Utilizing Contact Surfaces Supporting Microorganism (e.g., Trickling Filter, Etc.) Patents (Class 210/615)
  • Patent number: 8057676
    Abstract: Drainage water containing an organofluorine compound is introduced into a raw tank (1) and then filtered through a filtration device (4). Next, a microorganism, a micro-nanobubbling auxiliary agent and a nutrient are added thereto in a first transit tank (5) while micro-nanobubbles are generated thereinto by a micro-nanobubbling machine (7), thereby giving treated water. This treated water is then fed into an active carbon column (14) and then the above-described organofluorine compound contained in the treated water is decomposed by the microorganism as described above.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: November 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Kazuyuki Sakata, Kazumi Chuhjoh, Masaki Kataoka
  • 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
  • Publication number: 20110259822
    Abstract: Water from underground and other sources of water are brackish and not suitable for human consumption. Naturally present dissolved chemicals in water make it brackish. The precipitants and dissolved chemicals need to be separated from water to make it consumable. A combination of aeration systems, filtration systems, crystallizers and hydrophobic membrane carrying filter are used to desalinate the brackish water. Solar energy and ceramic filters are used as add on to existing technology. Various heat exchange apparatus are used for energy conservation and efficient processing of water in a feasible way. The disclosure enables to purify water and provide a useful technology to eradicate water scarcity.
    Type: Application
    Filed: July 3, 2011
    Publication date: October 27, 2011
    Applicant: King Abdulaziz City for Organization Name Science and Technology "KACST"
    Inventor: Saad A. Al-Jlil
  • Publication number: 20110253625
    Abstract: Provided is a biological nitrogen removal method which includes, causing to flow a support having, on the surface portion thereof, a two-layered microbial film which holes, in the outer layer, nitrite type nitrifying bacteria or aerobic bacteria and nitrite type nitrifying bacteria as a dominant species and, in the inner layer, anaerobic ammonia oxidizing bacteria as a dominant species while being surrounded with the nitrite type nitrifying bacteria; and thereby carrying out denitrification of the water to be treated by making use of the anaerobic ammonia oxidation reaction. In the biological nitrogen removal method, a feed rate of the support (total surface area of the support per unit capacity of the reaction tank) is adjusted so that an amount of nitrous acid produced by the nitrite type nitrification reaction through the action of the nitrite type nitrifying bacteria reaches a level to inhibit a nitrate type nitrification reaction.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 20, 2011
    Applicant: Metawater Co., Ltd.
    Inventor: Shigeki TAKEDA
  • Publication number: 20110247976
    Abstract: A methodology, and related systems and structures for accomplishing the methodology, of biological remediation of hazardous or undesirable organic matter, wherein a plurality of carrier members are disposed in a localized retaining member, the carrier members releasing or exposing microorganisms to the undesirable organic matter on a staggered basis over an extended period of time, the microorganisms being capable of biologically remediating the undesirable organic matter by utilizing the organic matter as a food source, thereby converting it into environmentally safe bi-products.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Inventor: Mark D. Shaw
  • Publication number: 20110247978
    Abstract: A system and process for treating an industrial wastewater stream is provided using a membrane biological reactor in which granular activated carbon material is introduced into an aeration portion and maintained upstream of a membrane operating system. The size of the granules of activated carbon is selected so that they can be screened or otherwise readily separated from the mixed liquor stream before the mixed liquor enters the membrane operating system tank(s) containing the submerged membranes, thereby preventing abrasion of the membrane by the carbon granules. The aeration portion includes a waste discharge port whereby a portion of spent granular activated carbon can be removed when the effluent concentration of chemical oxygen demand compounds approaches limits typically set by governmental agencies, and replaced by addition of fresh or regenerated granular activated carbon having greater adsorbent capacity.
    Type: Application
    Filed: May 24, 2011
    Publication date: October 13, 2011
    Inventor: William G. Conner
  • Patent number: 8017014
    Abstract: The invention pertains to a method(s) of improving flux in a membrane bioreactor by adding an effective amount of catonic, amphoteric, and zwitterionic polymers, or a combination thereof. The membrane bioreactor impacted by the addition of these polymers is made up of a combination of anaerobic reactors, anoxic reactors, and aerobic reactors and anaerobic digesters.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: September 13, 2011
    Assignee: Nalco Company
    Inventors: Seong-Hoon Yoon, John H. Collins, Jeroen A. Koppes, Ingmar H. Huisman
  • Patent number: 8017365
    Abstract: A resource production system using a byproduct from the production of ethanol for efficiently producing biogas and fertilizer from the byproducts of ethanol production. The resource production system using a byproduct of a production of ethanol generally includes a plurality of processes for producing an inorganic renewable fertilizer, such as struvite and a non-fossil fuel source of energy, such as biogas, by using various types of byproducts produced by the ethanol plant, such as but not limited to whole stillage, thin stillage and thin stillage solubles. The process also produces an organic fertilizer, such as biosolids and a liquid stream suitable for further processing to produce recyclable water at the ethanol plant.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: September 13, 2011
    Inventors: David A. Rein, Patrick A. Rein
  • Publication number: 20110210066
    Abstract: The present application provides a higher grade purification method of waste fulid in decomposition of organic substances than the conventional active sludge method using monocellular microorganisms. The method includes a first step of growing a filamentous fungus and/or actinomycete on a porous or fibrous carrier made of polypropylene or polyethylene by solid fermentation. Then the carrier including the grown filamentous fungus and/or actinomycete is loaded into waste fluid for purification of the waste fluid. The carrier is preferably first soaked with a nourishing starch solution and then a filamentous fungus and/or actinomycete is grown by solid fermentation such that a hyphal membrane covers the surface of the carrier.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Inventor: Keisuke Takenouchi
  • Patent number: 8010329
    Abstract: A computer-implemented system for designing a pressure-dosed drain field comprising: a screen that allows a user to specify length and diameter for pipes that comprise the forcemain and discharge assembly, specify the pumping liquid level and discharge elevation, select the number of laterals and enter a specified residual pressure, enter or select a coefficient to be used in calculating friction losses, and enter the diameter and length of each manifold segment; a minor loss screen that calculates minor losses based on fitting selections made by the user; a pump file; a tabulated results screen; a gauge screen; and system and pump curves. A computer-implemented method of using the above system to design a pressure-dosed drain field. The purpose of the system and method is to enable an engineer to design a pressure-dosed drain field that will meet regulatory requirements for the system flow differential.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: August 30, 2011
    Assignee: Kallenbach, Inc.
    Inventor: Thomas J. Kallenbach
  • Publication number: 20110195168
    Abstract: Diatomaceous earth products are prepared by at least agglomerating at least one natural diatomaceous earth material with at least one aluminate material, and subjecting agglomerated diatomaceous earth material to at least one heat treatment. In one embodiment, the diatomaceous earth product has a permeability ranging from about 0.2 darcy to about 3.0 darcy. In another embodiment, the diatomaceous earth product has a cristobalite content of less than about 1% by weight. In a further embodiment, the diatomaceous earth product has a quartz content of less than about 0.5% by weight. Also disclosed are diatomaceous earth products, uses for diatomaceous earth products, and filter aid compositions comprising diatomaceous earth products.
    Type: Application
    Filed: October 7, 2009
    Publication date: August 11, 2011
    Applicant: World Minerals, Inc.
    Inventor: Bo Wang
  • Publication number: 20110186508
    Abstract: Apparatus and methods for water treatment are described, particularly for the simultaneous removal of nitrate, perchlorate, and other organic contaminates from contaminated water using a membrane biofilm reactor (MBfR).
    Type: Application
    Filed: March 21, 2011
    Publication date: August 4, 2011
    Applicant: Applied Process Technology, Inc.
    Inventor: Reid Bowman
  • Patent number: 7988857
    Abstract: A method for treating mixed wastewater from pharmaceutical chemical industry parks including introducing mixed wastewater into a regulation tank for regulation of water flow and water quality, and then into a hydrolysis tank having a hanged filler and employing upflow water distribution, into an anaerobic tank employing upflow water distribution, into a moving bed biofilm reactor having a suspended filler and an aeration device at the bottom thereof, into a biological aerated filter including a ceramic filler, and finally treating using coagulating precipitation process. The final effluent has less than 100 mg/L COD.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: August 2, 2011
    Assignee: Nanjing University
    Inventors: Hongqiang Ren, Lei Ge, Feifei Wang, Lili Ding
  • Publication number: 20110180474
    Abstract: A membrane biofilm reactor (MBfR) device for treatment of water avoiding biofouling comprising: a central core tube having a wall defining a lumen and one or more perforations in the wall defining a perforated region, the core tube further having a first open end and second substantially closed end; a plurality of hollow filaments, each filament having a wall that defines an inner lumen, an exterior surface, a first end, and a second end; and a case having a cavity, a first end cap, a second end cap, and at least one effluent port; wherein the first open end of the core tube is sealed in the first end cap with the perforated region extending into the central cavity of the case, and wherein the first ends of the plurality of hollow filaments are open and sealed in the first end cap and the second ends of the plurality of hollow filaments are open and sealed in the second end cap.
    Type: Application
    Filed: July 28, 2009
    Publication date: July 28, 2011
    Inventor: Reid H. Bowman
  • Publication number: 20110174731
    Abstract: Described herein is a Submerged Attached Growth Reactor (SAGR) which provides nitrification (ammonia removal) from wastewater in cold to moderate climates. The system described herein is novel in that the SAGR reactor includes more than one influent distribution point. Specifically, in addition to the first influent distribution point at the front end of the reactor, there is provided at least one additional distribution point(s) downstream of this first distribution point for introduction of influent into the reactor. As a result of this arrangement, when a second low carbonaceous biochemical oxygen demand (CBOD), high nitrogen influent is distributed into the reactor at a location downstream of the initial influent entry point, a second (or more) population of bacteria (mainly nitrifying bacteria) is established and/or maintained in a physically discrete part of the overall treatment reactor.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Inventors: Martin Hildebrand, Merle Kroeker, Byron Heppner
  • Patent number: 7972512
    Abstract: A system and process for treating an industrial wastewater stream is provided using a membrane biological reactor in which granular activated carbon material is introduced into an aeration portion and maintained upstream of a membrane operating system. The size of the granules of activated carbon is selected so that they can be screened or otherwise readily separated from the mixed liquor stream before the mixed liquor enters the membrane operating system tank(s) containing the submerged membranes, thereby preventing abrasion of the membrane by the carbon granules. The aeration portion includes a waste discharge port whereby a portion of spent granular activated carbon can be removed when the effluent concentration of chemical oxygen demand compounds approaches limits typically set by governmental agencies, and replaced by addition of fresh or regenerated granular activated carbon having greater adsorbent capacity.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: July 5, 2011
    Assignee: Saudi Arabian Oil Company
    Inventor: William G. Conner
  • Publication number: 20110126312
    Abstract: The invention relates to a specific method for improving the tolerance to salinity of living organisms and eliminating sodium (Na+) from water, soil, sludge or any other medium containing said element, using isolated nucleic acid sequence that codes for the phytochelatin synthase of Nicotiana glauca
    Type: Application
    Filed: October 24, 2008
    Publication date: May 26, 2011
    Inventor: Juan Pedro Navarro Avino
  • Publication number: 20110108479
    Abstract: Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 12, 2011
    Applicant: AERATION INDUSTRIES INTERNATIONAL, INC.
    Inventors: Daniel Durda, G. Shawn Brown, Cory Mortenson
  • Patent number: 7938965
    Abstract: The present invention provides a reactor for the biological processing of fluid such as domestic or industrial waste water or the like, the reactor comprising a plurality of substantially horizontal layers of growth medium stacked one above the other, and having a colonizing biofilm thereon during use, the reactor being arranged to cause the path of flow of the fluid to reverse from one layer to the next, in order to maximize the length of the path of flow for a given footprint of the reactor.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: May 10, 2011
    Assignee: National University of Ireland
    Inventors: Michael Rodgers, John Mulqueen, Rose Mulqueen, legal representative, Aoife Lambe, Liwen Xiao, Eoghan Clifford, John Prendergast
  • Publication number: 20110100907
    Abstract: A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.
    Type: Application
    Filed: September 30, 2010
    Publication date: May 5, 2011
    Applicant: SIEMENS WATER TECHNOLOGIES CORP.
    Inventors: Fufang Zha, Gerin James, Edward Joseph Zuback, Peter Zauner, Roger William Phelps
  • Patent number: 7927492
    Abstract: Provided is a filter assembly for a bioremediating catch basin. The filter assembly comprises a container having at least one inlet and at least one outlet; a carrier substance, such as a foam, which carries a microorganism capable of digesting hydrocarbons; and optionally an adsorbent material. The filter assembly also optionally has structures for overflow conditions which allow the exit of water, but not floating contaminants from the catch basin. Also provided is a replaceable cartridge for the filter assembly. Also provided is a method for bioremediation of polluted water.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: April 19, 2011
    Inventors: William E Baird, William I. Young
  • Patent number: 7914677
    Abstract: Water (23) that contains micro-nano bubbles generated in a micro-nano bubble generation tank (6) is introduced and treated in a charcoal water tank (ii) which is filled with a charcoal (15) and in which an air diffusing pipe (12) is placed and thereafter introduced and treated in a membrane device (21). Thus, activities of microorganisms propagating in the charcoal (15) are increased by the micro-nano bubbles, markedly increasing ability of decomposing organic matters in the water. Therefore, a clogging phenomenon due to the organic matters can be prevented by reducing organic loads on the membrane device (21). Moreover, a very small amount of alcohols or salts are added as a micro-nano bubble generation aid to the micro-nano bubble generation tank (6), improving an incidence rate of the micro-nano bubbles. The alcohols and salts are easily decomposed by the charcoal water tank (ii) and easily removed by the membrane device (21).
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: March 29, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Yamasaki, Kazuyuki Sakata, Kazumi Chuhjoh
  • Publication number: 20110068057
    Abstract: Systems, apparatuses, and methods of treating wastewater are provided. In some aspects, a container may be provided and may include a first member, a second member spaced apart from the first member, and media supported by and extending between the first and second members. An organism may be introduced into the container and wastewater may be introduced into the container for treatment. The media may be loop cord media. In other aspects, two containers may be provided and wastewater may be initially introduced into a first container for treatment, removed from the first container, and subsequently introduced into the second container for further treatment. A first species of organism may be present in the first container and a second species of organism may be present in the second container. Methods of using these containers are also provided.
    Type: Application
    Filed: October 13, 2010
    Publication date: March 24, 2011
    Applicant: BIOPROCESSH20 LLC.
    Inventors: John W. Haley, III, Toby D. Ahrens, Shawn R. Kitchner
  • Patent number: 7910001
    Abstract: The present invention relates to a novel arrangement of denitrification reactors for removal of nitrate compounds in a recirculating aquaculture system. The novel arrangement of an aquaculture system of the present invention includes positioning one or more anaerobic denitrification reactors upstream of aerobic nitrification and degassing processes. One aspect of the present invention includes a flow of aqueous medium from aquatic species rearing tanks towards one or more denitrification reactors. Another aspect of the present invention includes flow of aqueous medium from aquatic species rearing tanks to a solids removing filter or mechanical filtration means for removal of solid waste matter or biomass prior to flow of aqueous medium towards one or more denitrification reactors.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 22, 2011
    Assignee: Mote Marine Laboratory
    Inventors: James T. Michaels, II, Heather J. Hamlin, William H. Dutt, William Graham, Peter Steinbach, Brian Babbitt, Brian A. Richards, II
  • Patent number: 7897048
    Abstract: The present invention discloses a membrane, optionally for use in sewage treatment. The membrane comprises a support membrane having a gas face biolayer on a gas face of the membrane and/or in the support membrane near the gas face, and a liquid face biolayer on a liquid face of the membrane and/or in the support membrane near the liquid face.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: March 1, 2011
    Assignee: Australian Nuclear Science and Technology Organisation
    Inventor: Anthony Patrick Andrew Taylor
  • Patent number: 7897042
    Abstract: Entrapping immobilization pellets for purifying breeding water in an aquarium to breed aquatic animals, wherein the entrapping immobilization pellets have a phosphorus content of 0.05 mass % or less.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: March 1, 2011
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Shinichi Yoshikawa, Naoki Abe, Kazuichi Isaka
  • Publication number: 20110042308
    Abstract: A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles.
    Type: Application
    Filed: April 23, 2009
    Publication date: February 24, 2011
    Inventors: Stefan Krause, Reinhard Voigt, Peter Cornel
  • Patent number: 7892433
    Abstract: Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 22, 2011
    Assignee: Aeration Industries International, Inc.
    Inventors: Daniel Durda, G. Shawn Brown, Cory Mortenson
  • Publication number: 20110039296
    Abstract: A method of attaching a cell or a membrane-coated particle-of-interest to a microtube is provided. The method comprising: co-electrospinning two polymeric solutions through co-axial capillaries, wherein a first polymeric solution of the two polymeric solutions is for forming a shell of the microtube and a second polymeric solution of the two polymeric solutions is for forming a coat over an internal surface of the shell, the first polymeric solution is selected solidifying faster than the second polymeric solution and a solvent of the second polymeric solution is selected incapable of dissolving the first polymeric solution and wherein the second polymeric solution comprises the cell or the membrane-coated particle-of-interest, thereby attaching the cell or the membrane-coated panicle-of-interest to the microtube. Also provided are microtubes with attached, entrapped or encapsulated cells or membrane-coated particles and methods of using same.
    Type: Application
    Filed: February 12, 2009
    Publication date: February 17, 2011
    Applicant: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD.
    Inventors: Jonathan Charles Kuhn, Eyal Zussman, Michal Green, Shiri Klein
  • Publication number: 20110027870
    Abstract: A biomass carrier including a multiplicity of generally elongate plastic biomass attachment strips joined to each other at least one location therealong, the multiplicity of generally elongate plastic biomass attachment strips being mutually arranged to define a generally deformable biomass carrier including generally outer disposed biomass attachment strips and generally inner disposed biomass attachment strips. Apparatus and methods for manufacture of the biomass carrier as well as fluid treatment systems and methods using the biomass carrier are also disclosed.
    Type: Application
    Filed: February 24, 2009
    Publication date: February 3, 2011
    Applicant: AQWISE-WISE WATER TECHNOLOGIES LTD.
    Inventors: Nir Assulin, Ronen Itzhak Shechter, Tamar Arbel
  • Publication number: 20110006000
    Abstract: A method of in situ treatment of wastewater that is contaminated with a heavy metal may include passing a flow of contaminated wastewater through a reactor vessel. The reactor vessel may contain a plurality of biofilm retaining structures. Each of the structures may at least be partially coated with a biofilm. Additionally, the biofilm may include a plurality of bacteria retained in a matrix and the matrix may include DNA, protein and carbohydrates produced by the bacteria.
    Type: Application
    Filed: June 22, 2010
    Publication date: January 13, 2011
    Applicant: ALLEGHENY-SINGER RESEARCH INSTITUTE
    Inventors: James Christopher Post, Garth David Ehrlich, John William Costerton
  • Publication number: 20110006001
    Abstract: A method, apparatus, and system for removing contaminants from a body of surface water. The method and apparatus may include tubular members such as hollow-fiber components. The tubular members have a reactive gas diffused through wall of the member. Contaminants in the water can be removed when the reactive gas reacts with bacteria on the tubular member.
    Type: Application
    Filed: February 26, 2009
    Publication date: January 13, 2011
    Inventor: Bruce E. Rittman
  • Publication number: 20110000850
    Abstract: A process for the treatment of water comprising at least the steps of: (a) providing the water in laminar flow; and (b) providing bubblefree aeration to the water. The present invention introduces aerobic treatment into wastewater settlement without any hindrance to the settlement process. The present invention is useable for any settlement step or stage, without limitation, the commonest being primary settlement or final settling.
    Type: Application
    Filed: December 19, 2008
    Publication date: January 6, 2011
    Inventors: Elaine . Groom, Simon Murray, Joel Ferguson
  • Patent number: 7862721
    Abstract: A process for the decontamination of an effluent containing one or more dissolved metals is provided. The process includes producing hydrogen sulphide in an aqueous medium by culturing alkaliphilic sulphate-reducing or thio-sulphate reducing bacteria in the presence of an organic compound serving as an electron donor and in the presence of a sulphurous compound serving as an electron acceptor. The effluent is contacted with the hydrogen sulphide and the dissolved metals are reduced and/or precipitated in the form of metal sulphides.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: January 4, 2011
    Assignee: Institut de Recherche pour le Development (IRD)
    Inventors: Bernard Marcel Noel Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin
  • Patent number: 7862711
    Abstract: Wastewater treatment facilities having biofilm contact and solid-liquid separation functions are disclosed, wherein a biofilter unit having biofilm contact, inclination plate precipitation and de-filming functions comprises an inclination plate settler formed with a plurality of inclination plates (2), each plate spaced in parallel relative to water surface at a predetermined downward angle and a predetermined distance apart, and spacings formed by the plates (2) are filled by biofilm media (3,3a) formed with specific surface-increased and bio-affinity materials so that micro-organisms can attach and grow in the shapes of biofilms therein, and de-filming means for separating biofilms attached to and grown on the biofilm media (3, 3a) and solids deposited on the surfaces of the inclination plates (2) by applying shearing force to biofilm media (3, 3a) and inclination plates (2).
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: January 4, 2011
    Assignee: Green Technology Co., Ltd.
    Inventor: Sang Bae Han
  • Publication number: 20100326907
    Abstract: A method for removing contaminants from a fluid-material comprising: providing at least one substrate comprising a three-dimensional knit in an initial configuration made of knitted polymeric fiber which substantially resumes the initial configuration after it is released from stretching or compressing force; and submerging said at least one substrate in a fluidic material for treatment of the fluidic material.
    Type: Application
    Filed: June 29, 2008
    Publication date: December 30, 2010
    Inventors: Jonah Gavrieli, Pinhas Hascalovich
  • Publication number: 20100320145
    Abstract: An apparatus and method for passively generating a current flow in a body of water is disclosed. The passive water circulating apparatus has an aeration plate having a central opening; a plurality of flotation members joined to the aeration plate, the plurality of flotation members being adapted and disposed for maintaining buoyancy of the aeration plate above a water surface; an uplift tube member having a central orifice in fluid communication with the central opening of the aeration plate; a concentrator member disposed at an end of the uplift tube opposite the aeration plate, the concentrator member having a bottom opening in fluid communication with an upper opening, the bottom opening being wider than the upper opening and the upper opening being connected to the uplift tube member; and a plurality of bio-substrates suspended from the concentrator member below the bottom opening, the plurality of bio-substrates providing a substrate for growth of microbes.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 23, 2010
    Applicant: ABSOLUTE AERATION
    Inventors: James Rhrodrick Key, Ricky Eugene Roberts, Griscom Bettle, III
  • Patent number: 7854843
    Abstract: A wastewater treatment system including a biological reactor is disclosed. At least one controlled-reaction-volume module is provided to the biological reactor. The at least one controlled-reaction-volume module includes a fixed-film media for supporting a biological growth. At least one mixer, such as, for example, a high momentum mixer, for communicate a fluid to the at least one controlled-reaction-volume module so that wastewater and the biological growth communicate to thereby treat the wastewater.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: December 21, 2010
    Assignee: Entex Technologies Inc.
    Inventors: Richard L. Pehrson, Wayne J. Flournoy, Sarah B. Hubbell
  • Patent number: 7854841
    Abstract: The present invention relates to a combined anaerobic process apparatus for treating organic wastes, comprising: a first solid-liquid separator to separate organic wastes into liquid wastes and solid wastes; an acid-forming tank to decompose the liquid wastes separated through the first solid-liquid separator using acid-forming microorganisms; a USAB reactor to decompose the liquid wastes discharged from the acid-forming tank using anaerobic microorganisms; a crushing tank to crush the solid wastes separated through the first solid-liquid separator finely; a mixing tank to mix solid wastes crushed through the crushing tank with microorganisms; and a dry-anaerobic tank to dry solid wastes mixed with microorganisms through the mixing tank, in an anaerobic manner.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: December 21, 2010
    Assignee: Hanbat National University Industry-Academic Cooperation Foundation
    Inventor: Sae Eun Oh
  • Publication number: 20100314313
    Abstract: Various embodiments described herein provide methods and apparatus for releasing treated wastewater into the environment by combining the treated wastewater with a concentrated salty water before discharging the combined water into the environment. The treated wastewater and concentrated salty water may be combined in a ratio that will be less toxic to at least some resident marine life than the treated wastewater alone.
    Type: Application
    Filed: May 13, 2010
    Publication date: December 16, 2010
    Inventor: Peter MacLaggan
  • Publication number: 20100300964
    Abstract: A process for treatment of water to convert ammonia to nitrate including: feeding water containing dissolved ammonia, as an influent introducing water to be treated, into a packed column containing filter media as packing; introducing air through a diffuser at the bottom of the packed column to maintain the water saturated with oxygen throughout the packed column; establishing colonies of bacteria converting ammonia to nitrate within the column; and removing an ammonia-free and nitrite-fee effluent from the column.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 2, 2010
    Applicant: The United States of America as represented by the United States Environmental Protection Agency
    Inventor: Darren Alan LYTLE
  • Patent number: 7842186
    Abstract: The present invention provides a method of treating wastewater containing phosphorus and/or nitrogen for removing phosphorus and/or nitrogen from the wastewater, including following steps of: (a) introducing wastewater containing phosphorus and/or nitrogen into a an anaerobic reactor, treating the introduced wastewater with anaerobic microorganisms, to produce biogas from organic matters in the wastewater, and then discharging the treated wastewater saturated with carbon dioxide under carbon dioxide partial pressure of 0.2 to 0.5 atm; and (b) injecting the treated wastewater of step (a) into a carbon dioxide stripping apparatus wherein the wastewater is free-fallen to expose the wastewater to ambient condition with carbon dioxide partial pressure of less than 0.001 atm so that carbon dioxide stripping takes place and increase in pH occurs without addition of alkaline substance, and then providing proper pH of 8.4 to 9.6 to form struvite.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: November 30, 2010
    Assignee: Entechs Co.
    Inventors: In Chung, Chi-Don Sung
  • Publication number: 20100276363
    Abstract: The present invention relates to a process for treating wastewater that includes the steps of: —a contact step, wherein wastewater contacts bacteria retained on a support surface and the dissolved oxygen concentration of the wastewater is maintained at 2.0 mg/l or less; an aeration step, wherein gas is passed through wastewater that has passed through the contact step and the dissolved oxygen concentration of the wastewater is reduced as the wastewater passes through the aeration step; a sedimentation step, wherein wastewater that has passed through the aeration step is substantially separated into treated water and sludge; and a sludge recycling step, wherein sludge from the sedimentation step is passed to the contact step. The invention also relates to a processing unit on which the aforementioned process may be operated.
    Type: Application
    Filed: November 14, 2008
    Publication date: November 4, 2010
    Inventor: Garry Hoyland
  • Patent number: 7820047
    Abstract: A wastewater treatment system has two separate but interlinked tanks containing four different zones, namely aerobic, microaerophilic, anoxic and anaerobic, for the biological treatment of the wastewater, as well as two clarification zones and a filtration unit for separation of solids from liquid. The first tank contains the aerobic, microaerophilic and anoxic zone as well as a clarification zone, while the second dank includes the anaerobic zone, a solid-liquid separation zone and a filtration unit. The aerobic zone is an airlift reactor that contains air diffusers at the bottom of the zone to introduce air into the zone. The air bubbles mix the liquid and its content of microorganisms, and provide oxygen for the aerobic biological processes that take place in this zone. Aeration also produces circulation of liquid between the aerobic zone and its adjacent microaerophilic and anoxic zones that are located at the sides and under the aerobic zone, respectively.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: October 26, 2010
    Assignee: BioCAST Systems Inc.
    Inventors: Laleh Yerushalmi, Michael J. Ogilvie
  • Patent number: 7799222
    Abstract: The invention relates to using alcalophilic sulphate-reducing bacteria selected from at least one species of a Desulfohalobiaceae or Desulfonatronum species family or from species whose gene encoding for ribosomal PARN 16S has a homology equal to or greater than 97% with a corresponding gene of any species of the Desulfohalobiaceae or Desulfonatronum species family for producing a hydrogen sulphide substantially soluble in an aqueous medium.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: September 21, 2010
    Assignee: Institut de Recherche pour le Developpement (IRD)
    Inventors: Bernard Marcel Noël Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin
  • Publication number: 20100230349
    Abstract: A unit comprising the components necessary for performing waste water treatment renders it simple and cheap to establish purification of water in small scale at remote locations.
    Type: Application
    Filed: June 20, 2008
    Publication date: September 16, 2010
    Inventor: Henrik U. Hedegaard
  • Patent number: 7794590
    Abstract: Entrapping immobilization pellets for purifying breeding water in an aquarium to breed aquatic animals, wherein microorganisms are entrapped and immobilized in an aqueous polymer gel and the entrapping immobilization pellets are colored.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: September 14, 2010
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Shinichi Yoshikawa, Naoki Abe, Kazuichi Isaka
  • Patent number: 7794599
    Abstract: A bioreactor system for microbiological treatment of wastewater including: at least one highly-flexible substrate for providing a superficial environment conducive for supporting biomass growth, the substrate including: (a) a large plurality of threads disposed in a generally longitudinal direction and including a plurality of synthetic filaments, and (b) at least two cross-support elements disposed across and associated with the plurality of threads, so as to provide support for and loosely associate the threads, wherein openings defined by (i) adjacent threads of the threads, and (ii) adjacent cross-support elements of the elements, have an aspect ratio exceeding 50 to 1.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: September 14, 2010
    Assignee: Aquarius Technologies Inc.
    Inventors: Efim Monosov, Roman Nikolaevsky, Vladimir Puziy, Maria Monosov
  • Patent number: 7790034
    Abstract: A process has steps of one or more of aerobic treatment to remove COD and nitrify a waste stream, anoxic treatment to denitrify a waste stream, anoxic treatment to remove selenium and anaerobic treatment to remove heavy metals and sulphur. The process may be used to treat, for example, FGD blow down water. The process may further include one or more of (a) membrane separation of the waste stream upstream of the anoxic digestion to remove selenium, (b) dilution upstream of the biological treatment step, (c) physical/chemical pretreatment upstream of the biological processes or dilution step to remove TSS and soften the waste stream, or (d) ammonia stripping upstream of the biological treatment steps or dilutions step. These processes may be provided in a variety of suspended growth or fixed film reactors, for example a membrane bioreactor or a fixed film reactor having a GAC bed.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: September 7, 2010
    Assignee: Zenon Technology Partnership
    Inventors: Jeffrey Gerard Peeters, William A. Bonkoski, Pierre Lucien Cote, Hidayat Husain, Timothy Michael Pickett
  • Publication number: 20100200500
    Abstract: A system for saturating a liquid with a gas followed by bubble-less delivery and mixing of the gas-saturated liquid into a gas-unsaturated liquid wherein a biological process is occurring. The system comprises a gas-saturation unit which controllably communicates with a bioreactor unit containing a gas-unsaturated liquid wherein a biological process is occurring. The gas saturation unit comprises a sealable pressure-resistant vessel for receiving therein an unsaturated liquid and wherein the liquid is saturated with a gas under pressure. The rate of introduction of gas-saturated liquid into the bioreactor unit is controllable to make it equivalent to the rate of gas consumption by the biological process occurring in gas-unsaturated liquid contained within the bioreactor unit. The invention is particularly useful for bubble-less gas delivery to open and closed bioreactor configurations for wastewater treatment processes.
    Type: Application
    Filed: November 30, 2005
    Publication date: August 12, 2010
    Inventors: Babak Rezania, Jan Oleszkiewicz, Nazim Cicek