Abstract: The present invention provides a system for, and method of, performing various liquid-liquid contacting operations such as solvent extraction, stripping, scrubbing, washing, re-extraction and reacting in a single, integrated column. The ability of the integrated column, which is based on the intermediate decanter, of the present invention, to perform the entire operation of solvent extraction plant in a single column has many technical, economical, ecological and operational safety advantages. Investment costs significantly decrease due to the decrease in the number of columns, decanters, and auxiliary equipment, spare parts, materials inventories and the requisite area for the plant relative to a standard prior art plant. Operating and maintenance costs also decrease due to less pumping between columns and less equipment in operation.

Abstract: The invention relates to an apparatus for treating wastewater from catering industry, especially restaurants. Said apparatus comprises a single reactor tank, said reactor tank comprising: an inlet; an outlet; and an oil-tight tank therein an upper oil film zone, an anoxic zone below said oil film zone and an anaerobic zone below said anoxic zone are divided; an upper net and a lower net are respectively located in the anoxic and anaerobic zones; and some plastic suspending media as biocarriers are introduced in the anoxic and anaerobic zones. The apparatus requires minimal space, energy and operation costs.

Abstract: A method is devised to produce a reaction liquid, for example deionized water, containing a high concentration of ozone. The method makes use of a chemical control mechanism and a recycling mechanism to enhance the dissolution of the ozone in the reaction liquid. The chemical control mechanism includes the addition of the chemical radical scavenger to a dissolution system, and the recycling mechanism recycling a portion of the resulting ozone-containing liquid back to the dissolution system, so as to enhance the ozone dissolution to an extent that the ozone concentration reaches a saturation point attainable under thermodynamics of the dissolution system.

Abstract: The present invention involves a purification system for water which utilizes repetitive ozone impregnation of the water to create a higher level of ozone for purification and/or sterilization purposes. The system may utilize a water softener and/or reverse osmosis system to remove minerals from the water supplied by a water supplier such as a municipality. Alternatively, demineralized water may be supplied directly to the system. The system includes a pump which receives the water and pumps the water into an expansion tank. From the expansion tank, the water flows through an ozone impregnation device in which the water receives the ozone. After impregnation, water flows into a holding tank. The pump is also in communication with an external demand source such that if ozone impregnated water is needed, water flows back to the pump and is diverted to the source. If no demand sensed, water flows back to the pump and is recycled so that the water is re-impregnated with ozone.

Abstract: There is disclosed a defoaming rotor capable of skimming foam from the surface of the fermentation broth in a bioreactor, separating the solid and liquid components from the gaseous component of the foam, and returning the solid and liquid components to the broth.

Abstract: An improved steam boiler scale inhibitor, sludge (TSS) and Total Dissolved Solids (TDS) control, and automatic bottom blow-down management system which totally eliminates the use of scale inhibitor chemicals and eliminates manual blow down for sludge control (TSS). The present system is attached by a single hookup to the mud leg or the bottom blow down port of an existing boiler. The system includes a closed-loop duct with inline circulator pump to draw water from the bottom of the boiler drum and return through the same bottom outlet port. The system includes a TDS controller connected to the circulator pump, and to both a “smart” valve and a high temperature probe exposed inside the closed loop duct. The TDS Controller is preprogrammed to time the opening, open duration and closing of the smart valve depending upon the water quality at the site location as sensed by the probe, thereby allowing for the control of TSS and TDS in the drum water.

Abstract: The present invention provides a process and apparatus for autothermal aerobic thermophilic treatment of high strength and high temperature wastes. Waste material is injected into a reactor vessel (12) having thermophilic microorganisms to form a volume of bulk liquid in the reactor vessel (12). An oxygen-containing gas is also injected into the reactor vessel (12) for aerobic treatment of the waste material. The oxidation-reduction potential and temperature of the reactor bulk liquid are monitored and at least a selected one of the rate of injection of the oxygen-containing gas, the oxygen-transfer efficiency of the oxygen-containing gas and the volume of bulk liquid in the reactor (12) are adjusted in response to the oxidation-reduction potential and temperature of the reactor bulk liquid to maintain the temperature of the reactor bulk liquid within a predetermined range.

Abstract: An apparatus and method are provided for preventing or reducing buildup of certain solids in a system or a conduit containing or conveying a fluid. The fluid can be a single phase liquid, such as a liquid hydrocarbon, or a multiphase fluid such as a mixture of several immiscible liquids, for example liquid hydrocarbon and water, plus a gaseous phase that may include hydrocarbon vapors as well as other gases, for example carbon dioxide, hydrogen sulfide, etc. Preferably, the fluid is crude oil. The solids include all solids precipitating from fluids due to thermodynamically or chemical composition driven forces, as well as materials that can change phases. Preferably, the solids are solids typically dissolved in crude oil, such as higher paraffins, asphaltenes, hydrates, organic salts, and inorganic salts.

Abstract: A cost effective apparatus for preparing dialysate solution which can finely adjust the concentration of dialysate solution is described. The apparatus comprises a chamber 2, the inside of which is divided into three compartments 21, 22, 23 by a movable partitions 24, 25, a dissolving solution supply line 1 for supplying dissolving solution to the first compartment 21, a solution tank 5, a dialysate solution preparing line 31 connecting the solution tank 5 and the first compartment 21, a dialysate solution preparing line 32 connecting the solution tank 5 and the third compartment 23, a transporting pump 4 provided in the dialysate solution preparing line 32, a powder supply means 7 provided above the solution tank 5, and a dialysate solution transporting line 6 for transporting the dialysate solution prepared and filled in the third compartment 23 to the point of use, a by-pass line 81, and a circulating line 91.

Abstract: A dialysate preparing apparatus in which concentration of dialysate can be finely adjusted is provided. The dialysate preparing apparatus comprises a chamber 2, the inside of which is divided into four compartments 21, 22, 23, 24 by movable partitions 25, 26, 27; a dissolving solution supply line 1 for supplying dissolving solution to the first compartment 21; a solution tank 5; dialysate preparing lines 31, 32 connecting the solution tank 5 with the first compartment 21 and with the second compartment 22, respectively; a transporting pump 4 provided in the dialysate preparing line 32; a concentration meter N; a powder supply means 7; and dialysate lines 61, 62 connecting the second compartment 22 and the fourth compartment 24 with a dialyzer D, respectively; a circulating line 81; and a waste liquid discharge line 9.

Abstract: A truck houses a closed recirculation system having a series of hoses, filters and pumps interconnecting a first point and second point, preferably hydrants, of a water supply system. A flow of water pumped outside of the water supply system through the filters causes an increased water flow within the section of the water supply system between the second and the first point to clean the section of deposits, sediment, particulates and other undesirable matter. All of the filtered water is returned to the water supply system. The water may be inspected and chlorinated.

Abstract: An apparatus and water treatment method uses Sonically Induced Dissociative Reactions (SIDR) and Multi-bubble Sonoluminescence (MBSL) to facilitate Sonically Bounds State Oxidation (SBSO) within a SIDR chamber. Included within the SIDR chamber is counter-flow ultrasonic radiation and an optional binding agent.

Abstract: Processes and apparatus are disclosed for producing clear reverse osmosis retentates having silica concentrations which are substantially supersaturated in silica from feedwaters having silica concentrations, without substantial formation of alkali-soluble scale having substantial silica content in the associated reverse osmosis apparatus, by adjusting the pH of such feedwaters to an acidic pH range prior to reverse osmosis in accordance with this invention. Also disclosed are related processes and apparatus for periodically removing minor amounts of alkali-soluble scale having substantial silica content from the apparatus.

Abstract: A method and apparatus for retrofitting existing waste water treatment facilities having at least one existing basin including installing generally vertical partitions at spaced locations in the at least one existing basin in order to divide the at least one existing basin into a plurality of treatment stage regions, installing at least one air lift in each of the plurality of treatment stage regions, loading each treatment stage regions with a quantity of floatable porous particles, supplying waste water to at least one of the plurality of treatment stage regions and allowing the waste water, but generally not the particles, to flow from at least one of the plurality of treatment stage regions to at least another of the plurality of treatment stage regions and operating the at least one air lift in each of the plurality of treatment stage regions to provide aerobic waste water flow therein in operative engagement with the floatable porous particles.

Abstract: A garbage treatment apparatus of the type which includes a cylindrical container formed to store an amount of porous inorganic balls containing microorganism effective for decomposition of garbage and to store an amount of garbage to be treated, a rotation shaft vertically mounted for rotary movement in a central portion of the container, a driving mechanism mounted on the container for driving the rotation shaft, a screw propeller assembly mounted to a lower portion of the rotation shaft for rotation therewith to feed downward the inorganic balls and garbage stored in the container, a flow adjustment plate in the form of a truncated conical plate mounted within a bottom portion of the container concentrically with the rotation shaft and placed in an upwardly expanded condition, and a rotary disk horizontally mounted to a lower end of the rotation shaft for rotation therewith and placed under the propeller assembly, the rotary disk being coupled with the flow adjustment plate to close a lower end opening of t

Abstract: Water dispenser, which comprises, in addition to a water container, a filter element contained within a filter housing having an inlet and a dispensing outlet, a source of pressure and first valve and first conduit means for feeding water from the container to the filter housing inlet; means for feeding gas to the filter inlet to create gas pressure at the inlet, consisting of a reservoir, and the control means comprise the third conduit and valve means for permitting or preventing the admission of water into the reservoir, second valve and conduit means for controlling the level of the water in the reservoir, a pressure gauge for monitoring the pressure at the filter inlet; and control means for controlling the gas feeding means to cause or stop the feeding.

Abstract: A liquid chlorine supply canister is connected by a chlorine supply tube and venturi chamber to a recirculating pipe that discharges into a storage-mixing tank into which sewage effluent is received from a source. The chlorine solution supply tube within the canister is provided with a filter/orifice assembly having an orifice dimension that is designed for the size of the wastewater treatment system. A pump within the storage-mixing tank causes circulation of sewage effluent through the venturi chamber and develops a suction in the chlorine solution supply tube which draws chlorine through the filter and orifice assembly, through the supply tubing and into the flowing sewage effluent stream to the storage-mixing tank as well as to a spray field.

Abstract: A liquid circuit for filtering a liquid, comprising a liquid storage vessel (10), a liquid pump (17), a consumer or user device (14), a filter element (23) and a controller (24). A heated liquid can be supplied at least partly to the filter element (23). The liquid circuit may be used in liquid systems in which a liquid, such as water, oil or fuel, is filtered and at least part of the liquid is returned to the storage vessel (10). The liquid is pumped in the liquid circuit from the storage vessel (10) by the pump (17) through lines (11, 13, 15, 16), filtered by filter element (23) and supplied to the consumer device (14). Excess liquid not required by the consumer device (14) is returned through liquid return line (15) to the controller (24) which directs the liquid either to the filter element (23) or the storage vessel (10), depending on the liquid temperature.

Abstract: A method and a device for purifying waste water is described, in particular for an anaerobic purification, in a container receiving a medium under the development of gas, wherein the gas developing is caught by a gas collector, ingredients of the medium entrained by the gas are separated and the ingredients separated are passed back into the medium below the gas collector. In order to improve the purification effect in a constructively simple manner, it is suggested to take in medium from the upper portion of the container by a gas lifting effect of the rising gas and to conduct it back into the container.

Abstract: An apparatus provides for treatment of primary effluent from residential and commercial establishments to allow subsurface or surface disposable of wastewater.

Abstract: The invention discloses an apparatus for filtration of water from hydrocarbons comprised of a fresh-feed inlet, a first dead end filter, having a filter medium that is hydrophobic, a second cross-flow filter, having a membrane that is hydrophobic, a common housing to contain both the first and second filters, a system for the recirculation of the retentate, a chamber for water settling, and an outlet for clean fuel permeate. This invention takes advantage of the properties of the functional groups of a surfactant, by using the surfactant to allow a hydrophobic medium to attract water, attach the water molecules to the hydrophobic medium, and then allow for agglomeration of the water molecules, which finally become large enough to detach and be swept away by the cross-flow. The hydrocarbon may then pass through the second membrane filter uncontaminated by water and be used as clean fuel.

Abstract: The present invention discloses a process and an apparatus for removing deep sub-micron particles from water. The invented process includes adjusting pH value and conductivity, adding an oxidation agent, performing an electro coagulation reaction/an electro-oxidation reaction, and performing a flocculation sedimentation, etc. The invented apparatus includes a front adjustment tank for adjusting the properties of waste water, wherein the adjustment includes a pH adjustment, an electrolyte adjustment, or an oxidant addition, etc.

Abstract: A system for production of water having dissolved ozone includes a water feeding section, a container part, an ozone feeding part for feeding ozone to a mixing part dissolving ozone in the water, the mixing part drawing water from the lower part of the container, an ozone measuring part for measuring the ozone concentration of the water in the container, a water pump for circulating the water from the lower part to an upper part of the container in dependence of the measured ozone concentration and from the ozone feeding section to the mixing part in dependence of a predetermined ozone concentration, the container having an outlet for water having the predetermined concentration of ozone.

Abstract: A water purification system for purifying water flowing through a water flow path. The system includes a water purification device having an inlet and an outlet in the water flow path and at least one interior volume communicating with the inlet and outlet. A purification medium is disposed within the interior volume of the water purification device. A flow control system is provided controlling a volume of purified water dispensed from the outlet. The flow control system includes an input device configured to allow a user to input a desired volume of purified water to be dispensed from the outlet and a sensing device coupled with the electronic input device and operative to determine the volume of purified water being dispensed from the outlet. A flow regulation device is coupled with the flow control system and operative to stop the discharge of purified water at the outlet upon reaching the desired volume of purified water.

Abstract: The apparatus of the present invention for treating a gas containing a substance to be decomposed comprises an adsorption unit equipped with an adsorbent for adsorbing the substance to be decomposed, a steam introduction unit for bringing steam into contact with the adsorbent, a condensation unit for obtaining a condensed liquid containing the substance to be decomposed from the steam containing the substance, a reaction tank, a condensed liquid supply unit for supplying the condensed liquid to the reaction tank, a hypochlorous acid supply unit for supplying a solution containing hypochlorous acid to the reaction tank, and a light irradiation unit for irradiating the reaction tank with light.

Abstract: An integrated biological treatment process and bioreactor system provides means for simultaneous removal of biodegradable solids (TSS), nitrogen (N) and phosphate (P) from water and wastewater. The system comprises microbial consortia immobilized in separate bioreactors for anaerobic processes, P removal, denitrification and, optionally, BOD removal and polishing.

Abstract: An apparatus for treating water with ozone includes a first conduit and a passageway for admitting ozone into the first conduit. There is a second conduit having a top, an inlet connected to the first conduit and an outlet. There is a third conduit having a top and a vertical portion extending downwardly adjacent to the outlet of the second conduit. The third conduit has a bottom with an outlet below the outlet of the second conduit. The outlet of the second conduit is no more than one-third the distance from the top of the third conduit to the outlet of the third conduit. There is a passageway connecting the third conduit to the first conduit above the outlet of the second conduit. The passageway is sized to permit a reduced flow of water through the third conduit compared to the flow through the second conduit and provides means for gas discharged from the outlet of the second conduit to rise through the vertical portion of the third conduit to increase dissolving of the gas in the water.

Abstract: The present invention provides a specimen processing system for centrifuging a specimen such as blood and then dispensing the specimen. This system comprises a dispense error specimen removing unit for removing a specimen in which a dispense error has been caused due to a fibrin in a dispense process, a feedback unit for injecting fibrin-decomposing beads into the specimen removed by the dispense error specimen removing unit and feeding the specimen containing the beads back to a centrifuge process, a reprocess control unit for causing the specimen fed back to the centrifuge process by the feedback unit to be centrifuged again, and a system controller for automatically controlling the dispense error specimen removing unit, the feedback unit, and the reprocess control unit.

Abstract: A modular fluid transport system is provided for transporting fluids in a dialysis clinic from a fluid source to the dialysis machines. The system includes modular ductwork and modular fluid conduits. The connecting stations may include quick detachable interface manifolds which allow dialysis machines to be easily changed out. The components of the fluid transport system may be heat sterilized. The components of the system may be prefabricated off site and then quickly assembled in the dialysis clinic. Flexibility in the arrangement of equipment within the clinic is provided for.

Abstract: An apparatus for recycling a grinding slurry capable of effectively removing unwanted components at a reduced cost. Slurry used in a grinding treatment is at first recovered as recovery slurry. The recovery slurry is then recycled so as to obtain recycled slurry. One or more cyclone separators are provided and used for sizing the used slurry to obtain slurry particles having a predetermined particle size. The slurry having the predetermined particle size is supplied as recovery slurry. When the recovery slurry is recycled to produce recycled slurry, one or more supersonic wave generators are used for irradiating supersonic waves to the recovery slurry.

Abstract: A centralized bicarbonate mixing system is provided for a plurality of dialysis machines of a dialysis clinic. The system includes a source of purified water, a mix tank, an eductor having a hopper for receiving dry bicarbonate material, a mixing pump and a mixing conduit loop connecting the mixing pump, the eductor and the mix tank so that as water is circulated by the mixing pump through the mixing conduit loop, the dry bicarbonate material is drawn into the eductor and mixed with the water. The system further includes a circulation tank, and a transfer conduit connecting the mixing conduit loop to the circulation tank, so that a mixed bicarbonate solution can be transferred from the mixing conduit loop to the circulation tank. The system further includes a circulation pump, and a circulation supply conduit connecting the circulation tank and the circulation pump so that mixed bicarbonate solution can be pumped from the circulation tank to the dialysis machines.

Abstract: The present invention is generally directed to handling the wastewater, or condensate, from a hydrocarbon synthesis reactor. More particularly, the present invention provides a process wherein the wastewater of a hydrocarbon synthesis reactor, such as a Fischer-Tropsch reactor, is sent to a gasifier and subsequently reacted with steam and oxygen at high temperatures and pressures so as to produce synthesis gas. The wastewater may also be recycled back to a slurry preparation stage, where solid combustible organic materials are pulverized and mixed with process water and the wastewater to form a slurry, after which the slurry fed to a gasifier where it is reacted with steam and oxygen at high temperatures and pressures so as to produce synthesis gas.

Abstract: An embodiment of the present invention relates to a biological process for continues purification of wastewater by converting its constituents to a solid form that can be easily separated using retainable biological catalysts and a novel reactor hereafter referred to as “Reverse Fluidised Loop Reactor” (RFLR) for performing the above said process.

Abstract: A water treatment and recycling system is provided having an aeration chamber, a reaction chamber, a water tank, and a plurality of pumps. The water tank houses the treated water and is the supply source for supplying water to different water needs. The first pump receives waste water from a waste source, such as a toilet, and pumps it into the aeration chamber. The aeration chamber initially treats the water and passes the contents therein via a second pump to the reaction chamber. The water is secondarily treated by the reaction chamber and thereafter pumped into the water tank. The first pump also receives a continual supply of treated water from the water tank. The aeration chamber and reaction chamber contains therein a plurality of specially treated wood chips, and a bio-colony consisting of different microbes and bacteria introduced into the wood chips.

Abstract: The invention relates generally to a process and apparatus for treating biosolids resulting from the treatment of biological wastewater streams. The invention relates to autothermal aerobic treatment of biosolids where temperature is controlled by adjusting the amount of shear generated through jet aeration devices. The invention provides for a truly aerobic environment under which thermophilic microorganisms will thrive. The invention also relates to a method and apparatus for controlling foam generated in a treatment reactor.

Abstract: An odor control apparatus for a facultative lagoon, and a facultative lagoon created and maintained thereby. The apparatus includes an aerator and a cover. The aerator can include a body with an inlet and an outlet and a support such as a float. The inlet and outlet are submerged slightly beneath the surface of the material in the lagoon. Air supplied under pressure to the aerator diffuses oxygen into the aerobic layer of the lagoon. The dissolved oxygen is used in the biodegradation of the hazardous and odorous gases of the waste material that would otherwise be emitted into the atmosphere. The cover is either porous or non-porous and covers some or substantially all of the lagoon surface. The cover promotes accumulation and concentration of desirable odor degrading bacteria in the lagoon.

Abstract: A method and system for extraction of chemicals from an groundwater remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating groundwater contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.

Abstract: A pure water reusing system recovers water discharged from apparatuses in which pure water is used, and regenerates the water to produce pure water. The pure water reusing system has a recovering and regenerating apparatus for recovering water discharged from the apparatuses and regenerating the water by removing impurities from the water to produce pure water, and a regenerated pure water supply line for supplying the regenerated pure water to at least one of the apparatuses. The same process is conducted in the apparatuses in which pure water is used.

Abstract: An apparatus and method for enhancing dissolution of gases in liquids by ejecting the gas-liquid mixture through nozzles in a reaction vessel. The nozzles are pressurized, sized and directed to produce micro-fine gas bubbles in the liquid and to initiate rotational flow of the gas-liquid mixture in the reaction vessel. The small bubble size and rotational flow maximizes the time the gas is in contact with the liquid. The apparatus and method are used to increase the dissolution of ozone gas into aqueous solutions to increase the decomposition of aqueous-based organic compounds, precipitation of heavy metals, and destruct and/or deactivate enteric viruses, enteric bacteria, and protozoans. An alternative embodiment mixes the gas with the liquid prior to ejection through the nozzles.

Abstract: Catalyst particles are separated from the wax in a reactor slurry reactor by feeding a portion of the slurry to a dynamic settler. Heavier catalyst particles settle and are removed as the slurry at the bottom of the settler is recycled back to the reactor. Clarified wax is removed at the top of the settler. A multi-channel baffle prevents turbulence, improving retention of the desired heavier catalyst particles.

Abstract: The invention relates to a device and a method for separating whole blood into blood components. The device has a collecting container for collecting whole blood, a primary container, and one or a plurality of satellite containers downstream from the primary container. The collecting container is connected to the primary container via a branch line containing a leucocyte filter. In addition, a bypass line is provided between the collecting container and the primary container for creating a fluid connection that circumvents the leucocyte filter. The primary container is also connected, via an additive line, to an additive container containing an additive agent for storing a blood component. The method involves collecting the donor's whole blood in the collecting container and conveying it, via the bypass line, into the primary container. The whole blood located in the primary container is then separated by centrifuigation into an erythrocyte layer and a mixed layer of blood plasma and thrombocytes.

Abstract: Carbon dioxide, liberated by introducing fouling inhibiting bubbles into a tank containing an immersed membrane module, is captured and returned to the tank by way of the bubbles to minimize increases in pH in the tank water caused by carbon dioxide stripping. Minimizing the pH increase reduces the amount of acid required to produce a desired pH in the tank water or, with scaling feed water, reduces the rate of membrane fouling.

Abstract: A washing and recycling unit for on-site washing of heavy machinery. The unit has a supporting frame onto which is mounted a washing liquid storage tank. A washing hose arrangement connected to the tank injects washing liquid over the heavy machinery. A drainage receptacle positioned under the heavy machinery collects used liquid mixture falling from the heavy machinery. The used liquid mixture is sucked up with a suction hose connected to a cyclone which separates rough solids from liquids. A pump and filtering arrangement recycles liquid from a settling tank under the cyclone by pumping it out, filtering it and transferring it into the washing liquid storage tank. A hoisting system mounted onto the supporting frame is used to movably support an operator directing the washing liquid around the heavy machinery.

Abstract: The bubble trap is used in extracorporeal blood flow circuits of the type used for open heart surgery. The trap is placed in the external blood flow and it removes small micro bubbles from the blood prior to delivery to the body. The device accelerates the blood flow radially and the small bubbles migrate toward the center of the accelerated flow. These bubbles are concentrated at this location and the blood that contains the micro bubbles is extracted and recirculated before the degassed blood flow is returned to the body.

Abstract: There is provided an apparatus for the filtration of fluid media, in particular for the pre-screening of media, that has a primary pack of hollow discs, which are arranged parallel to each other at regular distances to each other, the walls of which are made of a sieve material. The apparatus also has a primary, hollow shaft, which penetrates and is fixed to the hollow discs, connecting its interior to the cavities of the discs, and is fitted with a drive. Also included is a secondary pack of discs, which are arranged similarly to the hollow discs of the primary pack. There is a secondary shaft that is arranged similarly to the primary shaft. The two packs with their respective shafts are designed and arranged in such a way that the discs of one pack protrude into the spaces between neighboring discs of the other pack. There is a container that encloses the packs and the shafts. The container has an inlet for the medium to be treated, as well as an outlet for the retentate.

Abstract: A process and system for enhanced nitrogen removal in a wetlands wastewater treatment facility is disclosed. Air is bubbled into the wetland to form an overall aerobic zone to enhance nitrification of the ammonia in the wastewater. A portion of the effluent is recycled back to the nutrient rich, anaerobic zone of the inlet of the wetland to enhance denitrification of the wastewater.

Abstract: The apparatus of the present invention for treating a gas containing a substance to be decomposed comprises an adsorption unit equipped with an adsorbent for adsorbing the substance to be decomposed, a steam introduction unit for bringing steam into contact with the adsorbent, a condensation unit for obtaining a condensed liquid containing the substance to be decomposed from the steam containing the substance, a reaction tank, a condensed liquid supply unit for supplying the condensed liquid to the reaction tank, a hypochlorous acid supply unit for supplying a solution containing hypochlorous acid to the reaction tank, and a light irradiation unit for irradiating the reaction tank with light.

Abstract: A finely divided mesh cloth of bronze, brass, and/or copper is employed in the water circulation system of a fish tank and thereby prevent/inhibit/remove algae formation or outright kill these types of organisms, besides functioning as a filter. The process and apparatus may also be used in hot tub spas, water ponds or slews, etc.

Abstract: An apparatus for treating water with ozone includes a first conduit and a passageway for admitting ozone into the first conduit. There is a second conduit having a top, an inlet connected to the first conduit and an outlet. There is a third conduit having a top and a vertical portion extending downwardly adjacent to the outlet of the second conduit. The third conduit has a bottom with an outlet below the outlet of the second conduit. The outlet of the second conduit is no more than one-third the distance from the top of the third conduit to the outlet of the third conduit. There is a passageway connecting the third conduit to the first conduit above the outlet of the second conduit. The passageway is sized to permit a reduced flow of water through the third conduit compared to the flow through the second conduit and provides means for gas discharged from the outlet of the second conduit to rise through the vertical portion of the third conduit to increase dissolving of the gas in the water.

Abstract: The invention relates to a process for the preparation and delivery of ozonated water to at least one user point, according to which a storage buffer tank is provided for the ozonated water, and an upstream ozonation loop is provided, making it possible to feed the tank with ozonated water, the upstream ozonation loop comprising a component for controling the flow of water flowing in the loop. A fresh-water supply line is also provided, connected by its downstream part to the upstream ozonation loop and fitted with a component for interrupting the freshwater flow, the loop portion located between the tank and the connection point of the fresh-water supply line being fitted with a component for interrupting the recirculation flow upstream of the tank.