Abstract: The invention discloses a multifunctional water supply tank with pressure-stabilized water storage and quality-distinguished supply of service and potable water, which includes a service water storage room with a water inlet and a water outlet, a potable water storage room communicated with the service water storage room and containing purifying agents, a potable water outlet, and a water outlet communicated with a solar water heater, the present invention solves the problems of insufficient water pressure of tap water pipe network and the secondary water contamination during water supply by the pipe network, meanwhile it heats and preserves the temperature of the water supply tank cover and the water supply pipe walls, and separates pure water from service water, solar heated water, and purified potable water for separate metering and utilization.

Abstract: The apparatus and methods of the present invention enable efficient and appropriate treatment of Urban Water Runoff, so that the treated Urban water Runoff can be can be introduced into public waterways without contaminating such waterways. The system apparatus utilizes adsorptive Organoclay media, mechanical filtration and ultraviolet sterilization. The methods and apparatus of the present invention remove contaminants from Urban Water Runoff to a level which enable the resulting effluent to meet appropriate standards for introducing the treated Urban water Runoff in to public waterways. The method and apparatus of water treatment of the present invention does not utilize chlorine containing compounds which, when combined with organic compounds can produce THM's that can become problematic when re-introduced to the downstream environment. The systems of the present invention can be made sufficiently compact so as to enable their use in remote locations.

Abstract: Mineral contaminants are removed from water in a system in which water is sprayed into an air head at the top of a tank through a diffuser and withdrawn through a pick-up tube. A solenoid valve operates to allows air from a compressor to flow into the top of the tank through a shuttle valve which is opened by the air pressure. Simultaneously a drain valve connected to the shuttle valve opens a drain, venting water and air from the tank. The shuttle valve, closed by the solenoid valve, closes the air supply line and connecting the shuttle valve to atmosphere, and pressure within the aeration tank can close the shuttle valve, which causes closing of the drain valve. The part of the valve which opens the drain is made responsive to excess pressure within the air tank to open the drain and so acts as a pressure relief valve.

Abstract: Discloses apparatus to perform a process to remove water and minerals from a bitumen froth output of a oil sands hot water extraction process. A bitumen froth feed stream is diluted with a solvent and supplied to a primary inclined plate separator stage, which separates the bitumen into an overflow stream providing a bitumen product output from the circuit and a bitumen depleted underflow stream. A primary cyclone stage, a secondary inclined plate separator stage and a secondary cyclone stage further process the underflow stream to produce a secondary bitumen recovery product stream and a recycle stream. The secondary bitumen recovery product steam is incorporated into and becomes part of the circuit bitumen product output stream. The recycle stream is incorporated into the bitumen froth feed stream for reprocessing by the circuit.

Abstract: There is disclosed a device adapted to provide water purified to human consumption level, and arranged for connection to a water supply. The device comprises a water purifier, a container for purified water and connections between the water purifier and the purified water container, The water purifier includes a filtering system that removes particles present in water to be purified as well as any undesirable adsorbable material, The filtering system is in fluid communication with the water supply on the one hand, and the container, on the other hand. The device also includes an ozone generator and a venturi for injecting ozone into filtered water downstream of the filtering system, but before introduction of the purified water into the container. A pump is arranged to draw water from the water supply, to feed same to the filtering system, and thereafter to the container.

Abstract: A denitrification system for denitrified wastewater or nitrified water treatment using a detergent or detergent-like compound comprising available carbon. The system comprises a plurality of interconnected tanks including a mixing tank which feeds detention tanks which in combination provide a detention time period for the effluent. A controller determines the amount of detergent dispensed into the mixing tank in accordance with the measured volume of effluent to be treated. The mixing tank comprises a heater for maintaining the nitrified effluent temperature above 50 degrees F. An optional line filter can be added to the output of the system for further reducing organic nitrogen concentration. An alternate embodiment comprises passing the final denitrified effluent through a pump chamber for pumping of the effluent to a sand filter capable of reducing bacterial populations.

Abstract: The invention relates to a centrifugal separating device and method for clarifying must during wine production, especially with a separator (7). Gas and/or gelatine and/or other additives are added to the must that is clarified in the separating device after the must has passed through the separating device and before it passes through the constant pressure valve (13) of the separating device, as the must is discharged (9), in order to obtain flotation.

Abstract: A water treatment system that includes a water storage tank fluidly connected to a water source through an inlet, a chlorination device fluidly connected to the water storage tank and the inlet, a media filter vessel at least partially contained within the water storage tank and a pump fluidly connecting the media filter vessel with the water storage tank. In a preferred embodiment of the present invention, the chlorination device includes a chlorination device configured as a chlorination vessel containing a chlorine tablet. Flow through the chlorination device is regulated to provide decontamination treatment. In a preferred embodiment of the present invention, the water treatment system includes a media filter vessel contained at least partially within the water storage tank and completely within a footprint or diameter of the water storage tank.

Abstract: A waterless urinal that can be flushed with liquid consists of a urinal with a flushing liquid and urine separator and a flushing liquid recycling system; the flushing liquid and urine separator having three flow barriers which can guide urine to down-and-up type flow paths to a drain; two of the three flow barriers being able to serve as weirs; the flushing liquid recycling system being able to send flushing liquid from the lower portion of the urinal to the upper portion of the urinal; the flushing liquid recycling system being optionally a foot-operated pumping system which optionally having a paddle which connects to a bucket which can be tilted up or down by operations of the paddle; the foot-operated pumping system of the flushing liquid recycling system optionally having two paddles; the flushing liquid recycling system optionally being a pump, motor and piping system which has sensors, timer and power control and supply system.

Abstract: Processes and apparatus are disclosed for separating and purifying aqueous solutions such as seawater by causing a substantially impermeable mat of gas hydrate to form on a porous restraint. Once the mat of gas hydrate has formed on the porous restraint, the portion of the mat of gas hydrate adjacent to the restraint is caused to dissociate and flow through the restraint, e.g., by lowering the pressure in a collection region on the opposite side of the restraint. The purified or desalinated water may then be recovered from the collection region. The process may be used for marine desalination as well as for drying wet gas and hydrocarbon solutions. If conditions in the solution are not conductive to forming hydrate, a heated or refrigerated porous restraint may be used to create hydrate-forming conditions near the restraint, thereby causing gas hydrates to form directly on the surface of the restraint.

Abstract: A multi-phase separation system utilized to remove contaminants from fluids includes a pre-filtering module for filtering a contaminated fluid to provide a filtered contaminated fluid. A condenser module receives the filtered contaminated fluid and a contaminated gas phase for condensing the contaminated gas phase to a contaminated liquid. A phase reaction chamber converts the filtered contaminated fluid to a contaminated mist wherein the mist is subjected to a low energy, high vacuum environment for providing a first change of phase by separating into a contaminated gas phase and a liquid mist phase. The contaminated gas phase is carried out of the phase reaction chamber by a carrier air. A vacuum pump provides the low energy, high vacuum environment in the phase reaction chamber and delivers the contaminated gas phase to the condenser module for condensation providing a second change of phase.

Abstract: A method is provided for thickening sludge produced through a ballasted flocculation process. The sludge and granular material from the ballasted flocculation process are directed to a sludge separator where the sludge is separated from the granular material. Thereafter the separated sludge is sent to a degassing area and the sludge is degassed. A flocculating agent is mixed or injected into the sludge. The sludge is directed to a sludge thickener with a load at a sill calculated on the surface of the thickener greater than 200 kgMIS/m2/day. This process produces a thickened sludge having a concentration greater than 10 gm/l.

Abstract: A wastewater treatment system integrates three tanks that oxidize organic compounds, retain solids, reduce nutrients, an inactivate pathogens, discharging an effluent that protects public health and the environment. The system homogenizes wastewater and controls its frequency, interval, volume, and rate of dosing into a treatment tank designed to develop, facilitate, optimize, and maintain dense microbial colonies both suspended in liquid and attached to engineered filter media. These colonies and filter media complete the oxidation, retention, reduction, and inactivation.

Abstract: An improved apparatus and method is disclosed for separating solids from a liquid. The apparatus and method comprises a first separator for circulating the solids and the liquid to concentrate the solids within the liquid. The concentrated solids are discharged into a second separator. The second separator extends upwardly for separating and discharging the concentrated solids from the liquid.

Abstract: An apparatus which uses a process reactor having three separate reaction stages to remove high concentrations of 3000 mg/l heavy metals from acidic wastewater and chemical solutions. During each of three stages the pH level of the wastewater is increased and sludge and flocculate organic and metal hydroxyl matters are removed from the wastewater to provide clean water which is discharged in to a sewer system.

Abstract: A method of treating liquid including mixing coagulant with the liquid, introducing mixed coagulant and liquid into a primary reaction zone, containing an agitator, of a reactor which is substantially concentrically positioned with respect to a secondary reaction zone of the reactor, introducing flocculant into the primary reaction zone at a location between the agitator and where the mixed coagulant and liquid are introduced into the primary reaction zone, mixing the mixed coagulant and liquid with the flocculant and causing the resulting mixture to flow into the secondary reaction zone, introducing an encapsulating agent into the secondary reaction zone, recirculating the liquid and encapsulated flocs through the primary and secondary reaction zone, and passing the liquid and encapsulated flocs outwardly of the reactor, and an apparatus for treating liquids including a reactor, a draft tube substantially concentrically positioned within the reactor and being positioned such that the liquids may flow inwardl

Abstract: A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically.

Abstract: Apparatus, systems and methods are disclosed for treating a biological fluid with light. A container of biological fluid is introduced into a fluid treatment chamber where it is contacted with light provided by one or more light sources in proximity to the fluid treatment chamber. A drawer for holding containers of biological fluid introduces the containers into the chamber. Containers for holding the biological fluid are marked by the apparatus to indicate the status of the treatment.

Abstract: The ultrapure water producing system produces ultrapure water with high purity and remarkably low content of metals even just after restart of operation thereof. Water sent through the pump 3 or 4 into a line 8 flows through a heat exchanger 10, a line 12, a UV oxidation apparatus 20, a line 22, an ion exchange device 30, a line 32 and a membrane filtering device 40 and is treated in each device in this order to be ultrapure water. The devices 10, 20, 30, 40 have bypass lines 11, 21, 31, 41, respectively. In the sterilizing process, bactericide water is fed only to the membrane filtering device 40 via the bypass lines 11, 21 and 31. In the following sterilizing process of the heat exchanger 10 and the UV oxidation apparatus 20, the bactericide water flows the line 41 bypassing around the membrane filtering device 40.

Abstract: In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater. The devices and methods of the invention are useful for enhanced secondary wastewater treatment, including BOD and TSS removal. Tertiary treatment can alternately or additionally be achieved in the bioreactor with nitrification of ammonia, with nitrification and denitrification, and with nitrification, denitrification, and chemical phosphorus removal. A vertical shaft bioreactor is also provided which achieves thermophilic aerobic digestion and pasteurization of sewage sludges, optionally to produce class A biosolids.

Abstract: A method of treating water includes exposing influent comprising water desired to be treated to ozone in sufficient quantity to disrupt cell walls of undesired microorganisms therein, thereby releasing nutrients from within the microorganisms in a form amenable to bioassimilation. The ozone is further in sufficient quantity to oxidize toxic, humic substances to a form amenable to plant bioassimilation. Aquatic plants are contacted with the ozone-exposed water, the aquatic plants being adapted to remove the released and oxidized nutrients therefrom. Water emerging from the aquatic plants is then again exposed to ozone in sufficient quantity to further purify the water.

Abstract: A water treatment control system for minimizing trihalomethane formation includes chlorine injection equipment having a plurality of chlorine injectors (11d, 12, 13), a fluorescence analyzer 7 provided on the upstream of the chlorine injectors, and a water flowmeter 6. An chlorine injection rate necessary to reduce a trihalomethane formation potential is calculated by a chlorine injection rate calculating apparatus 14a based on a measured value from the fluorescence analyzer 7. An chlorine injection amount from the chlorine injectors is controlled by chlorine injection amount control apparatuses 15a–15c based on the chlorine injection rate and a measured value from the flowing water flowmeter 6.

Abstract: A paint spray booth sludge recovery system, apparatus and method is provided for water washed paint spray booths. The spray booths are used with a tank or pit which can accommodate flotation for removal of spent paint. Preferably, the tank has a drop box section, a chemical treatment section, a weir box section and a booth recirculation pump section. A series of weirs are used to separate the spent paint and send a concentration thereof from the weir box to a separator or centrifuge. The water level in the system is controlled by sensing the weir box water level to keep the water crests over the weirs at the desired levels. Scavenging and agitation are provided in the tank to keep it entirely clean for prolonged periods without any accumulation, even during downtime.

Abstract: A standard 20 ft or 40 ft sea-freight shipping container is configured as a septic tank, or as an aerobic trickle filter station. The shipping-container is lined with a watertight shell or liner. The liner may be a prefabricated separate structure inserted into the container, and supported from the container walls. Or, the liner may be actually constructed inside the container, again taking mechanical support from the container walls. The openable doors at the end of the standard container are retained, a wall being added to the shipping-container a foot or two inside the doors to form the tank, leaving a utility room for pipework, valves, pumps, etc.

Abstract: A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand filter follows, which is sized and shaped to promote growth of a biomass for water purification. The up flow roughing filter removes particulates, contributes to the removal of dissolved organics, and protects the slow sand biomass by removing disinfection residuals. In another aspect a method of maintaining the plant is provided, including washing the up flow roughing filter by draining water down through it, providing a vigorous up flow to agitate the top layer, and then washing the slow sand filter.

Abstract: A portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants includes a portable, refillable and hand-holdable vessel for holding and pouring water having a spout and, inside the portable, refillable and hand-holdable vessel, moving water and still water processing module cooperative to remove inorganic and organic pollutants from water received batchwise by the vessel.

Abstract: A module filled with an organic porous ion exchanger is placed midway on a pipe for transporting high-purity water to be supplied to a point-of-use. As the organic porous ion exchanger is used an organic porous ion exchanger having a three-dimensional mesh structure with mesopores, having an average diameter of 1 ?m to 1000 ?m, in a wall between interconnected macropores and in which an ion exchange group is uniformly distributed and an ion exchange capacity is 0.5 mg equivalent weight/gram of dried porous body or greater.

Abstract: A water filtration device (3) and method which removes heavy metals and organic compounds from raw water is provided.

Abstract: A water treatment apparatus includes a mixing tube through which the waste water passes for mixing into the waste water a plurality of chemicals for causing flocculation of contaminants. The mixing tube is connected to a settling chamber for allowing settling of the flocculated contaminants and for supplying clarified water at an outlet of the settling chamber. The mixing tube has a plurality of injection members at spaced positions along the duct, each including a pump and a chemical supply for injecting a selected quantity of a selected chemical into the duct and each including a respective mixing member and drive for mixing the chemical into the water in the duct. An electrical separation section is provided in the system before or after the settling and includes a duct, into which the water is introduced and a plurality of amorphous metal plates across the duct arranged to be charged at low voltage.

Abstract: A UV-assisted advanced-ozonation water treatment system comprises a water treating tank 1, an ozonic water tank 2, an ozonized gas generator 3, and a UV light source 4 disposed in the water treating tank 1 and having a UV-radiating surface 4a, and an ozonic water jetting device including jetting nozzles 5 for jetting the ozonic water onto the UV-radiating surface of the UV light source. An ozonized gas diffusing device 12 is placed in the ozonic water tank 2. An ozonized gas generated by the ozonized gas generator 3 and compressed by a compressor 13 at a pressure in the range of about 2 to about 3 kg/cm2 is diffused into the ozonic water tank 2 by the ozonized gas diffusing device 12. A high-pressure, a high-ozone-concentration ozonic water produced in the ozonized water tank 2 is jetted through the jetting nozzles 5 onto the UV-radiating surface 4a.

Abstract: A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically.

Abstract: A method and apparatus for the removal of suspended solids from water, waste water and other effluents is disclosed. The raw fluid being extracted is placed in a pressurized equalization chamber by a pumping apparatus. The fluid might be ground in advance to reduce the size of solid particles suspended therein to a manageable size. Solids can settle from the fluid before pumping into a second chamber for further setting. Chemicals are injected between the first and second chambers. The sludge recovered from from the base of the chambers can be sterilized using conventional methods, and the separated fluid discharged from the clarification chamber is further cleaned, also using conventional methods. The method and apparatus of the present replaces or supplements conventional mainframe biological treatments.

Abstract: A system and method for treating and removing hydrocarbon and other contaminants in bilge and ballast water, utilizing a multiple progressive process that chemically and electrically treats-and removes contaminants. Wastewater, received by a sump, is transmitted to a holding tank and treated, over a period of time while-influent wastewater continues off loading. The wastewater is pumped to an oil/water separator tank that decants free-floating oil from the wastewater to an oil retention tank. The wastewater then undergoes an electrocoagulation process where emulsions are broken and compounds that further aid treatment are created. The treated water flows to a retention/separation tank where contaminant particles coalesce and separate. Water is decanted and transferred to a clean water holding tank through an ozone injection system and an activated carbon filter. Treated water is recirculated until it exits the system meeting discharge limits for organics and metals allowing release into the environment.

Abstract: Water to be desalinated or otherwise purified is enriched by having hydrate-forming substance dissolved into it, without causing hydrate to form. Hydrate kernels are brought into contact with the enriched water to be treated, and the hydrate kernels grow outwardly into the water to be treated by incorporating dissolved molecules of the hydrate-forming substance and water from the water to be treated. Thus, substantially solid, generally spherical hydrate masses, which are preferred for hydrate-based desalination or purification, can be formed. Hydrate-forming substances can be dissolved into the water to be treated under conditions not conducive to formation of hydrate, such that hydrate does not form, using vigorous means. Hydrate-forming substance is also preferably dissolved into the water to be treated under conditions suitable for hydrate to form, but without causing hydrate to form, e.g., by being infused into the water to be treated using infusion membranes.

Abstract: A clarification system for fluids in which particles are separated from the fluid by flotation and in which the buoyant media inducing the flotation is recycled. Flotation can be assisted by a flotation assistance device, such as dissolved air flotation.

Abstract: A method, system and apparatus for treating water is provided including a treatment mode comprising the steps of drawing said water from a pressurized water source through a controlling device to a treating vessel, the water inlet of said treating vessel being substantially at the top of a treating vessel, contacting said water with pressurized air present at the top of said treating vessel to release substantially all hydrogen sulfide and offensive odors present in the water and to dissolve oxygen in the water which reacts with soluble iron in the water to form ferric oxides, flowing the water through a filter bed of calcite mineral to remove substantially all sediment present in the water and to neutralize the ph of the water and to remove substantially all the ferric oxides from the water, the ferric oxides fastening to the calcite minerals and to already fastened ferric oxides, flowing the water to a final media means and to the outlet of the treating vessel.

Abstract: A degassing device (10), a hydrogen dissolving device (12), and a palladium catalyst column (17) are provided in that order downstream of a high-purity water production device (1), and an impurity removal device (19) is connected to the exit side of treated water of the palladium catalyst column (17). The impurity removal device (19) removes impurity ions which are eluted into the water to be treated or impurity particulates which mix in with the water to be treated during the treatment in the palladium catalyst column (17). The impurity removal device (19) comprises an ion exchange device (20) and a membrane treatment device (21) such as a ultrafiltration membrane device, a reverse osmosis membrane device or the like. By providing an impurity removal device (19) in this manner, it is possible to remove impurities generated during hydrogen peroxide removal treatment by the palladium catalyst and to prevent degradation in quality of hydrogen-dissolved water.

Abstract: In the present invention, solid contents 38, which are collected by a solid-liquid separation device 33 in a solid-liquid separation tank 14 and charged into a decomposing treatment tank 11, are decomposed to water and CO2 by the action of aerobic microbes and the air (oxygen) supplied from a lower aeration tank 12 and substantially disappear. The oil contents contained in the water having been decomposed is removed by an oil-water separation tank 13.

Abstract: An internal marine aquarium filter that provides within a single enclosure protein skimming, biological, mechanical and chemical filtration where the unit creates direct adjustable current for the aquarium independent of the activities of filtration and uses one interchangeable pump which can be of different size and manufacture. The unit is comprised of an outer casing with dedicated areas for biological, mechanical and chemical filtration, a removable protein skimmer with collection cup and lid, a removable plumbing assembly connected to a submersible pump, which performs filtration, protein skimming and creates a direct adjustable water current inside the aquarium independent of all other functions, and has sponge filters that provide a place for biological activity.

Abstract: An apparatus for treating metal-working fluid comprises: a heating vessel for receiving and holding metal-working fluid for treatment; a heater for heating the metal-working fluid in the heating vessel; an agitator for agitating the metal-working fluid within the heating vessel; an aerator for aerating the metal-working fluid within the heating vessel; and a holding vessel for receiving from the heating vessel and holding treated metal-working fluid. During heating, heated ambient air may be drawn through air inlets and through the fluid agitate and aerate the fluid, thereby ensuring uniform heating and extracting gaseous contaminants. Mist and/or gaseous contaminants may be removed from the airflow prior to its release into the environment. Concentration in the metal-working fluid of at least one metal may be reduced using an using-exchange filter.

Abstract: A transportable drilling fluid cleaning system for removing solids from drilling fluid at a drill site comprises a platform for transporting the system. A bin region on the platform retains solids from the drilling fluid. A settling tank on the platform separates the drilling fluid into an upper fluid fraction having a reduced concentration of solids and a lower solids fraction having a higher concentration of solids as the drilling fluid flows from an inlet chamber for receiving drilling fluid to at least one other chamber. A stand on the platform supports at least one centrifuge for separating the solids from the drilling fluid, the stand being movable between stored and operating positions. The system provides a self-contained unit that is easily transportable on a flat bed truck to provide all the ancillary equipment necessary for solids control at the drill site.

Abstract: A method for treating silicone emulsion waste includes the steps of adding base chemical materials to the silicone emulsion waste in an amount effective to cause separating of the silicone emulsion waste. The added chemicals separate the silicone emulsion waste into silicone oil and an emulsion-free water. The components can be separated, with the silicone oil laden liquid being sent to an incinerator and the emulsion-free water being sent to a wastewater treatment plant. The base chemicals can include sodium hydroxide, sodium carbonate, sodium chloride and/or combinations thereof. To enhance separating of the silicone emulsion waste, the silicone emulsion waste can be heated prior to the addition of the chemicals. Also, by recycling the treated water and adding the same to the silicone emulsion waste and base chemicals separation of the silicone emulsion waste can be enhanced.

Abstract: A filter unit for filtering aquarium water includes a packet having porous filter walls configured for mechanical filtration of aquarium water, a filter medium within the packet, between the filter walls, configured for chemical filtration of the aquarium water, and a block of reticular material juxtaposed with the packet, the block of reticular material being configured for biological filtration of the aquarium water. The packet and the block are secured within a frame to establish an integrated unit for placement within an aquarium water filtration system in which aquarium water is passed through the packet and the block, and the frame is selectively removed from the filtration system and opened for selective removal and replacement of the packet and the block independent of one another.

Abstract: Systems and methods for treating waste water containing biological wastes such as animal waste generated in livestock-raising operations, wherein the waste water is subjected to a series of operations to separate solids from the liquid phase of the waste water and to biologically treat the waste water to break down organic components. The separated solids are stored for further treatment or conversion into useful materials. The treated liquid phase can be put to various uses. In one embodiment, the treated liquid is recycled as flush water for flushing animal waste from an animal barn, whereby little or no liquid phase escapes the system into the surrounding environment.

Abstract: An apparatus and system are disclosed for retrofitting a septic tank from a failed residential wastewater treatment system to permit discharge to a surface water body rather than an underground drainage field. The apparatus is a chlorinating tank, comprised of a tank having an inlet and outlet pipe. An inlet diffuser and an outlet diffuser are posited within the chlorinating tank, the inlet diffuser is in hydraulic communication with the inlet pipe, and the outlet diffuser is in hydraulic communication with the outlet pipe. A filter is posited in the outlet diffuser for filtering any remaining solids in the treated wastewater. A chlorinating device is posited downstream of the filter within the chlorinating tank, for adding dissolved chlorine to the wastewater and for providing a recycle of part of the chlorinated wastewater stream back into the chlorinating tank volume.

Abstract: Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Saline (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is mixed with hydrate-forming gas or liquid to form either positively buoyant (also assisted buoyancy) or negatively buoyant hydrate. The hydrate rises or sinks or is carried into a lower pressure area and dissociates (melts) into the gas and pure water. In preferred embodiments, residual salt water which is heated by heat given off during formation of the hydrate is removed from the system to create a bias towards overall cooling as the hydrate dissociates endothermically at shallower depths, and input water is passed through regions of dissociation in heat-exchanging relationship therewith so as to be cooled sufficiently for hydrate to form at pressure-depth.

Abstract: The coupling of a sewer treatment station to a treatment plant for the flocculation and flotation of water streams and the insertion of said treatment plant for the flocculation and flotation of water streams into a water treatment station. The sewer treatment station is installed upstream from the flocculation and flotation treatment station, in such a way that the outlet of said station is directly connected to the inlet of the flocculation and flotation treatment plant disposed next to the stream bed or next to and interconnected thereto by means of a varying flow canal. The insertion has dynamic introduction of the process of treatment for the flocculation and flotation of fluid beds, all in a closed canal, wherein the flow of secondary streams (E) is dynamically and continuously submitted to flocculation and flotation techniques in an induced flow canal (FE) in the water treatment station.

Abstract: The invention concerns an installation for measuring the concentration in dense granular material in a flow comprising a liquid, a dense granular material and suspended fine particles. The invention is characterised in that it comprises: at least a member for separating the dense granular material from the liquid and the suspended fine particles, at least a device for measuring (12, 12a, 13) at least a parameter representing the amount of separated dense granular material for a specific time interval T. Such an installation may be integrated in a ballasted-floc water treatment system.

Abstract: The invention relates to a system for water purification comprising at least two units, of which the first unit comprises at least one filter unit (1) which consists of a container (2) containing a filter bed (3) of zeolite, and of which the second unit (4) consists of a container (5) enclosing a UV lamp (6). The two units are connected to each other by means of a conduit (7) for conveying water. According to the invention, the filter bed (3) consists of at least 50% by weight natural zeolite with a pore diameter of 0.05-5 nm. The pressure in the filter bed is 1-4 bar and the UV lamp (6) has a light intensity of 300-500 J/m2.

Abstract: A defined current and aeration system for the aeration chamber of an aerobic wastewater treatment plant is disclosed. It includes the release of oxygenation gas or air into the aeration chamber through a diffuser or the like at a position such that the air injected into the tank provides the necessary amount of oxygen for aerobic bacterial digestion of the waste while creating a current or circulation pattern in the chamber that forces every portion of the fluid within the aeration chamber into circulation thus preventing the accumulation of solids as sludge in the wastewater treatment plant.