Abstract: A filter housing having a bracket for attaching the housing to a septic tank outlet port and adapted for fluid flow connection to an outlet port on the housing, contains a removable filter element having an outlet port connected to the outlet port on the housing and an opening in the lower end of the housing for delivering septic tank fluid to the filter, and includes a seal element buoyantly responsive closingly to fluid in a septic tank when the filter housing is mounted in a septic tank, operatively connected to the filter element for closing the open lower end of the filter housing and forming a temporary second filter at the lower open end when the filter element is removed from the filter housing.

Abstract: Polyolefin oil/water separator. An oil/water mist separator for use with exhausts from air compressors, air separators, air receivers, and air dryers, as examples, is described. The separator utilizes fibrous polyolefin strips placed in a hollow receptacle therefor to separate the oil from the water in the mist, the oil being retained on the polyolefin, while the water, now having sufficient purity, may be discharged in conventional sanitary drains. The separator may also be used to separate oil from water from other sources thereof.

Abstract: A process for the removal of corrosive compounds from a fluid stream, comprising the steps of: in an extraction column with an outer steel tube and an inner tube of corrosion resistant material having an open inlet end and an open outlet end and being arranged coaxially with and spaced apart within at least top portion of the outer tube, introducing at elevated temperature at the inlet end of the inner tube the fluid stream and an extraction agent and effecting in the mixed stream of the fluid and extraction agent extraction of the corrosive compounds; introducing into an annular space between the walls of the outer and the inner tube a shell stream of a non-corrosive fluid, thereby absorbing in the shell stream amounts of the corrosive compounds diffusing through the wall of the inner tube; passing the shell stream to the bottom portion of the outer tube; cooling the mixed stream at the outlet end of the inner tube by introducing into the stream a cooling stream; passing the cooled stream to the bottom porti

Abstract: A pipeline strainer having a body defining a rectilinear flow passage between an inlet and an outlet and a cylindrical cavity centrally located therebetween. A removable cover of cup-like configuration is secured in a sealed relation to the body subtending the body cavity in which a dual layered strainer assembly is supported in the flow passage in a sealed relation between an interior surface of the cover and an interior surface of the cavity.

Abstract: A waste water filter for use within a septic tank. The waste water filter comprises a shield including an upstanding peripheral wall, the peripheral wall defining a shield interior within the shield. The shield further includes an inlet opening for allowing the entry of unfiltered wastewater into the shield interior. A filter enclosure is disposed within the shield interior at a spaced apart distance from the shield. The filter enclosure includes an upstanding peripheral wall, a top end, and a bottom end. The bottom end includes a bottom panel for preventing the passage of unfiltered waste water into filter enclosure. The filter enclosure further includes at least one filter surface disposed intermediate the top and bottom ends of the filter enclosure for allowing the passage of water restricting the passage of solids.

Abstract: A septic tank filter system comprises a mounting member adapted for attachment to an interior surface of a septic system tank, at least one open-ended, cylindrical filter housing fixed to the mounting member, and a hollow foraminated filter nested in each filter housing. The filter has a first conduit providing a fluid flow connection between the filter interior and an outlet port in the filter housing. Liquid sewage is filtered during passage from the outside of the filter to its interior. Filtrate flows through the first conduit, then through the filter housing outlet port, thence through the mounting member and finally exits the tank through the outlet pipe in the tank wall. A score line in the filter housing side wall permits ready removal of a section thereof to form an inlet port. Telescoping channel members on the outside of the filter housings allow them to be interconnected with the outlet port of one in fluid flow connection with the inlet port of another.

Abstract: A waste-oil cleaning apparatus includes a processing tank for holding waste-oil, and arranged such that non-oil liquids in the waste-oil settle in the base of the tank. A conduit and valve arrangement is provided for withdrawing the settled non-oil liquids from the base of the tank. The apparatus also incorporates an oil cleaning unit including a pump, a mesh filter and a centrifuge. Waste oil in the tank is cleaned by pumping oil out of the tank and passing the oil sequentially through the mesh filter and the centrifuge after the settled non-oil liquids are withdrawn from the base of the tank.

Abstract: A pump system for a dishwasher including a pump housing defining a pump chamber having an inverted frustroconical shape including an upwardly angled annular outer wall. An impeller is disposed within the pump chamber. An annular soil collection chamber is disposed partially above the pump chamber such that the bottom wall of the soil collection chamber forms the top wall of the pump chamber. Wash liquid is supplied into the soil collection chamber from the pump chamber through an opening provided in the bottom wall of the soil collection chamber located at the upper, peripheral portion of the pump chamber. The upwardly angled annular wall of the pump chamber promotes soil movement into the soil collection chamber by directing soils toward the upper portion of the pump chamber. The soil collection chamber is formed by an annular soil collector housing and a cover.

Abstract: A washing apparatus includes a bubbling wash section for impinging bubbles in washing liquid to a material such as a machined work to be washed so as to remove solids such as sludges and oils adhered to the material to be washed, and a sludge removal and oily water separation section for removing sludges or the like mixed with the washing liquid at the bubbling wash section and for separating oily water in the washing liquid, the washing liquid passed through said sludge removal and oily water separation section being returned to the initial bubbling wash section for circulation. An activated carbon filtration section for connection with the bubbling wash section is optionally provided.

Abstract: A gas baffle for a waste water treatment plant outlet includes a conically-shaped deflector cone and an elongated tubular member affixed to an inner surface of the deflector cone. The elongated tubular member is provided with at least one flow-through opening through a wall of the tubular member and an opening in an opposed end of the tubular member. The opposed end of the tubular member is of a preselected size to be received within the inlet to an outlet tee of a waste water treatment plant.

Abstract: A water treatment apparatus uses a removable, disposable cartridge having an internal mesh structure. A permanent heater heats water fed to the cartridge. Precipitated solids collect on the mesh surface provided temperature and residence time are appropriately maintained. The heat breaks down the bicarbonate hardness of the water thereby depositing carbonates on the mesh surface and heavy metals will be codeposited due to the resultant change in pH. The cartridge has a head-space for collecting entrained gasses such as volatile organic compounds, chlorine and air. Water sterility is achieved by heating the water over an appropriate period of time. Turbidity is removed within the cartridge due to settling induced by the low fluid velocity controlled by a controller and by a filter provided at the outlet of the cartridge. The filter will become blocked when bicarbonate hardness is carried over forcing a user to replace a spent cartridge.

Abstract: A system for treating wastewater using the activated sludge biological process by retaining and degrading biodegradable coarse solids. A receiving well contains both a pre-separator stage and an activation chamber arranged one after the other in a direction of through-flow. The preseparator stage has a sand catcher located at the bottom for receiving undegradable solids. A partition is disposed within the receiving well between the pre-separator stage and the activation chamber. A lower section of the partition is a wall separating the sand catcher from the activation chamber. At least a portion of the upper section of the partition is a screen that is inclined with respect to a vertical line, into the activation chamber by greater than 0.degree. up to 30.degree. to widen a space of said pre-separator stage above the sand catcher.

Abstract: A filter device for use in a waste water treatment system including a filter element of two-piece construction disposed within a filter casing with a fluid chamber therein defined by an outer surface of the filter element and the inner surface of the filter casing. The filter casing has a central opening in the bottom which extends upwardly and is in flow communication with an outlet discharge from the tank. The filter element includes a first filter section having a main body of U-shaped cross-section with opposed outwardly extending L-shaped portions at each terminating end of the U. Each L-shaped portion is provided with a first locking device. A second filter section is of substantially flat configuration with the terminating sides of the second filter section having a second locking device therealong for mating with the first locking device of the first filter section.

Abstract: A liquid filter, such as an oil or gas filter, is provided which has a cup-shaped cylindrical filter housing to be mounted in a vertical orientation, with a releasable cover closing the filter housing. A liquid inlet passage and a liquid outlet passage are provided at the housing. A replaceable, substantially hollow cylindrical filter insert is vertically arranged in the housing. The filter insert being formed of a filter material member arranged between an upper and a lower disc. A collar, which is impervious to solid contaminants removed by the filter material member, extends from the lower disc upwardly along a part of the height of the filter insert, surrounding an outer circumference of the filter insert member. In this manner a collection chamber is formed for the filtered solid particles at the lower disc.

Abstract: Spent solutions from photographic processors are fed into a conduit (18) to which subsequently are added precipitating agents from a first source (22) and flocculating agents from a second source (28); so that, well grown or ripened clumps of flocculated solids are formed along the conduit before being emptied into a gravity collecting vessel and shipping container (38) from which clarified liquids are displaced by a mass (50) of accumulated flocculated solids, typically through a filter (58, 142, 150, 158, 162, 166, 220) for removal of any unsettled fines. Many of the clumps of flocculated solids become enlarged enough to individually extend across and substantially fill a cross-sectional area of the conduit. As a result, the enlarged clumps substantially block passage of and strain from the solution remaining fine particles which then adhere to the clumps.

Abstract: The present invention provides a cardiotomy reservoir for containing blood comprising a housing having a top portion, a bottom portion, and a continuous sidewall portion, the top portion and bottom portion connected to the sidewall portion to form an enclosed reservoir. The housing has a blood inlet, a blood outlet, and an air outlet. The housing also has a trap at the bottom portion of the housing, and the blood outlet is connected to a tube that draws from the trap at the bottom portion of the housing. The housing has a filter interposed between the trap and the inside of the main portion of the housing.

Abstract: An upflow clarifier comprises an enclosure defining a bounded volume for holding liquid. An inlet is coupled to the enclosure, and an outlet is coupled to the enclosure above the inlet. A barrier is provided in the enclosure, between the inlet and the outlet. The barrier has a plurality of apertures therethrough, and the barrier defines an upper compartment above the barrier and a lower compartment below the barrier. A plurality of filter membranes are respectively mounted to the apertures, wherein liquid flowing through the apertures flows through the filter membranes. The filter membranes extend upwardly from the barrier.

Abstract: A filter assembly (10) includes a housing (12) defining a chamber (14). A filter substrate (16) is disposed within the chamber (14) for filtering fluids passing therethrough. The housing 12 includes an inlet (22) disposed in fluid communication with the chamber (14) for allowing flow of fluid into the chamber (14). The chamber (14) defines a flow path between the inlet (22) and filter substrate (16) for perfecting fluid flow therebetween. An outlet (24) is disposed in fluid communication with the chamber (14) for allowing the flow of fluid to exit the chamber (14). A snagging element (26) is disposed within the housing (14) between the inlet (22) and the filter substrate (16) on the flow path for snagging and retaining gelatinous particulate material from the fluid prior to being filtered. A method of filtering gelatinous material from a flow of fluid includes the steps of snagging gelatinous material from the flowing fluid and then passing the fluid through a filter.

Abstract: A device for separating and filtering particles in a flow of contaminated fluid, the device including a casing having an inlet duct fitted with a cyclone separator designed to concentrate centrifugally particles in the inlet flow towards the periphery of the flow, a tubular element mounted in the casing with the upstream end of the element adjacent the inlet duct and having a diameter smaller than the inlet duct so that the substantially clean fluid from the cyclone separator flows into a central flow path within the tubular element and the contaminated fluid from the separator flows into a peripheral flow path between the tubular element and the casing, and a filter mounted in the casing adjacent an outlet duct so that the clean fluid in the central flow path passes through a central passage of the filter to the outlet duct and the contaminated fluid in the peripheral flow path is filtered by the filter to form a filtered flow which mixes with the clean fluid in the central passage whereby the fluid flow rat

Abstract: An upflow clarifier comprises an enclosure defining a bounded volume for holding liquid. An inlet is coupled to the enclosure, and an outlet is coupled to the enclosure above the inlet. A barrier is provided in the enclosure, between the inlet and the outlet. The barrier has a plurality of apertures therethrough, and the barrier defines an upper compartment above the barrier and a lower compartment below the barrier. A plurality of filter membranes are respectively mounted to the apertures, wherein liquid flowing through the apertures flows through the filter membranes. The filter membranes extend upwardly from the barrier.

Abstract: A sewage treatment system is provided, for cleaning a sewage by filtering solid components in the swage through floating filter medium, wherein the filtration performance can be improved and the filtration cleaning can be performed efficiently. The sewage 18 is flowed into the treatment tank 12 in upward-flow, and filtered through the floating filter media layer 22 made of the meshy cylindrical floating filter medium 20 which have smaller specific gravity than the sewage 18. To wash floating filter medium 20, the air is jetted from the air jetting pipe 54 and the revolution flow is generated to scale solid components adhering to filter medium, and then the sewage 18, which has washed the floating filter medium 20, are discharged to the outside of the tank 12 while the air is jetted from the air jetting pipe 56 for full jetting to jet the floating filter media layer 22 in whole.

Abstract: Spent solution from photographic processors are fed into a conduit (18) to which subsequently are added precipitating agents from a first source (22) and flocculating agents from a second source (28); so that, well grown or ripened clumps of flocculated solids are formed along the conduit before being emptied into a gravity collecting vessel and shipping container (38) from which clarified liquids are displaced by a mass (50) of accumulated flocculated solids, typically through a filter (58, 142, 150, 158, 162, 166, 220) for removal of any unsettled fines.

Abstract: A filter for filtering particulates from a particulate-containing fluid stream passing through the filter, contains one or more flow plates, each of the flow plates having (a) one or more primary fluid flow passages; and (b) one or more particulates-collecting, eddy current-forming accumulation chambers communicating with the primary fluid flow passages; wherein the accumulation chambers are not situated in the primary fluid flow passages and, when the accumulation chambers contain particulates, the particulate-containing accumulation chambers do not impede fluid flow through the primary fluid flow passages.

Abstract: An assembly for removing hydrophilic contaminants and a method of removing hydrophilic contaminants such as sodium included in an oil-state liquid using the removing assembly, which is able to remove positively the hydrophilic contaminants such as the sodium included in the oil-state liquid in each process of the plant such as a phenol producing apparatus as well as maintain a certain level of the removing performance for a long duration, consisting of: a coalescing element for coalescing and separating from the oil-state liquid the moisture including the hydrophilic contaminants such as sodium by being penetrated the fiber layer having the characteristics of alkali resistance and solvent resistance, typified by a carbon fiber; a liquid feeding means for feeding and supplying a mixed liquid of the moisture including the hydrophilic contaminants and the oil-state liquid; a water collecting means for collecting the moisture including the hydrophilic contaminants which is coalesced and separated; and a oil colle

Abstract: A system for the reduction and separation of highly emulsified and/or immiscible components mixed in a fluid, particularly useful for treating waste water contaminated with oils and oily emulsions, as from depleted oil wells, vehicle washing stations, and meat rendering plants. The system is operative for reducing the amount of organic and inorganic contaminants, and is particularly suitable for reducing the amount of oil, with oil-consuming microorganisms, and separating oil that is not consumed within the system from the water so that the oil may be recycled and the water discharged into wetlands or sanitary sewers without further treatment. The system comprises a multi-stage, recirculating series of treatment tanks. In a first stage, the fluid is recirculated through a treatment loop where the fluid is aerated and then passed through a coalescer.

Abstract: A leaf skimmer for swimming pools or other reservoirs comprises a base to be mounted over a weir opening, a convexly curved front wall, and an opening, the skimmer capable of being mined to fact one way or the opposite way. It is provided with an inlet fitting which also may be turned to face one way or the other to direct a circulation of the water around the pool and carry leaves and other debris into the skimmer, the pool pump drawing water into the skimmer and pumping it back into the pool via the inlet fitting. The skimmer has a weir plate and non-return flap which may be inserted in the skimmer opening and adjusted to the water level, whichever way around the skimmer is mounted. A separator is provided to separate leaves which have been skimmed into a leaf trap.

Abstract: A separator comprises a cyclone for removing more dense particles e.g. sand and a filter for removing less dense particles e.g. organic material from a liquid e.g. water. The arrangement is such that the filter experiences a shearing/scouring force which assists in preventing blockage.

Abstract: A method for measuring the number of living microorganisms in a specimen which comprises entrapping the microorganisms on a hydrophobic filter after the dyeing thereof, or alternatively dyeing the microorganisms after entrapping them on the hydrophobic filter, removing excessive coloring matter by washing, and then determining the number of the microorganisms by the degree of coloration thereof. A kit for measuring the number of living microorganisms which comprises a hydrophobic filter, a syringe to which the filter is fittable, a coloring matter solution, a cleaning solution, and a color reference table. The present invention enables the rapid and convenient measurement of the number of living microorganisms in the specimen without use of special equipment. In accordance with the present invention, the measurement is usually completed within ten minutes.

Abstract: In a separator for separating a mixture of fluids of different densities into a high density fraction and a low density fraction, the mixture is introduced into a tank which is divided into a plurality of separation chambers and a collection chamber. As the mixture flows through the chambers it is separated into high and low density fractions with progressively more distinct differentials of density. The rate of fluid flow through the separator is controlled in part by the size of the separation chambers and by an automatic electro-mechanical control system. The control system includes several floats suspended within the fluids, wherein the level of at least one float is indicative of the level of high density fraction in the separator, and the level of at least one other float is indicative of the level of the low density fraction in the separator.

Abstract: A refuse collecting frame for a drainage sewer, particularly a frame placed beneath a cover of a sewer drainage opening to accumulate refuse and permit easy disposal of refuse accumulated therein in order to prevent blockage of the sewer. The refuse collecting frame includes a frame body and a refuse collecting basin. The frame body is preferably a rectangular or cubic frame structure having a dimension corresponding to the opening of the sewer drain. A filtering net or a porous board with a plurality of penetrating holes is incorporated at each lateral side and bottom of the frame. A plurality of right-angled hangers are formed at spaced positions along the upper edges of an open upper side of the frame for firmly hanging the frame on a sewer opening by positioning the right-angled hangers on a stepped portion formed along edges of the sewer opening beneath a separate cover.

Abstract: The tank incorporates a sole collector chamber (11) for collecting degradable substances via an intake pipe (14), as well as for collecting waste water via a plurality of inlet orifices (15) provided on said chamber, these orifices having variable diameters and distributed over the height and periphery of said chamber.Application for tanks connected to an underground irrigation system or other infiltration devices.

Abstract: A high pressure/vacuum operated apparatus for sewage and mud disposal includes a crossed duct having four terminals; and a movable tubular filter separably engaged with one terminal of the crossed duct with a flexible tube connected thereto; and an instant germicidal unit coupled to the flexible tube at one end and to a reservoir tank at the other which is associated with a vaccum pump and has an ultrasonic oscillator disposed therein for filtering heavy metal substance; and a reciprocally operated push stick which can detach the mud compressed into a solid block from the movable filter; a sewage discharge pipe connected to the upper terminal of the crossed duct via an inlet valve; one other terminal of the crossed duct being attached with a cylinder having a hydraulically operated piston reciprocally moved in the crossed duct, compressing the sewage mud against the movable tubular filter; a cleaning valve secured to the lower terminal; a filter plate made of high desity concrete or ceramics being secured to

Abstract: A fuel/contaminant separator (10) designed to separate water and contaminants out of fuels used for products for combustion. The contaminated fuel (12) enters the fuel/contaminant separator (10) via the inlet pipe (14) located in the upper portion of the fuel/contaminant separator (10). A curved nozzle assembly (16) located at the periphery of the fuel/contaminant separator (10) cause a centrifugal effect to take place making separation similar to that achieved by elaborate mechanical centrifuges. In the collection section (26), minute particles of water and solid contaminants collect at the perforations of the perforated cone filter (28 or 38) where they accumulate and fall to the bottom of the collection section (26). The lighter fuel particles remain in suspension and flow up the center of the fuel/contaminant separator (10) to the outlet pipe (30).

Abstract: A primary filter for the fuel supply circuit of a combustion device such as a motor vehicle engine which removes particulates and other contaminants from the fuel prior to being passed through a transfer pump. The primary filter of this invention replaces conventional primary filters having replaceable filter elements thereby reducing maintenance requirements. The primary filter includes a generally horizontally extending elongated cylindrical passage having an enlarged cross-sectional area compared to the inlet port, thus causing the fuel velocity to decrease and permitting heavy particulates and contaminants to settle out. Fuel is removed from the top of the primary filter which causes the fuel to undergo a change in direction which further enhances the contaminant separation effect. Contaminants are collected from the lower portion of the primary filter in a collection bowl or remotely located collection tank. Magnetic particles are removed from the fuel using a permanent magnet or electromagnet.

Abstract: A fluid separator apparatus using a cylinder in which a piston is fitted and a conic tank is placed on top of the cylinder. The apparatus functions on the basis of the different densities of the liquids. The lighter liquid placed on top of a heavier liquid will enter into the conic tank first by the upward movement of the piston. As the piston moves upward, the lighter liquid enters into an exit pipe at the top of the conical tank and passes into a container outside of the apparatus. The fluid separator also contains a solid particle stainer and sweeping means to continually clean said stainer. Coloring means are included to permit visual inspection of the separation of the liquids at the various parts of the apparatus.

Abstract: Apparatus for reconditioning water-based, synthetic and semi-synthetic coolants. The apparatus comprises a stainless steel mesh filter for removing larger particulate, a coalescer to agglomerate oil droplets and enable a disk skimmer to remove and transfer the separated oil to an oil reservoir, and an inverted, coolant-driven centrifugal separator to separate the smaller particulate down to one micron or smaller in size. Part of the cleaned coolant is combined with the partially cleaned coolant to enable multiple passes of the coolant to assure removal of the particulate. The coolant is pumped using two double-diaphragm air pumps for best control of flow rate and pressure and for good suction for the size of the pump. A biocide may optionally be added to stabilize the coolant. In addition to being able to separate particulate, the separator has sufficient thrust to partially separate the constituents of the coolant as well.

Abstract: An apparatus for preventing or minimizing spilled fluid cargo in a marine environment, and for recovering that fluid cargo which does spill is disclosed. The apparatus consists of vacuum source can be connected with each hold of a marine cargo vessel and used to evacuate the holds after they are filled with fluid cargo, thereby preventing or minimizing fluid cargo loss due to a breach of the holds. Also disclosed is the use of a vacuum source which is connected to a substantially airtight enclosure, typically a tank or a hold of a marine cargo vessel, and a pickup mechanism with a pickup passage that has one end connected to the tank or cargo hold and a second end connected to at least one pickup nozzle to recover spilled fluid cargo.

Abstract: An oil burner pump that includes a housing having a filter cartridge chamber that has an access opening which is closable by a removable cover. A filter cartridge is removable inserted into the chamber and is securable to the cover to be removed from the chamber when the cover is removed. The cartridge has opposite end portions and filter fabric extended between the opposite end portions, one of the end portions being removably securable to the cover.

Abstract: A fuel filter assembly employs a base which mounts a disposable filter element cartridge. The cartridge includes a dual stage filter system wherein fuel flows axially to a primary filter element for removing particulate matter and coalescing water droplets and axially to a secondary filter stage which functions as a water barrier. The filtered fuel flows axially and exits through an outlet passage in the base. Water may be collected in a sump. The cartridge is retained on the base by a collar which engages against a roll seam structure of the cartridge. In one embodiment the base has a cannister configuration for receiving the cartridge.

Abstract: An apparatus for the recovery of fibrous material from process water used in the manufacture of pulp and/or paper, including recycle fiber facilities. The apparatus involves hydraulic classification in the first stage to separate contaminants having a greater settling velocity than fiber, from fiber and other light contaminants with the same or slower settling velocity of fiber. The second stage of the apparatus involves classification by screening to separate the fine contaminants from the fiber. The degree of classification in each stage is determined by the end use of the fiber recovered.

Abstract: An isolation fluid control device and water cup for use in an automated, random-access, isolation fluid-based, analytical instrument. The cup, in operation, contains two immiscible liquids. The cup is provided with inlets and outlets, and additionally comprises a liquid level control structure and structure operable to permit passage of one liquid therethrough to the substantial exclusion of the other liquid.

Abstract: A fuel filter assembly employs a base which mounts a disposable filter element cartridge. The cartridge includes a dual stage filter system wherein fuel flows axially to a primary filter element for removing particulate matter and coalescing water droplets and axially to a secondary filter stage which functions as a water barrier. The filtered fuel flows axially and exits through an outlet passage in the base. Water may be collected in a sump. The cartridge is retained on the base by a collar which engages against a roll seam structure of the cartridge.

Abstract: An apparatus and method for treating well water to remove dissolved minerals and entrained gases. An aerator is disposed within a well, the aerator being located being the frost line and the water table. Water from the reservoir within the well and/or from the associated pressure tank is directed through the aerator so that the aerator will cause gases such as hydrogen sulfide to be released from the water, and will also cause dissolved iron and manganese to oxidize and precipitate out of the water so that the quality of the water within the reservoir is substantially improved. The water flow through the aerator will preferably be controlled by the operation of a solenoid operated valve which may in turn be operated by a timer to cause periodic recycling of the water through the aerator and back into the reservoir.

Abstract: A novel apparatus removes hydrophobic oil from solid particulates in oily sludge waste such as waste material from oil refineries, drilling fluids or muds brines, and other chemical wastes which have solid particulates contaminated with oil. The process involves separation of different components of the sludge on the basis of their size, density and physio-chemical differences. Coarse particulates are removed with the use of screening systems such as sieve bends or vibro-sieves. Oil is removed from these coarse particulates with water rinsing. Oil is removed from fine particles by gravity separation, which separates the sludge into high and low density fractions. Froth flotation is used to remove hydrophilic materials from the high density fraction.

Abstract: A device for separating the oil from an oil/water mixture collected in the bilge of a marine craft immediately prior to draining water from the craft in order to meet U.S. Coast Guard standards and eliminate or substantially reduce the discharge of pollutants, such as oil, into waterways when the bilge pump of the marine craft is activated in the conventional manner.

Abstract: A filtration system is provided for a dry well in the form of a buffer tank made of concrete to remove sediment and pollutants from water supplied from a header to an inlet pipe in the tank, so that the water exiting from an outlet pipe is free of particulate matter and pollutants. This is accomplished by providing a sediment pit and a baffle at the inlet side of the tank and then passing the water through a multiple stage set of filters having different aperture sizes. These filters remove particles and pollutants from the water as it passes through the buffer tank on its way to a dry well drain pipe attached to the outlet of the buffer tank.

Abstract: A retrofit bearing oil supply filter-control apparatus for a rotating machine is disclosed. The filter-control apparatus may be installed in existing or new bearing oil systems. The apparatus includes a hollow flow-control block having a central cavity therein. The central cavity has an inlet in fluid communication with an oil supply and an outlet in fluid communication with the bearing.The apparatus also includes a removable oil flush deflector inserted in the central cavity. The oil flush deflector is inserted during an oil flush to prevent oil containing damaging particles from reaching the bearing. The apparatus also includes a removable oil filter that is inserted in the central cavity during normal operation. The oil filter catches damaging particles entrained in the oil and prevents them from reaching the bearing.

Abstract: An apparatus for removing a radioactive substance from a molten metal which comprises a cold trap for crystallizing an impurity out of the molten metal; a radioactive substance-adsorbing unit which communicates with the cold trap and in which a radioactive substance-adsorbing material is filled with a specific surface area of at least 10 cm.sup.2 /cm.sup.3 to eliminate a radioactive substance from the impurity; means for heating the molten metal conducted from the cold trap to the radioactive substance-adsorbing unit; and means for controlling the temperature of the heating means by measuring the temperature of the cold trap and radioactive substance-adsorbing unit.

Abstract: A material collector for a fluid container having a bottom drain outlet, such as a swimming pool. The collector includes an open top receptacle provided with a perforate side wall or bottom wall. An imperforate skirt extends outwardly and downwardly from the upper margin of the side wall and has an outer periphery spaced from the side wall for engaging the bottom of the fluid container when the receptacle is spaced above the drain outlet. A dome-shaped cover above the receptacle forms a duct with the skirt to permit material, such as debris, to be swept by the flow of the fluid of the container into the open top of the receptacle where the receptacle collects the material as the fluid continues to flow through the perforate wall of the receptacle and into the drain outlet of the container therebelow. A post or line releasably coupled to the receptacle permits the receptacle and the cover to be lifted together out of the fluid in the container and emptied.

Abstract: An easily transportable water purification device, comprising a closed tank in which a plate separator is arranged, and between the inlet for the water to be treated and the inlet connection of said tank a tube coalescer is included for obtaining coalescence of particles suspended in the water. Said coalescer is a tube wound around the tank, and in particular an elastic hose, providing impact protection of the tank. Inside said tank additional storage chambers can be provided laterally of the plate separator.