Abstract: An air stripper includes a vessel, a gas delivery tube to deliver a gas into the vessel and a contaminated liquid inlet that provides a contaminated liquid to the vessel at a rate sufficient to maintain a controlled constant level of process fluid within the vessel. A weir is disposed within the vessel adjacent the gas delivery tube to form a first fluid circulation path between a first weir end and a wall of the vessel and a second fluid circulation path between a second weir end and an upper end of the vessel. During operation, gas introduced through the tube mixes with the process fluid and the combined gas and fluid flow at a high rate with a high degree of turbulence along the first and second circulation paths defined around the weir, thereby promoting vigorous mixing and intimate contact between the gas and the process fluid.

Abstract: An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism; the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water; the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism; the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.

Abstract: A water filter-pitcher includes a water pitcher with at least two chambers separated by at least one filter, and an ozone generator to generate ozone for sanitizing at least internal surfaces of said two chambers.

Abstract: A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. A biofilm supported on the membranes occupies between about 40% and 80% of the volume of water to be treated in a reactor. Wastewater treatment processes are described. A process to denitrify water or treat oxidized contaminants comprises introducing hydrogen into an inner volume of the membranes to grow autotrophic organisms in the biofilm near the membrane and heterotrophic organism near the water. Another process is operated as a biomass concentration of at least 10 g/L and up to about 40 g/L to maintain a biofilm having a surface area of over 1000 square meters per cubic meter of tank volume. A hybrid process has suspended biomass and a membrane supported biofilm.

Abstract: A method and system for controlling dissolved oxygen levels in a secondary treatment system of a wastewater treatment facility that can employ a membrane bioreactor in which oxygen introduction into mixed liquor is controlled to prevent bulking and minimize generation of extra cellular polymeric substances. The control is exercised by insuring that dissolved oxygen levels within the mixed liquor do not fall below a minimum system level at which microorganism stress would occur. This is done by setting a minimum dissolved oxygen level control point equal to a sum of the minimum system level and an adjustment factor determined on the basis of oxygen uptake rate and time delays inherent in sensing oxygen levels and changes thereof within the mixed liquor. The minimum system dissolved oxygen level can be continually calculated on the basis of an inferred food to mass ratio that would vary with sensed mixed liquor suspended solids.

Abstract: A system and method includes an aeration subsystem that excites enzymes in the liquid waste passing through the septic system. The aeration subsystem includes a compressor section that compresses the liquid waste. The method includes mixing enzymes into the fluid waste material, compressing the fluid waste material with the compressor, injecting air into the compressed fluid waste material, and determining whether the fluid waste material is at a desired cleanliness, and if not, recirculating the fluid waste material through the compressor.

Abstract: The present invention provides an aeration lateral system designed to be site specific for new septic disposal areas or retro fitting to existing septic disposal areas to break up the biological clogging sludge mat at the interface of the wastewater and imported sand or native soil fill under or adjacent to disposal areas of a typical septic system. The lateral system provides uniform or other site specific distribution of fluids about the bio-mat of a wastewater disposal area, with lateral spacing and hole spacing varying based on the type of disposal area being utilized. The lateral system can also be utilized to provide continuous low volume air supply system to a wastewater disposal area or peat filter module. The air lateral installation includes methods to minimize airflow disturbance of the soil and methods to prevent air leakage.

Abstract: A rapidly installed intermittent flow and storm water treatment method and apparatus employing rapid solids separation and sulfur dioxide chemical dewatering technology to produce disinfected reclaimed storm water with heavy metals removed and diluted nutrients suitable for open stream or land application.

Abstract: A process for treating water that includes ammonium. The water is directed to a biological reactor and the quantity of nitrates formed in the reactor and the quantity of ammonium reduced in the reactor is determined. A ratio of the quantity of nitrates formed to the quantity of ammonium reduced is determined. Further, the percentage of ammonium reduced is also determined. The water in the biological reactor is aerated by injecting oxygen into the reactor where the amount of oxygen injected is a function of the ratio and the percentage of ammonium reduced in the reactor.

Abstract: A novel lagoon aeration treatment system is provided which can be used with existing or new wastewater lagoons to increase the lagoon's treatment efficiency and capacity, and to allow for a continuous, year round discharge of treated wastewater to the environment. The system can be operated in warm and cold climates for treatment of municipal and industrial wastewaters of varying strength and flow rates in a secondary activated sludge treatment process, a tertiary activated sludge treatment process, or an extended aeration treatment process.

Abstract: A method for cleaning waste water is provided whereby the waste water is led through a throughput tank having filler materials to which aerobic microorganisms are adhered and wherein the throughput tank is ventilated with an oxygen-containing gas. As filler materials, materials are used which have a specific weight approximately equal to the specific weight of the waste water whereby the filler materials are suspended in the waste water. The inflow of the waste water into the throughput tank and the ventilation of the throughput tank is affected from bottom of the throughput tank and in such a gas amount that the waste water and the filler bodies suspended therein are mixed and the microorganisms on the filler bodies are supplied with sufficient oxygen. The device has a throughput tank with a tank bottom, a tank wall, wherein the inflow connecting pipe and the ventilation arrangement are arranged on the tank bottom and the outflow connecting pipe is arranged at the upper area of the throughput tank.

Abstract: The invention includes a method for the optimization of the soluble CO2 concentration in the aeration basin of an activated sludge system, which significantly improves the specific growth rate of the nitrifying bacteria. The result is a reduction in capital and energy costs for municipalities. The rate of nitrification is a product of the nitrifying bacteria biomass concentration and the specific growth rate of the bacteria. In the activated sludge system, the biomass concentration is maintained at high concentrations by reducing the wasting rate. The specific growth rate is a function of the ammonium concentration and the environmental conditions. Here, the inventors show that growth of nitrifying bacteria is inhibited when the soluble CO2 concentration is elevated beyond certain parameters. Elevated soluble CO2 concentration also reduces the pH, which also impacts the rate of growth of nitrifying bacteria.

Abstract: In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.

Abstract: A septic aerator with a top end and a bottom end, a first pipe spaced apart from a parallel second pipe, a Tee atop each pipe, a first T-junction joining the two Tee's atop the pipes, an elbow atop each of the Tee's atop the pipes, a collar affixed on each pipe proximal to the bottom end, an air space disposed between the collars and the pipes, a plurality of injection holes disposed within the pipes and, in communication with the air spaces, a Tee's disposed below each of the collars, a second Tee junction connecting the Tee's affixed below the collars, a plurality of inlet holes disposed in each Tee below each collar, an air line disposed between the pipes and extended above the top end, an air Tee connected to the air line, the air Tee in communication with the first collar and the second collar airspaces.

Abstract: A system for producing and supplying a coolant to a filtration sub-system, and for reconditioning and recombining a return flow of used coolant. A main reservoir is in two way communication with the filtration sub-system via a clean coolant outlet and a dirty coolant return. An inlet feeds an untreated water supply to a de-ionization canister. A mixing valve in communication with the inlet recombines a remaining untreated portion of the water supply with the de-ionized portion. A mixing pump intermixes the water supply with a chemical concentrate to produce a coolant delivered to a main reservoir. A volume of coolant is drawn through an outlet from the reservoir and communicates the coolant to a particle filter, a chiller, and prior to outputting to the filtration sub-systems. The used return coolant is filtered and reintroduced to the main reservoir.

Abstract: The invention relates to a device for cleaning fluid media containing particulate matter, particularly from livestock husbandry, by means of ozonization in a closed ozonization container (11) and subsequent separation of the particulate matter portions. A vertically extending hollow cylindrical fixture (17) is disposed in the closed ozonization container (11). The fixture (17) is operatively connected to a rotating agitator shaft (16), wherein agitation means (18, 19) are associated with the agitator shaft (16), and the fixture (17) is equipped with supply lines (22, 23) by means of which ozone can be fed.

Abstract: The present invention relates to biological treatment and devices applicable in this respect. The closed container comprises a first inlet (20) and a first outlet (18), at least one vertically orientated tube (6) arranged in the container (2), the lower end of said tube being raised above the bottom of the container (2), a first gas supply (8) arranged at the lower end of said tube (6) for creating a first circulating flow (F1) of liquid and microfilm carriers through the vertically orientated tube, a second gas supply (16) arranged at the bottom and in the vicinity of the wall of the container for creating a second circulating flow (F2) of liquid and microfilm carriers. The invention additionally relates to a plurality of serially connected containers.

Abstract: Embodiments of a water treatment unit are disclosed. An embodiment of a water treatment unit according to the present disclosure comprises a generally vertical riser having a lower end and an upper end, at least one inlet adjacent the lower end, and at least one outlet adjacent the upper end, a substantially spherical housing surrounding the riser, the housing comprising at least one opening in a lower portion of the housing, the housing enclosing a chamber, a motor coupled to the housing, a shaft coupled to the motor, the shaft extending downward from the motor within the riser, the shaft being in general axial alignment with the riser, at least one propeller coupled to the shaft, and a biomedia material within the chamber.

Abstract: The present invention includes a system for recycling wash water, having a first separator configured to separate solids from wash water, a second separator configured to separate oil from wash water, a bioreactor configured to bacterially consume solids from wash water, a third separator configured to further separate solids from wash water, an oxidation chamber configured to sterilize and oxygenate wash water, an aeration tray configured to further oxygenate wash water, a storage tank configured to store wash water, and a pump configured to pump wash water from the storage tank to the bioreactor. The present invention also includes a process and method associated with the use and function of the system.

Abstract: Method and apparatus discloses a dock having a floatatable aeration system incorporated therein. The dock may be a floating or a fixed pier system having a walkway for users to move about the dock, a plurality of boat berthing slips which may be designed to accommodate one or more boats in each slip, along with individual finger-like docks disposed between each boat berthing area. Incorporated at various locations in the dock is an aeration system that includes aerators having a single or double concaved surface at the top of a fluid intake chamber for diverting aerated fluid away from the enclosure of the aerator.

Abstract: An apparatus for a programmable self sanitizing water dispenser apparatus with a digital controller as well as a programmable method for generating ozone for cleaning the reservoir and the water contained within it. The apparatus includes an anti-spill receiver that houses the controller and that can contain a ozone generator.

Abstract: Method for the removal of organic components from a mixture of organic components and water, characterized in that it comprises the steps of guiding the mixture through at least one vessel (3) in which has been provided an amount of organoclay (17) in at least one removable casing (18) which is permeable to liquids and gasses but not to organoclay particles, or on a supporting structure (28) from where the organoclay particles cannot come off, such that the amount of organoclay particles is at any time part of a removable entity; and of producing a flow through the aforesaid mixture in this vessel (3) by guiding a flow of gas bubbles through this mixture.

Abstract: A low-turbulent aspirating type aerator, introduced into a body of liquid, comprising of: a gas conveyance tube having a gas inlet end and a gas outlet end; a gas-liquid mixture chamber incorporating; an impeller affixed to a rotatable shaft, at the least one gas intake opening and at the least one gas-liquid discharge opening at or near bottom end of gas-liquid mixture chamber. Rotation of the impeller creates a low-pressure zone (vacuum) allowing gas conveyed via gas conveyance tube to come into contact with rotating impeller forming a gas-liquid mixture at the impeller interface wherein bubbles are formed. Gas-liquid mixture chamber confines gas bubbles thereby allowing the action of impeller and liquid shearing force to produce and discharge micro-sized gas bubbles of predominantly less than 0.85 millimeters.

Abstract: A flocculation-magnetic separation is provided which reduces the usage amount of flocculation agents as well as the usage amount of magnetic powders and realizes an improvement in the quality of treated water.

Abstract: A process approach allows economical self-sustained operation of single vessel biotreatment systems for municipal wastewater treatment. The daytime solar powered treatment process is changed during darkness periods to operate the biotreatment system without electric grid powering.

Abstract: A system for treating a fluid in a container. The system includes an included airlift tube and active air input into the tube. The air is supplied by a pump that is external to the tank and sized in accordance with the size of the tank. The system is arranged to promote the generation of suspended growth bacteria. The bacteria are provided by an air supply that is diffused in the tube wherein the air carries naturally occurring bacterial spores. The airlift tube includes one or more inlet ports located below an air diffuser. The tube may be located on the floor of the tank, suspended from the ceiling of the tank or arranged to float within the tank. A plurality of tubes may be used together to treat fluids in containers larger than standard septic tanks. A pH neutralizing device may form part of the system.

Abstract: A method and an apparatus for processing acidic seawater is disclosed, wherein the acidic seawater is firstly mixed with alkaline seawater, and neutralizing seawater after mixing is transferred into an aeration vessel to be aerated. The volume R of the used aeration vessel and the amount of neutralizing seawater which needs to be processed satisfy a measure relationship: R=(0.008?0.3)L, and the amount of the air brown into the aeration vessel Q, R, and L satisfy a measure relationship: Q=(25?85)L/R. The method and apparatus can be used for processing acidic seawater which rinsed the exhaust of the internal combustion engine, and they are particularly suitable for but not limited to ships, well drilling, floating factories and other offshore platforms.

Abstract: Provided is a system for dissolving gas into liquid contained within a body. The system may include a tubular body extending between a bottom end and a top end, a gas diffuser coupleable to a gas source and configured for discharging gas bubbles into the tubular body, and a liquid pump for propelling liquid within the tubular body in a downwards direction, against uprising gas bubbles, where the liquid egresses at the bottom end of the tubular body.

Abstract: A method for treating contaminants includes emitting plural streams of a fluid into a soil formation with the streams having different radii of influences in different directions. A directional microporous diffuser directionally emits microbubbles. Solenoid controlled valves control fluid or air distribution to inlets to provide directional control of bubble emanation.

Abstract: Raw water is made to pass through a raw water supply pipe by opening on-off valves, and by closing on-off valves. Oxygen is supplied to the raw water in the raw water supply pipe by opening an on-off valve of an oxygen supply pipe. The resulting raw water containing organic matter and oxygen passes through the raw water supply pipe and enters a catalyst-packed column, thereby contacting a platinum-group metal catalyst onto which hydrogen is adsorbed. This causes the organic matter in the raw water to contact the platinum-group metal catalyst under the presence of dissolved oxygen and hydrogen which is adsorbed onto the metal catalyst. Accordingly, the organic matter in the water to be treated can be easily removed at high efficiency and with low energy consumption.

Abstract: The invention is a method for treating fluid in a main fluid reservoir, e.g., a pool, spa, or water tank, etc., using ozonated air. A fluid filter is placed in an auxiliary fluid reservoir located in or next to the main fluid reservoir. An ozone generator pumps a combination of ozone and air into the auxiliary reservoir. Fluid in the auxiliary reservoir passes through a filter and back into the main reservoir without the use of any fluid pump. More specifically, a vertical lift tube is placed beneath the auxiliary fluid reservoir so that the open top of the lift tube is within the auxiliary reservoir. Fluid from the main reservoir is fed to the bottom of the lift tube. Ozone and air from the ozone generator is also piped into the lift tube near its bottom. The fluid flows through the filter due to the effect of ozone and air bubbles released by a diffuser at the bottom of the lift tube.

Abstract: Described herein are methods and devices for biologically treating water and/or wastewater. The methods and devices for treating wastewater may be enhanced using an surge lifting device which moves water and/or solids using volumes of air (for liquid transfer and mixing) and the automatic sludge return mechanism, combined with alternating aeration on and off operation to achieve comprehensive nitrogen and phosphorus removal. This surge lifting device can provide occasional surges of water using large bubbles which are able to move great volume of liquid while minimizing dissolved oxygen transfer to the surrounding liquid. Use of the devices and processes herein provides a simple, eloquent approach to wastewater treatment with less operation and maintenance costs than conventional devices and/or processes. The same surge lifting device can also be installed in an anaerobic digester, and use the biogas generated below the device to automatically mix the digester, without external energy input.

Abstract: The rapid deployable packaged wastewater treatment system is a low-energy demanding, portable, rapidly deployable and operational wastewater treatment system utilizing a plastic vessel including an aerobic pretreatment and screening chamber that feeds wastewater to a moving bed biological reactor (MBBR) chamber. Immediately downstream from the MBBR bioreactor is a secondary clarifier, which feeds a media polishing filtration system. The media polishing filtration system then passes the treated water to a UV disinfection system. The entire fully functional system, including the plastic vessel and control room, is self-contained in a military-approved TRICON container. A Programmable Logic Controller (PLC) provides automated control of the system and monitors water levels, wastewater characteristics and system components. The container has access doors to the wastewater treatment control room.

Abstract: Method for the removal of organic components from a mixture of organic components and water having the steps of guiding the mixture through at least one vessel (3) in which has been provided an amount of organoclay (17) in at least one removable casing (18) which is permeable to liquids and gasses but not to organoclay particles, or on a supporting structure (28) from where the organoclay particles cannot come off, such that the amount of organoclay particles is at any time part of a removable entity; and of producing a flow through the aforesaid mixture in this vessel (3).

Abstract: An apparatus for the treatment of faeces, includes a tank (200) for housing faeces that has been subjected to treatment. There is a process vessel (202) in which the faeces is treated and which is located inside the tank (200) having an inlet (204) for feeding faeces into the process vessel (202). A rotary device (300) is provided for stirring the faeces in the process vessel (202) and for introducing oxygen into the faeces, which is operable in two modes of operation at different speeds of rotation. A partitioning member (212) separates the interior of the process vessel in a lower (216) and an upper (218) portion, while at the same time allowing communication between the lower and upper portions. The rotary device (300) is arranged to at least cause a suction of material mainly from the lower compartment in a first mode of operation and into the rotary device.

Abstract: A standing wave in a water current, which is subject to purification, is swirled in the lower mass-exchange chamber in order to create negative pressure along the central axis, the atmosphere air intake and crating of two countercurrents interacting with each other, resulting in a standing wave and oxygenation of the water current. A cylindrical mixing chamber, which is divided into the upper mass-exchange chamber and the lower mass-exchange chamber by dividing walls with a coaxial orifice towards the air-supply pipe and peripheral bypass channel. In the lower mass-exchange chamber, water, which is subject to purification, is swirled and under the negative pressure in the center it intakes air from the air-supply pipe, creating hydrosol and reaction area of ion exchange due to forming of the standing acoustic wave. Part of the processed current is outlet into the volume through a permeable wall in the side surface of the upper mass-exchange chamber.

Abstract: A submersible aeration pump includes a motor housing, an air inlet conduit carried by the motor housing, a pump motor in the motor housing, a rotatable armature drivingly engaged by the pump motor and disposed in air communication with the air inlet conduit and at least one air discharge conduit carried by and disposed in air communication with the armature. Air is drawn from the air inlet conduit, through at least a portion of the armature and is discharged from the at least one air discharge conduit, respectively, by centrifugal force responsive to operation of the pump motor.

Abstract: An apparatus for a programmable self sanitizing water dispenser apparatus with a digital controller as well as a programmable method for generating ozone for cleaning the reservoir and the water contained within it. The apparatus includes an anti-spill receiver that houses the controller and that can contain a ozone generator.

Abstract: A self-propelled apparatus for analyzing a component contained in a fluid medium. The self-propelled apparatus uses kinetic energy of the apparatus to drive a fluid under analysis through the apparatus. This is accomplished by use of a conveyance system that is attached to the analytical system of the apparatus. A sensor system is used to analyze the component collected within the confines of an analysis chamber, a part of the analysis system. The invention also includes a method of using the analytical apparatus.

Abstract: A water treatment unit includes a mixing chamber surrounding the upper end of a riser containing an impeller. Water can be moved from a body of water up through the riser, and out through laterally directed openings into the chamber adjacent to an air inlet. The water moving out the laterally directed openings of the stand pipe, mixes with air drawn in through the air inlet to oxygenate the water, and the oxygenated water exits the chamber into the body of water through one or more water outlets in the lower portion of the chamber due to the head developed by the inflow of water into the chamber. The outward flow of water from the chamber can cause a toroidal or other desired flow of water within the body of water surrounding the water treatment apparatus.

Abstract: The super oxidation, coagulation and flocculation system is applicable to water and wastewater chemical treatment in which oxidation, coagulation and flocculation processes take place in a single vessel. The apparatus and process can be used for treatment of domestic and industrial water and wastewater for removal of organic and inorganic contaminants. The oxidation process can be provided by several oxidizing chemicals such as ozone, hydrogen peroxide, potassium permanganate, chlorine and Ultra Violet Lights, and the coagulation process can be accomplished with several coagulants such as aluminum sulphide, ferric chloride, ferric sulphate. Selection of the chemicals depends on the quality of the water or wastewater to be treated and the treated water quality required, and it covers a wide range of impurities to be removed and specifically difficult to oxidize hydrocarbons and chlorinated organics, and iron, manganese, uranium, arsenic, cyanide, hydrogen sulphide.

Abstract: A device separates ferromagnetic particles from a suspension. The device has a tubular reactor through which the suspension can flow and which has a first region and a second region in the passage direction. The device also has a device for generating a magnetic field along an inside reactor wall. In the second region the tubular reactor has a tailings discharge pipe and a concentrate separation channel surrounding said pipe. The cross-sectional area of the tubular reactor in the second region is larger than that in the first region.

Abstract: A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles.

Abstract: A submersible, self-propelled apparatus for analyzing a component contained in a liquid medium. The submersible, self-propelled apparatus uses kinetic energy of the apparatus to drive a liquid under analysis through the apparatus. This is accomplished by use of a conveyance system that is attached to the analytical system of the apparatus. A sensor system is used to analyze the component collected within the confines of an analysis chamber, a part of the analysis system. The invention also includes a method of using the analytical apparatus.

Abstract: A fine bubble diffusing tube that can generate fine bubbles evenly and uniformly even when the diffusing tube has a long length, a fine bubble diffusing device using such a tube and a submerged membrane separation apparatus are produced. The fine bubble diffusing tube is provided with a cylindrical supporting tube 1, and an elastic sheet 2 with fine slits formed therein, with the elastic sheet 2 being placed to cover the outer circumference of the supporting tube 1, so that, upon supplying a gas to a space between the elastic sheet 2 and the supporting tube 1, the fine slits of the elastic sheet 2 are opened to generate fine bubbles, and the supporting tube 1 has a length L of 1000 mm or more in the longitudinal direction, with gas supply units 4 serving as gas flow inlets being attached to the two ends of the supporting tube.

Abstract: A method of treating a site containing contaminants and apparatus are described The method and apparatus sparges the site with an air/ozone gas stream delivered with a hydroperoxide, which is a substantial byproduct of a reaction of a contaminant present in the aquifer or soil formation with the ozone.

Abstract: The invention relates to a method and device for clarifying water by means treatment of the colloidal structures contained in a liquid and/or a sludge supplied in a continuous flow at a flow rate of QEB=VEB/hour. The flow is sprayed into a chamber (2) under overpressure conditions in relation to atmospheric pressure, said chamber (2) having a volume v<VEB/20, and air (10) being injected simultaneously therein at a flow rate d.

Abstract: A water treatment feed device includes a hopper and a receptacle. The hopper has a granule-receiving compartment defined by an upper hopper portion and a lower V-shaped hopper portion connected to the upper hopper portion. The lower V-shaped hopper portion is fabricated from a porous material having a plurality of pores sized to at least substantially retain conventional water treatment granules therein. The receptacle has a water-receiving compartment with a weir disposed therein to divide the water-receiving compartment into a water inlet sub-compartment and a water outlet sub-compartment with the water inlet sub-compartment sized to receive the hopper loaded with conventional water treatment granules. A water treatment feed system and a method for dissolving conventional water treatment granules in water are also described.

Abstract: A biological wastewater treatment system is provided which is adaptable to small, shop fabricated package plants and large, assembled in place plants, and which can be operated as a secondary treatment, activated sludge process, for suspended solids and BOD removal, or a tertiary treatment, activated sludge process, for suspended solids, BOD, nitrogen and phosphorus removal. The system includes a wastewater pump and an air aspirator-mixer to provide aeration, sludge recirculation and waste, and wastewater recirculation for the secondary and tertiary treatment processes. The aeration system with the air aspirator-mixer transfers oxygen to the wastewater, and is located outside aeration tanks. The wastewater pump and air aspirator-mixer system lends itself to continuous and cyclic aeration and oxic and anoxic treatment processes. The multiple use of the wastewater pump for aeration, recirculation and sludge waste minimizes the number of pumping systems required and eliminates air blowers.

Abstract: Provided is an apparatus for treating by itself an organic waste material which can treat the waste material with steam having a high temperature and a high pressure and which can separate and recover the waste material and a liquid material given by performing the treatment continuously by a simple operation. An apparatus (10) for treating an organic waste material characterized in that it comprises a sealed vessel (12) having a closed space (S1) for holding an organic waste material therein, a steam jet means (14) provided in the sealed vessel (12) for providing a steam jet having such temperature and pressure that the waste material can be carbonized, a discharge port (16) arranged at the bottom of the sealed vessel (12) and having an opening/closing mechanism, and a separating and recovering means (18) for separating the waste material and a liquid material given after the treatment only by direct discharge operation from the discharge port (16) and recovering the waste material and the liquid material.