Including Adding Ancillary Growth Medium For Microorganism Patents (Class 210/610)
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Publication number: 20120055868Abstract: Process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction which comprises: —feeding said aqueous stream containing the organic by-products of the reaction to a distillation column, obtaining two output streams: —an aqueous stream (i) exiting from the column head, enriched with alcohols having from 1 to 20 carbon atoms, preferably from 1 to 9 carbon atoms, and other optional volatile compounds; an aqueous stream (ii) exiting from the column bottom, enriched with organic acids having from 1 to 10 carbon atoms, preferably from 2 to 6 carbon atoms; —subjecting said aqueous stream (ii) to an anaerobic biological treatment obtaining a purified aqueous stream (iii); wherein said anaerobic biological treatment is carried out with a hydraulic retention time lower than 15 hours, preferably ranging from 4 hours to 10 hours, more preferably ranging from 5 hours to 8 hours.Type: ApplicationFiled: February 18, 2010Publication date: March 8, 2012Applicant: ENI S.p.A.Inventors: Giuliana Franzosi, Pietro Cesti, Roberto Paglino, Lino Carnelli, Roberta Miglio
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Publication number: 20120048802Abstract: The present invention may use exogenous oxidants to supplement use of oxygen in the treatment of municipal wastewater. The new method may implement non-aerated biodestruction using an exogenous oxidant material combined with a primary treatment municipal wastewater to reduce wastewater treatment aeration requirements. The municipal wastewater influent for treatment in an activated sludge treatment process may be combined with an exogenous oxidant material in a non-aeration process to produce a blended stream. The blended stream may be treated in a bioreactor.Type: ApplicationFiled: September 1, 2010Publication date: March 1, 2012Inventors: Jess C. Brown, Rick D. Wheadon
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Patent number: 8123944Abstract: In the field of water treatment, this invention relates to economical methods, processes and apparatus for preparing Class A bio-solids wherein: dewatering costs and energy costs are efficient, the solids product has reduced ammonia and sulfide odor, and the concentration of solids in the aqueous solids may vary from approximately 3 to approximately 90 percent. This invention presents mesMophilic and thermophilic digestion in concert, wherein mesophilic digestion incorporates strains of Thiobacillus with nitrifiers to remove sulfide(s) and ammonia from bio-solids. Chemical dewatering of thermophilic digested bio-solids is accomplished incorporating a cationic, quatemized or an anionic polyacrylamide with at least one selected from a list consisting of: an aluminum salt, an iron salt, an amine comprising a quatemized nitrogen moiety and any combination therein. A quatemized polyacrylamide is presented alone.Type: GrantFiled: February 28, 2005Date of Patent: February 28, 2012Assignee: ClearValue Technologies, Inc.Inventors: Richard A. Haase, Eileen Taylor
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Patent number: 8119003Abstract: A method for reducing the odors of an anaerobically digested dewatered biosolids or other biosolids or sludge may include separating first anaerobically digested dewatered biosolids into first and second portions, storing second anaerobically digested dewatered biosolids, removing a portion of the second biosolids, and mixing the removed second biosolids portion with the first portion of the first biosolids. The method may be implemented in a system including a separation device, first, second and third transporters, a storage area, and a mixer. The separation device may separate the first biosolids into first and second portions. The first transporter may transport the first portion to the mixer. The second transporter may transport the second portion to the storage area. The second portion may be stored in the storage area for a select time period. The third transporter may transport a portion of the stored first biosolids to the mixer for blending.Type: GrantFiled: December 3, 2008Date of Patent: February 21, 2012Assignee: CH2M Hill, Inc.Inventor: Todd Owen Williams
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Patent number: 8110106Abstract: 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: GrantFiled: August 11, 2009Date of Patent: February 7, 2012Assignee: Water Solutions, Inc.Inventors: Stephen D. Allen, Dallas K. Isom
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Patent number: 8110107Abstract: The wastewater treatment tank results in high quality effluent meeting what is referred to as “Secondary Treatment Standard. The tank deploys in combination an Facultative Aerobic Bacterial Generators (FABG) that includes a plurality of surrounding horizontally extending bacteria supporting filters disposed in a vertical array along with a second vertical filter media disposed between the FABG and the outlet port. A facultative bacteria generator and additional bacteria supporting filters are also deployed adjacent the FABG and between the second vertical filter media.Type: GrantFiled: February 20, 2009Date of Patent: February 7, 2012Inventor: Daniel E. Wickham
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Patent number: 8105489Abstract: Embodiments include treatments for acid mine drainage generation sources (10 perhaps by injection of at least one substrate (11) and biologically constructing a protective biofilm (13) on acid mine drainage generation source materials (14). Further embodiments include treatments for degradation of contaminated water environments (17) with substrates such as returned milk and the like.Type: GrantFiled: June 26, 2008Date of Patent: January 31, 2012Assignee: The University of Wyoming Research CorporationInventors: Song Jin, Paul H. Fallgren, Jeffrey M. Morris
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Patent number: 8101081Abstract: Disclosed is a method of denitrifying a solution including introducing into the solution an amount of a carbon source within a duration and at a frequency so that indigenous heterotrophic bacteria deplete dissolved oxygen in the solution and obtain oxygen from nitrate in the solution. Related apparatuses and compounds also are disclosed.Type: GrantFiled: March 24, 2008Date of Patent: January 24, 2012Assignee: Hoot Aerobic Systems, Inc.Inventors: Murphy J. Cormier, Ronald J. Suchecki, Jr., Robert K. Pertuit, Donald L. Brown, Troy L. Cormier
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Publication number: 20120012526Abstract: A method for bioremediation of contaminants, comprising contacting a contaminant with composite particles including at least one microbial available nutrient species and at least one fatty acid species, and contacting the contaminant with oxygenated water including greater than about 4 parts per million dissolved oxygen. Water may be oxygenated on-site using various oxygenating devices, such as an aspirator, aerator, impeller and diffuser. Optionally, the oxygenated water may be prepared with wastewater that is being remediated. The method may be used to maintain a dissolved oxygen concentration of greater than a setpoint concentration, such as at least 4 ppm. A preferred oxygenated water stream or source has a dissolved oxygen concentration of greater than 50 ppm. Where the contaminant is in a wastewater, the dissolved oxygen concentration in the remediation zone or the oxygenated water stream may be measured with a dissolved oxygen sensor.Type: ApplicationFiled: July 15, 2011Publication date: January 19, 2012Applicant: BIONUTRATECH, INC.Inventor: Sandra L. Hruza
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Publication number: 20110290721Abstract: This method improves and controls ex-situ or in-situ, aerobic or anaerobic digestion of organic materials and toxic or damaging compounds through increased control of multiple chemical and biological settings and conditions. The ability to control flow, natural processes, and biological activity while adjusting to individual site conditions modify results. Large quantities of modified or adjusted organisms are developed and utilized. Identification and strategic manipulation of the multiple elements of the system result in performance modifications. Energy is utilized to manipulate characteristics of a natural degradation system.Type: ApplicationFiled: July 10, 2009Publication date: December 1, 2011Inventor: Richard Lee Aho
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Patent number: 8066880Abstract: Disclosed is an apparatus for denitrifying a solution that includes a denitrification tank configured to receive a portion of the solution for a period of time. Controlling an amount, duration and frequency of introduction of polyethylene glycol into the solution promotes indigenous heterotrophic bacteria depleting dissolved oxygen in the solution and obtaining oxygen from nitrate in the solution.Type: GrantFiled: May 4, 2009Date of Patent: November 29, 2011Assignee: Hoot Aerobic Systems, Inc.Inventors: Murphy J. Cormier, Ronald J. Suchecki, Jr., Robert K. Pertuit, Donald L. Brown, Troy L. Cormier
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Patent number: 8057675Abstract: Methods for bioremediation of contaminants in water using soapstock, an acid oil of soapstock, a neutralized acid oil of soapstock or combinations thereof are described. Systems for bioremediation are also disclosed.Type: GrantFiled: August 25, 2010Date of Patent: November 15, 2011Assignee: JRW Bioremediation, LLCInventors: Shireen Baseeth, Paul Bloom, Bruce Sebree, Donovan Smith
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Patent number: 8052873Abstract: A waste treatment method includes the concentration of selected strains of bacteria in a selected medium in the presence of nutrients and water, under aerobic conditions. This concentrated batch is thereafter discharged for downstream applications in wastewater remediation. The present invention employs a cultivation chamber having inlet ports and a circular vent port that allows for adequate air introduction and heat release. Aeration is achieved by recirculation of the fluid medium from the top of the apparatus through a pipe that runs the length of the inner wall and is specially configured at the top to minimize cell damage. Fluid can be routed tangentially in both the clockwise and counterclockwise directions within the chamber. The conical bottom also has an orifice allowing for recirculation of the fluid medium tangentially to the sidewalls.Type: GrantFiled: October 30, 2008Date of Patent: November 8, 2011Assignee: Environmental Business Specialists, LLCInventors: Michael Harvey Foster, Kenneth Wayne Smith, Bronwyn Duos, Elizabeth Claire Guidotti
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Patent number: 8048668Abstract: A composting aeration system is provided with a central air duct that is placed in open fluid communication with a plurality of elongated aeration strips, which form a portion of a supporting surface for composting material. One or more aeration hubs or manifolds may be used to place the aeration strips in open fluid communication with the central air duct. The aeration hubs may be provided to selectively vary the fluid flow through the system and substantially limit the passage of debris from the aeration strips to the central air duct. Components to the system are removably coupled with one another to provide ease of cleaning and maintenance between composting operations.Type: GrantFiled: March 20, 2007Date of Patent: November 1, 2011Assignee: Bactee System, Inc.Inventors: Don V. Mathsen, Calvin R. Tininenko, Rodney J. Kleven
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Patent number: 8034243Abstract: The disclosed process and system are used for the denitrification of wastewater. The system comprises: an influent concentration analyzer for measuring an influent dissolved oxygen concentration, an influent nitrate concentration, and an influent nitrite concentration; and a feed chemical controller for providing a feed chemical at a controlled rate. The feed chemical controller is responsive to one or more output signals provided by an automated control loop that accepts input signals from the influent concentration analyzer, which input signals relate to at least two of the influent nitrate concentration, the influent nitrite concentration, and the influent dissolved oxygen concentration.Type: GrantFiled: June 18, 2010Date of Patent: October 11, 2011Assignee: Parkson CorporationInventors: Dominic Janssen, Michael McGehee
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Patent number: 7992639Abstract: Improvement in the compatibility of hydrocarbon and water is achieved by surface active agents newly synthesized by mixed microbial populations. Methods for enhancing the microbial production of surface-active agents in hydrocarbon-exposed surface waters can be achieved by supplementing the mixed microbial population with one or more carbon sources, most notably propionate. Hydrocarbon-exposed surface waters having enhanced levels of surface-active agents can be used to improve hydrocarbon recovery from subterranean formations or for remediation of hydrocarbon-contaminated sites.Type: GrantFiled: August 20, 2008Date of Patent: August 9, 2011Assignee: E. I. du Pont de Nemours and CompanyInventor: Robert D. Fallon
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Patent number: 7972768Abstract: This invention relates to systems, apparatus and methods of operating a wet combustion engine and apparatus therefore, capable of biologically burning fuels within a wet combustion chamber within a bioproactor system, including but not limited to, organic carbon containing materials especially biological, hazardous or toxic waste contaminants, in an environmentally sensitive manner. An integrated computer control system that, proactively and pre-emptively, uses feedback from bio-sensors, to monitor, record and control applicable components of the bio-system, to optimize, replenish, and sustain exponential growth of selected life-forms, including but not limited to microbes such as bacteria. In the intake cycle, a suitably prepared fuel mixture is metered into the wet combustion diffusion separation membrane chamber located within the life-support chamber of the bioproactor. In the combustion cycle, diffusion and combustion rates are monitored and timed.Type: GrantFiled: May 11, 2007Date of Patent: July 5, 2011Inventor: Thomas W. St.Lawrence
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Patent number: 7972511Abstract: A method and apparatus of anaerobic treatment which makes it possible to prevent disintegration of granular sludge and perform high-load high-velocity anaerobic treatment stably even in the case where treatment is performed under conditions where the granular sludge is easily disintegrated. In a reaction tank 20 which retains the granular sludge, nitric acid or nitrous acid is adjusted so that they have a certain concentration range. For example, nitric acid is added to the liquid to be treated by connecting the nitric acid addition path 12 to a midway point of the path of the liquid to be treated 31 which introduces the liquid to be treated to the reaction tank 20, and nitric acid is mixed with the liquid to be treated. By introducing nitric acids within the reaction tank 20, denitrifying bacteria etc. can multiply, and disintegration of the granules is prevented.Type: GrantFiled: November 10, 2009Date of Patent: July 5, 2011Assignee: Kurita Water Industries Ltd.Inventors: Takaaki Tokutomi, Motoyuki Yoda
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Patent number: 7964100Abstract: A non-toxic waste water treatment composition is provided. The waste water treatment composition is formed from: (a) an alkanolamide; (b) an ethoxylated alkylphenol, ethoxylated aryl phenol, or combination thereof; (c) a first surfactant selected from the group consisting of: an ethoxylated alcohol, a glycerol ester, a propoxylated fatty acid, an ethoxylated fatty acid, a propoxylated alcohol, an ethoxylated alcohol, a propoxylated alkyl phenol, an ethoxylated alkyl phenol, and a combination thereof; (d) a second surfactant selected from the group consisting of: a sulfosuccinate, a sulfosuccinate derivative, an imidazoline, an imidazoline derivative, and a combination thereof; and (e) optionally, a foaming agent. Methods for forming the non-toxic composition and for treating waste water with the composition are also provided. Finally an apparatus for introducing a waste water treatment composition into a waste water system is provided.Type: GrantFiled: January 14, 2008Date of Patent: June 21, 2011Assignee: Fog Free Technologies, LLCInventors: Jordan Sparks, David Vis
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Publication number: 20110139713Abstract: The invention comprises a method of treating waste water using a formulation that stimulates microorganisms and increases biological activity. Also included is the method for preparing the formulation used in the method. The formulation is both environmentally and physically safe. The formulation in the inventive method increases the respiration and reproductive rates of most bacteria. The method includes introduction of the formulation into a waste water treatment system non-selectively which enhances aerobic biological activity, thereby improving both carbonaceous and nitrogenous removals. The formulation is especially effective for endogenous situations. The non-selective nature of the formulation enhances most biological activity, thus allowing for overall performance improvements within a waste water treatment plant and in other activities.Type: ApplicationFiled: February 16, 2011Publication date: June 16, 2011Inventor: Henry B. Schur
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Publication number: 20110100906Abstract: A method of prevention of acid rock drainage excludes oxygen from waste rocks that contain ferrous sulfides by building an oxygen bio-barrier over exposed surfaces of the waste rock. The bio-barrier may be formed by applying a slurry to the rock. The slurry may contain several components such as microbial material, one or more nutrients, water or another fluid, and optionally water-absorbent material. The microbial material may include bacteria, algae, fungi or a combination thereof. Additionally, the slurry may contain one or more acid-neutralizing compounds, one or more cellulose-containing substances, and one or more UV protecting agents.Type: ApplicationFiled: July 2, 2010Publication date: May 5, 2011Applicant: ALLEGHENY-SINGER RESEARCH INSTITUTEInventors: James Christopher Post, Garth David Ehrlich, John William Costerton
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Patent number: 7931806Abstract: The present invention is directed to processes and business methods and wastewater treatment units for converting the waterborne residuals from wastewater generated by food processing plants into an ingredient suitable for use in animal feeds. The ingredient produced by the processes of the present invention has a high protein content and can be used as a replacement for conventional sources of animal feed protein such as fish meal.Type: GrantFiled: October 31, 2008Date of Patent: April 26, 2011Assignee: Oberon Frm, Inc.Inventors: Andrew J. Logan, Seth Sprague Terry, Randy Swenson
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Publication number: 20110084022Abstract: A process for treating nitrogenous wastewater contains an autotrophic denitrification reaction, a heterotrophic denitrification reaction and a COD removal reaction simultaneously and mixedly taking place in a single reactor. The nitrification reaction is caused by nitrifying bacteria, in which ammonium is oxidized into nitrite. The autotrophic denitrification reaction is caused by autotrophic denitrifying bacteria, in which ammonium used as electron donor and nitrite used as electron acceptor are converted into nitrogen gas and nitrate. The heterotrophic denitrification reaction is caused by heterotrophic denitrifying bacteria, in which nitrate and COD are consumed. It is not necessary to build two separate reactors for aerobic nitrification and anaerobic denitrification, thereby effectively reducing the fabrication and operation cost.Type: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Applicants: LEADERMAN & ASSOCIATES CO., LTD., NATIONAL CHIAO TUNG UNIVERSITYInventors: Der-Ming Lee, Ming-Kuei Chiang, Chin-Te Chen, Keng-Chuan Sung, Jih-Gaw Lin, Chih-Cheng Wang
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Patent number: 7922906Abstract: A composition including the fermentation supernatant from a fermentation of yeast is intended to be conveniently introduced through the wastewater plumbing system of a private home or other facility into a septic system servicing the home or other facility to substantially accelerate the ability of the bacteria resident in the septic system to substantially digest biologically available organic compounds present in the septic system, and methods of accomplishing the same.Type: GrantFiled: February 9, 2010Date of Patent: April 12, 2011Assignee: Advanced BioCatalytics Corp.Inventors: John W. Baldridge, Carl W. Podella
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Publication number: 20110073544Abstract: A method of mixing organic carbon with the final effluent for water treatment systems and applying the mixture to manmade stratified sand filters or natural soils to induce proper conditions for high removal of total nitrogen in the final effluent. In one embodiment, water having a concentration less than about 30 mg/l of Total Nitrogen (TN) and a BOD5 concentration of less than about 30 mg/l is mixed with a sufficient amount of dissolved carbon to cause a reduction of the nitrogen pollution in the water, and the water and dissolved carbon are percolated through a fixed bed. A method of mixing organic carbon with any water having dissolved TN and applying the mixture to manmade stratified sand filters or natural soils to induce proper conditions for high removal of total nitrogen in the applied water.Type: ApplicationFiled: September 23, 2010Publication date: March 31, 2011Inventors: Michael B. McGrath, Timothy Santos
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Publication number: 20110073543Abstract: The disclosure describes systems and methods for utilizing urea in a bioreactor as a source of nitrogen.Type: ApplicationFiled: August 31, 2010Publication date: March 31, 2011Applicant: ANTICLINE DISPOSAL, LLCInventor: Lee Shafer
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Publication number: 20110031185Abstract: A method for the combined chemical oxidation/assisted bioremediation of contaminated materials, comprising contacting a contaminated material with at least one metal chelate and at least one peroxide compound.Type: ApplicationFiled: October 18, 2010Publication date: February 10, 2011Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Noel BOULOS, Alastair McNeillie, Jason Muessig
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Patent number: 7879237Abstract: 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: GrantFiled: April 7, 2006Date of Patent: February 1, 2011Assignee: Kurita Water Industries Ltd.Inventor: Shigeki Fujishima
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Patent number: 7879235Abstract: A method for purifying a waste environment includes treating a portion of the waste environment to inactivate or diminish native microorganisms, adding augmenting microorganisms to the treated waste environment, simultaneously growing and acclimating a microbiological culture and discharging the microbiological culture to the waste environment. The method provides improved biological purification of waste and in-situ bioaugmentation.Type: GrantFiled: March 18, 2008Date of Patent: February 1, 2011Assignee: General Electric CompanyInventor: Sijing Wang
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Patent number: 7879238Abstract: A process and apparatus for treating an aqueous nitrogeneous liquor by performing ammonia oxidation and denitrification using a biosludge containing anammox bacteria and ammonia-oxidizing bacteria. The process and apparatus can obtain treated liquor of a high water quality at a high treating efficiency and a high yield of ammonium nitrogen removal with easy control of supply rate of oxygen-containing gas.Type: GrantFiled: September 29, 2005Date of Patent: February 1, 2011Assignee: Kurita Water Industries, Ltd.Inventor: Takaaki Tokutomi
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Publication number: 20110011798Abstract: 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: ApplicationFiled: September 27, 2010Publication date: January 20, 2011Inventors: Charles Borg, David Frlese, Tyze-Kuan Tim Yin
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Publication number: 20110008876Abstract: 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: ApplicationFiled: September 17, 2009Publication date: January 13, 2011Applicant: Innovative Environmental Technologies, Inc.Inventors: Michael Scalzi, Jessica McGill
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Patent number: 7862890Abstract: A biomedia apparatus comprising an elongated central core and a plurality of loops positioned along the central core adapted to collect organisms from water. The biomedia apparatus may further comprise at least one reinforcing member associated with the central core. In one embodiment, the biomedia apparatus is utilized in a trickle tower to treat wastewater. In another embodiment, the biomedia apparatus is utilized outside a power plant to minimize spat that is drawn into the plant through water intake valves.Type: GrantFiled: December 21, 2006Date of Patent: January 4, 2011Assignee: BioProcess Technologies, Ltd.Inventor: John W. Haley, III
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Publication number: 20100314312Abstract: Methods for bioremediation of contaminants in water using soapstock, an acid oil of soapstock, a neutralized acid oil of soapstock or combinations thereof are described. Systems for bioremediation are also disclosed.Type: ApplicationFiled: August 25, 2010Publication date: December 16, 2010Applicants: ARCHER DANIELS MIDLAND COMPANY, JRW BIOREMEDIATION, LLCInventors: Shireen Baseeth, Paul Bloom, Bruce Sebree, Donovan Smith
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Publication number: 20100307971Abstract: The method and device for filtering liquid in an aquarium, the filtration device made by the liquid filtration method comprises a box-shaped casing, the filtration bodies and filtration materials are set inside the casing, wherein the casing includes a water inlet set around the casing and grid panels set inside both sides of the casing; the filtration bodies include an inner filtration body set inside the grid panels and an outer filtration body set outside the grid panels; the filtration materials are filled inside the casing, between the inner filtration body and grid panels; in this way, the liquid to be filtered enters into the casing through the water inlet and flows out from the grid panels, and proceeds further from the casing via the inner filtration body, filtration materials and outer filtration body treatment.Type: ApplicationFiled: October 22, 2008Publication date: December 9, 2010Inventor: Wang Wu
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Publication number: 20100300963Abstract: 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: ApplicationFiled: August 13, 2010Publication date: December 2, 2010Inventors: Jeffrey Gerard Peeters, William A. Bonkoski, Pierre Lucien Cote, Hidayat Husain, Timothy Michael Pickett
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Patent number: 7833417Abstract: The present invention relates to methods for improving hydrocarbon-water compatibility. More specifically, the invention relates to methods for enhancing the production of surface-active agents in hydrocarbon-exposed surface waters in order to improve hydrocarbon-water compatibility. Hydrocarbon-exposed surface waters having enhanced levels of surface-active agents can be used to improve remediation of subsurface hydrocarbon-contaminated sites.Type: GrantFiled: August 20, 2008Date of Patent: November 16, 2010Assignee: E. I. duPont de Nemours and CompanyInventor: Robert D. Fallon
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Publication number: 20100282673Abstract: To provide an apparatus for treating a 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 nitric acid 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.Type: ApplicationFiled: February 6, 2009Publication date: November 11, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Naoki Ogawa, Katsushi Shibata, Kazuhiko Kuroda, Hiromitsu Nagayasu, Kuniaki Takahashi, Yoshimi Kawato, Yoshihiro Meguro
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Patent number: 7815801Abstract: 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: GrantFiled: December 4, 2008Date of Patent: October 19, 2010Assignee: APT Water, Inc.Inventors: Charles Borg, David Friese, Tyze-Kuan Tim Yin
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Patent number: 7799224Abstract: Systems and methods for wastewater treatment. A nitrate source may be dosed to a collection tank, such as a wet well, for downstream control of hydrogen sulfide levels in the wastewater. A source of a strong oxidizer may also be dosed to the wet well. The oxidizer, such as chlorite, may temporarily interrupt denitrification processes in the wet well to prevent floatation of undesirable constituents therein. The oxidizer dosage may be generally consistent with the nitrate dosage. An ORP sensor may facilitate regulation of dosing. The nitrate and the oxidizer may be present in a single mixture to be dosed to the wet well.Type: GrantFiled: January 30, 2008Date of Patent: September 21, 2010Assignee: Siemens Water Technologies Corp.Inventors: Timothy F. Matheis, Julie Ward, Winsel E. Middleton, James P. Harshman
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Publication number: 20100227381Abstract: A method for in-situ reduction of contaminants in soil that uses chemical oxidation and biodegradation.Type: ApplicationFiled: July 23, 2008Publication date: September 9, 2010Applicant: VERUTEK TECHNOLOGIES, INC.Inventors: George E. Hoag, John Collins
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Publication number: 20100219372Abstract: Process and apparatus for reducing organic content of brine comprising subjecting a brine solution to at least two purification treatments selected from electrochemical treatment, chlorinolysis, or other chemical oxidation treatment, carbon adsorption, extraction, biological treatment and chrystallizing treatment; wherein the organic content of purified brine is sufficiently low to enable sense of the purified brine in an industrial process.Type: ApplicationFiled: August 18, 2008Publication date: September 2, 2010Inventors: Bruce Hook, Dan Tirtowidjojo, Frank Koester, Sunil K. Chaudhary, Anil Mehta, Jean Chauvel, JR., Chris Christenson, Timothy Frank, Celio Lume Pereira, Steve Gluck, Glenn Lord, David West, Christine Lundstroem, Annett Horn, Istvan Lengyel
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Patent number: 7785468Abstract: Compositions for bioremediation are described. Systems and methods of using the compositions are also disclosed.Type: GrantFiled: May 5, 2008Date of Patent: August 31, 2010Assignee: Archer-Daniels-Midland CompanyInventors: Shireen Baseeth, Paul Bloom, Bruce Sebree, Donovan Smith
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Publication number: 20100193430Abstract: The present invention relates to apparatus, methods, and applications for treating wastewater collection systems contaminated with fats, oils and grease (FOG), such as wet wells, transfer or lift stations, or main sewer lines, and more particularly to biological processes for removing the FOG from wastewater. This invention further relates to apparatus and methods for growing microbes on-site at a wastewater treatment facility or FOG-contaminated wastewater collection system location, and for economically inoculating sufficient microbes to solve various treatment problems rapidly.Type: ApplicationFiled: February 1, 2010Publication date: August 5, 2010Inventor: Robert Whiteman
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Publication number: 20100170845Abstract: A method of treating a mixture of microorganisms with readily biodegradable carbon compounds (RBCs) in the form of one or more volatile fatty acids (VFAs), by first inducing the mixture microorganisms to release phosphorus and magnesium which is then tapped o as the mixture is thickened, to produce a phosphorus/magnesium-nch liquid and a phosphorus/magnesium-reduced treated mixture This treated mixture is placed in an anaerobic digester where ammonia is formed, but combines very little with phosphorus or magnesium Next the high-ammonia mixture is dewatered to produce an ammonia-rich liquid, which is combined with the phosphorus and magnesium-rich liquid and reacted to form struvite In one preferred embodiment, VFAs are formed in situ via an upstream unified fermentation and thickening (UFAT) process and added to the waste sidestream to strip phosphorus and magnesium found therein In another preferred embodiment a usable struvite product is harvested.Type: ApplicationFiled: February 2, 2009Publication date: July 8, 2010Inventor: Robert Baur
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Publication number: 20100163484Abstract: Disclosed is a method of denitrifying a solution including introducing into the solution an amount of a carbon source within a duration and at a frequency so that indigenous heterotrophic bacteria deplete dissolved oxygen in the solution and decompose oxygen from nitrate in the solution to obtain its combined oxygen. Related apparatuses and compounds also are disclosed.Type: ApplicationFiled: June 18, 2007Publication date: July 1, 2010Inventors: Murphy J. Cormier, Ronald J. Suchecki, JR., Robert K. Pertuit, Donald L. Brown, Troy L. Cormier
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Publication number: 20100133178Abstract: A composition including the fermentation supernatant from a fermentation of yeast is intended to be conveniently introduced through the wastewater plumbing system of a private home or other facility into a septic system servicing the home or other facility to substantially accelerate the ability of the bacteria resident in the septic system to substantially digest biologically available organic compounds present in the septic system, and methods of accomplishing the same.Type: ApplicationFiled: February 9, 2010Publication date: June 3, 2010Applicant: Advanced BioCatalytics CorporationInventors: John W. Baldridge, Carl W. Podella
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Publication number: 20100126930Abstract: The disclosed process and system are used for the denitrification of wastewater. The system comprises: an influent concentration analyzer for measuring an influent dissolved oxygen concentration, an influent nitrate concentration, and an influent nitrite concentration; and a feed chemical controller for providing a feed chemical at a controlled rate.Type: ApplicationFiled: January 27, 2010Publication date: May 27, 2010Inventors: Dominic JANSSEN, Michael MCGEHEE
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Publication number: 20100126929Abstract: A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. The membranes have an outside diameter of about 200 microns or less and occupy between 0.5% and 4% of the tank volume. A biofilm supported on the membranes occupies between about 40% and 80% of the volume of water to be treated in a reactor. The membranes may be oriented generally vertically and a spreader may be located near the bottom of the apparatus to disperse the membranes. Wastewater treatment processes are described. A process to dentrify 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 at 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 metres per cubic metre of tank volume.Type: ApplicationFiled: April 14, 2008Publication date: May 27, 2010Inventors: Hidayat Husain, Rocco Mazzaferro, Minggang Liu, Richard Wong, Heather Lossing, Fengshen Fan, Youngseck Hong, Reid Bayly
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Patent number: 7713414Abstract: Disclosed is a water de-contamination system, methods, and apparatus using alternating aerobic, anaerobic, and aerobic conditions, with carbon and other waste processing treatments, to remove contaminants from water. Included is an aerobic system in flow communication with an outlet from a waste tank; waste processing treatments in flow communication with liquid exiting the aerobic system and in which anaerobic conditions can be created; means for creating and maintaining anaerobic conditions either within the waste processing treatments or after fluid exits the waste processing treatments; means for return of the fluid into aerobic conditions. A fluid retaining device within which anaerobic conditions are maintained and nitrogen-containing compounds and other contaminants are processed and removed is used. Waste processing treatments are provided within or adjacent the fluid retaining device.Type: GrantFiled: August 21, 2007Date of Patent: May 11, 2010Inventor: David W. Presby