Abstract: An apparatus for removing floating and subsurface contaminants from a machine tool coolant bath is disclosed. The apparatus comprises a floating skimmer for collecting floating contaminants from the surface of the bath connected to an oil trap having an imperforate shell with a fluid tight column extending below the interface. A return conduit and a positive displacement pump are in series with the skimmer and oil trap. A submersible pump is disposed in the bath near the bottom for collection of water and water density contaminants and is connected to a remote filter assembly having a housing and a removable filter element. The filter assembly and the oil trap are both accessible without affecting the operation of the machine.

Abstract: Liquid filtering apparatus includes a plurality of reverse osmosis filters for receiving seriatim under pressure a mixture of feed liquid and recirculated concentrate. Feed liquid such as salt water is introduced into the inlet of each reverse osmosis filter to dilute the recirculated concentrate.

Abstract: A drainwater treatment system positionable within the vertical passageway of a drainage system utilizes a catch basin for accepting drainwater which flows downwardly into the drainage system and a filter-supporting section disposed alongside the catch basin. The filter-supporting section accepts drainwater which flows therein from the catch basin and permits drainwater to flow downwardly therethrough. First and second filters containing a hydrophobic material are positioned within the filter-supporting section for filtering contaminants from the drainwater flowing downwardly therethrough, and an overflow is associated with the catch basin and the filter-supporting section through which drainwater is permitted to exit the treatment system and bypass the first and second filters when the flow rate of drainwater into the system exceeds the rate at which drainwater is permitted to flow downwardly through the first and second filters.

Abstract: An apparatus and process for oxygenating a liquid. The apparatus includes a liquid pump fluidly connected to an injector having a liquid inlet forming a nozzle, a liquid outlet and an oxygen inlet therebetween, the injector arranged such that the injector liquid inlet is above the injector liquid outlet, and a downwardly opening first diffuser portion connected to the injector outlet. The first diffuser portion is serially connected to a second diffuser portion located below the first diffuser portion. Liquid being pumped by the pump is conducted downwardly through the injector and the first diffuser portion to the second diffuser portion.

Abstract: A drain water system includes a plurality of containers (7-9) within a building 1 for receiving respective drain waters differing in degree of contamination. A plurality of building 1 having such containers share a main drain water conduit leads to at least two stations (13-15) for receiving the respective drain waterd of differing degrees of contamination. Adjusting apparatuses (including, for example, pumps 17) sequentially discharge the containers depending upon their degree of drain water contamination. During a certain time period, drain waters of the same degree of contamination will be discharged into the main drain conduit and will then flow to a specific station.

Abstract: Effluent from a septic tank is trickled through a first filter canister. The thus filtered effluent is recycled a plurality of times through the same filter canister, further to cleanse the effluent. A small portion of the recycling effluent is directed outward into a drip irrigation system. A second filter canister, not in line with the first canister, also receives some of the recycling, filtered effluent, for plural recycles therethrough, to enhance the filtering process, at the same time that other of the filtered effluent is being recycled through the first filter canister. The filtered effluent from the two canisters are permitted to combine prior to subsequent recycling.

Abstract: The present invention comprises methods and apparatus for biological-processing unit fluid conveyance and pumping systems. The invention teaches methods of reducing fluid flow resistance and reducing pumping requirements for supplying fluid to the biological-processing unit. Some preferred embodiments of the invention are optimized for dialysis machines and dialysis clinics. In some select embodiments the invention is accomplished utilizing two supply legs in fluid parallel communication. A clinic utilizing fluid parallel supply legs has reduced fluid resistance as compared to a clinic utilizing series arranged supply legs. This reduces initial set-up costs, operating costs and time to construct fluid conveyance systems. Other advantages and embodiments are also disclosed.

Abstract: A filtration system for concentrating radioactive debris particulate provides efficient filtration, concentration and transport to collection canisters of radioactive particles from a refueling cavity, spent fuel pool, or other water volume where small particles must be removed from the water. The system includes a flushing pump module that draws contaminated water from a cut zone enclosure. The flushing pump module has a separator that removes large size particulate from the contaminated water. A solid media filter module receives the contaminated water from the flushing pump module and removes medium size particulate from the contaminated water. The solid media filter module has a structure for ejecting the medium size particulate and passing the ejected particulate to a concentrate handling module having a purge tank and a slurry transfer pump. A disposal canister station receives the medium size particulate from the slurry transfer pump and fills disposal canisters for transport and storage.

Abstract: An apparatus and a method for ozone-treating biosludges and of reducing biosludges occurring upon a biological treatment of aqueous organic waste, wherein the apparatus is made up ofa plurality of reactors for effecting the ozone treatment of the biosludge by contacting the biosludge with an ozone-containing gas,biosludge passages for flowing the biosludge to be ozone-treated through all the reactors in series,gas supply means for supplying the ozone-containing gas to each of the reactors,a pressurization means for maintaining each of the reactors under a pressurized condition andstirrers each disposed in each reactor for realizing a nearly equalized ozone absorption rate for all the reactors.

Abstract: A purification apparatus and method for enabling the purification of the lake and pond waters, is installed as a fluidized bed sewage system directly on the raw water area. The apparatus takes in the raw waters in the lake and pond and purifies the water. The purified water is fed back to the raw water area by the pump.With this purification apparatus, the salt materials such as phosphate in the lakes, and the overall area of the waters can be purified while preventing the generation of phytoplanktons.

Abstract: A pathogen reduction system for a sludge treatment process that employees multiple reactors operating in a batch mode to reduce pathogen levels in the sludge while providing a continuous flow of pathogen reduced sludge to a digester. In addition, the present invention entails an efficient heat exchanger for heating and cooling the sludge being treated in the above process. In particular, the heat exchanger is of the counterflow type and includes a helical coil confined in an annular chamber for transmitting one media and wherein the helical coil is spaced so as to form another helical flow channel that is defined by the annular chamber and the helical coil itself. Consequentially, one media is directed through the helical coil while another media is directed through the flow channel that is defined in part by the helical coil.

Abstract: The invention provides a system 10 for treatment and purification of domestic household effluent, and for the elimination within said system of organic solid wastes, comprising elements 12 and 14 for separately collecting first and second constituents of the sewage of a domestic residential unit, lavatory sewage comprising said first sewage constituent, and bath, shower, wash basin, laundry, kitchen sink sewage and the like comprising said second sewage constituent, a first and a second dual-purpose vessel 22 and 24, each vessel having at least one inlet port 18 and 20 and at least one outlet port 26, 28, 30, 32 and being arranged so that during the time period that one of said vessels 22 receives said first sewage constituent and acts as a collector and settling tank, the remaining vessel 24 operates as an anaerobic reaction vessel, the vessel operating as an anaerobic reaction vessel carrying out a decomposition process during which the volume of sludge 34 contained therein is greatly reduced by conversion

Abstract: Water treatment plant having pretreatment means, such as in particular means of desanding, degreasing, physico-chemical pretreatment such as coagulation and flocculation and biological pretreatment, as well as means of separating the solid particles contained in the untreated water, characterized in that the solid/liquid separation means are contained within a construction of circular shape, and the untreated-water supply means as well as at least one of the pretreatment means are incorporated in a structure in the shape of an isosceles trapezoid whose projected apex lies on a diametral axis of the construction of circular shape containing the separation means, whose sides are formed by the two tangents to the circular construction leading from the said projected apex and whose base is tangent to the circular construction at the point of intersection of this construction with the diametral axis.

Abstract: An effluent treatment apparatus, and associated methods of use, are provided for treating in a closed-loop configuration a volume of effluent contained in a holding vessel. The apparatus includes one or more treatment tank units arranged to hold a volume of molecular filtering material capable of removing one or more toxic contaminants from the effluent, al least in part, as the effluent contacts the surface areas of the molecular filtering material within each tank unit. A pump unit is provided to draw effluent from the holding vessel and deliver the effluent to selected tank units to effect treatment. The apparatus further includes fluidic conduit structures to fluidically couple the holding vessel, a pre-filter, the pump, and each selected tank unit.

Abstract: A water purification system which filters particulates from the water and treats organic contaminats with ozone. The incoming contaminated water flow is divided, with half passing through each of two filter and ozone contact systems. Initially, each stream is passed though a sand separation device to remove large high density particulate mater, then through a multi-stage filter arrangement incorporating disposable filter cartridges. Ozone is injected into each stream leaving the filter system. The flow passes through elongated plug-flow tubing to assure optimum water/ozone contact, then enters a multi-compartment secondary contactor having a series of perforated baffle plates through which the water flows to assure complete ozone/water contact. Finally, each stream passes through a final filter stage, then the streams are combined and pass to storage or a purified water outlet.

Abstract: An ion supply unit for a water system which is to have its contents purified includes a tank fed from a main water supply and an electrolytic ion generator including silver alloy electrodes. A pump circulates water from the tank through the ion generator and back into the tank at a rate of at least 1 L/s to gradually ionize the contents of the tank and generate a concentrate of silver-ion-laden water. An injector feeds the concentrate into the water system as required.

Abstract: A dual chemical feeder device treats a fluid simultaneously with two different chemical compositions which may not be wholly compatible. In an exemplary embodiment for application in swimming pools, hot tubs, spas and the like, a chlorinator is combined with a sanitizing canister in a chlorinator/sanitizer to chemically treat the full flow of water through the apparatus with a chlorine-based chemical composition and another chemical composition. In alternate embodiments, the chlorinator/sanitizer is configured as a parallel treatment unit and as a series treatment unit. In the series treatment unit, the full flow through the chlorinator also flows through the sanitizing media in the santizing canister, so that all the water is both chlorinated and sanitized by the chlorinator/sanitizer. In the parallel treatment unit, the flow within the unit is divided into two streams which are separately treated.

Abstract: A portable multi-functional modular water filtration unit having configurable modules that can be adapted to render environmental water potable or to isolate contaminants from groundwater or water from other sources such as backwash from reverse osmosis water purification units (ROWPU) or shower and laundry water ("gray water") such that the water may be recycled or discharged in full compliance with applicable laws. Plural treatment tanks as well as inlet and outlet filters are coupleable via pressure gauge bearing quick connect fittings in series and parallel arrangements, to allow changes of filter elements (for replacement or substitution of a different active material) and to accommodate flow in filtration arrays. The water purification system specifically addresses the changing water purifying needs that arise during troop deployment, training and maneuvers, disaster relief and environmental cleanup.

Abstract: A method and system is provided for producing a commercially usable iron oxide material by treating iron contaminated water. A clean effluent is also produced. Iron contaminated water is sampled to determine a bicarbonate to iron molar ratio. The flow of the water is directed to a collection basin assembly when the bicarbonate to iron molar ratio is at least 2 to 1. Iron oxide material precipitates in the collection basin assembly. The water from the collection basin assembly is directed to a constructed wetland. After a period of time, the iron oxide material in the collection basin assembly can be harvested and used for commercial purposes without excessive further treatment.

Abstract: A waste water system having an embedded separator capable of concentrating activated denitrified sludge, and recycling the denitrified sludge to an anaerobic cell, provides a highly efficient method and apparatus for sewage disposal. The basic system is described in several embodiments which are selected on the basis of the waste water content. The improved system minimizes dilution of mixed liquor, increases hydraulic retention time at the various process points, and conserves energy.

Abstract: A method and plant for the purification of polluted water by the activated sludge method is provided in that a mixture of polluted water and recycled sludge is subjected to biological treatments in at least two treatment zones, and maintaining for a period such conditions in one of the treatment zones that a sludge precipitation occurs therein, supplying in a subsequent period the mixture of polluted water and recycled sludge directly or indirectly to the zone which, during the preceding period, served as a sludge precipitation zone prior to further treatment thereof in one or more treatment zones, and passing the treated water to a permanent clarification zone and separating it into a water fraction and a sludge fraction, at least a part of the sludge fraction being recycled and mixed with polluted water.

Abstract: A process for enriching water with oxygen, wherein water is conducted through a water inlet into a sealed enriching space and through one or more turbulent mixers in the enriching space, open is introduced through an oxygen inlet into the water in the enriching space before passing through the turbulent mixer, and the oxygen-enriched water is recovered. The invention further includes an aerobic process by carrying out a chemical or microbiological reaction in the oxygen enriched water as the reaction medium, and a therapeutic process of carrying out a therapeutic treatment of a body with an agent containing the oxygen enriched liquid as a vehicle. The invention also concerns as apparatus for enriching water with oxygen, having a water inlet, a sealed enriching space containing an oxygen inlet, and one or more turbulent mixers, and an outlet for oxygenated water.

Abstract: The invention relates to a solids and liquids effluent chemically enhanced treatment system comprising: (a) a pump for grinding solids and pumping ground solids and liquid effluent; (b) an inlet for introducing flocculant and coagulants into the solids and liquid effluent and mixing the flocculant with the solids and liquid effluent; (c) a mixing chamber having an inlet connected to an outlet of the pump, the mixing chamber having sufficient length to enable the flocculant and coagulants to fully mix with the solids and liquids effluent and form flocs which settle from the liquid effluent; (d) a settling chamber connected to an outlet of the mixing chamber, the settling chamber promoting laminar flow to the solids and liquid effluent and having sufficient length to enable the flocs in the liquid effluent to settle from the effluent; (e) a mechanical propulsion device for moving the solids and liquid effluent through the length of the settling chamber; and (f) a clarifier chamber connected to an outlet of the

Abstract: Disclosed is a waste water treatment system which includes a water impervious container, a uniform effluent distribution system for distributing effluent in a uniform manner throughout the container, material fill which is placed within the container, an effluent introduction system for introducing the effluent into the material filled container and an outflow mechanism which permits treated effluent to flow out of the waste water treatment system. Also disclosed is a waste water treatment cell system containing a plurality of individual cells for the treatment of the effluent and a system for dumping substantially all of the filtered effluent from the waste water distribution system. Also disclosed is a process for the treatment of waste water using the waste water treatment system.

Abstract: Methods and apparatuses for salvaging blood from a patient are disclosed. A blood salvaging and/or blood processing circuit coupled to a cardiopulmonary bypass circuit, cardiotomy circuit, or directly to the patient comprises a hemocentrator for removing water, fluids, and low molecular weight solutes by ultrafiltration and a sorbent-containing plasma separator for removing a selected solute, such as heparin. A combination device for salvaging blood comprises a closed plasma chamber containing a plasma chamber solution, a hollow fiber plasma-separating membrane for receiving blood and permitting plasma to be transported therethrough into the plasma chamber solution and for refiltering the treated plasma back into the blood circuit, a selective sorbent for contacting the selected solute in the plasma and binding the selected solute, and an ultrafiltration membrane for removing water, fluids, and low molecular weight components from the plasma.

Abstract: A flow-through water purification method and device, the device having an inlet, an outlet, first and second internal chambers, and water purification materials in the two chambers. In one aspect, water flowing through the first chamber does not flow through the second chamber, and water flowing through the second chamber does not flow through the first chamber. The water purification material in the first chamber is restricted from contacting the water purification material in the second chamber. In a preferred embodiment the two materials are a silver-containing material and an oxidizing material such as chlorine, the device being used to treat pool water. Flow regulation means in the form of selectable output orifice areas are disclosed.

Abstract: A materials treatment system which includes filtration and treatment of solid and liquid components of a material, such as a waste material. A filter or substrate assembly is provided which allows liquids to pass therethrough, while retaining solids. The solids are then incinerated utilizing microwave energy, and the liquids can be treated after passing through the filter element, for example, utilizing a treatment liquid such as an oxidant liquid. The filter assembly can also include an exhaust filter assembly which removes solids or particulate matter from exhaust gasses, with the retained solids/particulates incinerated utilizing microwave energy.

Abstract: A method and apparatus for treating contaminated stormwater runoff from roads and adjacent lands. A multi-stage and self-contained integrated module is designed to collect the first flush of stormwater runoff (which contains the majority of pollutants) and to treat the pollutants using sedimentation, filtration and constructed wetlands. The apparatus is mass-produced to provide standardized hydrologic controls, important to the reliability of the constructed wetland component of the apparatus. Raw stormwater enters the central sedimentation chamber of the apparatus which is divided into multiple segments designed to provide a series of sedimentation/filtration chambers. At least one chamber is provided with a removable filter bulkhead. Effluent from the final sedimentation chamber is discharged to the constructed wetland system which surrounds the central sedimentation tank.

Abstract: A device for separating liquids of differing density including a container 10 for the liquid, the container having at least two outlet openings 12, 14. In addition, at least one coalescer element 16 is provided to which the liquid to be separated can be fed. The container 10 and/or the coalescer element 16 and/or additional elements 18, 20 have a modular construction and may be assembled together in any desired sequence.

Abstract: Recycling apparatus for use in a closed-loop waste-treatment system includes components for removal of inert materials. Typically, the system includes a treatment vessel used in conjunction with a clarifier in an internal recycle configuration; clear water from the top of the clarifier is conducted away from the system as treated effluent, while a portion of the biomass settling at the bottom of the clarifier is returned to the head of the treatment vessel through a hydrocyclone and screen arrangement to remove inert content, thereby substantially increasing the efficiency of biological waste-digestion processes.

Abstract: A process and apparatus for biological purification of wastewater resulting in reduction of biological oxygen demand, reduction of suspended solids, and for nitrification, wherein the process involves aerating wastewater in a treatment zone for reduction of biological oxygen demand, transferring the mixed liquor from this treatment zone on an alternate basis to a second or third treatment zone which undergoes an aeration/settle, fill and decant cycle. As the second or third zone is receiving influent, it is being decanted in a modified plug-flow fashion. The alternate treatment zones allow for a continuous discharge of treated effluent during the process. During aeration of the second or third treatment zone, mixed liquor is recycled to the first treatment zone. Sludge is retained long enough to achieve nitrification. This invention is particularly suited for modification of aerated lagoon systems to achieve nitrification with a high degree of efficiency.

Abstract: An improved simulated moving bed separation system is disclosed. The improved novel system is characterized by being provided with rotary valves or check valves or both. The rotary valves are provided at the position where desorbing liquid is introduced, the position where the extract is taken out, the position where the feedstock is introduced and the position where the raffinate is taken out and the rotary valves are intermittently switched on and off, whereby the liquid take out of the unit packed bed preceding the position where the desorbing liquid is introduced is supplied to the circulation pump. The check valves are provided in the fluid flow passage between a unit packed bed and an extract draw-out port positioned in the next unit packed bed in the direction in the next unit packed bed in the direction of fluid flow. Thus liquid flow is smoothly controlled and the more effective separation is realized.

Abstract: A duplex strainer for straining material includes a housing, housing inlet port through which material enters the housing under pressure for straining and an outlet port through which strained material exits the housing. The housing includes a first strainer chamber having the first and second ports in separate fluid communication with the housing. A second strainer chamber includes third and fourth ports in separate fluid communication with the housing. The first port opposes the third port and the second port opposes the fourth port. A valve control structure includes a first three-way ball valve disposed within the housing for controlling fluid flow between the first port, third port and the housing. A second three-way ball valve is disposed within the housing to control fluid flow between the housing, second port and fourth port.

Abstract: A method and apparatus for treating contaminated stormwater runoff from roads and adjacent lands. A multi-stage and self-contained system designed to collect the "first flush" of stormwater runoff (which contains the majority of pollutants) and to treat the pollutants using sedimentation, filtration and constructed wetlands. The apparatus is mass-produced to provide standardized hydrologic controls, important to the reliability of the constructed wetland component of the apparatus.Raw stormwater enters the central sedimentation chamber of the apparatus which is divided into multiple segments designed to provide a series of sedimentation/filtration chambers. Each chamber is divided by a removable filter bulkhead sequenced from coarse to fine sediment sizes. Effluent from the final sedimentation chamber is discharged to the constructed wetland system which surrounds the central sedimentation basin.

Abstract: A filter unit for a modular filter assembly comprises a head (1), said head having a feed chamber (2) and a discharge chamber (3), and a casing (6) surrounding a filter element (4). Fluid flow from the feed chamber to the discharge chamber of said filter unit passes through said filter element. The head (1) is provided with a first inlet opening (21) and a first outlet opening (22) which communicate with said feed chamber (2), and the head (1) is provided with a second inlet opening (31) and a second outlet opening (32) which communicate with said discharge chamber (3).

Abstract: A system for filtering a liquid stream, typically drinking water from a natural source. The system includes a plurality of filter stations, each of which receives at least a portion of the influent liquid flow, passes the flow through a filter and passes the filtered liquid to an affluent line. When the filter has reached its capacity for removing particulate material from the liquid flow, preferably as determined by measurements of pressure drop across the filter media, a small quantity of the clean affluent liquid is passed through the filter in a reverse direction to back flush the filter media, with the flush liquid directed to a waste water line. Back flushing can be accomplished automatically under microprocessor control, using signals from a filter media pressure sensor. With a plurality of parallel filter arrangements, continuous flow to the affluent line is easily maintained, since the back flush cycle is short and all filter sets would not be in the back flush mode at the same time.

Abstract: A filtration system for filtering dope of a solvent-spun fiber manufacturing plant in which dope to be spun flows from a source of supply (10) through a series of filter assemblies (15) (21) (23) to jets (22(b)) of each spinning heads (22). The filtration system comprises, in flow series, a first stage filter assemblies (15) having filter elements with the finest pore size of the series (typically 20.mu.) and a final stage filter assembly (23), immediately upstream of the jets (22(b)) of each spinning head (22). The final stage filter assembly is of the coarsest pore size of the series of filters (typically 80.mu.) and is equal to, or less than, the size of the jet holes (typically 80.mu.). The filter media of intermediate filter assemblies (21) between the first (15) and final (23) stages increase in pore size as one progresses from the first filter assembly (15) to the final filter assemblies (23) along the flow path.

Abstract: Conventional biological processes for treating wastewater include the so-called activated sludge process which is continuous and the sequencing batch reaction (SBR) activated sludge process. The first process requires the use of dedicated, relatively expensive external clarifiers, and the second process is inefficient in terms of treatment volume. A modified sequencing batch reactor process and system enable the efficient, continuous treatment and discharge of wastewater, combing the advantages of the SBR and activated sludge processes. In the present case, wastewater is initially fed in a first direction through a plurality of contiguous cells, the wastewater is subjected at all times to biological treatment in a plurality of such cells and settled in at least one of the cells immediately prior to discharge from the system.

Abstract: A method in which a miscellaneous drain water purifying device having a plurality of separator tanks connected to miscellaneous drain water sources via a change valve, receiving miscellaneous drain water, leaving it stagnant, and separating sedimentation and floating substances and a decomposition tank connected to a plurality of the respective separator tanks and receiving flow-out liquid from the sedimentation separator tanks is used, while one of the sedimentation separator tanks receives miscellaneous drain water and carries out sedimentation separation of sludge, sends out the top level clear water in the quantity equal to the received water quantity to the decomposition tank and carries out purifying treatment, an aeration treatment of the sludge separated from miscellaneous drain water by the previous stage prior to transfer is carried out in the other separator tank which is shut off from the miscellaneous drain water sources via the change valve; such transfer is alternatively repeated at suitable in

Abstract: A method for processing wastes from the machining of ferromagnetic materials in which the wastes are mixed with a washing solution in a first tank and oil or oil-and-water emulsion adhering to the wastes is dissolved. Ferromagnetic components of the wastes are then separated from the washing solution in the first tank by means of a magnetic field, and non-magnetic components are then subjected to a washing in a following second tank. The ferromagnetic components are fed to an additional tank where they are washed again. The separated and degreased components are then filtered out of the washing liquids using suitable filtering apparatus.

Abstract: An anaerobic reaction system for treatment of a continuous flow of wastewater comprises a wastewater inlet, a first anaerobic reactor connected to the inlet, a second anaerobic reactor connected to the inlet and parallel to the first reactor, and a split box between the inlet and the first and second reactor. The split box channels the continuous flow of wastewater to the first reactor and to the second reactor. Effluent empties from the first reactor while wastewater in the second reactor is anaerobically reacted upon and clarified. Alternately, effluent empties from the second reactor while wastewater contained in the first reactor is anaerobically reacted upon and clarified.

Abstract: A fuel management system for blending of an alternative fuel such as waste oil with a conventional fuel and the continuous filtration thereof before delivery to fuel injection system of a conventional diesel engine. The system attaches to the storage tanks of a heavy duty truck using a proportioning device for withdrawing of the fuels from their respective tanks before blending by use of an air operated diaphragm transfer pump. The blended fuel is continuously recirculated through at least one fiberglass filter with a device for metering the final flow to the injection system and the remainder to the storage tanks. The system can remove up to 99.5 percent of the heavy contaminants found in the diesel fuel and alternative fuels.

Abstract: A remote dual filtration system for an internal combustion engine having an external mounting member mounted on the engine for receiving an adaptor through which unfiltered oil is directed from the engine and filtered oil flows to the engine. A remote dual filter mount is mounted in a convenient location remotely spaced from the engine, and hoses are provided for carrying unfiltered oil from the adapter to the remote filter mount, and filtered oil from the remote filter mount to the adaptor. A full flow filter and a partial flow filter having a high filtering efficiency are mounted on the remote filter mount. In order to overcome the greater resistance to the flow of oil in the partial flow filter, a restriction means is positioned in the path of oil flow into the full flow filter whereby oil flow into the partial flow filter is increased.

Abstract: An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful for removing contaminants from industrial waste streams. The cartridge contains features which make it relatively resistant to fouling by solid particles. Additionally, the cartridge has no central void volume. No separate housing for the cartridges is required. In a system embodiment the cartridge has a filtering chamber containing absorbent clay particles confined between porous liquid-permeable retainer means. An upstream cartridge cap and a downstream cartridge cap removably receive the ends of the filter cartridge in a liquid-tight seal. The flow of aqueous effluent to each of the cartridges is individually controlled.

Abstract: The device for purifying a flow of liquid by means of ultraviolet radiation, includes an elongated ultraviolet lamp; a generally tubular inner casing surrounding substantially the lamp, the casing being made of a material that allows transmission of ultraviolet radiation, the casing having an aperture at each end thereof from which the electrical terminals of the lamp protrude; and a generally tubular outer casing surrounding the inner casing and forming with it a flow passage, the outer casing being provided at substantially each of its ends with inlet and outlet for the flow of liquid. Two connectors are disposed respectively at both ends of the device for securing the lamp and the inner casing with respect to the outer casing.

Abstract: A sheet cutting apparatus comprising a sheet feeding table, a cutting table and a take-up table. A blower draws air from the cutting table through filters and also blows air to each of the sheet feeding tables and sheet take-up tables. Sensors are provided to detect air pressure and if a difference in air pressure of a specific level is detected an alarm is sounded. The blower is reversible so that air can be blown through the filters and switching means is provided to switch the reversed air away from the cutting table. Thus, the filters can be cleaned after a certain amount of dust, etc., has been collected.

Abstract: A sheet cutting apparatus comprising a sheet feeding table, a cutting table and a sheet take-up table. Air lines, filters in the lines and air pumps draw air from the cutting table to collect any dust, etc. The air passes through filters, then to the blowers and from the blowers air is directed outwardly to the sheet feeding table and take-up table which lifts the material from the table. First and second pressure sensors are provided to detect the pressure to the blower and when a pressure difference exceeds a specific level an alarm is sounded to provide a warning. Then the filters can be cleaned.

Abstract: An oxidation ditch wastewater treatment and denitrification system is provided, comprising an oxidation ditch, including a central channel, having an inlet end, an outlet end, a bottom and two sidewalls; an aeration channel, having an inlet end fluidly connected to the outlet end of the central channel, an outlet end fluidly connected to the inlet end of the central channel, a bottom and two sidewalls; and a denitrification channel, having an inlet end fluidly connected to the outlet end of the central channel, an outlet end fluidly connected to the inlet end of the central channel, a bottom and two sidewalls; an aerator, positioned in the aeration channel; and at least one circulation device, positioned in the oxidation ditch and adapted to circulate wastewater from the inlet end of the central channel to the outlet end of the central channel, from the inlet end of the aeration channel to the outlet end of the aeration channel, and from the inlet end of the denitrification channel to the outlet end of the de

Abstract: The local reclamation system includes an accumulation tank for a soiled solution. A tank outlet valve selectively allows a flow of the solid soiled solution into the remainder of the system. A blend conduit leads from the outlet valve. An oxidizing supply selectively provides an oxidizing agent to said soiled solution downstream of the outlet valve in the blend conduit. A blend pump receives the soiled solution with oxidizing agent to promote the flow of the soiled solution through the system and a more uniformed disposal of the oxidizing agent throughout the solution. A six stage filter section selectively removes particulate matter. A biologic stage promotes a sterile reclaimed solution and a solution accumulator accumulates and stores the solution. Repeated injections of oxidizing agents occur before filter stage sections and pumps. The reclaimed solution can be reused or discharged without penalty.

Abstract: A grease separation system includes a main grease separator tank [11] which has a plurality of filters [23] suspended along the upper portion of the tank above a bed of grease absorbing material [28]. A perforated pipe [31] extends the length of the floor of the tank and discharges into a grease trap [33]. An admixing tank [52] is also included for admixing a grease absorbing material [60] with the grease [24] collected within the filters and rendering the grease bladeable for disposal into a landfill.