated fine soilusing multiple micro hydrocyclones that includes: a mill adapted to mix contaminated soil with water and to individualizethe soil; a screen adapted to separate the soil introduced from the mill into soil having given particle sizes; a separator adapted to finely separate the soil having particle sizes of less than a given value by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the finely separated soil introduced from the separator by particle size by means of process water for washing; and a filtering unit adapted to separately discharge the soil washed and introduced through the remediating unit and the process water for washing contained in the soil.

Classes IPC  ?

• B09C 1/02 - Extraction au moyen de liquides, p. ex. lavage, lixiviation
• B04C 5/00 - Appareils dans lesquels la direction axiale du tourbillon est inversée
• B03B 9/00 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire
• B07B 13/04 - Classement ou triage des matériaux solides par voie sèche non prévu ailleursTriage autrement que par des dispositifs commandés indirectement selon la taille

Abrégé

The present invention relates to a tunnel reinforcement structure capable of controlling ground displacement using pressurization, including: reinforcements adapted to be forcedly inserted into the bored holes formed along the outer surface of the section to be excavated of the tunnel; auxiliary reinforcements disposed between the reinforcements from a point between 4 m and 8 m inwardly from the ends of the reinforcements; steel ribs disposed on the inner four faces of the excavation face of the tunnel; pressurizing bags each provided between the steel ribs and the excavated inner surface of the tunnel; a concrete part adapted to be cast between the steel ribs; and lining concrete adapted to be cast to the steel ribs and the inner surface of the concrete part.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• E21D 9/04 - Creusement de galeries en terrain de faible consistanceDispositifs à cet effet non prévus ailleurs
• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet

Abrégé

The present invention relates to a system and method for remediating contaminated soil through separation and process of highly contaminated coarse soil, the system including: a screen adapted to separate the contaminated soil introduced into soil having given particle sizes; multiple hydrocyclones adapted to re-separate the soil having particle sizes of more than the given values by particle size from the soil having the given particlesizes separated through the screen; a remediatingunit adapted to wash the soil separated through the multiple hydrocyclones by particle size; and a filtering unit adapted to separate water from the soil washed through the remediating unit.

Classes IPC  ?

• B09C 1/02 - Extraction au moyen de liquides, p. ex. lavage, lixiviation
• B04C 5/00 - Appareils dans lesquels la direction axiale du tourbillon est inversée
• B03B 9/00 - Disposition générale d'un atelier de séparation, p. ex. schéma opératoire
• B07B 13/04 - Classement ou triage des matériaux solides par voie sèche non prévu ailleursTriage autrement que par des dispositifs commandés indirectement selon la taille

Abrégé

The present invention relates to an apparatus and method for treating organic waste. The apparatus for treating organic waste comprises an acid fermenter, a methane fermenter, a cushion chamber and a separator membrane device, vortex flow generating means having a plurality of nozzles installed in the methane fermenter to enable anaerobically digested water in the methane fermenter to be stirred by a vortex flow, a gas holder installed in the cushion chamber to compensate for the negative pressure generated when the digested water contained in the cushion chamber is discharged, and means for switching the injection direction of the digested water being supplied to the separator membrane device. According to the present invention, the performance of stirring the organic waste is maximized by the vortex flow generated from an existing stirrer and nozzles, the digested water is smoothly discharged from the cushion chamber, contamination of a tubular filtration membrane is remarkably delayed, the life of the filtration membrane is elongated and costs for replacing filtration members are minimized.

Classes IPC  ?

• C02F 3/28 - Procédés de digestion anaérobies
• C02F 11/04 - Traitement anaérobieProduction du méthane par de tels procédés

Abrégé

The present invention relates to a tunnel reinforcement structure capable of controlling ground displacement using pressurization, including: reinforcements adapted to be forcedly inserted into the bored holes formed along the outer surface of the section to be excavated of the tunnel; auxiliary reinforcements disposed between the reinforcements from a point between 4 m and 8 m inwardly from the ends of the reinforcements; steel ribs disposed on the inner four faces of the excavation face of the tunnel; pressurizing bags each provided between the steel ribs and the excavated inner surface of the tunnel; a concrete part adapted to be cast between the steel ribs; and lining concrete adapted to be cast to the steel ribs and the inner surface of the concrete part.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage

Abrégé

The present invention provides a method for controlling a heat recovery ventilation system having an outdoor air cooling function. According to the outdoor air cooling function, a heat exchange mode and an outdoor cooling mode are selectively operated. In the heat exchange mode, air introduced into a room and air discharged to the outside are heat exchanged by a heat-exchange section and then the introduced air is supplied to the room. In the outdoor air cooling mode, outdoor air bypasses the heat exchange section via an outdoor air cooling path in the case that heat exchange is not necessary, so that the air is directly introduced into the room. According to the present invention, the method for controlling a heat recovery ventilation system having an outdoor air cooling function and a ventilation device have the effects as follows. First, it is possible to save energy by selectively operating the ventilation system only when room air pollution is generated according to information on the level of room air pollution, or when direct outdoor introduction is favorable in terms of energy and the environment. Second, the heat exchange mode or the outdoor air cooling mode may be automatically operated by determining a favorable mode in terms of saving energy according to the availability of the outdoor air cooling. Third, it is possible to save energy and maintain a pleasant environment by preventing unnecessary outdoor air cooling by reducing a range set for outdoor air cooling if the level of the room air pollution is below environmental quality standards.

Classes IPC  ?

• F24F 7/08 - Ventilation avec réseau de gaines à circulation d'air forcée, p. ex. par un ventilateur avec conduits séparés pour l'air fourni et l'air expulsé
• F24F 11/02 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F24F 12/00 - Utilisation de systèmes à récupération d'énergie dans le conditionnement de l'air, la ventilation ou la formation d'écrans d'air

Abrégé

The present invention relates to a residual water circulation-type dredging head apparatus, to a dredger comprising same, and to a dredging method using same. More particularly, the present invention relates to a residual water circulation-type dredging head apparatus which circulates the residual water sucked into the dredging head apparatus together with sludge instead of simply discharging the residual water to the outside when dredging the bottom of the river or sea, and injects the residual water into the interior of the dredging head apparatus, to thereby prevent water contamination caused by the illegal discharge of residual water to the outside. The present invention also relates to a dredger comprising the dredging head apparatus, and to a dredging method using the dredging head apparatus.

Classes IPC  ?

• E02F 3/92 - Éléments de creusement, p. ex. crépines d'aspiration
• B08B 3/14 - Enlèvement des déchets, p. ex. des étiquettes, se trouvant dans le liquide de nettoyage
• E02F 3/90 - Éléments constitutifs, p. ex. entraînements, dispositifs de commande

Abrégé

The present invention relates to a dredging monitoring system, and more particularly, to a dredging monitoring system which effectively collects measurement data related to dredging through a real-time monitoring system, systemically databases the collected data, and analyzes the tendency of the measurement data and the correlation between the measurement data, thereby enhancing the efficiency of dredging. The dredging monitoring system, which collects and analyzes measurement data required for a dredging operation so as to control a dredger, includes a measuring instrument that is installed in a delivery pipe so as to measure the physical characteristics of a sediment-water mixture and the flow state of the mixture on a delivery path; a data logger that collects data measured by the measuring instrument; an integrated data collector that measures a current signal output from the data logger so as to integrate the measurement data; a field monitoring server that receives the measurement data collected by the integrated data collector through CDMA (code division multiple access) communication and then stores the data in a database; and an integrated measurement managing server that receives the measurement data stored in the field monitoring server through the Internet. The dredging monitoring system can systemically and integrally manage a variety of measurement data related to dredging through a ubiquitous network. Further, since the dredging monitoring system provides a dredging operation state and a monitoring result to dredging operators in real time, it is possible to respond to an emergency occurring while the dredger is operated.

Classes IPC  ?

• H04Q 9/02 - Dispositions à fonctionnement automatique

Abrégé

Provided is an apparatus for measuring and scanning density inside a dredging pipeline, the apparatus including an internal frame that is installed around a pipeline, through which dredged materials are transferred, and rotates about the pipeline by a unit angle of 90 degrees; an external frame that is connected to the internal frame through a guide rod so as to be rotated by the rotation of the internal frame, moves straightly along the guide rod in one direction, and pivots on the guide rod; a radiation source that is installed in one side of the external frame so as to irradiate radiation toward the pipeline; and a radiation detector that is disposed in the other side of the external frame so as to face the radiation source with the pipeline interposed therebetween, and detects the radiation passing through the pipeline.

Classes IPC  ?

• G01N 23/12 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le matériau étant un fluide ou un solide granulé en écoulement

Abrégé

Provided is an apparatus for measuring differential pressure of a dredging transportation pipeline, the apparatus including one or more measuring units that receive fluids from two arbitrary positions of the dredging transportation pipeline and measure the differential pressure therebetween. Each of the measuring units includes: two fluid supply pipes that diverge from two positions of the dredging transportation pipeline so as to supply the fluid within the dredging transportation pipeline; two transparent pillar pipes that are connected to ends of the respective fluid supply pipes such that the head of the fluids flowing in from the fluid supply pipes can be checked with the naked eyes; a ruler that is disposed between the transparent pillar pipes such that the head indicated through the transparent pillar pipes can be read through the scale thereof; an air pressure supply pipe that is connected to the upper ends of the respective transparent pillar pipes and applies counter air pressure onto the fluids flowing into the transparent pillar pipes so as to reduce the head of the fluids such that the height of the transparent pillar pipes can be reduced; a water supply pipe that is connected to the lower ends of the respective transparent pillar pipes and supplies water to the transparent pillar pipes such that the transparent pillar pipes are saturated; an air pressure supply source that provides air pressure to the air pressure supply pipe; and a water supply source that supplies water to the water supply pipe.

Classes IPC  ?

• G01L 13/04 - Dispositifs ou appareils pour la mesure des différences entre plusieurs valeurs de la pression des fluides en utilisant des flotteurs ou des liquides comme éléments sensibles

Abrégé

In a composite web truss girder that includes an upper flange and a lower flange formed of concrete and a web having a truss structure of a diagonal member formed of steel, a T-type shear connector is used to shear-connect the diagonal member to the upper flange or the lower flange at a panel point, at which the diagonal member and the upper flange or a lower flange are combined, thereby enhancing structural performance of the panel point without using a gusset plate.

Classes IPC  ?

• E04C 3/02 - PoutrellesSolives, fermes ou structures analogues à des fermes, p. ex. préfabriquéesLinteauxTraverses

Abrégé

A composite web truss girder includes an upper flange, a lower flange and a web, in which the upper and lower flanges include concrete, and the web has a truss structure of a diagonal member formed of steel. In forming a connection structure of a panel point at which steel member and the upper and lower flanges are combined, diagonal members are connected with a hinge so that the diagonal members are rotatable, and combined with each other. Then, the diagonal members are buried in the upper or lower flanges, and concrete flows into the diagonal member. Thus, assemblability of the diagonal member and the upper or lower flanges in the field may be enhanced, secure connection structure may be attained, and buckling of the diagonal member may be prevented.

Classes IPC  ?

• E01D 2/00 - Ponts caractérisés par la section transversale de la structure portante de la travée