From Bottom Of Separator Patents (Class 210/197)
  • Patent number: 10766011
    Abstract: The present disclosure is directed to a blending system including a blending mechanism, wherein said blending mechanism comprises a mixing chamber including at least a submersible motor, at least a high shear mixer, at least an impeller and at least a multistage retention time cup.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: September 8, 2020
    Inventor: Adalberto Mercado Alvarado
  • Patent number: 10384967
    Abstract: Separation processes using osmotically driven membrane systems are disclosed generally involving the extraction of solvent from a first solution to concentrate a solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. Pre-treatment and post-treatment may also enhance the osmotically driven membrane processes.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 20, 2019
    Assignee: OASYS WATER LLC
    Inventors: Nathan T. Hancock, Marek S. Nowosielski-Slepowron, Zachary Helm, Christopher Drover, George Bischoff
  • Patent number: 10323374
    Abstract: An oil skimmer apparatus and method for removing oil from the surface of water, comprising a platform having left and right side walls, a rear wall, a front opening, a floor, and a bottom, one or more ballasts which adjust the platform floor relative to a level of oil on the water surface, wherein the oil flows from the front opening across the floor to the rear wall, a rear location near the rear wall to collect the oil from the platform floor; and a pump connected to the rear location that removes the oil from the rear location to a storage area. The skimmer vessel can work stationary in the water, and does not require a propellor means, as the oil will continue to flow into the skimmer as the oil is pumped out of the rear by the gravity flow to the rear of the vessel.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 18, 2019
    Inventor: Michael A. Fesi
  • Patent number: 10173184
    Abstract: An apparatus and method are disclosed for mixing and pumping solids and fluids and includes use of a blender including: a casing defining a cavity; a drive shaft extending through a casing opening into the cavity; a slinger having an outer edge, a center, a bottom slinger surface, a top slinger surface, and a plurality of slinger blades extending upwardly from the top slinger surface, wherein the slinger is attached to the drive shaft, and wherein the height of the top slinger surface above the bottom slinger surface continuously increases from the outer edge to the center; and an impeller having a bottom impeller surface and a plurality of impeller blades extending downwardly from the bottom impeller surface, wherein the impeller is positioned below the slinger and is attached to the drive shaft.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: January 8, 2019
    Assignee: Schlumberger Technology Corporation
    Inventor: Jonathan Wun Shiung Chong
  • Patent number: 10160678
    Abstract: An upflow continuous backwash deep bed sand filter (UCBF) having a recycle line for returning carbonaceous denitrifying bacteria attached to biomass to the influent of the UCBF. The recycle line returns the biomass to the treatment process at a location upstream of the upflow continuous backwash filter. Further, a liquid level control unit is provided that reduces fluctuations and significant drop in the liquid level upstream of the upflow continuous backwash filter, thereby avoiding or minimizing flow turbulences, air induction, and undesirable wastewater aeration resulting in the need to dose excessive carbon source to remove dissolved oxygen in the aerated wastewater.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: December 25, 2018
    Inventors: John H. Reid, Wade Tanner
  • Patent number: 10150687
    Abstract: In a sludge thickener water/wastewater treatment system, sludge solids are recirculated with a mixer positioned in the influent column or offset from the center column and within the stilling well, in order to produce essentially constant sludge solids concentration in the sludge withdrawn from the thickener. This solves the problem of thickeners producing inconsistent underflow solids concentration and often exhibiting problems with binding of rake arms due to sometimes very high sludge concentrations. Also, dewatering steps that follow thickening typically require a relatively constant solids concentration for efficient operation.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 11, 2018
    Assignee: Ovivo Inc.
    Inventors: Tor Heimdal, Ryan Clark, Scott Hawkins, John Vorwaller
  • Patent number: 10080998
    Abstract: A machine and process for providing a gas liquid mixture are described. The process can include providing a pressurized fluid stream; and subjecting the fluid stream to a series of alternating flow regions that include a plurality of laminar flow regions and turbulent flow regions. The machine can include a flow path from a pressure vessel to an ejection point, where the flow path includes a plurality of alternating flow characteristic regions.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: September 25, 2018
    Assignee: Nano Gas Technologies Inc.
    Inventors: Cliffton Lee Roe, Scott A Fiedler
  • Patent number: 9890354
    Abstract: This disclosure describes a biochemical reactor with a lower divider support structure. The biochemical reactor may include a tank configured to house immobilized carriers and fluid. The biochemical reactor may include a circulation conduit at least partially disposed within the tank. The circulation conduit may include a circulation outlet opening. The biochemical reactor may include one or more vanes disposed proximate to the circulation outlet opening. The biochemical reactor may include a tank recirculation port disposed proximate to a second end. The biochemical reactor may include a tank inlet configured for feeding fluid into the tank. The biochemical reactor may include a tank outlet configured for drawing fluid from the tank. The tank outlet may be disposed proximate to a first end. The biochemical reactor may include a first divider and a second divider. The second divider may include a support structure including a grating configured to withstand variable loads.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: February 13, 2018
    Assignee: MIH WATER TREATMENT, INC.
    Inventor: Peter J. Hall
  • Patent number: 9809791
    Abstract: This disclosure describes a biochemical reactor with a lower divider support structure. The biochemical reactor may include a tank configured to house immobilized carriers and fluid. The biochemical reactor may include a circulation conduit at least partially disposed within the tank. The circulation conduit may include a circulation outlet opening. The biochemical reactor may include one or more vanes disposed proximate to the circulation outlet opening. The biochemical reactor may include a tank recirculation port disposed proximate to a second end. The biochemical reactor may include a tank inlet configured for feeding fluid into the tank. The biochemical reactor may include a tank outlet configured for drawing fluid from the tank. The tank outlet may be disposed proximate to a first end. The biochemical reactor may include a first divider and a second divider. The second divider may include a support structure including a grating configured to withstand variable loads.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: November 7, 2017
    Assignee: MIH WATER TREATMENT, INC.
    Inventor: Peter J. Hall
  • Patent number: 9716020
    Abstract: Disclosed is a substrate liquid processing apparatus including: a first processing liquid supply mechanism provided with a first tank in which a processing liquid is stored and a first nozzle through which the processing liquid stored in the first tank is ejected, and configured to supply the processing liquid to a first surface of a substrate by the first nozzle; a second processing liquid supply mechanism provided with a second tank in which a processing liquid having the same composition as the processed liquid stored in the first tank is stored and a second nozzle through which the processed liquid stored in the second tank is ejected, and configured to supply the processed liquid to a second surface of the substrate by the second nozzle; a processing unit configured to perform processing on the substrate using the processed liquids supplied by the first nozzle and the second nozzle; and a recovery line configured to recover the processed liquids which are supplied to the substrate from the first nozzle a
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: July 25, 2017
    Assignee: Tokyo Electron Limited
    Inventors: Yasuhiro Takaki, Koji Tanaka, Shun Tominaga
  • Patent number: 9695383
    Abstract: The present invention relates to a process for in situ regeneration of spent filter aid including the steps of: a) circulating through a spent filter aid cake in a circulation loop a regenerating oil at a temperature of from 40° C. to 100° C., in a regenerating oil/spent filter aid (v/w) ratio of from 0.3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and c) recovering the regenerated filter aid.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 4, 2017
    Assignee: BUNGE NÖVÉNYOLAJIPARI ZÁRTKÖRUEN MUKÖDO RÉSZVÉNYTÁRSASÁG
    Inventors: Zsolt Kemeny, Stéphane Golinski, Oleg Bereznev, Andrey Makarenko
  • Patent number: 9586186
    Abstract: A machine and process for providing a gas liquid mixture are described. The process can include providing a pressurized fluid stream that includes a mixture of a gas and a liquid; and subjecting the fluid stream to a series of alternating flow regions that include a plurality of laminar flow regions and turbulent flow regions. The machine can include a pressure vessel that includes, above a mid-line, a gas nozzle adapted for the addition of a gas to an interior volume of the pressure vessel and a liquid atomizer adapted for the addition of a liquid to the interior volume of the pressure vessel; below the mid-line, a fluid outlet positioned above a bottom of the pressure vessel and a clean-out port positioned at or adjacent to the bottom of the pressure vessel; and a means for determining a fluid level within the interior volume of the pressure vessel; and a flow path fluidly connected to the fluid outlet, the flow path including a plurality of alternating flow characteristic regions.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 7, 2017
    Assignee: NANO GAS TECHNOLOGIES INC.
    Inventor: Cliffton Lee Roe
  • Patent number: 8986540
    Abstract: A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. A biofilm supported on the membranes occupies between about 40% and 80% of the volume of water to be treated in a reactor. Wastewater treatment processes are described. A process to denitrify water or treat oxidized contaminants comprises introducing hydrogen into an inner volume of the membranes to grow autotrophic organisms in the biofilm near the membrane and heterotrophic organism near the water. Another process is operated as a biomass concentration of at least 10 g/L and up to about 40 g/L to maintain a biofilm having a surface area of over 1000 square meters per cubic meter of tank volume. A hybrid process has suspended biomass and a membrane supported biofilm.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: March 24, 2015
    Assignee: Zenon Technology Partnership
    Inventors: Hidayat Husain, Rocco Mazzaferro, Minggang Liu, Richard Wong, Heather Lossing, Fengshen Fan, Youngseck Hong, Reid Bayly
  • Publication number: 20150060341
    Abstract: A liquid solid separator tank has a motor driven recirculating belt having rollers placed therein processing a mixture of materials. The top belt brings wet materials into a collection trough having overflow weirs disposed externally. These weirs permit overflow liquids to flow down towards a main tank; then, a sump pump reintroduces water back into an influent basin to cleanse the mixture once again. Also, the action of a motor driven auger within the trough forces solids towards a dewatering box attached externally thereto. This box has a motor driven rotating cage mounted on moveable rollers and internally attached removable brushes that act to clean the outer surface of the cage as it moves in addition to a stationary high pressure wash. A shroud channels the influent liquid solid mixture towards a filtered water basin disposed directly underneath the lower belt portion permitting cleansed water to be removed therefrom.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventor: John Christopher Mitchell
  • Patent number: 8951412
    Abstract: A novel lagoon aeration treatment system is provided which can be used with existing or new wastewater lagoons to increase the lagoon's treatment efficiency and capacity, and to allow for a continuous, year round discharge of treated wastewater to the environment. The system can be operated in warm and cold climates for treatment of municipal and industrial wastewaters of varying strength and flow rates in a secondary activated sludge treatment process, a tertiary activated sludge treatment process, or an extended aeration treatment process.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 10, 2015
    Inventor: Jan A. Korzeniowski
  • Patent number: 8940159
    Abstract: The invention includes a method for the optimization of the soluble CO2 concentration in the aeration basin of an activated sludge system, which significantly improves the specific growth rate of the nitrifying bacteria. The result is a reduction in capital and energy costs for municipalities. The rate of nitrification is a product of the nitrifying bacteria biomass concentration and the specific growth rate of the bacteria. In the activated sludge system, the biomass concentration is maintained at high concentrations by reducing the wasting rate. The specific growth rate is a function of the ammonium concentration and the environmental conditions. Here, the inventors show that growth of nitrifying bacteria is inhibited when the soluble CO2 concentration is elevated beyond certain parameters. Elevated soluble CO2 concentration also reduces the pH, which also impacts the rate of growth of nitrifying bacteria.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 27, 2015
    Assignee: University of South Florida
    Inventors: Peter George Stroot, Raymond Anthony Morris
  • Publication number: 20140263006
    Abstract: Treatment of wastewater containing contaminants is provided. More specifically, treating wastewater through capture and recirculation of percolated fluid effluent through and from one or more infiltration field systems is provided.
    Type: Application
    Filed: March 15, 2014
    Publication date: September 18, 2014
    Inventor: David A. Potts
  • Publication number: 20140209523
    Abstract: A method for treating wastewater using a ballasted flocculation technique includes continuously measuring the concentration of suspended solids, organic matter or other impurities in the water to be treated prior to directing the water to be treated to a flocculation tank. Based on this measurement, the amount of ballast necessary to obtain treated water of a predetermined quality is then calculated. In the flocculation tank, ballast and a flocculating reagent are added to the water to form a water-floc mixture. The water-floc mixture is directed to a settling tank where a sludge-ballast mixture is settled. The sludge-ballast mixture is directed to a mixing tank and then to a separator to separate the ballast from the sludge. The separated ballast is directed to the flocculation tank. The separated sludge is directed to the mixing tank when the level of sludge-ballast mixture in the mixing tank is lower than a predetermined level.
    Type: Application
    Filed: December 16, 2013
    Publication date: July 31, 2014
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Philippe Sauvignet, Claus Dahl, Valey Ursel, Celine Levecq, Jean-Francois Beaudet
  • Patent number: 8758608
    Abstract: A continuously flowing, inner circulatory, quasi-fluidized-bed reactor for resin ion exchange and adsorption. The reactor comprises a main body casing, an inclined pipe separator, an outlet weir, an inlet pipe, an outlet pipe, a reducing fluidization tank, a guide plate, a resin regeneration tank, a resin discharge pipe, and a return pipe for regenerated resin and a distributing ejector. The reactor is particularly suitable for advanced treatment of supply water, wastewater, biochemical effluent and reclaimed water by using (magnetic) powder resin.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 24, 2014
    Assignees: Nanjing University, Nanjing University Yancheng Environmental Protection Technology and Engineering Research Institute
    Inventors: Chao Long, Jun Fan, Aimin Li, Chendong Shuang
  • Patent number: 8746464
    Abstract: A fluid separator includes a casing and a tubular main body disposed in the casing and having a central axis, inlet and outlet ends spaced along the axis, inner and outer circumferential surfaces; and drain passage(s) extending radially between the inner and outer surfaces. A collection chamber is defined between the outer surface and the casing and the inner surface defines a central flow passage, such that liquid contacting the inner surface flows through the drain passage(s) and into the collection chamber. A deflector disposed within the flow passage includes a hub located on the central axis with a bore and a plurality of vanes extending radially between the hub and the main body inner surface. Each vane has a first channeling surface facing toward the body inlet and a second channeling surface facing away from the inlet. Recirculation members fluidly connect the collection chamber with the hub bore.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 10, 2014
    Assignee: Dresser-Rand Company
    Inventor: William C. Maier
  • Publication number: 20140144820
    Abstract: The rapid deployable packaged wastewater treatment system is a low-energy demanding, portable, rapidly deployable and operational wastewater treatment system utilizing a plastic vessel including an aerobic pretreatment and screening chamber that feeds wastewater to a moving bed biological reactor (MBBR) chamber. Immediately downstream from the MBBR bioreactor is a secondary clarifier, which feeds a media polishing filtration system. The media polishing filtration system then passes the treated water to a UV disinfection system. The entire fully functional system, including the plastic vessel and control room, is self-contained in a military-approved TRICON container. A Programmable Logic Controller (PLC) provides automated control of the system and monitors water levels, wastewater characteristics and system components. The container has access doors to the wastewater treatment control room.
    Type: Application
    Filed: November 29, 2013
    Publication date: May 29, 2014
    Inventors: DANIEL M. EARLY, SCOTT F. EASTER
  • Patent number: 8721877
    Abstract: An upflow reactor is provided that includes a reactor tank, conduits, a waste water distributor, at least one first flotation separator and an optional second flotation separator for separating reactor water, biomass, and biogas, a collection device, and a gas separator for separating biomass and biogas. The first flotation separator includes one or more gas domes that are connected to the collection device and have outlets, the cross-sectional area or geometry of which can be controlled using movable covers.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 13, 2014
    Assignee: MCB GmbH
    Inventor: Marianne Buchmueller
  • Patent number: 8673142
    Abstract: A system for enhancing an activated sludge process including at least one biological reactor. A weighting agent impregnation subsystem is coupled to the biological reactor for mixing biological flocs and weighting agent to impregnate the weighting agent into the biological flocs to form weighted biological flocs. A weighting agent recovery subsystem is configured to recover the weighting agent from the weighted biological flocs and reintroducing the recovered weighting agent to the weighting agent impregnation subsystem.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: March 18, 2014
    Assignee: Siemens Water Technologies LLC
    Inventors: Steven E. Woodard, Peter G. Marston, Ionel Wechsler
  • Patent number: 8647503
    Abstract: A filter assembly for a fuel delivery system for actuators and fuel control system of an aircraft engine includes a wash flow filter. Fuel flow velocity is increased through the filter through use of a recirculating passage that is effectively achieved through use of an ejector pump. A portion of the pressurized fuel delivered by the main fuel pump is diverted and serves as a motive fluid that scavenges unfiltered flow from downstream of the filter and recirculates or discharges the recirculated flow to an inlet of the filter. This provides increased velocity to maintain sufficient washing of the filter openings.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: February 11, 2014
    Assignee: Eaton Industrial Corporation
    Inventors: Martin A. Clements, Robert Nyzen, John P. Ogger, William T. Flynn
  • Patent number: 8628666
    Abstract: Treatment systems are described which uncouple the solids retention time (SRT) of the recycling bacteria from the wasting bacteria. Elevated recycling bacteria SRTs increase concentrations of nitrifying bacteria in the aeration basin and Anammox bacteria in the anoxic basin, improving nitrification and anaerobic ammonium oxidation. Fluorescence in situ hybridizations were used to identify and determine the abundance of nitrifying bacteria and Anammox bacteria (recycling bacteria) in freshly settled sludge of biological nutrient removal (BNR) secondary clarifiers. An uneven distribution was observed for recycling bacteria in two BNR systems. Settling patterns suggest microcolony formation processes are sensitive to the internal recycle rate, which allow for rapid recycling bacteria microcolony growth by increasing circulation of flocs through the aeration and anoxic basins. Uncoupling the SRT enhances aeration and/or anoxic basin utilization and reduces the overall hydraulic residence time.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: January 14, 2014
    Assignee: University of South Florida
    Inventor: Peter G. Stroot
  • Patent number: 8623205
    Abstract: A ballasted anaerobic system for treating wastewater including at least one anaerobic treatment reactor. A weighting agent impregnation subsystem is configured to mix weighting agent with the biological flocs to form weighted biological flocs to create a weighted anaerobic sludge blanket in the at least one anaerobic treatment reactor. A weighting agent recovery subsystem is configured to recover the weighting agent from excess sludge and reintroduce the weighting agent to the weighting agent impregnation subsystem.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: January 7, 2014
    Assignee: Siemens Water Technologies LLC
    Inventor: Steven E. Woodard
  • Patent number: 8518249
    Abstract: A biological wastewater treatment system is provided which is adaptable to small, shop fabricated package plants and large, assembled in place plants, and which can be operated as a secondary treatment, activated sludge process, for suspended solids and BOD removal, or a tertiary treatment, activated sludge process, for suspended solids, BOD, nitrogen and phosphorus removal. The system includes a wastewater pump and an air aspirator-mixer to provide aeration, sludge recirculation and waste, and wastewater recirculation for the secondary and tertiary treatment processes. The aeration system with the air aspirator-mixer transfers oxygen to the wastewater, and is located outside aeration tanks. The wastewater pump and air aspirator-mixer system lends itself to continuous and cyclic aeration and oxic and anoxic treatment processes. The multiple use of the wastewater pump for aeration, recirculation and sludge waste minimizes the number of pumping systems required and eliminates air blowers.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: August 27, 2013
    Inventor: Jan A. Korzeniowski
  • Patent number: 8440074
    Abstract: The present invention provides a system and method for treating wastewater in which the majority of solids and biological oxygen demand compounds are separated from the wastewater feed using a primary separation process, to produce a solids phase and a water phase. The solids phase is irradiated to reduce the level of pathogens such that it is safe to use as a soil substitute and/or additive so that the solids can thus be disposed of in an environmentally-friendly manner. In additional embodiments, the solids that have been disinfected by radiation are mixed with a suitable inert filler material to produce a soil substitute, fertilizer, compost, or other soil additive. The liquid phase is treated in a substantially smaller system than would be required for treating the full-strength wastewater that can include a suspended media biological regeneration reactor system.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 14, 2013
    Assignees: Saudi Arabian Oil Company, Siemens Energy, Inc.
    Inventors: William G. Conner, Osama I. Fageeha, Thomas E. Schultz
  • Publication number: 20130056400
    Abstract: The application relates to a liquid mixing and pumping system (10) and to a waste water treatment works incorporating it. The system is for a reservoir (20) operatively containing liquid and includes a mixer (28), operatively submerged in the liquid and rotatable about a vertical rotational axis (30. By rotation of the mixer by drive means (32), a reduced pressure zone is induced at the mixer and about the rotational axis. Peripherally around the vanes, outward flow of the liquid away from the mixer is induced. The system includes also at least one transfer pipe (34) defining an outlet (38) exposed to the reduced pressure zone and an inlet (36) in a source (22) of the liquid. The reduced pressure zone induces a pressure head which causes transfer of liquid from the source into the reservoir. The system serves a dual purpose, i.e. mixing in the reservoir (20) and pumping into the reservoir (20).
    Type: Application
    Filed: March 3, 2011
    Publication date: March 7, 2013
    Inventor: Zacharias Joseph Van Den Berg
  • Patent number: 8333886
    Abstract: A water treatment unit includes a mixing chamber surrounding the upper end of a riser containing an impeller. Water can be moved from a body of water up through the riser, and out through laterally directed openings into the chamber adjacent to an air inlet. The water moving out the laterally directed openings of the stand pipe, mixes with air drawn in through the air inlet to oxygenate the water, and the oxygenated water exits the chamber into the body of water through one or more water outlets in the lower portion of the chamber due to the head developed by the inflow of water into the chamber. The outward flow of water from the chamber can cause a toroidal or other desired flow of water within the body of water surrounding the water treatment apparatus.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: December 18, 2012
    Assignee: Aqua Manna, LLC
    Inventor: James Bradley
  • Patent number: 8329041
    Abstract: A ship comprises a bilge water sump collecting bilge water and contaminants. A first contaminant separation device is provided comprising a conveyor arrangement with an endless belt comprising adsorbing/absorbing material. The conveyor arrangement has a first portion submergible into the bilge water and contaminants in the bilge water sump, and a second portion being spaced from the first portion and provided with means for releasing adsorbed/absorbed contaminants from the conveyor belt and means for collecting the contaminants released. The conveyor arrangement is further provided with means for driving the endless belt along a moving path defined by guiding means.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: December 11, 2012
    Assignee: P/F Faroe Maritime Technic
    Inventor: Kaj Joensen
  • Patent number: 8323499
    Abstract: Biologically treated wastewater is directed as mixed liquor from a treatment tank to a downstream filtration tank having a having a submerged membrane module extending across the cross-sectional area of the filtration tank. Mixed liquor is directed from the bottom of the filtration tank upwardly into the membrane module such that substantially all of the mixed liquor received in the bottom of the filtration tank flows through the membrane module. A permeate stream is produced. A portion of a non-permeate stream is recirculated to the treatment tank. The filtration tank is sized such that there is no substantial recycle of mixed liquor in the filtration tank. Once the mixed liquor in the filtration tank makes one pass through the membrane module the mixed liquor is recycled to the treatment tank and generally not permitted to be recycled through the membrane module without first returning to the treatment tank.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: December 4, 2012
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Hong W. Zhao, Martin Brockmann, Heribert Moeslang, Pierre Girodet
  • Publication number: 20120187032
    Abstract: A sweeper assembly can include a plurality of holes drilled in one or more sweeper headers that can be angled downwards towards the basin floor to produce a gentle flow of fluid to keep particulate matter rolling along the basin floor. A centrifugal separator can include a curved velocity plate for smoothly directing flow from an inlet pipe to an inner wall of the separator and creating a downward vortex of particulate-laden fluid within the centrifugal separator. The centrifugal separator can include one or more reversal mechanisms for transferring particulate matter to a collection chamber and reversing the direction of particle-free fluid, which may upwardly exit through a discharge pipe. The centrifugal separator can include a bleed valve in the discharge pipe for automatically bleeding accumulated air in the “dead zone” between the inlet pipe and the top of the centrifugal separator.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: Electronic Precipitation Systems, LLC
    Inventors: Jerry Davey, Richard P. Escue, Robert P. Kazanjy
  • Patent number: 8192617
    Abstract: Treatment of contaminated liquid is provided including an integrated ultra-filtration and clarification apparatus. Clarification of liquid occurs in a gap between a casing and a tank of the apparatus. Solids settle and aggregate in the bottom of the tank. The solids act as a secondary filter prior to contact of the liquid with the ultra-filtration filters. Clarified liquid is drawn through the ultra-filtration filters. An upstream electrocoagulation unit and a downstream reverse osmosis unit may be included in combination. Electrocoagulation can occur in the tank by reaction plates mounted within the tank. One embodiment includes dual integrated ultra-filtration and clarifier apparatuses and corresponding electrocoagulation units.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: June 5, 2012
    Inventor: Scott W. Powell
  • Patent number: 8163174
    Abstract: A submerged biofiltration purifying apparatus includes a settling zone being a 3D space having open top, bottom, and two lateral sides; one or more filtering zones coupled to the two lateral sides of the settling zone, and each being a 3D space with open sides and having soft contact media connected thereto; and one or more bubble aeration units connected to bottoms of the filtering zones. The soft contact media allow biological films to grow thereon. The bubble aeration units generate air bubbles that guide sewage to flow toward the soft contact media, so that organic substances in the sewage are adsorbed to the biological films. The soft contact media are arranged at a specific angle for the sewage to naturally diffuse toward two lateral sides of the settling zone and recycle. And, purified water settles in the settling zone again to remove remaining suspended solids to achieve sewage purification.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 24, 2012
    Inventor: Jun-Nan Lin
  • Patent number: 8123946
    Abstract: The invention provides a method for removal of metal sulphide particles from a liquid stream comprising a solvent and metal sulphide particles, using a filter system comprising at least one membrane, the method comprising contacting the liquid stream with the membrane, thereby transferring metal sulphide particles from the liquid stream onto the membrane surface to obtain a liquid stream depleted of metal sulphide particles and a filter system comprising a membrane enriched in metal sulphide particles.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 28, 2012
    Assignee: Shell Oil Company
    Inventors: Johannes Leendert Willem Cornelis Den Boestert, Arian Nijmeijer, Wim M Bond, Hubert Willem Schenck
  • Patent number: 8101071
    Abstract: One aspect of the present disclosure includes an oil removal reclamation clarifier system in communication with a body of oil laden wastewater fluid and a conduit for transporting the fluid to the reclamation clarifier system. The reclamation clarifier system includes an oil removal mixing containment device having an influent port, an agent inlet, a sludge collection section in a lower portion of the device for collecting the dispersed liquid, a sludge outlet, and, at least one decant valves located on or near an upper portion of a sidewall of the oil removal clarifier device for permitting unsettled material to exit from the clarifier.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: January 24, 2012
    Assignee: Caterpillar Inc.
    Inventor: John M. Spangler
  • Publication number: 20120012540
    Abstract: A grit removal system for tanks with a need to remove settled solids (e.g., anaerobic digester tank) is described. The system is especially suitable for a large tank, preferably having a flat floor, and it works well while submerged under a liquid. Specifically, a periphery-driven rack & pinion mechanism drives a shaft to rotate about a center pivot, and scrapes settled solids towards tank periphery, where the solids fall into a pit on the tank floor. A drainage opening inside the pit, when opened by a valve, is used to flush out the solids through a standpipe into a settlement tank for final dewatering and solid disposal. The system is compatible for continuous tank operation, and is useful for stirring tanks requiring periodic sediment removal.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Inventors: Peter Kotelko, Mike Kotelko, George Caraganis, Glen Foster
  • Patent number: 8057673
    Abstract: Treatment system for wastewater containing ammonium is provided. The treatment system of the present invention includes an ammonia oxidation reactor and a membrane reactor disposed on the back of the ammonia oxidation reactor. The ammonia oxidation reactor includes biological carriers for carrying the ammonium oxidation bacteria and nitrite oxidation bacteria, a pH level controller for increasing the pH level to above 7.5, and a DO (dissolved oxygen) controller for reducing the DO content to less than 1.0 mg/L. The membrane reactor composed of a membrane and an aerator is used to separate the solids and liquids of the effluent of the ammonia oxidation reactor. In addition, a method for treating wastewater containing ammonium is also provided.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 15, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng
  • Patent number: 8029668
    Abstract: An apparatus and method for treating raw water. The apparatus comprises a vessel having an inlet for the raw water and an outlet for the skimmed water, and wherein the vessel contains the raw water, and a rotor mechanism for creating a plurality of gas bubbles within the raw water. The apparatus further comprises a disperser device, operatively associated with the rotor mechanism, for dispersing the plurality of gas bubbles from the rotor mechanism within the vessel, and wherein the gas bubbles create an oily froth on the top of the raw water, and a skim tray, positioned about the rotor mechanism, is provided for removing the oily froth from the top of the raw water as well as a secondary skimmer positioned within the skim tray. In one preferred embodiment, an external skim tank that is configured to deliver a gas to the rotor mechanism and wherein the external skim tank is configured to receive the oily froth from the secondary skimmer.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: October 4, 2011
    Assignee: CCS Energy Services, LLC
    Inventors: Melvin O. Stacy, Mark G. Arceneaux, Eric Wingate
  • Patent number: 8007666
    Abstract: A method and apparatus of sanitizing drinking water to be dispensed from a water dispenser having a reservoir includes the steps of providing the ozone gas generator that generates an ozone gas stream, transmitting the ozone gas stream from the generator to the water dispenser reservoir, mechanically breaking up the ozone gas stream inside the reservoir to produce ozone gas bubbles, and using the ozone gas bubbles to disinfect water in the reservoir. The ozone gas stream can be mechanically broken up using a pump such as, for example, an impeller type pump.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 30, 2011
    Assignee: S.I.P. Technologies L.L.C.
    Inventors: Kenneth A. Davis, James Jackson Shelton
  • Publication number: 20110114565
    Abstract: A dissolved air flotation clarifier for removing impurities from a liquid to be clarified. The dissolved air flotation clarifier includes a housing having an inlet for receiving a liquid to be clarified. The housing further includes a reaction zone, a clarification zone and an effluent channel. The reaction zone has at least one saturated water distributor and at least one dissolved air flotation nozzle operably connected to the at least one saturated water distributor to receive saturated water from the at least one saturated water distributor. The dissolved air flotation nozzle is configured to release micro-bubbles from a saturated water so that the micro-bubbles can mix with the liquid to be clarified to remove impurities from the liquid to be clarified.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 19, 2011
    Inventors: R. Lee Roberts, Mark Kevin Addison
  • Patent number: 7883627
    Abstract: An automated system for fuel polishing stored fuel in multiple storage tanks, and methods for making and using such systems, such methods including the use of an apparatus comprising a pump having a flow velocity sufficient to suspend settled impurities in a fuel storage tank, at least a first and second fuel storage tank each having an inlet and an outlet; said at least one filter; a fluid pathway connecting said pump, said fuel storage tanks, and at least one filter; a first three-way valve positioned at a junction between the inlet of at least said first and second fuel storage tanks; a second three-way valve positioned at a junction between the outlet of at least said first and second fuel storage tanks; and a system controller component operably connected to said first and second three-way valve to automatically control the position of each valve without manual intervention.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 8, 2011
    Inventor: Douglas P. Barrett
  • Patent number: 7879237
    Abstract: A biological treatment method and device for organic wastewater, whereby the amount of minute organisms which reduce the amount of excess sludge and held within an activated sludge tank can be stabilized so that the treatment can be stabilized, are provided. Substrates for growing dispersed bacteria and/or dispersed bacteria are supplied to a sludge treatment tank 51 which reduces the sludge by the minute organisms, so that the minute organisms grow stably and reduce the sludge. Specifically, a first and a second biological treatment step are conducted respectively in a first activated sludge tank 21 and a second biological treatment tank 31. The sludge included in effluent which flows from the biological steps is separated in a sedimentation tank 41. The generated sludge obtained is supplied to the sludge treatment tank 51.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: February 1, 2011
    Assignee: Kurita Water Industries Ltd.
    Inventor: Shigeki Fujishima
  • Patent number: 7850849
    Abstract: The invention presented is an apparatus specifically designed for the high rate anaerobic treatment of (waste)waters with relatively high concentrations of lipidic compounds, referred to as the Inverted Anaerobic Sludge Blanket (IASB) reactor. Contrary to conventional anaerobic reactors, it avoids the need of sludge with good settling properties and exploits the problem of sludge flotation due to long chain fatty acid (LCFA) or biogas adsorption onto the sludge and/or biogas encapsulation by the sludge. Furthermore, it provides an increased specific sludge surface area for better LCFA degradation. It is fed from the top and is equipped with a separation step at the bottom. Reactor contents are thoroughly mixed by the novel combined action of a gas lift loop and a liquid recycle over the reactor. The reactor can be operated in continuous and sequential mode. Although it is specifically designed for lipid degradation, its application is not limited to this.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: December 14, 2010
    Assignee: Universidade Do Minho
    Inventors: Maria Madalena Dos Santos Alves, Merijn Amilcare Picavet, Maria Alcina Alpoim De Sousa Pereira, Diana Zita Machado De Sousa, Ana Júlia Viana Cavaleiro
  • Patent number: 7846328
    Abstract: Disclosed is a wastewater treatment apparatus utilizing time tested techniques for recirculating media treatment with proprietary advancements to produce a system capable of nitrifying and denitrifying wastewater through the use of passive calcium carbonate and organic carbon feed systems. By creating aerobic and anaerobic zones and the ability to monitor and adjust these zones by physical and mechanical means with minimal operator involvement, wastewater is recycled through these zones thereby creating an enhanced biological filtering process. The treated wastewater is then discharged to standard leaching facilities, various irrigation uses and/or introduced to further treatment for water recycling and reuse.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 7, 2010
    Inventor: Matthew C. Costa
  • Patent number: 7820048
    Abstract: A method and system for treating organically contaminated waste water for reuse, by: introducing the waste water into a sedimentation tank to remove a significant portion of the organic contaminants; circulating the waste water from the sedimentation tank to an anoxic mixing chamber for denitrifying the waste water; circulating the waste water from the anoxic mixing chamber to a rotary biological contactor to nitrify the waste water by aeration, and to assimilate organic materials therein by bringing the waste water into contact with a biological medium, to thereby output nitrified waste water; and recirculating a portion of the nitrified waste water outputted from the rotary biological contactor back to the anoxic mixing chamber to enhance the nitrifying and denitrifying of the waste water.
    Type: Grant
    Filed: October 15, 2006
    Date of Patent: October 26, 2010
    Inventor: Roni Weissman
  • Publication number: 20100237014
    Abstract: A membrane module (100) has an upper header.(108) and multiple lower headers (110). A bundle of membranes (24) potted in the upper header is sub-bundled into the lower headers. The membranes (24) may be arranged in the upper header into a number of generally parallel sheets or planes and arranged into a lower header (110) into a lesser number of sheets or planes. Spaces between the multiple lower headers (110) help gas bubbles rise into the module (100) or water containing solids drain from the module (100). The module (100) may be used in batch or continuous filtration processes. In one specific process, water flows downwards through the module (100) and air bubbles are provided from near the bottom of the module (100).
    Type: Application
    Filed: May 8, 2008
    Publication date: September 23, 2010
    Inventors: Steven K. Pedersen, Pierre Lucien Cote, Nicholas Willam Harcsar Adams
  • Publication number: 20100230331
    Abstract: An aggregating agent injector (13) injects into raw water an aggregating agent for aggregating solids in raw water, a first aggregation aid injector (16) injects into raw water with the aggregating agent injected therein an aggregation aid for hardening or consolidating flocs formed by the aggregating agent, and a centrifugal separator (18) has a flocculator portion for causing raw water with the aggregation aid injected therein to whirl therein to flocculate solids in raw water, and a solid collector portion for causing raw water to swirl at higher speeds than in the flocculator portion to separate flocs from raw water.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 16, 2010
    Inventors: Mii Fukuda, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Ichiro Yamanashi, Tokusuke Hayami, Kazuhiko Noda
  • Patent number: 7718065
    Abstract: The invention relates to a membrane bioreactor process combined with an advanced biological sludge digestion process that provides significant improvements in sludge digestion by reducing the costs and resources required for disposing of digested sludge. The offline treatment vessel is used to solubilize the organic material by operating in a very low oxygen environment. Digested process fluid is transferred back to the membrane bioreactor. The processes and apparatus substantially reduce the production of waste sludge.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 18, 2010
    Assignee: Siemens Water Technologies Corp.
    Inventor: Edward John Jordan