Abstract: A passive filter cell having a basin with a floor and two or more vertical or upright sidewalls forming chute or container having first or left sidewall, second or right sidewall, and third or back sidewall, and fourth or front downwardly curved sidewall, an inlet positioned proximate a top of the fourth or front sidewall and an outlet positioned proximate the top of the third or back sidewall, wherein the floor is configured angled from the fourth or front sidewall to the third or back sidewall, discharge pipe positioned proximate junction between the floor and the third or back sidewall, and lip configured to extend from the top of the third or back sidewall into an interior of the basin.

Abstract: In a wastewater treatment system, a clarifier has a submerged effluent launder, with a sloped, submerged plate that allows clarified liquid to exit through submerged openings. The sloped surface tends to accumulate solids, which can lead to algae growth. Typical internal scum collection system equipment prevents any efficient way to clear the accumulated sludge off the launder surface because of interferences. As disclosed here, a scum discharge area or box is placed external to the clarifier in one embodiment. Scum is wiped from a vertical surface of the launder assembly, above the sloped launder surface, and swept over a scum beach at one position in the clarifier, to drop into a lower trough and the flow out through the clarifier wall to a drop out box or scum discharge area. This allows for a rake-attached, sweeping launder wiper to be moved with the clarifier's rake to remove the accumulation of sludge from the launder's submerged surface, without elaborate moving parts.

Abstract: A floating sludge discharge device for a square settling tank, and belongs to the field of water treatment. In order to solve the problem of scraping of floating sludge in the square settling tank, by disposing a water outlet hole below a liquid level and designing a pulling barrel mechanism that changes its overall gravity by using secondary settlement water, to move up and down to pull a sludge scraping plate to move back and forth, the stretching-out end of the sludge scraping plate of a sludge scraping plate mechanism automatically goes deep into the liquid level and automatically lifts up when it returns.

Abstract: A scum removal system for use with a wastewater treatment clarification tank containing wastewater is provided and includes a debris intake conduit, a debris discharge conduit, and a pump article. The pump article is configured to be in flow communication with the debris intake conduit and the debris discharge conduit, wherein the pump article and debris intake conduit are configured to generate a suction within the debris intake conduit and wherein the debris intake conduit is configured to be located proximate the wastewater. Additionally, the debris intake conduit is sloped downwardly at a debris intake conduit angle ?, and the second discharge conduit is sloped downwardly at a debris discharge conduit angle ?.

Abstract: A connection collar for a water treatment skimmer apparatus includes a body comprising a first material and defining a first circular hole and a bushing comprising a second material disposed within the first circular hole, the bushing defining a second circular hole. The first material is different than the second material and the first circular hole circumscribes and is concentric with the second circular hole, according to various embodiments. The water treatment skimmer apparatus may include a support bar, the connection collar rotatably coupled to the support bar, and a skimmer blade coupled to the connection collar.

Abstract: The present invention is directed to a clarifier for water treatment including a plurality of planar inclined sheets including a flexible polymeric material. Each sheet includes a hydrophobic surface. The present invention is also directed to a clarifier that includes at least one module, each module including: a plurality of vertically-oriented supports and a planar inclined sheet including a flexible polymeric material tensioned between the plurality of vertically-oriented supports. The present invention is also directed to a water collection system of a water treatment system including: a collection trough configured to receive liquid and a buoyant member configured to support the collection trough.

Abstract: Wastewater or effluent treatment systems and methods that employ filtering skimmers and/or beaches for separating water from solids and/or other wastes are provided. In some embodiments, the systems include: at least one tank defined by a bottom wall and at least one side wall; a beach including a ramped surface disposed near a side wall of the tank, the ramped surface having a base end disposed at a first elevation relative to the bottom wall of the tank, and a top end opposite the base end at a second elevation relative to the bottom wall of the tank, the second elevation being greater than the first elevation; and a skimmer disposed in the tank that is configured to move material at a surface of the tank toward the beach, wherein (a) at least a portion of the skimmer, (b) at least a portion of the ramped surface of the beach, or (c) at least portions of both the skimmer and the ramped surface of the beach includes a filter material.

Abstract: Methods, systems, and apparatus for automatically skimming swimming pools with a pool cover attachment. In one aspect, an apparatus includes a skimming element holder; a skimming element connected to the skimming element holder; a base member connected between the swimming pool cover and the skimming element, where pivot of the base member pivots the skimming element holder and the skimming element; and a skimming guide connected to the base member, where the swimming pool cover defines a swimming pool plane; the base member automatically actuates the skimming element through the swimming pool plane, and immediately before ending the traversal along the swimming pool plane, the base member again automatically actuates through the swimming pool plane opposite to the previous direction of automatic pivot of the base member.

Abstract: A method of subsiding foam resulting from an industrial process and moving it in a predetermined direction on the surface of an industrial-process liquid includes establishing a foam-displacement direction and a foam-displacement path. At least two fluid-spray sources from which a foam-subsiding fluid can be ejected are arranged serially above the industrial-process liquid and foam accumulating thereon. The fluid-spray sources are oriented and caused to eject foam-subsiding fluid such that foam impacted by foam-subsiding fluid ejected from the first fluid-spray source is wetted, partially subsided and displaced in the foam-displacement direction toward the spray being ejected from the second fluid-spray source by which the foam is further wetted, subsided and displaced in the foam displacement direction.

Abstract: In a device and a process for purifying water which is contaminated with sulphate ions and heavy metal ions, the water is collected in a water reservoir and a substance having basic activity in water is fed to the water reservoir in such a manner that a precipitant having heavy metal ions is precipitated from the water, wherein at least a subquantity of water is taken off from the water reservoir and is separated into pure water which is substantially freed from sulphate ions and heavy metal ions and dirty water which is enriched with sulphate ions and heavy metal ions. The dirty water is at least in part recirculated to the water reservoir, as a result of which a concentration of sulphate ions in the water reservoir is achieved such that a precipitant having sulphate ions is precipitated from the water.

Abstract: A sedimentation device for separating a material mix, preferably plastic flakes, including a sedimentation basin configured to receive the material mix and a liquid, for example water; an inlet configured to introduce the material mix and/or the liquid into the sedimentation basin; an outlet configured to remove sediment from the sedimentation basin; at least one stilling plate within the sedimentation basin configured as an ultrasonic oscillating element. The invention moreover relates to a method for removing sediment from a sedimentation device.

Abstract: A spraying means is arranged on the scum-flowing wall surface side of wall surfaces forming a scum inlet of a scum discharging mechanism. The spraying means sprays pressured water upward along the wall surface on the scum-flowing side from when a part of the scum inlet is submerged in water until the scum begins to flow into the scum inlet. As a result, even large lumps of scum exceeding 10 cm in thickness (diameter) may be lead smoothly into a pipe by the pressured water, and the amount of discharged water accompanying scum discharge may be reduced to 1/20 to 1/30 than by a conventional scum removing apparatus.

Abstract: A system for cleaning and maintaining a vault includes a vault that may have equipment submerged in water. The vault includes a floor, at least one wall, and a cover that collectively define a vault interior. In some versions there is contaminated water in the vault that is at least one foot above the lowest point on the vault floor. In some versions, the water may be 12 to 14 feet above the lowest point on the floor. A portion of the floor may slope toward a vacuum head that is indirectly coupled with a source of suction. In some versions, at least the vault floor is lined with a liner that has a low coefficient of friction and is corrosive resistant. The source of suction may be a vacuum hose of a vacuum truck.

Abstract: The circular clarifier cleaning system includes a mainframe to which all various components are attached for the prevention of growth and accumulation of the algae and debris. The components within the system include gravity-driven, horizontal and vertical sweeping chains. The outer trough wall, V-notch weirs, baffle plate wall, and inner baffle plate wall are all cleaned utilizing a rotating chain system device. Two main drag chains are used to clean the effluent trough and the overflow in the overflow wall after the V-notch weirs. An individual chain is utilized as a “garland” to clean to the V-notch weirs at the overflow. The circular clarifier cleaning system is driven by an existing skimmer arm found on all secondary clarifiers.

Abstract: A method and exhaust arrangement in the removal of surface scum. An exhaust arrangement is used existing in connection with a liquid basin. The exhaust arrangement includes a first surface chute arrangement for removal of surface scum utilizing an overflow arrangement, belonging to the first chute arrangement and being based on a continuous flow for overflowing the surface scum in at least two successive phases, from the fluid basin into a primary space in the fluid basin and from the primary space into a secondary space in the fluid basin, from where overflow is finally exhausted from the liquid basin utilizing an exhaust assembly for the surface scum. A second surface chute arrangement removes liquid processed in the liquid basin.

Abstract: The circular clarifier cleaning system includes a mainframe to which all various components are attached for the prevention of growth and accumulation of the algae and debris. The components within the system include gravity-driven, horizontal and vertical sweeping chains. The outer trough wall, V-notch weirs, baffle plate wall, and inner baffle plate wall are all cleaned utilizing a rotating chain system device. Two main drag chains are used to clean the effluent trough and the overflow in the overflow wall after the V-notch weirs. An individual chain is utilized as a “garland” to clean to the V-notch weirs at the overflow. The circular clarifier cleaning system is driven by an existing skimmer arm found on all secondary clarifiers.

Abstract: This invention discloses a method and system for washing a sedimentation device in a water treatment system using ultrasonic waves. The system includes an ultrasonic transmitting device for transmitting the ultrasonic of a predetermined power and transmitting frequency to the sedimentation device, a carrying device positioned inside or outside of the water treatment system for moving the ultrasonic transmitting device over the sedimentation device. The carrying device may include an operation track, a moving car body erected over the operation track, a driving device, and a car body position detection and control device. The effects of the invention are greatly better than that of manual washing with high pressure water. The consumption of water, treatment reagents and manpower can be decreased, thereby decreasing effectively the cost of water production.

Abstract: An adapter apparatus is provided for use in mounting two oil filter cartridges on an engine. The adapter apparatus includes a manifold for interconnecting the oil filters, and for allowing oil to flow in series through the oil filters and an engine. The manifold includes a metal manifold block having an outer face, an inner face, and at least one lateral edge with a plurality of cooling fins thereon. The manifold block has a plurality of hollow flow passages formed therein to route oil therethrough. Two sleeve fittings are attached to the manifold block, and each of the sleeve fittings has male threads formed on an outer surface thereof. Each of the sleeve fittings threadably receives one of the oil filters thereon. The apparatus also includes inlet and outlet tubes attached to the block body, for respectively routing oil to and away from the adapter apparatus.

Abstract: A flotation apparatus (10) for the separation of solid particles from a suspension with formation of a fraction lacking in solid particles and a fraction rich in solid particles comprises a tank with an inlet (14) for the suspension, with an outlet (16) for the fraction lacking in solid particles, with an outlet (18) for the fraction rich in solid particles, and with at least one block of slats (20) composed of multiple overlapping slats (22), wherein the at least one block of slats (20) has a rear side oriented toward the tank wall and a front side arranged on the opposite side of the block of slats (20). On the rear side of the at least one block of slats, a plate (26) is arranged which extends over at least a part of the rear side of the block of slats, wherein the plate has a plurality of openings which facilitate the penetration of liquid through the plate.

Abstract: A separator for separating F.O.G. from an effluent that contains F.O.G. includes a tank, an inlet to the tank for receiving effluent that contains F.O.G., and an outlet to allow grey water to leave the tank. The tank has a size to enable stratification of a layer of F.O.G. present in the tank on water in the tank, and first and second thermocouples are positioned at differing levels in the tank. Conductors couple the thermocouples to sensors, and differing voltages in the thermocouples can be sensed to determine if the thermocouples are surrounded by F.O.G. or water.

Abstract: A filter apparatus, particularly for filtering coolant/lubricant from a machining, including a filter tank having an inlet for the liquid to be filtered, an outlet for the filtered liquid and a belt of filter medium adapted to circulate within the filter tank and having a top side and a bottom side. The liquid to be filtered is introduced below the bottom side and is discharged between the top side and the bottom side. The filter material of the bottom side separates the unfiltered liquid from the filtered liquid and prevents floating particles in the liquid from reaching the outlet for the filtered liquid.

Abstract: The invention relates to support element (4) comprising a main body (6) having a front wall (25) and a peripheral wall (32) projecting away from the front wall. The front wall and the peripheral wall define a housing compartment (33) designed to receive a fluid distribution circuitry cooperating with a treatment unit for defining an integrated blood treatment module.

Abstract: A filter system for filtering water and/or wastewater including a sludge blanket clarifier for removing at least some impurities from influent. The sludge blanket clarifier includes a clarifier compartment in which a sludge blanket is to be formed to remove at least some impurities from influent directed into the clarifier compartment and through the sludge blanket. The clarifier compartment has at least one vertical sidewall extending from a bottom of the clarifier compartment to a top of the clarifier compartment. The clarifier compartment has a cross-sectional area that varies over at least a portion of a height of the clarifier compartment such that the velocity of influent just prior to entry into the sludge blanket is less than the velocity of influent just after entering the clarifier compartment. The sludge blanket clarifier preferably has one or more flocculator modules disposed in the clarifier compartment to aid in flocculation and distribution of influent.

Abstract: The invention relates to an installation for the mechanical purification of liquids, said installation comprising a container for separating suspended matter, and a transporting device for transporting the suspended matter to a discharge point. Said container comprising an inlet and an outlet for the liquid. A collecting chamber for suspended matter is formed in the bottom part of the container. The container for separating the suspended matter comprises at least two other chambers, at least one being embodied as a ventilated chamber and at least one as a non-ventilated chamber. The invention also relates to a method for separating suspended matter from liquids in a container comprising an inlet and an outlet for the liquid, and a collecting chamber for suspended matter in the bottom part thereof. According to said method, the suspended matter is separated in a multi-stage manner. At least one stage is a ventilated stage and at least one other stage a non-ventilated stage.

Abstract: A feedwell assembly for a thickener/clarifier including a feedwell body, at least one feed channel connected at a downstream end to the body, and a plate member disposed in the feed channel for separating froth from an incoming slurry stream to where the separated froth may be dissipated by a liquid spray directed onto the plate member. The plate member may include a planar upstream portion inclined upwardly from an upstream end of the plate member and may further include a planar downstream portion inclined downwardly from a downstream end of the upstream portion. At least one spray nozzle may be disposed above an elevated portion of the plate member so as to direct a liquid spray onto the plate member in a region about the joint, for further dissipating froth guided onto the plate member.

Abstract: A method for removal of surface scum in an apparatus, which includes at least a first surface chute arrangement that exists in a liquid basin and which is meant for removal of surface scum. Surface scum is exhausted by an overflow arrangement belonging to the first surface chute arrangement and being based on a continuous flow, with which surface scum is overflown in at least two successive phases. Also an arrangement for removal of surface scum operating according to the method.

Abstract: In order to provide a device for treating a fluid containing solids which has been flushed back from a reversible flow filter, comprising a sedimentation device for separating solids from the flushed back fluid by a process of sedimentation in a sediment collecting region which enables solids to be removed in a manner free from filter-aids and which exhibits as small a degree of fluid loss as possible, it is proposed that the sediment collecting region is arranged to be subjected to a positive pressure and/or a negative pressure in order to remove residual fluid from the sediment collecting region.

Abstract: This invention discloses a method and system for washing a sedimentation device in a water treatment system using ultrasonic. The system includes an ultrasonic transmitting device for transmitting the ultrasonic of a predetermined power and transmitting frequency to the sedimentation device. The system may further include a carrying device positioned inside or outside of the water treatment system for moving the ultrasonic transmitting device over the sedimentation device. The carrying device may include an operation track, a moving car body erected over the operation track, a driving device, and a car body position detection and control device. The carrying device drives the ultrasonic transmitting device to perform a reciprocating scanning movement above the sedimentation device so that the ultrasonic is transmitted substantively evenly to the surface of an inclined tube or a corrugated plate. The effects of the invention are greatly better than that of manual washing with high pressure water.

Abstract: The improved circular secondary clarifier of the present invention requires less surface area and low HRT and provides efficient solids-liquid separation. The improved clarifier has better SS and BOD reduction and provides high under flow solids concentrations, as compared to conventional secondary clarifiers. The improved clarifier is even capable of treating wastewaters containing low MLSS concentration. One of the biggest advantages of improved clarifier is that it does not require a separate sump cum pump house as it removes the settled sludge using suction mechanism thereby reduces capital and recurring cost. Further, it provides natural flocculation, which is essential for agglomeration of solids and increases particle size referred to as ‘floc’ and eliminates provision for a separate flocculation facility thereby reduces capital and recurring costs.

Abstract: Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a stream comprising mixed liquor suspended solids and fixed growth solids to a high rate clarification stage, forming a clarifier effluent, a first waste activated sludge stream, and a return waste activated sludge stream. The high rate clarifier effluent stream then flows to a membrane stage that includes a membrane media, producing a membrane reject (retentate) stream and a treated effluent (permeate) stream. Optionally, the methods include routing a screened raw wastewater to an anaerobic and/or aerated anoxic stage and introducing a gas comprising oxygen to the wastewater during the aerated anoxic stage, and optionally allowing the product of this stage to flow to an aeration stage prior to the high rate clarification stage.

Abstract: A chip discharge system with a fluid dispersing means which inhibits clogging, which has a simple structure, which can spray out a uniformly-spreading flow, and which can adjust the momentum of dispersing flow without requiring an additional device.

Abstract: A method and system for retrofitting an existing water treatment system having one or more biological reactor systems and one or more gravity clarifiers. To retrofit the existing water treatment system, the one or more gravity clarifiers of the existing water treatment system are converted to one or more biological reactors. In addition, one or more high rate clarifiers (HRCs) are added to the existing water treatment system. In some cases one or more high rate clarifiers are added downstream of the converted biological reactors, in other cases one or more HRCs is added upstream of the biological reactors, and in other cases a number of HRCs are added, upstream and downstream with respect to the biological reactors.

Abstract: An upflow bioreactor includes a vessel having an inlet and an outlet configured for upflow operation. A septum is positioned within the vessel and defines a lower chamber and an upper chamber. The septum includes an aperture that provides fluid communication between the upper chamber and lower chamber. The bioreactor also includes an auger positioned in the aperture of the septum. The vessel includes an opening in the top for receiving the auger. The auger extends from a drive housing, which is position over the opening and provides a seal around the opening. The drive housing is adjustable relative to the vessel. The position of the auger in the aperture can be adjusted by adjusting the drive housing relative to the vessel. The auger adjustment mechanism allows the auger to be accurately positioned within the aperture. The drive housing can also include a fluid to provide an additional seal around the shaft of the auger.

Abstract: This application relates to a circular clarifier for separating and removing separable matter, such as suspended solids, from a liquid. The invention may be used, for example, for separating return activated sludge from clarified liquor using a gas flotation process. The clarifier includes a plurality of fluid feed ports for introducing influent into selected treatment cells of the clarifier in a timed sequence, thereby achieving batch flotation of solids or other separable matter in a continuous infeed process. A plurality of spaced-apart, rotating flocculent handling assemblies traverse the treatment cells for sequentially conveying flocculent into spaced-apart, radially extending collection troughs. All of the flocculent handling assemblies may be driven by a single drive means. Each flocculent handling assembly includes a submerged beach and a scraper assembly including a scraper blade which extends upwardly from the beach. The beaches provide a shear plane underneath the surface layer of flocculent.

Abstract: The present invention provides a sludge or the like scraping and collecting apparatus. This apparatus has a whole structure more simplified and can realize a cost-down. Further, it is advantageously installed. The scraping and collecting apparatus comprises a carriage having a main body formed from a single long member constant in section in a front and rear direction. The carrier main body has a front end and a rear end provided with sludge scrapers. These front and rear sludge scrapers are adapted to be able to simultaneously and interlockingly move by a pulling and conveying means through a longitudinally and interlockingly moving member which advances and retreats in parallel with the carriage main body.

Abstract: The invention relates to a method and apparatus for filtering or purifying water.

Abstract: A liquid treating device without any restrictions for a sludge discharge device set above a liquid tank is provided. A cyclone separator adapted to swirl liquid to subject sludge to centrifugal separation from the liquid and precipitate the sludge is connected to the circulating pump adapted to pump up liquid coolant containing the sludge discharged to a liquid tank from a machine tool. An opening/closing valve for sludge discharge is arranged at a discharge port of a sludge pot adapted to condense the sludge precipitated by the cyclone separator. A sludge discharge device to discharge only the sludge to the exterior from a sludge storage tank part adapted to store the sludge and liquid discharged from the sludge pot via the opening/closing valve temporarily is set. A supernatant liquid stored in the sludge storage tank part of the sludge discharge device in the suction side of the pump is recovered.

Abstract: Methods and apparatus for demulsifying oil in water by dilution and impact, and for separation of the oil and suspended solids by dissolved gas floatation, are described. A produced water treating system is also described. The produced water treating system may include a dissolved gas floatation clarifier system, an oil demulsification system, and a separation system. A demulsification subsystem is also described. The apparatus may include a liquid-liquid fluid mixer and a gas generator.

Abstract: For increasing the capacity of a continuously operating sedimentation filtration device, the processing liquid to be cleaned is supplied before or adjacent to the filter body on opposed sides into the sedimentation container. Underneath the filter body, a comparatively high settling chamber is formed and between the filter body and the supply lines a separating plate is provided so that the processing liquid to be cleaned is guided mandatorily into the settling chamber. The cross-sections of the supply lines provided on opposed said are comparatively large so that only minimal flow velocities of the incoming medium will occur.

Abstract: The invention relates to a method of clarifying and/or thickening a solution containing solids i.e. a slurry, and the apparatus for accomplishing this. Using the method and apparatus of the present invention, the slurry to be fed into the clarification or thickening apparatus is distributed evenly into the slurry already in the tank. It is characteristic of the clarification tank now developed that the displacement capacity of the raking system in the tank is the same from the edges of the tank up to the centre. The displacement capacity is measured as being the same as the underflow discharge capacity from the centre of the tank. The displacement capacity can be determined to be the same using rake displacement plates of different heights, according to the distance of the displacement plates from the rake shaft and the number of plates rotating on the same ring-like cross-section.

Abstract: A system, apparatus, and method for treating wastewater having bio-solids therein. The system includes a tank, a wastewater inlet line, an effluent discharge outlet line, and an aeration source. The tank has an upper aeration chamber and a lower clarification chamber separated by a common inclined partition having an opening defined therein. The inclined partition opens into the lower clarification chamber near a bottom of the tank which allows fluid communication between the upper aeration chamber and the lower clarification chamber. The bottom of the tank has a bio-sludge outlet for removal of settled bio-solids. The wastewater inlet line opens into the aeration chamber and an intake end of the effluent discharge outlet line is positioned within the clarification chamber. The aeration source is positioned within the aeration chamber to supply air to the wastewater within the aeration chamber.

Abstract: The present invention is directed to a water treatment tank apparatus. The apparatus is further comprised of a cover section having first and second ends, where the first end is secured to an outer tank wall and the second end positioned over the entire launder channel and radially inwards to a scum baffle and integrated mounting bracket, for preventing light from reaching interior surfaces. The cover is dimensioned to span the width of the launder channel, weir and spillway, and is comprised of a substantially opaque material, to inhibit algae growth. A support flange is provided, coupled to the tank wall, for supporting the first end of the cover section.

Abstract: Device and process for separation of absorbent/floating material from product mixes by means of float/sink separation with a float/sink separator which exhibits a separator tank filled with a liquid separating medium, in which context there are provided devices for generation of a surface flow in the separating medium, which propel the absorbent/floating material as a floating fraction from a pickup point of the product mix to an output point for the floating fraction, along the surface of the separating medium, at such a speed as to inhibit absorption of the separating medium.

Abstract: Device and process for separation of absorbent/floating material from product mixes by means of float/sink separation with a float/sink separator which exhibits a separator tank filled with a liquid separating medium, in which context there are provided devices for generation of a surface flow in the separating medium, which propel the absorbent/floating material as a floating fraction from a pickup point of the product mix to an output point for the floating fraction, along the surface of the separating medium, at such a speed as to inhibit absorption of the separating medium.

Abstract: A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a traveling bridge-type grit removal device supporting a submerged grit pump. The system further includes an elongate grease channel arranged to receive degritted water from the grit channel, and having a plurality of grease skimmer pipes extending across the channel above the water level. The grease skimmer pipes are spaced apart along the length of the grease channel, and each grease skimmer pipe includes a plurality of fluid discharge orifices or nozzles spaced along the length of the pipe and oriented to blow fluid obliquely onto the water surface in the direction of a discharge end of the grease channel so as to move grease floating on the surface to the discharge end.

Abstract: The invention relates to a device and a method for chemically and physically separating solid materials from a suspension using flotation. A rotationally symmetrical flocculation/flow reactor is provided with outlets in the lower part thereof and is arranged in a separating tank. At least one suspension inlet extends eccentrically into said reactor. The supplied suspension is guided into said reactor. The supplied suspension is guided into the upper area of the flocculation reactor via the suspension inlet. A circular flow is thus created which drains off from the flocculation reactor downwards in a tangential and radial manner over the outer circumference into circularly arranged distribution cells which reinforce the tangential component of the suspension flow when said flow is delivered into the separating tank. In prior art, the flow of the mixture consisting of the suspension and air-sacs extends radially outwards.

Abstract: A process, a means of transferring mineable material from any number of sources to a number of devices capable of separating out values from that mineable material. See (FIG. 1) the mineable material enters the hose (1), the hose (1) being under vacuum, and is transferred in a flow of air to the upper portion of a hopper (2). The hopper (2) is also under vacuum. The flow of air leaves the upper portion of the hopper (2) through hose (4), which is connected, to a vacuum blower (5). The mineable material, being heavier than air is deposited in the hopper (2). The mineable material is removed from the bottom of the hopper (2) by means of a variable speed drive screw conveyor (3) and is transferred to a separation device (8). The level of heavy mineable material (6) contained in the hopper (2), along with the mineable material contained in the screw conveyor (3) causes a seal against the force of vacuum and allows the mineable material to enter and be removed from hopper (2) simultaneously if desired.

Abstract: A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a traveling bridge-type grit removal device supporting a submerged grit pump. The system further includes an elongate grease channel arranged to receive degritted water from the grit channel, and having a plurality of grease skimmer pipes extending across the channel above the water level. The grease skimmer pipes are spaced apart along the length of the grease channel, and each grease skimmer pipe includes a plurality of fluid discharge orifices or nozzles spaced along the length of the pipe and oriented to blow fluid obliquely onto the water surface in the direction of a discharge end of the grease channel so as to move grease floating on the surface to the discharge end.

Abstract: Process and equipment for the removal of crud from the interface between aqueous and organic layers in SX settlers in which at least one rotatable auger is positioned at or near the interface to remove crud continuously or intermittently from the interface.

Abstract: This invention primarily relates to means to convey fluid from a moving location to a fixed location formerly achieved by the utilization of such means as a flexible hose. The invention has particular relevance to desludge systems where settled sludge take up means is caused to traverse the floor of a settling tank or vessel and transmit the sludge via a hose to a disposal point. The invention provides improved means replacing flexible hoses and further can provide means to motivate the traveling sludge take up means.