And Additional Treating Agent Other Than Mere Mechanical Manipulation (e.g., Chemical, Sorption, Etc.) Patents (Class 210/631)
  • Patent number: 8409438
    Abstract: To provide an apparatus for treating a radioactive nitrate waste liquid that includes a denitrification tank (12A) which accommodates active sludge that adsorbs or takes in the radioactive substance in a nitrate waste liquid (11) and in which an anaerobic microorganism that reduces the nitrate to nitrogen gas grows, and a reaeration tank (14) in which a denitrification-treated liquid (24) treated in the denitrification tank (12A) is aerated and mixed with active sludge. A pH adjuster (21), a carbon source (22), and nitrogen gas are supplied to the denitrification tank (12A) so as to separate a denitrified liquid into a solid content and the denitrification-treated liquid (24) by using a first solid-liquid separating film (25), and the denitrification-treated liquid (24) treated with the active sludge in the reaeration tank (14) is reaerated and separated into a solid content and a reaeration-treated liquid (27) by using a second solid-liquid separating film (28).
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: April 2, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Naoki Ogawa, Katsushi Shibata, Osamu Kohanawa, Kazuhiko Kuroda, Hiromitsu Nagayasu
  • Patent number: 8404210
    Abstract: An iron composition having a plurality of elemental components is disclosed. The major component is an iron component of at least about 68% to about 92% iron by weight. Other components by weight include manganese; cerium; carbon; phosphorous; sulfur; aluminum; silicon; chromium; copper; and zinc. Combined with layers of sand, brick chips and/or charcoal, the iron composition can be used to create a water filter for filtering inorganic arsenic species and soluble metal ions out of water. To enhance hydrous ferric oxide complexation and precipitation, the iron composition may be treated with food grade acids or a water mixture.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: March 26, 2013
    Assignee: George Mason Research Foundation, Inc.
    Inventor: Abul Hussam
  • Patent number: 8398855
    Abstract: A waste treatment process comprised of an ammonification system to convert soluble organic nitrogen into ammonia nitrogen, followed by a physico-chemical process to remove a substantial amount of the ammonia as a recovered ammonium sulfate fertilizer or ammonium hydroxide (“aqua ammonia”), and followed by an ammonia oxidation process to oxidize the remaining ammonia from the physico-chemical process. The process reduces ammonia and carbonaceous organic matter to less than 10 mg/l and recovers ammonia in the form of either ammonium sulfate or ammonium hydroxide.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 19, 2013
    Inventors: Philip Bruno Pedros, Mark Mathew Simon, Stephen Howard Brown
  • Patent number: 8394274
    Abstract: Method and system for treating a waste stream. The waste is presented in containers, such as chamber pots and other containers for liquid and other kinds of waste. such waste can be supplied at different locations and is immediately comminuted. In a separating stage, the waste stream is separated into container material and actual waste. Actual waste is fed to a bioreactor where the water is purified so that it may be re-used, if desired. If biodegradable, the container material may be subjected to a fermentation step. Heat and gases released in the process may be used for heating the fermenter and/or generating power. It is also possible to feed kitchen waste, which may optionally have been comminuted, to the fermentation. The stream leaving the fermentation may be separated into hard components which are filtered off and composted and into softer components which can be fed to the purification installation.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 12, 2013
    Assignee: Pharmafilter B.V.
    Inventor: Eduardo-Alexander Van Den Berg
  • Publication number: 20130056412
    Abstract: A membrane bioreactor uses a process and apparatus for dosing flux enhancing chemicals (FEC) to respond to temporary periods of operation that cause, or are likely to cause, membrane fouling. An FEC dosing device is provided in communication with a channel separating a process tank and the membrane unit of an MBR. A mixer in the channel rapidly mixes dosed FEC with mixed liquor flowing into the membrane tank. The dosing device is connected to sensors sensing conditions in the channel, the membrane unit or both. FEC is added to the mixed liquor flowing into the membrane unit considering conditions in the mixed liquor flowing to the membrane unit or membrane operating parameters or both. The FEC dosage may be in the range of 0.05 to 10 mg/g MLSS. The process may include steps of initiating dosing, adjusting the dosing concentration, and terminating dosing.
    Type: Application
    Filed: May 5, 2010
    Publication date: March 7, 2013
    Inventors: Sheng Chang, Sijing Wang, Boris Fernandez Ginzburg, Fengshen Fan
  • Patent number: 8388844
    Abstract: Systems and methods are provided for intimately coupling advanced oxidation process (AOP) with biodegradation for the treatment of contaminated water. The system comprises a particulate bed having carrier particles that have a microbial film effective for biodegrading contaminants in the contaminated water. An advanced oxidation reagent is irradiated by a radiation source to provide an advanced oxidation reagent effective for oxidizing recalcitrant compounds in the contaminated water to form biodegradable byproducts. The microbial film is effective for biodegrading the byproducts substantially immediately after they are produced. The carrier particles are also effective for protecting the microbial film from the radiation and/or the recalcitrant compounds.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: March 5, 2013
    Assignee: Arizona Board of Regents for and on behalf of Arizona State University
    Inventors: Michael Marsolek, Bruce E. Rittmann
  • Patent number: 8377304
    Abstract: The present invention relates to a method for treatment of sludge in water purification, the method comprising the steps: providing an enzyme mixture comprising at least one enzyme capable of digesting natural polymeric materials; and adding the enzyme mixture and at least one chelating reagent, in optional order or simultaneously, to an aqueous sludge suspension.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: February 19, 2013
    Assignee: Kemira Oyj
    Inventors: Estera Szwajcer Dey, Olof Norrlöw
  • Publication number: 20130037483
    Abstract: Disclosed is a method of conditioning mixed liquor in membrane bioreactor (MBR) systems comprising adding an effective amount of a treatment composition comprising a water soluble cationic quaternary ammonium starch or a water soluble quaternary ammonium starch/gum blend to the mixed liquor. Also disclosed is a method of improving flux in an MBR system comprising adding the treatment composition to the mixed liquor of the MBR.
    Type: Application
    Filed: March 31, 2010
    Publication date: February 14, 2013
    Inventors: Sijing Wang, Stephen R. Vasconcellos
  • Patent number: 8372283
    Abstract: A sulfurous acid/alkalinization pre-treatment method for wastewaters to condition and remove a number of chemicals/pharmaceuticals and heavy metals before the recovered treated influent undergoes further biological reduction via anaerobic and aerobic digestion.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: February 12, 2013
    Assignee: Earth Renaissance Technologies, LLC
    Inventor: Marcus G. Theodore
  • Publication number: 20130032534
    Abstract: Processes for removing hydrocarbon contaminants from soil and groundwater via enhanced biological denitrification. A contamination zone of groundwater and/or soil is identified to define a volume or zone of contaminants to be treated. A source of nitrate is applied to the contaminant zone to serve as an electronic acceptor for enhanced bioremediation of the petroleum hydrocarbons. A further carbon source, secondary to the primary contaminant hydrocarbons, is added to form a barrier about the nitrate treatment zone to stimulate degradation of any nitrate migrating from the treatment zone. A further carbon source is also added to stimulate the degradation of any residual nitrate once the primary carbon source of the contaminant hydrocarbons have been destroyed.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
  • Publication number: 20130032533
    Abstract: Integrated membrane treatment systems for treatment of an aqueous solution. In embodiments, components, such as an MBR, are integrated with means to recover energy from the system, for example from an RO concentrate, to operate the other components. In embodiments including biological treatment, RO is integrated with other components, such as an MBR with the ROs ability to remove inorganic nitrogen enabling biological treatment to be performed with only partial nitrification and the MBR operated without active pH control. In embodiments, RO is integrated with a chlorine generator to convert chlorides present in the RO concentrate for an in-situ source of oxidizing biocides for disinfection purposes. Chloramines may be generated in-situ from residual ammonia and chlorides in the RO reject. In embodiments, carrier media is employed in a membrane tank to enhance removal of residual organics by the MBR and to also improve effectiveness of membrane scouring.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Inventors: Vyacheslav Libman, Boris Eliosov
  • Publication number: 20130032535
    Abstract: Disclosed is an economical process for the purification of water containing soluble and sparingly soluble inorganic compounds using single-stage or two-stage membrane processes that integrate membrane water purification with chemical precipitation softening and residual hardness and silica removal from the membrane concentrates using ion exchange resins and silica sequestering media, respectively.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 7, 2013
    Inventor: Riad Al-Samadi
  • Publication number: 20130020258
    Abstract: The present invention includes a system for recycling wash water, having a first separator configured to separate solids from wash water, a second separator configured to separate oil from wash water, a bioreactor configured to bacterially consume solids from wash water, a third separator configured to further separate solids from wash water, an oxidation chamber configured to sterilize and oxygenate wash water, an aeration tray configured to further oxygenate wash water, a storage tank configured to store wash water, and a pump configured to pump wash water from the storage tank to the bioreactor. The present invention also includes a process and method associated with the use and function of the system.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 24, 2013
    Applicant: RGF Environmental Group, Inc.
    Inventor: Walter B. ELLIS
  • Publication number: 20130015129
    Abstract: A method enhancing biological digestion of wastewater sludge is provided. The method uses chlorine dioxide to accelerate and improve the efficiency of aerobic or anaerobic digestion.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 17, 2013
    Inventor: Frederick P. Mussari
  • Publication number: 20120325741
    Abstract: Disclosed is a system and method for treating wastewater. The system includes a bioreactor which defines a basin for receiving wastewater to be treated; a membrane module in fluid communication with the bioreactor; and a dissolution tank. The tank includes a pressure vessel that contains a portion of the wastewater to be treated and provides a regulated, pressurized gas head space above the wastewater. The tank also includes at least one liquid spray nozzle that permits passage of the wastewater into the gas head space of the pressure vessel and an outlet for discharging the wastewater having a desired gas concentration from the pressure vessel. The system also includes a pumping mechanism for supplying the wastewater to the spray nozzle of the tank such that fluid droplets are formed in the gas head space and the gas contained within the pressurized head space is dissolved into the wastewater.
    Type: Application
    Filed: March 8, 2012
    Publication date: December 27, 2012
    Inventors: Gregory Scott Osborn, Clay R. Thompson, Marty D. Matlock
  • Patent number: 8323495
    Abstract: The disclosure describes a novel method for operating a bioreactor and filtration system. The method adds excess iron to the bioreactor to improve the overall operation and efficiency of the bioreactor/filtration system.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: December 4, 2012
    Assignee: Anticline Disposal, LLC
    Inventor: Lee L. Shafer
  • Patent number: 8323497
    Abstract: Compositions and methods for the removal of selenium species from water containing high-salt concentrations and/or petroleum contaminants are described. The compositions and methods use a selenium-reducing microorganism adapted to adverse environments.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: December 4, 2012
    Assignee: Aptwater Inc.
    Inventors: Charles Borg, David Friese, Tyze-Kuan Tim Yin
  • Patent number: 8323487
    Abstract: A method for producing a nitrite type nitrification-reactive sludge includes the step of subjecting an activated sludge to alkali treatment so that the pH of the activated sludge containing at least the ammonium oxidizing bacteria and nitrite oxidizing bacteria can be 10 or higher, in order to accumulate ammonium oxidizing bacteria with higher priority in the activated sludge.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: December 4, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hajime Ikuta, Tatsuo Sumino
  • Patent number: 8318017
    Abstract: A membrane distillation bioreactor (100) is provided for treating contaminated inflow such as wastewater. A contaminated inflow may be treated by biodegrading a contaminant in the inflow with a biological agent in the bioreactor to produce a lower contaminant inflow, which may be distilled, by membrane distillation, through a distillation membrane (108) in fluid communication with the bioreactor, to produce an outflow. The inflow may be wastewater. The outflow may be purified water. In one embodiment, the membrane may be located in the reaction chamber of the bioreactor vessel (102) and may be submerged in the mixed liquor. In a different embodiment suitable for wastewater treatment, the membrane may be located external to the bioreactor. The bioreactor may be aerobic or anaerobic.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 27, 2012
    Assignee: Nanyang Technological University
    Inventors: Anthony G. Fane, Jirachote Phattaranawik, Fook-Sin Wong
  • Publication number: 20120279920
    Abstract: A wastewater treatment system is provided comprising a first biological reaction zone, a second biological reaction zone and a membrane operating system. The first biological reaction zone is constructed and arranged to receive and treat the wastewater. The second biological reaction zone includes a separation subsystem and is constructed and arranged to receive effluent from the first biological reaction zone. A suspension system for adsorbent material is provided in the second biological reaction zone. The membrane operating system is located downstream of the second biological reaction zone and is constructed and arranged to receive treated wastewater from the second biological reaction zone and discharge a membrane permeate.
    Type: Application
    Filed: June 15, 2010
    Publication date: November 8, 2012
    Inventors: William G. Conner, Mohammed A. Al-Hajri, Thomas E. Schultz, Michael Howdeshell, Chad L. Felch, Matthew Patterson, Samuel Shafarik, Curt Cooley
  • Patent number: 8298424
    Abstract: Disclosed herein is an anaerobic digester configured to include input reactors into which livestock wastewater or food waste (hereinafter, ‘inflow’) is introduced; regions of an anaerobic digestion reactor designed for the inflow passing through an input reactor to perform methane fermentation to produce and transfer biogas simultaneously into the next region; an inlet pipe into which sludge liquid is drawn; an inlet pipe into which activated liquid is drawn; a biogas capturing device; a first heat exchange tube to allow the sludge liquid to perform heat exchange with a new inflow; regions of a subsequent treatment reactor to allow the sludge liquid whose heat exchange is completed to be introduced and to treat gas odor components generated from the sludge liquid; and a liquid-composting reactor in which the emitted sludge whose odor components have been removed is stored.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: October 30, 2012
    Inventors: Sang Bum Lee, Ke Ho Lee
  • Patent number: 8293108
    Abstract: A method for producing biofuels is provided. A method of making biofuels includes dewatering substantially intact algal cells to make an algal biomass, extracting neutral lipids from the algal biomass, and esterifying the neutral lipids with a catalyst in the presence of an alcohol. The method also includes separating a water soluble fraction comprising glycerin from a water insoluble fraction comprising fuel esters and distilling the fuel esters under vacuum to obtain a C16 or shorter fuel esters fraction, a C16 or longer fuel ester fraction, and a residue comprising carotenoids and omega-3 fatty acids. The method further includes hydrogenating and deoxygenating at least one of (i) the C16 or shorter fuel esters to obtain a jet fuel blend stock and (ii) the C16 or longer fuel esters to obtain a diesel blend stock.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: October 23, 2012
    Assignee: Heliae Developmet, LLC
    Inventor: Aniket Kale
  • Publication number: 20120261338
    Abstract: Formation of scale in a wastewater treatment system upstream of a struvite precipitation reactor is inhibited by injection of one or more of CO2 and H3PO4. The injection may be performed at multiple locations. Injection may be controlled based on one or more of pH, fluid flow and fluid pressure. Scale may be inhibited while maintaining production of precipitated struvite.
    Type: Application
    Filed: February 15, 2012
    Publication date: October 18, 2012
    Inventors: Matt Kuzma, Robert James Baur, Ram Prasad Melahalli Sathyanarayana
  • Patent number: 8282827
    Abstract: A method of producing methane, an organic based fertilizer and usable water from animal waste includes the step of separating the animal waste into liquid waste and solid waste. The solid waste is subjected to anaerobic digestion to produce methane and a wet by-product. The wet by-product is pressed to into a filter cake which is pelletized into the organic based fertilizer. The liquid waste is clarified to produce a supernatant and a sludge which is pressed into a filter cake together with the wet by-product. Ammonia is extracted from the supernatant to produce ammonium sulfate and an aqueous solution. The aqueous solution is filtered to produce a concentrate and water filtrate. The water filtrate may be used as drinking or washing water. The ammonium sulfate and concentrate may be used to supplement to the solid waste which is pelletized into the organic based fertilizer. In alternative embodiments a portion of the supernatant and aqueous solution may be used as a liquid fertilizer.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: October 9, 2012
    Assignee: ATD Waste Systems Inc.
    Inventor: J. Victor Van Slyke
  • Publication number: 20120241376
    Abstract: A process for removing selenium is described in which selenium is removed from an aqueous source for discharge into a lake, pond, river or stream by a combination of biological reduction of selenium followed by adsorption. The aqueous source first passes through a bioreactor which reduces the selenium compounds in solution to organic selenium and selenide. An adsorber, such as activated carbon, is then used to remove the organic selenium and selenide from solution. Optionally, a pump introduces a carbon source such as molasses to the bioreactor to initiate and sustain microbiological metabolic processes.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 27, 2012
    Inventors: Robert Louis Baldwin, JR., Robert Louis Baldwin, SR., Thomas Charles Jageman, JR., John Andrew Owsiany, Ryan Michael Schubenski, Joseph Wayne Swearman
  • Publication number: 20120228218
    Abstract: The present invention relates to a process for workup of nitrite-comprising alkaline process wastewaters from the nitration of aromatic compounds, wherein the alkaline process wastewater is acidified by addition of acids and the offgas which comprises nitrogen oxides and escapes from the acidified process wastewater is worked up, comprising the steps of a) acidifying the process wastewater by adding acid to a pH below 5, which forms an organic phase which separates out, an acidic aqueous phase and a gaseous NOx-containing phase, and b) removing the gaseous NOx-containing phase.
    Type: Application
    Filed: December 13, 2010
    Publication date: September 13, 2012
    Applicant: BASF SE
    Inventors: Ruediger Fritz, Renate Hempel, Michael Zoellinger, Holger Allardt, Reiner Reetz
  • Patent number: 8252183
    Abstract: An exemplary method of treating nitrogen-contaminated wastewaters, especially those with high ammonia concentrations, according to the invention includes the steps of ammonia degassing and recapture, and of nutrient assimilation with microalgae. Organic nitrogen, organic carbon, phosphorus, heavy metals and other compounds may also be removed in different embodiments of the invention. Examples of applicable wastewaters include landfill leachate, municipal solid waste anaerobic digester effluent, agricultural anaerobic digester effluent, municipal wastewaters, agricultural wastewaters, and other similarly contaminated wastewaters.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: August 28, 2012
    Assignee: Kent BioEnergy Corporation
    Inventors: Michael J. Massingill, Gregory Schwartz, Christian-Dominik Henrich, Timothy R. Wells, Wayne Sterud, James Carlberg, Jon C. Van Olst
  • Publication number: 20120174639
    Abstract: A forward osmosis system and process for producing fertilizer and recycling water from a food waste methane digester wastewater stream. The process includes: forming a residual wastewater stream from food waste using digesters; coarse filtering the residual wastewater stream; acid treating the filtered, residual wastewater stream so that ammonium is retained therein; diverting the acid treated, filtered, residual wastewater stream to one side of at least one forward osmosis membrane; and concentrating the acid treated, filtered, residual wastewater stream to form fertilizer by contacting a saturated salt brine in a forward osmosis draw loop to an opposite side of the at least one forward osmosis membrane and osmotically pulling water across the at least one forward osmosis membrane from the acid treated, filtered, residual wastewater stream to the saturated salt brine, thereby diluting the saturated salt brine.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 12, 2012
    Inventor: John R. Herron
  • Patent number: 8211305
    Abstract: Disclosed is a system for renovating process water, especially during the production of paper. Said system comprises at least one process water renovation unit, at least one of which is provided with an anaerobic reactor spiked with anaerobic microorganisms as well as a lime elimination unit. Also disclosed is a method for renovating process water, particularly during the production of paper, which encompasses at least one process water renovation step in which at least some of the process water continuously delivered to the process water renovation step is subjected to a purification step in an anaerobic reactor that is spiked with anaerobic microorganisms and to a deliming step.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 3, 2012
    Assignee: Meri Entsorgungstechnik fuer die Papierindustrie GmbH
    Inventors: Lucas Menke, George Troubounis
  • Publication number: 20120152837
    Abstract: Provided is a biological treatment method of organic-matter-containing water in which a decrease in the permeation flux of a membrane in a membrane-separation activated-sludge process can be effectively suppressed. A biological treatment method of organic-matter-containing water includes introducing organic-matter-containing water containing organic matter into a biological treatment tank, mixing the organic-matter-containing water with activated sludge, biologically treating the organic-matter-containing water, and subjecting a mixed liquor of the organic-matter-containing water and the activated sludge to membrane separation, wherein an iron salt and a phenolic resin are added to the raw water. Substances (for example, metabolites of activated-sludge organisms) that cause a decrease in the permeation flux of a separation membrane become insoluble due to the flocculating effect by the iron salt and bonding with the phenolic resin.
    Type: Application
    Filed: September 29, 2009
    Publication date: June 21, 2012
    Inventors: Yu Tanaka, Minoru Watanabe
  • Publication number: 20120152546
    Abstract: A system for treating produced water, for example from a SAGD bitumen production operation, has a treatment unit using chemical oxidation (CO) or electromagnetic treatment (ET) to destroy or degrade organics in the produced water. The treatment module may use CO or ET in combination with biological treatment or sorption processes or both. When the treatment module is used upstream of a steam generator, it reduces fouling in the steam generator and in any blowdown water treatment device. A brine concentrator or a crystallizer may be used to treat the blowdown water. The treatment module may be used in combination with a nanofiltration (NF) or reverse osmosis (RO) membrane filter. Optionally, the produced water may be treated with an ET process such as microwaves directly upstream of a steam generator or upstream of a concentrator or crystallizer in a blowdown water stream.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 21, 2012
    Inventors: David M. Polizzotti, Brian Christopher Moore, Vasile Bogdan Neculaes, Abdul Rafi Khwaja, Matthew Alan Petersen
  • Patent number: 8192626
    Abstract: A wastewater treatment method employing chemicals for disinfection, and precipitation of suspended solids, heavy metals and phosphates before subsequent aerobic bacterial biological treatment using Nitrosomonas and Nitrobacter bacteria to remove ammonia and nitrates/nitrites and BOD compounds to produce recovered treated wastewater suitable for open water discharge.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: June 5, 2012
    Assignee: Earth Renaissance Technologies, LLC
    Inventors: Marcus G. Theodore, Larry P. Wardle
  • Publication number: 20120125840
    Abstract: Systems and methods for performing anaerobic digestion of biomaterials using a clarifier, a batch reactor, and/or a digester are disclosed. The clarifier performs pretreatment processing of biomaterial to improve anaerobic digestion. The batch reactor and/or the digester are coupled to the clarifier and are configured to digest the processed biomaterial. A control system for an anaerobic digestion process includes a flow control system, a temperature control system, and a totalization system. The flow control system controls the flow of biomaterial and the delivery of chemical agents to the biomaterial based on conductivity, temperature, pressure, and/or composition of the biomaterial. The temperature control system includes a heat source and heat exchangers that control the temperature of the biomaterial.
    Type: Application
    Filed: January 28, 2012
    Publication date: May 24, 2012
    Inventor: Charles Satish Smith
  • Publication number: 20120125841
    Abstract: Filtration apparatus (102) is provided for the treatment of waste water, sewage and/or effluent. The apparatus includes a housing (4) having at least a first filter layer (16) provided therein. The first filter layer (16) includes biological filtration-means including one or more organisms and a substrate material to filter waste water, sewage and/or effluent located thereon, passing thereover or therethrough in use. The apparatus includes at least a second filter layer (20) for filtering fluid that has passed through the at least first filter layer. The second filter layer (20) includes an absorbent material that is different to the substrate material of the at least first filter layer (16).
    Type: Application
    Filed: June 11, 2010
    Publication date: May 24, 2012
    Inventor: Colin Gavin Edward Webb
  • Patent number: 8173020
    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: Grant
    Filed: March 21, 2011
    Date of Patent: May 8, 2012
    Assignee: APTwater, Inc.
    Inventor: Reid H. Bowman
  • Patent number: 8153007
    Abstract: A method of treating a wastewater, containing the steps of: filtering a wastewater supplied into an activated sludge tank and biologically-treated therein, in a membrane module installed outside the activated sludge tank; chemical-cleaning the membrane module with a membrane-cleaning agent while the membrane module is disconnected from the activated sludge tank with a valve; and water-flushing off the substances contained in the wastewater that react with the membrane-cleaning agent and form hazardous substances and/or operation-inhibiting substances, or the membrane-cleaning agent remaining in the membrane module with water while the membrane module and the activated sludge tank are disconnected from each other by the valve, wherein the membrane-cleaning agent is prevented from contacting the substances contained in the wastewater that react with the membrane-cleaning agent and form hazardous substances and/or operation-inhibiting substances.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: April 10, 2012
    Assignee: Toyo Engineering Corporation
    Inventor: Hiroaki Ikebe
  • Publication number: 20120080374
    Abstract: In one embodiment, a method of treating a source water containing at least one toxin is provided, the method comprising: (i) exposing a source water to a gas comprising ozone under a condition that promotes an interaction between the toxin and the ozone; and then (ii) subjecting the treated source water to a biological treatment.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 5, 2012
    Inventors: Andy Komor, Keisuke Ikehata
  • Patent number: 8147694
    Abstract: The induction of reducing conditions and stimulating anaerobic process through the addition of species of seaweed (Dulse, Nori, Ascophyllum nodosum, and Kelp) to accomplish accelerated dechlorinization of soil and groundwater contaminated with chlorinated solvents and heavy metals.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: April 3, 2012
    Assignee: Innovative Environmental Technologies, Inc.
    Inventors: Michael Scalzi, Jessica McGill
  • Patent number: 8147695
    Abstract: A process for removing phosphorus from wastewater wherein an iron or aluminum salt is added to the wastewater. The iron or aluminum salt results in the precipitation of certain iron or aluminum species that include phosphorus adsorption sites. These iron or phosphorus species are settled and become a part of sludge produced in the course of the wastewater treatment process. By recycling substantial portions of the sludge, the concentration of these iron or aluminum species in the wastewater is increased. This increased concentration results in the presence of large quantities of unused phosphorus adsorption sites that attract and adsorb phosphorus, resulting in phosphorus being removed from the wastewater.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 3, 2012
    Assignee: I. Kruger Inc.
    Inventors: Kashi Banerjee, Charles D. Blumenschein, John Charles Schrader
  • Patent number: 8147700
    Abstract: A wastewater treatment system and method comprises a treatment chamber having a filtration membrane spanning an effluent outlet of the chamber and a pair of electrodes in the treatment chamber so as to be in communication with the wastewater. An electrical potential difference is applied between the electrodes such that one of the electrodes functions as an anode and one of the electrodes functions as a cathode. A flow of fluid is induced out of the treatment chamber through the filtration membrane to the effluent outlet. Accordingly the treatment chamber is arranged to biologically treat the wastewater, electrochemically treat the wastewater and mechanically filter the wastewater through the filtration membrane commonly therein.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 3, 2012
    Inventors: Maria Elektorowicz, Jan Oleszkiewcz, Khalid Bani-Melhem
  • Publication number: 20120074058
    Abstract: Provided herein is an efficient solid-liquid separation method for bio-waste material treatment. The method contemplates the addition of certain cationic polyelectrolytes (or “polymers” as used herein) to the bio-waste materials prior to solid-liquid separation, such as centrifugation, thus greatly facilitate the subsequent solid-liquid separation step. The liquid portion, once separated from solid portion using the subject methods, can be subjected to further downstream nutrient recovery manipulations (such as phosphate precipitation and ammonia stripping) with potentially better efficiency, or may be used directly in a number of operations, such as a liquid diluent for feedstocks in an ethanol plant.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 29, 2012
    Inventors: Le Zeng, Xiaomei Li
  • Patent number: 8142658
    Abstract: Processes for microbial digestion of organic material, and preparation of substrates for microbial digestion, suitable for the production of biomethane, from municipal and industrial waste water or from municipal or agricultural waste. In addition, a method for identifying a composition of matter that is suitable for microbial digestion, more particularly anaerobic digestion and/or mixed aerobic and anaerobic digestion. Also, a system and process for detoxifying organic wastes, such as those which may be present in waste water from industrial processes.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: March 27, 2012
    Assignee: 6Solutions, LLC
    Inventor: Cecil T. Massie
  • Publication number: 20120061317
    Abstract: A method of removing a contaminant from liquid is provided. The method includes adding magnetic biological particles to a liquid containing a contaminant, sorbing the contaminant to the magnetic biological particles, and separating the sorbed contaminant from the liquid by applying a magnetic field to the magnetic biological particles. In some versions, the magnetic biological particles are pollen grains having added magnetic material. Also provided are methods of making magnetic biological particles, and compositions containing magnetic biological particles.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Inventors: Beng Joo Reginald Thio, Kristin Clark, Arturo Alejandro Keller
  • Publication number: 20120061318
    Abstract: The invention relates to an apparatus for thermal hydrolysis of organic matter, wherein a heating element (2) and a cooling element (4) are provisioned to heat up or cool down the organic matter. Heat exchangers are provisioned as heating element (2) and cooling element (4) which exchange heat between the organic matter and a medium. The organic matter and the medium are separate relative to each other within the heat exchangers. A throttle (9) and a decompression tank (10) are provisioned between the heating element (2) and the cooling element (4).
    Type: Application
    Filed: March 25, 2010
    Publication date: March 15, 2012
    Applicant: STULZ H+E GMBH
    Inventor: Marianne Buchmuller
  • Patent number: 8133394
    Abstract: Wastewater can be purified in a device, which includes a cup-shaped vessel, having a wastewater inlet tube for the water at a certain level and an outlet tube at a lower level than the inlet tube, and a horizontal distribution disc, which vertically divides the vessel, has at least one opening and is provided with a substantially vertical distribution tube for receiving the water from the inlet tube. Water above the distribution disc is pumped through a filter head with a filter. Filtered water is let out through the outlet tube, whereas unfiltered water is transferred back to the distribution tube. Flocculation agent is added to the unfiltered water before reaching the distribution tube.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: March 13, 2012
    Assignee: B G Consulting HB
    Inventor: Bert Gustafsson
  • Publication number: 20120055872
    Abstract: A process for treating wastewater containing nitro-hydroxy-aromatic compounds using oxidative sub-critical conditions. The wastewater to be treated is adjusted to contain excess hydroxide equivalent to greater than three moles of free hydroxide per mole of total nitro-hydroxy-aromatic compounds, and a sub-stoichiometric amount of an oxidant is supplied to the wastewater. The nitro-hydroxy-aromatic compounds may include nitro-phenol salts or nitro-cresol salts.
    Type: Application
    Filed: May 14, 2010
    Publication date: March 8, 2012
    Inventor: Michael Gattrell
  • Publication number: 20120055871
    Abstract: The invention relates to an electrolysis method that uses iron particles and an aqueous solution containing sodium hypochlorite. The method is characterised in that said method uses direct current, the iron particles form the anode (46) and the sodium hypochlorite concentration of the aqueous solution is at least 1 g/L. The invention further relates to a method and to a plant for the pretreatment of raw water for producing water that can then be easily treated in order to produce drinkable water or a so-called technical water that cannot be consumed but that can be used for household, agricultural or industrial applications such as cleaning, washing, laundry, flushing, garden watering or irrigation.
    Type: Application
    Filed: March 4, 2010
    Publication date: March 8, 2012
    Inventor: Jean-Marie Fresnel
  • Publication number: 20120034594
    Abstract: The present disclosures provides isolated or purified compounds, each of which bind to a metal atom. Generally, the compounds are small in size (e.g, molecular weight of less than about 1 kDa) and peptidic in nature, inasmuch as the compounds comprise amino acids. In some embodiments, the compound comprises a structure of Formula I: M1-P1-M2-P2 wherein each of P1 and P2 is a peptide comprising at least two amino acids, M1 is a first metal binding moiety comprising a substituted imidazolone ring, M2 is a second metal binding moiety comprising a substituted oxazolone ring, and wherein M1 and M2 bind to a single metal atom. Also provided are related complexes, conjugates, cells which synthesize the compounds of the present disclosures, substantially homogenous cultures thereof, kits and compositions, and methods of making or using the materials of the present disclosures.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Inventors: Jeremy D. Semrau, Warren Gallagher, Sukhwan Yoon, Jeongdae Im, Alan A. DiSpirito, Sung-Woo Lee, Scott Hartsel, Marcus T. McEllistrem
  • Patent number: 8110106
    Abstract: An apparatus for the anaerobic digestion of solid waste is disclosed. The apparatus includes a pre-digestion treatment chamber and an anaerobic digester chamber coupled to the pre-digestion treatment chamber. A liquid suspension of solid waste is pretreated under aerobic conditions by heating to a desired pre-digestion temperature. One or more chemical or biological additives are added to the suspension of solid waste to improve the anaerobic digestibility of the solid waste. This may include enzymes to destruct poorly digestible solids and/or materials to provide a desired C:N ratio in the solid waste. The apparatus may include mixers, heaters, chemical or biological additives as needed, various sensors and probes, and a control system to monitor and control the anaerobic digestion process and maintain microbial health of the digester.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: February 7, 2012
    Assignee: Water Solutions, Inc.
    Inventors: Stephen D. Allen, Dallas K. Isom
  • Patent number: 8105490
    Abstract: A water or wastewater treatment system to reduce phosphorus or other pollutant concentrations in water or wastewater may include an optional primary treatment stage in fluid communication with a biological secondary treatment stage. The secondary treatment stage may, in turn, be fluidly connected with a tertiary treatment stage, which may include a chemical treatment portion for reducing phosphorus or other pollutants to desired levels. The precipitated phosphorus and other solids or sludge produced from the chemical treatment portion may be recycled upstream for reuse in the primary, secondary, and/or tertiary treatment stages. Such recycle may reduce the amount of added chemicals required in the tertiary treatment stage to phosphorus or other pollutants to desired amounts.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: January 31, 2012
    Assignee: CH2M Hill, Inc.
    Inventor: Glen T. Daigger