Abstract: A wastewater orbital treatment system includes an elongated racetrack-like tank containing a central partition wall. A surface aerator is mounted adjacent to at least one end of the partition wall to both aerate and propel the mixed liquor including biomass around the orbital tank. An aerobic zone for BOD and ammonia oxidation is provided in an upper layer of the moving volume of mixed liquor and an anoxic zone for reduction of NO.sub.x from the aerobic zone, by anoxic respiration by the biomass, is provided in a lower layer of the moving volume of mixed liquor. An imperforate horizontal baffle is provided under the surface aerator so as to prevent dissolved oxygen in the aerobic zone from entering the anoxic zone. The NO.sub.x from the aerobic zone is introduced through a free interface of the two vertically displaced zones downstream of the baffle.

Abstract: A system for filtering electric discharge machine dielectric fluid wherein the filtering apparatus is mounted on a moveable platform and attached to the electric discharge machine that needs it's dielectric fluid filtered of foreign matter. The filter system has a plurality of filter casings connected in parallel by each casings inlet and outlet fittings. Each filter casing consists of a tank having a removable lid and a replaceable filter element inside the tank. The fluid flows into the filter tank, through the filter element, into a perforated tube and out of the filter tank into the interconnecting piping system. The filter system is separate from the reserve dielectric fluid tank of the electric discharge machine and can be operated either with the reserve tank system or connected directly to the electric discharge machine.

Abstract: A modular filter drain assembly for a duplex filter having two upright filter canisters each containing a plurality of replaceable cylindrical filter elements includes a sump base pan, liquid impervious, with sides walls embracing the lower portion of the filter canisters and of the entire drain assembly; a stand outboard of each of the filter canisters, each of the stands having vertical legs at corners, a top drain pan near an upper end of the legs and supported thereby, a filter element support pan intermediate the top drain pan and the sump pan, and a platform extending between the stands. The top drain pan has filter element receiving passages near the platform and a drain passage.

Abstract: Bioremediation or other liquid waste biotreatment operations are enhanced by the use of turbulence promoters to create turbulent flow conditions in an oxygen/liquid waste dispersion prior to passage in an improved gas/liquid distribution system for passage through eductors into a lagoon or other holding source of the liquid waste being treated.

Abstract: A manifold structure for connecting rows of cartridges (100) to adjacent like rows of cartridges (100). The manifold structure includes a first fluid passage (153, 183) adapted to pass either feed or filtrate through the body of the manifold structure, a second fluid passageway (169, 197) adapted to be coupled to a first passageway of a filter cartridge to provide fluid communication between the cartridge and the first passageway, a third fluid passageway (167, 199) adapted to be coupled to a second passageway of the filter cartridge to provide fluid communication between the cartridge and the first passageway; only one of the second fluid passageway or the third fluid passageway being enabled for fluid communication at any one time.

Abstract: In a method for filtering a suspension through a stationary filter having a vertical filter element arranged in a pressure vessel and for re-conditioning the filter after filtering, the filtrate is discharged from the bottom of the filter element during the main part of the filtering. After filtering, unfiltered suspension is discharged in a known manner from the pressure vessel later to be returned to the suspension inlet. Thereafter, back-wash is performed with another medium other than filtrate, an outlet for material deposited on the filter element being opened for removal of said material together with the back-washing medium. Preferably, before back-wash, drying of the material deposited on the filter element takes place by means of a gas medium circulating within the filtering plant.

Abstract: A liquid-liquid contacting apparatus is provided having the capacity to control and contain a fire occurring within a separator vessel. Mixing of two liquid phases such as an organic and an aqueous solution may be advantageously conducted when the two phases are supplied at steady flow rates. Variations in the rates of supply of the phases are compensated for by pumping each liquid at a constant flow rate higher than the maximum flow rate provided by the supply, and permitting recirculation of a disengaged phase in the amount necessary to meet the demand of the system. The organic solution having a lower density than the aqueous solution rises within a separator vessel and may be ignited upon its upper surface. By flooding the vessel with a third nonflammable liquid such as water, the liquid level within the vessel is raised until the organic solution is removed by flowing over a channel weir within the vessel and is drained away through a fluid trap.

Abstract: The present invention is a multi-bank, transportable filter unit wherein all connections are mechanical and are isolated from the fluid being filtered.

Abstract: A process and apparatus for microbiological degradation of wastes and for the separation and degradation of organic impurities from waste gases. For the degradation of organic wastes, the individual charges are divided into part charges and alternately are aerated discontinuously in separate rotting vessels until the desired degree of degradation has been reached. For the degradation of impurities in waste gases, the waste gas is alternately passed discontinuously into separate filter units which contain biologically active microorganisms. The waste gases are fed to the particular absorbent until the latter is saturated. Feeding of the waste gases to that unit is then interrupted until the microorganisms colonizing the absorbent of the first filter unit has degraded the pollutants. During the pauses, the waste gas is passed through at least one further absorbent, of the same structure but independent of the first, into a second filter unit, and vice versa.

Abstract: An oil skimming apparatus for use in skimming oil, or hydrocarbons, or pollutants, from the surface of water. The apparatus includes a boat subassembly having left and right pontoons and a deck, an adjustable primary skimming wing portion suspended from the deck by hydraulic cylinders; a channel subassembly having a plurality of channels mounted on the top of the wing portion, a plurality of secondary skimming units respectively disposed at the outlet ends of the channels, and an oil collector and separator and storage subassembly.

Abstract: Disclosed is a parallel filtering circuit comprising at least two filters of a depth layer filtering type connected in parallel to each other in conduits showing different fluid resistances respectively, whereby, even when both the filters are clogged with particles of contaminants, the total flow rate may not decrease sharply, so that a preventive measure can be immediately taken before a fatal situation occurs. An orifice may be connected at its inlet to the outlet of the conduit having a smaller fluid resistance and at its outlet to the outlet of the conduit having a having fluid resistance.

Abstract: The invention relates to an apparatus for promoting the separation and/or contact of two immiscible liquids, said apparatus comprising at least one pipe for feeding an emulsion of the two liquids to an assembly of tubes in each of which there is disposed, in the direction of its length and over at least a portion thereof, a bundle of fibers which are preferentially wettable by one of the two liquids, said assembly being connected to a decanter in which the two liquids separate, the decanter being provided with pipes for the discharge of each of the two liquids.The tubes are bounded by two walls, separated by a substantially constant distance, and by a corrugated element inserted between said walls and alternately in contact with each of them through its corrugations.

Abstract: An apparatus and method for stabilizing sludge such as the sludge produced by municipal waste water treatment plants includes thickening of the sludge to a dry solid content in the range of 3% to 8% before feeding it to at least one comparatively small reactor tank that extends horizontally and has an inlet and outlet adjacent opposite end walls. The system preferably utilizes multiple tanks stacked one above the other and connected in series. The tanks have an in-built mixer that sweeps through the interior of the tank. The mixer is eccentrically mounted so that its mixing members carry the sludge through the uppermost portion of the tank interior and are spaced from the bottom surface of the tank. A sparger is located either in the inlet or in the bottom clearance of the tank to introduce microscopic bubbles of oxygen and ozone into the sludge. A pressure regulating valve controls the flow of the stabilize sludge from the uppermost reactor tank.

Abstract: In order to filter out of the dielectric the microscopically small spherical particles removed by spark erosion [???] machines, a labyrinth filter is provided, containing at least one filter unit with a pressure receptacle (21) loosely filled with filter grains. The intake surface area is relatively small by comparison to the height of the column through which the liquid to be filtered flows, and the filter pump is matched to these two dimensions in such a way as to cause the dielectric to flow through the labyrinth at a rate of at least 2 meters per minute. This leads to the formation of low-pressure zones behind the individual filter grains, in which zones the microscopically small spherical particles removed by the erosion [???] process become trapped.

Abstract: A sewage treatment plant for the purification of waste water includes a chamber container (1) divided by partitions (4) into different sections (6, 7, 8) for pretreatment, biological treatment, chemical treatment, intermediate or retreatment of waste water, each section (6, 7, 8) having several chambers (6a through f, 7a through f, 8a through f) separated from one another by dividing walls (4, 5), chambers (6a through f, 7a through f, 8a through f) being linkable, with regard to inflow technique, in any pre-selectable association depending on the quantity and type of waste water to be treated, and at least one installation for removal of deposited treatment sludge in each of the areas for pretreatment, intermediate treatment and retreatment.

Abstract: Engine lubricating oil is removed from the engine sump, passed through a strainer and pumped at superatmospheric pressure through a heater to raise the temperature to 150.degree.-180.degree. F., a portion of the heated pressurized oil is passed through a filter and to the oil sending unit of the engine while the remainder of the heated pressurized oil is refined by filtering to remove particles above 5 microns and to vaporize and remove vaporizable contaminants; the refined oil being returned at atmospheric pressure by gravity to the engine sump.

Abstract: An apparatus is disclosed for purification and/or sterilization or disinfection of water which has a head with water inlet and outlet openings and a housing secured in water tight relation to said head in which there is a cylindrical filter, preferably of activated charcoal. Between the filter and the housing is an outer water channel communicating with the water inlet so that water entering the apparatus is purified by passing through the filter to an inner channel communicating with the water outlet. Water is sterilized or disinfected by an ultraviolet lamp inside the filter over which water that has passed through it flows to the water outlet. The apparatus may be used in multiples which are connected in series or parallel to obtain a greater degree of filtration and disinfection than obtainable in a single unit.

Abstract: A dry cleaning solvent recovery and filtering system includes a dry cleaning solvent tank containing solvent for use in a dry cleaning machine. A filtration path from the tank includes a centrifugal separator for removing coarse debris and a filter element for removing fine debris from the solvent fluid. The filter element includes a perforated metal cylinder, having an open mouth, with a Teflon.RTM. coated screen forming the interior debris collection surface. A rinsing spray nozzle situated at the mouth of the filter element directs a fluid spray under pressure against the collection surface in the same direction that debris contaminated solvent fluid flows therethrough. The pressure of the fluid spray is sufficient to dislodge fine debris adhered to the collection surface without forcing the debris into the perforations of the filter element.

Abstract: A device for the production of ultrapure water comprising tubes containing water treatment elements joined by two end plates. Grids are disposed between the tubes and the end plates to retain resin or carbon particles. Connector terminations provide a hydraulic connection between a control unit and the tubes. The filter is mounted in the tubes by means of an adapter which also provides a seal between inlet and outlet sides of the filter. Holes are provided in the connector terminations and the end plates to enable selection of the path of fluid in the water treatment elements.

Abstract: A filtration device is disclosed comprising an assembly of three concentric tubular members in longitudinal upright position, having a closure wall at each end, the inner and middle tubular members being perforated over substantially their entire length to permit water flow therethrough, and the outer tubular member being substantially solid over its entire length. An inlet is connected to the inner tubular member at each end, and an outlet is connected to the outer tubular member. The space between the inner tubular member and the middle tubular member is a filtration chamber containing a filtration medium. A dividing device is laterally positioned in the inner tubular member dividing it into upper and lower non-communicating portions, and a dividing device is also laterally positioned in the filtration chamber dividing it into upper and lower non-communicating filtration chambers. The filtration medium is adapted to not pass through the perforations of the inner and middle tubular members.

Abstract: A system for the environmentally-safe, unified treatment of a wastewater effluent is disclosed in which there is provided:a primary treatment component comprising at least one means for the removal of solids,a secondary treatment component comprising at least one filtration field adapted for the secondary and advanced treatment of a wastewater effluent, and means to capture and convey effluent;an advanced treatment component adapted to provide further advanced treatment of a wastewater effluent comprisingat least one effluent accumulation means;at least one dosate storage and dosing means associated with each such effluent accumulation means; andat least one holding means capable of holding the dosed effluent in an anoxic condition;said advanced treatment component being adapted to accumulate, dose and hold the effluent for treatment in an anoxic condition; anda polishing component comprising at least one infiltration field to discharge effluent.

Abstract: A filtering device includes a head intended to be permanently installed in a fluid dispensing machine and a disposable canister therefor. A central chamber is formed in the head which chamber is in communication with an inlet port and an outlet port for receiving an unfiltered liquid and supplying a filtered liquid, respectively. The disposable canister has a flask shaped main body with a flat top and a neck of substantially uniform diameter on the top. The neck fits in the central chamber. A tube extending through the neck defines an annular clearance between the tube and the interior of the neck which annular clearance is in fluid communication with the inlet port. The opening into the tube located at the top of the neck is in fluid communication with the outlet port in the head. A pair of tab receptacles on the head and a complementary pair of tabs on the canister are engageable with one another by 1/4 rotation of the canister to lock the canister to the head.

Abstract: A method and apparatus for reducing chemical oxygen demand levels in water which includes the steps of:(a) mixing the water to be treated with at least one oxygen source;(b) contacting the water with a first, activated alumina catalyst;(c) contacting the water with a catalyst selected from the group consisting of Group VIIIB metals, Group IB metals, or mixtures thereof;(d) reacting chemical contaminants in the water with the oxgen source; and finally(e) contacting the water with an adsorptive material such as activated carbon.The present invention also includes a method and apparatus for regenerating the catalyst in situ by contacting the catalyst with alkaline and acidic aqueous inorganic regeneration solutions.

Abstract: Apparatus for withdrawing liquid samples from liquid/solids media, e.g., phosphoric acid slurries, for the downstream analysis thereof, is comprised of (i) means adapted for insertion into a liquid/solids medium to selectively separate and receive a liquid fraction therefrom, (ii) a liquid storage first chamber in communicating relationship with said separating and receiving means (i), (iii) a liquid sample receiving second chamber in independent, parallel communicating relationship with said separating and receiving means (i) and which comprises means for exteriorly discharging sample contained therein, and (iv) means permitting the filling or emptying of said second chamber (iii) independently of said first chamber (ii).

Abstract: A two phase anaerobic digestion process for production of methane from organic carbonaceous material in which an active acid forming microbial population is maintained in a first acid forming digestion phase and an active methane forming microbial population is maintained in a second methane forming digestion phase, the liquid effluent from the acid forming digestion phase being passed to a first methane forming digester and gaseous product from the acid forming digestion phase being passed to a second separated methane forming digester for production of methane in the first and second methane forming digesters of the methane forming digestion phase. The two separated methane digestion phases provide increased overall methane production.

Abstract: An in-line system is provided for treating acid mine drainage which basically comprises the combination of a jet pump (or pumps) and a static mixer. The jet pump entrains air into the acid waste water using a Venturi effect so as to provide aeration of the waste water while further aeration is provided by the helical vanes of the static mixer. A neutralizing agent is injected into the suction chamber of the jet pump and the static mixer is formed by plural sections offset by 90 degrees.

Abstract: A machine for cleaning drilling muds by removing entrained solids and impurities and returning cleansed and for recycling. The machine comprises a centrifuge desander operatively connected to a plurality of cooperating conical desilters to remove gases and separate materials of varying densities. Initially muds containing solid materials are pumped at a controlled pressure from the cleaning bed into an initial cyclone chamber, where, under increasing centrifugal force, the processed mud is separated into relatively heavier and lighter components, which are transmitted via separate pathways to twin chambers in the lower level compartment of a particle separating drum. The first chamber of the drum receives heavier materials and transmits them to a large desander cone where the heaviest impurities are removed; the second drum chamber receives the lighter components which are further separated and delivered to a network of desilter cones which output properly cleansed mud.

Abstract: Apparatus and method for filtering contaminated fluids at various locations using at least a first and second filter unit mounted on a mobile base. Each filter unit has a plurality of filter vessels with each of the filter vessels having a plurality of filter elements and dual plate mounting. In each filter unit, the contaminated fluid is first coarse filtered and then fine filtered. Means are provided to by-pass either the first or second filter unit so that the filter elements can be changed or for by-passing both the first and second unit when desired.

Abstract: A system for water treatment includes the steps of superchlorinating the water to a level sufficient to destroy bacterial content in the water very rapidly, passing the water through a sand filter in which the medium includes beads of magnesium hydroxide and subjecting different portions of the filtered water to differing degrees of filtration by an activated charcoal filter, whereby to remove a sufficient proportion of the chlorine added to the water to reduce the residual chlorine to a level sufficient to maintain the water sterile without substantially influencing the taste of the water. Preferably, the sand and charcoal filters are disposed horizontally, and the depths of the filter beds are graded horizontally to provide the differing degrees of filtration to the water.

Abstract: The invention relates to an air-controlled settling apparatus having an air vessel within which is a wall that divides the vessel into air supply and air exhaust ducts. Inlet and outlet valves are mounted within the air supply duct and establishes communication between the settling chambers and the air supply and exhaust ducts. The apparatus construction is distinguished by simple construction and low noise in operation.

Abstract: Two settling tanks are arranged one beside the other and are separated by a walk-in corridor. The settling tanks are defined by four longitudinal walls, one end wall, and two ramps, which are disposed opposite said end wall. Two additional tanks are provided on the opposite side of the end wall. The longitudinal walls carry overflow weirs, which are continued on the outside by discharge troughs, which open into the tank. Owing to the large effective length of the overflow weirs the overflow velocity is low and the settling effect is high.

Abstract: The present invention relates to a device for the catalytic oxidation purification of waste water inside a reaction vessel. The vessel includes a front wall, a back wall, two side walls interconnecting the front and back wall and a bottom. The waste water is admitted into the vessel through admitting means located on the front wall and discharged through discharge means located on the back wall. The vessel is divided into a plurality of compartments each of which includes a pair of risers which are divided by a plurality of partitions to form a plurality of sub-chambers. The partitions include an oscillatable flap or, alternatively, are tilted in a direction opposite to the direction of flow of the water in the vessel. In this manner, entrapment of the catalyst particles is prevented.

Abstract: A decomposing plant for refuse comprises cells which are disposed one next to the other and wherein the material is held by a bottom and by sidewalls. In order to transfer the material from cell to cell, there is provided a transfer unit which can be transported along the series of cells and driven into the cells. The transfer unit comprises a conveyor band capable of passing over a sidewall. From one cell to the next cell and provided with spray nozzles for subsequent moistening of the material.

Abstract: Contactor-separator units of a sub-assembly in which an isotopic exchange between two immiscible phases takes place are associated in m lines and n columns. One of the phases leaving a contactor-separator unit is directly directed to the adjacent contactor-separator unit in the same line, whereas the other phase leaving the same contactor-separator unit, is directed directly to the adjacent contactor-separator unit in the same column. Each of the m lines and n columns is provided with a single pump. The instantaneous flow rates of each phase are substantially equal at the input and the output of each of the contactor-separator units.

Abstract: This relates to a filter unit which is particularly adapted for removing odors, bacteria and certain chemicals from water. The filter may be utilized as an in-line filter although it is preferable that the filter unit be mounted in parallel pairs with there being end plates at the opposite ends of the filter units to form a filter assembly. The end plates not only have required flow passages therethrough, but also function as supports.

Abstract: Process for the purification of water that is polluted with diffuse substances originating from ablation, such as fertilizers, mineral and soil particles, oils, wastes, detergents, and primarily inorganic substances, which might accelerate undesirable entrophication of the receiving waters such as lakes, comprising the steps of introducing the polluted water to be purified into a defined area (e.g. a basin); spreading the water cross-wise to increase its surface area; and extracting the diffuse pollutants by applying a biological treatment by the expedient of at least one group of suitable aquatic plants. An apparatus for performing the process comprises means that provide a flow path for the water; at least one dividing structure that performs the spreading; and at least one aquatic plant region, with at least one plant zone, wherein the plants contribute to the above-mentioned biological treatment. Several optional procedural and structural details are also disclosed.

Abstract: An isotope separation apparatus comprises a plurality of independent developing units, each comprising 2 to 20 adsorbent-packed columns forming a continuous developing circuit or passageway, and the developing units are connected to at least one common main pipe for supplying an isotope mixture solution, a regenerating agent solution, or an eluent solution. Also, in a further embodiment the developing units are connected to common liquid-discharge main pipes.The separation or concentration of isotopes such as uranium isotopes, nitrogen isotopes, boron isotopes, etc., is performed by continuously developing the isotope mixture solution passed through the individual adsorbent-packed columns successively in each developing units.

Abstract: An isotope separation apparatus comprises a plurality of independent developing units, each comprising 2 to 20 adsorbent-packed columns forming a continuous developing circuit or passageway, and the developing units are connected to at least one common main pipe for supplying an isotope mixture solution, a regenerating agent solution, or an eluent solution. Also, in a further embodiment the developing units are connected to common liquid-discharge main pipes.The separation or concentration of isotopes such as uranium isotopes, nitrogen isotopes, boron isotopes, etc., is performed by continuously developing the isotope mixture solution passed through the individual adsorbent-packed columns successively in each developing units.

Abstract: In the ultrafiltration of liquids such as vinegar, wine, etc., the liquid to be filtered is fed from and back to a circulating tank through at least one filtration circuit including at least two serially connected, vertically spaced, non-horizontal filter modules through each of which the liquid flows from top to bottom. Each filter module consists of a pipe enclosing a bundle of capillary tubes of semi-permeable membrane material and having a lateral outlet for filtered liquid. Each two successive filter modules are separated from one another by a fall interval zone through which unfiltered liquid can flow with a negligibly low pressure drop from the outlet of the upper filter module to the inlet of the lower one, and each fall interval zone is so arranged that the pressure drop occurring in the upper one of each two successive filter modules is equalized, to the extent of about 0.5 to 1.

Abstract: Rotationally symmetric fluid distribution cell modules combinable to form stacks for the processing of solutions are disclosed. Each module comprises at least one membrane and/or diaphragm and/or electrode and a plate, the latter having a central aperture and a plurality of fluid distribution ports symmetrically spaced in a configuration about the aperture. Connecting fluid passages lead from at least one of the ports in the plate to the central aperture such that part or all of the fluid introduced into one of those ports will flow into the aperture. In some applications of the modules there will be a second connecting fluid passage leading from the aperture to a second port such that at least part of the fluid introduced into the aperture will flow out the second port.Stacking the plates in combination with different types of electrodes, membranes and/or diaphragms provides a cell stack in which a large variety of fluid treatment processes may be carried out.

Abstract: A filter assembly utilizing a plurality of stackable filter head units which permit parallel flow through filter elements mounted within filter bowls, there being one filter element and filter bowl mounted on each of the stackable filter head units. An improved filter head construction is employed which permits a plurality of substantially identical filter head units to be mounted adjacent each other to provide the desired flow capacity, each of the filter head units being so designed that it can be readily manufactured.

Abstract: A portable machine for regenerative dialysis comprises a dialyzing liquid reservoir in which is immersed a suction duct connected to a heating tube the temperature of which is controlled by a thermal probe pair piloting a temperature adjusting element. The outlet of the heating tube is connected to the suction side of a dialyzing liquid pump having a first and second delivery ducts opening in the dialyzing liquid reservoir wherein are interposed a dialyzer element and a dialyzing liquid regenerating cartridge respectively.

Abstract: A filtering system in which a plurality of filter assemblies are supported in a spaced relation relative to a common header which communicates with each of the assemblies. Each filter assembly consists of a plurality of individual filter units each of which is formed by a perforated tube and a filter material extending around the tube. The fluid to be filtered is drawn through the filter units and the header for passage externally of the system.

Abstract: For on-site, continuous, bulk water purification, a dual-monitored, two-pass system employs two successive banks of mixed-bed, strong-based resin cylinders. Raw water first flows down through a bank of primary cylinders in parallel. The outlets of the primary cylinders are connected in parallel via an overhead carry-over pipe to a smaller bank of polisher cylinders whose outlets are connected in parallel via a final filter to a discharge outlet. Probes monitoring the concentration of impurities are located in the carry-over pipe and following the final filter. The efficient arrangement of cylinders in a van allows easy replacement of exhausted cylinders without interrupting water treatment.

Abstract: The peripheral surface of a coil of a filter web wound about a hollow shaft is covered by a liquid impervious flexible coating, and the outer periphery of a first end of the coil is secured to a supporting disc so that when liquid to be filtered is caused to pass through the coil in the axial direction thereof, the convolutions of the coil near a second end expand radially outwardly to trap contaminants in the spiral gap. Purified liquid collected at the first end of the coil is discharged through the hollow shaft. The filter unit is constructed such that a number of units can be readily connected in series.

Abstract: A water recycle treatment system comprising two main treatment sub-systems for treatment of contaminated water from a plurality of concentrated solutions and rinse baths to separate out the impurities therein. A first sub-system treats less concentrated solutions used for the rinse baths by channeling the flow therefrom to a first neutralizing tank which provides for pH control to produce a mixed output solution having a substantially constant pH factor, which is filtered to remove gross particles, the filtered solution being cooled in a holding tank and passed through a reverse osmosis process and carbon bed to produce clean water. The second sub-system treats highly concentrated solutions obtained from a plurality of chemical processes, mixes them in a second neutralizing tank which is utilized to produce a substantially constant pH output, which is fed to an evaporator to precipitate the metals and salts in sludge and also forms a water vapor output.

Abstract: A modular filter assembly for cleaning and polishing of potable waters including a fabric turbidity removal module and an adsorptive taste and odor removal module. The modules are connected in series so as to have turbidity removal prior to taste and odor removal to extend the operating life of the taste and odor removal module. The turbidity removal module includes a porous, fabric material assembly which is of a rolled or wrapped construction which provides a large filtration area to prevent its clogging prior to the utilization of the adsorptive capabilities of the taste and odor removal module. The turbidity removal module includes a flow grid assembly having inner and outer flow grid to maximize the distribution of the fluid being filtered over the filtration area of the module and to assure lateral flow of the filtered fluid through the module.