And Additional Treating Agent Other Than Mere Mechanical Manipulation (e.g., Chemical, Sorption, Etc.) Patents (Class 210/631)
  • Patent number: 10093568
    Abstract: A method for wastewater treatment which comprises (a) separating and/or collecting urine from the wastewater for pretreatment, (b) removing phosphorus from urine using seawater, (c) optionally oxidizing nitrogen from urine, and (d) discharging the phosphorus-removed and/or nitrogen-oxidized urine to a sewer.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: October 9, 2018
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Guanghao Chen, Hamish Robert Mackey, Feng Jiang, Ho Kwong Chui
  • Patent number: 10046996
    Abstract: A multistage residential wastewater treatment system. The preferred system has three chambers. Wastewater flows into the first chamber via an inflow line. Primarily anaerobic treatment occurs in the first chamber. From the first chamber, wastewater flows into a second chamber. The second chamber is aerated, and primarily aerobic treatment occurs there. Substantially fully treated wastewater flows from the second chamber to the third chamber. The third chamber is substantially quiescent and anaerobic. Most remaining solids settle out in the third chamber. A bactericide pump is configured to introduce batch doses of bactericide in the desired volume to the third chamber at set intervals. After sufficient delay following introduction of the bactericide to allow for substantially complete toxicity to the bacteria in third chamber, effluent is pumped out of the tank by an effluent pump via an effluent line. The effluent pump preferably powers the bactericide pump.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 14, 2018
    Inventor: Joe W. Lacey, II
  • Patent number: 9981272
    Abstract: Apparatus featuring synthetic bubbles or beads and a flotation stage. The synthetic bubbles or beads are configured with a polymer or polymer-based material functionalized to attach to the valuable material in a mixture to form at least some enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be transported through the mixture based at least partly on a characteristic of the synthetic bubbles or beads. The flotation stage has the mixture containing valuable material, and is configured to receive the synthetic bubbles or beads and to provide the at least some enriched synthetic bubbles or beads having the valuable material attached thereto based at least partly the characteristic of the synthetic bubbles or beads.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: May 29, 2018
    Assignee: CiDRA CORPORATE SERVICES, INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Douglas H. Adamson
  • Patent number: 9902635
    Abstract: A method and a system as described herein, including a method and system of treating ammonium containing water in a deammonification MBBR process where partial nitritation and anaerobic ammonium oxidation may occur simultaneously in a biofilm, or in an integrated fixed film activated sludge process where partial nitritation takes place in a suspended growth fraction and anaerobic ammonium oxidation occurs in a biofilm. The method and system include controlling airflow to the reactor to achieve a target pH, a target alkalinity, a target specific conductivity, and/or a target ammonium concentration in the reactor or in the effluent.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 27, 2018
    Assignee: Hampton Roads Sanitation District
    Inventors: Charles Bott, Stephanie Klaus
  • Patent number: 9890067
    Abstract: The invention relates to a wastewater treatment plant, specifically a modular plant for the treatment of organic wastewater, in which the number of devices depends on the amount of water to be treated and on the quality of the starting water and that required for the water at the end of the process. The treatment plant includes multiple devices, each representing a treatment step, and the devices can be connected in series, in parallel or in series and parallel. In addition, the devices used in the process are designed to require a minimum amount of maintenance, owing to the inclusion of a self-cleaning system. Since the system requires minimal power and maintenance, it is considered optimal for use in rural communities, livestock farms or buildings.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 13, 2018
    Inventor: Jose Rogelio Perez Monsrreal
  • Patent number: 9834460
    Abstract: Method and system is described to enhance operations for managing the hydrocarbon release. The method and system for managing a hydrocarbon release includes one or more vessels configured to collect mineral fines, to transfer the mineral fines to a hydrocarbon, and inject the mineral fines into the hydrocarbons at or near the hydrocarbon release location. The method may include subsea dredging or sediment collection in the vicinity of the mineral fines injection. This approach may be utilized to provide a continuous supply of material without interruption to injection operations.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: December 5, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Timothy J. Nedwed, David A. Palandro, Amy C. Tidwell
  • Patent number: 9827574
    Abstract: Apparatus for use in, or forming part of, a separation process to be implemented in separation processor technology, the apparatus comprising synthetic bubbles or beads configured with a polymer or polymer-based material functionalized to attach to a valuable material in a mixture so as to form an enriched synthetic bubbles or beads having the valuable material attached thereto, and also configured to be separated from the mixture based at least partly on a difference in a physical property between the enriched synthetic bubbles or beads having the valuable material attached thereto and the mixture.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 28, 2017
    Assignee: CiDRA CORPORATE SERVICES, INC.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Patent number: 9816716
    Abstract: Devices are provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in a liquid-containing storage tank (e.g. water-storage tank). The devices include a first fluid flow path that is physically isolated from a second fluid flow path and a convection device for moving a first fluid along the first fluid flow path toward at a desired destination and for exhausting the first fluid at the desired destination at a desired velocity. Methods are also provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in liquid-containing storage tanks (e.g. water-storage tanks). The methods involve blowing a first fluid through a ventilation device into a liquid-containing storage device at a velocity sufficient to achieve a desired mass transfer rate of volatile chemicals from the liquid in the liquid-containing storage device to air in the headspace and flowing the contaminated air back through the ventilation device.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 14, 2017
    Assignee: PAX Water Technologies Inc.
    Inventors: Peter Fiske, Robin Giguere, Ethan Brooke
  • Patent number: 9726391
    Abstract: Devices are provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in a liquid-containing storage tank (e.g. water-storage tank). The devices include a first fluid flow path that is physically isolated from a second fluid flow path and a convection device for moving a first fluid along the first fluid flow path toward at a desired destination and for exhausting the first fluid at the desired destination at a desired velocity. Methods are also provided for ventilating and/or removing volatile chemicals from liquid (e.g. water) stored in liquid-containing storage tanks (e.g. water-storage tanks). The methods involve blowing a first fluid through a ventilation device into a liquid-containing storage device at a velocity sufficient to achieve a desired mass transfer rate of volatile chemicals from the liquid in the liquid-containing storage device to air in the headspace and flowing the contaminated air back through the ventilation device.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 8, 2017
    Assignee: PAX Water Technologies Inc.
    Inventors: Peter Fiske, Robin Giguere, Ethan Brooke
  • Patent number: 9580315
    Abstract: A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 28, 2017
    Assignee: ThermoChem Recovery International, Inc.
    Inventors: Ravi Chandran, Daniel Michael Leo, Shawn Robert Freitas, Dave G. Newport, Hamilton Sean Michael Whitney, Daniel A. Burciaga
  • Patent number: 9499404
    Abstract: A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: November 22, 2016
    Assignee: ThermoChem Recovery International, Inc.
    Inventors: Ravi Chandran, Daniel Michael Leo, Shawn Robert Freitas, Dave G. Newport, Hamilton Sean Michael Whitney, Daniel A. Burciaga
  • Patent number: 9221702
    Abstract: A system and process for enhancing total organic carbon (“TOC”) removal from raw, untreated water while maintaining optimum membrane filter performance. The present invention overcomes many of the disadvantages of prior art water filtration systems by controlling the pH level of the water, prior to the water being directed through said membrane filter, so that the particulate charge of the water aligns with the electromagnetic surface charge of membrane filter. Maintaining the particulate charge of the water within an optimum charge window for the particular membrane filter enhances the membrane filter's performance by decreasing the fouling rate of the membrane filter.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 29, 2015
    Assignee: H2O INNOVATION INC.
    Inventor: Gregg A. McLeod
  • Patent number: 9133048
    Abstract: A seawater desalination method of the present invention includes the steps of: obtaining ultrafiltration membrane-treated water by subjecting seawater (2) to an ultrafiltration membrane treatment; obtaining membrane bioreactor-treated water by subjecting organic wastewater (1) to a membrane bioreactor treatment; obtaining mixed water by mixing the ultrafiltration membrane-treated water and the membrane bioreactor-treated water; obtaining ultraviolet irradiation-treated water by subjecting the mixed water to an ultraviolet irradiation treatment; and subjecting the ultraviolet irradiation-treated water to a reverse osmosis membrane treatment.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: September 15, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Satoru Ishihara, Hiroshi Iwahori, Yuuji Yamashiro
  • Patent number: 9096447
    Abstract: A water treatment system (50) utilizing granular activated carbon (GAC) for the removal of organic contaminants in a process water circuit (52), and including a carbon regeneration circuit (54) in fluid communication with the process water circuit. The carbon regeneration circuit may include a dedicated regeneration vessel (16), or the regeneration process may proceed within a GAC/water contactor (58) of the process water circuit. A process is described wherein spent GAC from the water treatment system is regenerated within the system with an oxidation process that minimizes damage to the carbon granules.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 4, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Chad L. Felch, Kurt M. Knuth, Robert J. Wenta, Thomas E. Schulz, Bryan J. Kumfer
  • Patent number: 9073764
    Abstract: A low concentration wastewater treatment system is provided that includes a high flux adsorbent material treatment system integrated with a low flux adsorbent material biological regeneration reactor. The high flux adsorbent material treatment system includes one or more unit operations for mixing low concentration wastewater with adsorbent material that is fresh, recycled, or a combination of both, and for decanting a liquid effluent having a reduced level of contaminants. The adsorbent material with adsorbed contaminants is regenerated in a low flux adsorbent material biological regeneration reactor in which a biological reaction occurs, such as biological oxidation, wherein organic contaminants in the wastewater are metabolized generally into carbon dioxide and water. Excess biomass is removed from the adsorbent material, and the thus-regenerated adsorbent material is recycled to the high flux adsorbent material treatment system.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 7, 2015
    Assignees: Saudi Arabian Oil Company, Siemens Energy, Inc.
    Inventors: William G. Conner, Thomas E. Schultz
  • Patent number: 9011690
    Abstract: An orbital wastewater treatment system generally including a tank assembly and at least one impeller in the tank assembly for moving mixed liquor under process about the tank assembly is provided with an wastewater inflow sensor, an impeller power meter, and a control unit for periodically and incrementally varying impeller speed and weir height in order to reduce energy consumption. Operating such a wastewater treatment system comprises flowing mixed liquor or wastewater into a treatment pool in the tank assembly, rotating the impeller within the pool to move the mixed liquor or wastewater, and adjusting, in concert, a rate of rotation of the impeller and a level or depth of the pool to reduce a rate of energy usage per unit inflow volume while maintaining at least one process parameter such as dissolved oxygen content substantially constant at a given level in the pool.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 21, 2015
    Assignee: Ovivo Luxembourg S.a.r.l.
    Inventor: Thomas W. Leland
  • Patent number: 8999165
    Abstract: A method for the biological treatment of wastewater containing pollutants, using an aerobic biomass, includes a plurality of successive cycles of a predefined duration in order to achieve pollutants removal efficiency of 90% or higher, each of the cycles including the following steps: —introducing a wastewater effluent containing phosphorus and calcium into a reactor containing biomass; —applying an aerobic phase by introducing into the reactor a gas flow containing oxygen for a predefined length of time, sufficient to form aerobic biomass granules; —decanting the aerobic biomass granules thus formed; —and removing at least part of the treated effluent. After each step of introducing effluent into the reactor, the pH in the reactor is maintained at a value above 8 for a length of time at least equal to 10% of the cycle duration.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: April 7, 2015
    Assignees: Valbio, Inst National des Sciences Appliquees de Toulouse
    Inventors: Mathieu Sperandio, Angela Manas-Llamas, Francois Decker, Beatrice Biscans
  • Publication number: 20150083662
    Abstract: A system may include a reactor, in which an anaerobic environment exists, that includes a slurry of at least contaminated water and a mixed bacterial culture of facultative bacteria and anaerobic bacteria. The mixed bacterial culture may be suspended within the slurry. The contaminated water may include contaminants associated with a non-metal, a metal, or a metalloid. The mixed bacterial culture may react with the contaminated water to reduce or remove the contaminants from the contaminated water to create a treated slurry. The reactor may output the treated slurry. The system may also include a filtration device to receive the treated slurry; remove, from the treated slurry, the mixed bacterial culture and the contaminants, reduced or removed from the contaminated water, to create treated water; and output the treated water. The system may also include an aeration device to add dissolved oxygen to the treated water, and output the treated water.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Bruce Merrill Thomson, Jean-Claude Yacoub Younan, Joseph D. Chwirka
  • Publication number: 20150076061
    Abstract: A process for treating coking wastewater contains the steps of passing the coking wastewater in such an order through coagulation, particles removal, and ion-exchange resin.
    Type: Application
    Filed: November 30, 2011
    Publication date: March 19, 2015
    Applicants: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
    Inventors: Chad J. Cai, Jenny Z. Zhang, Zhaohui Yan, Xianrui Wang
  • Publication number: 20150048024
    Abstract: Method for treating a fluid aqueous waste stream comprising a biodegradable organic substance, comprising—feeding said stream into a bioreactor containing a fluid which contains biomass;—reacting the biodegradable organic substance with the biomass in the bioreactor under essentially anaerobic conditions;—taking a first flow from the bioreactor and using the first flow as a feed to a membrane filtration unit, in which said feed is subjected to filtration, thereby forming a permeate stream and a retentate stream;—returning the retentate stream to the bioreactor;—taking a second flow from the bioreactor as feed to a sludge treatment unit, in which sludge treatment unit the second flow is separated into a third flow, having an increased organic substance content compared to the second flow, and a fourth flow, having a decreased organic substance content compared to the second flow.
    Type: Application
    Filed: March 20, 2013
    Publication date: February 19, 2015
    Inventors: Aurélie Grélot, Abraham Izaak Versprille
  • Patent number: 8956539
    Abstract: A system and process for drying biosolids and wherein nutrients and/or minerals are blended into partially dried biosolids. Further, the system and method compresses the mixture of biosolids and nutrients into a selected form and this is followed by completion of the drying process. In the end, a more uniform and higher value dried biosolids product is produced.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: February 17, 2015
    Assignee: I. Kruger Inc.
    Inventors: Travis Smith, J. Jason Boyd
  • Publication number: 20150034554
    Abstract: The invention relates to a surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions, to a method for binding and bioremediating hydrocarbon-containing compositions as well as to the use of surface-treated calcium carbonate for binding and bioremediating hydrocarbon-containing compositions and to a composite material comprising the surface-treated calcium carbonate and a hydrocarbon-containing composition.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 5, 2015
    Inventors: Nicola Di Maiuta, Patrick Schwarzentruber, Michael Skovby
  • Patent number: 8920651
    Abstract: In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 30, 2014
    Assignee: Sam Houston University
    Inventor: Michael D. Rainone
  • Publication number: 20140374348
    Abstract: The invention describes a method for treating sewage sludge through the treatment steps of hydrolysing (2) the sewage sludge (1) and digesting (11) the hydrolysed sewage sludge (10), which has undergone hydrolysis (2), for the anaerobic treatment of the sewage sludge (1), and through the step of separating phosphate from the at least partially treated sewage sludge (3). Phosphate is separated after the treatment step of hydrolysing (2) and before the treatment step of digesting (11) the hydrolysed sewage sludge (3), wherein the sewage sludge (10), without the phosphate portion separated in the phosphate separation step, is fed to the anaerobic treatment performed through digestion (11).
    Type: Application
    Filed: September 10, 2012
    Publication date: December 25, 2014
    Applicant: P.C.S. POLLUTION CONTROL SERVICE GMBH
    Inventors: Wolfgang Ewert, Michael Sievers, Hinnerk Bormann
  • Patent number: 8916048
    Abstract: A water treatment method and a method for producing ultrapure water are provided in which urea in raw water is sufficiently decomposed, and an organism (bacterial cells) in biological treatment is prevented from flowing downstream. In a water treatment method for performing biological treatment of raw water containing urea, a carbon source is added to the raw water, and the raw water is then supplied to biological treatment means 1 and 2 having a fixed bed formed of an organism-supporting carrier to perform the biological treatment. The biological treatment after the addition of the carbon source to the raw water improves the efficiency of decomposition and removal of urea. The biological treatment means using a fixed bed formed of an organism-supporting carrier decreases the number of bacterial cells flowing downstream.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 23, 2014
    Assignee: Kurita Water Industries Ltd.
    Inventors: Nobukazu Arai, Nozomu Ikuno
  • Publication number: 20140367330
    Abstract: A wastewater treatment process that employs anaerobic granular sludge or biomass to remove chemical oxygen demand (COD) from the wastewater. Certain constituents, such as COD, nitrogen, calcium, other dissolved solids, suspended solids, can impair the effectiveness of the granular biomass. Thus, the process employs treatment units to remove these inhibiting constituents to produce a treated effluent or stream. At least a portion of the treated effluent is recycled and mixed with the influent wastewater to reduce the concentration of these inhibiting constituents.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Wenjun Liu, Graig Rosenberger, Abraham Izaak Versprille
  • Patent number: 8911626
    Abstract: The invention provides a bioretention system comprising one or more chambers and a high flow bypass system with top and bottom weirs for water filtration and storm water flow management. The invention also provides methods that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems.
    Type: Grant
    Filed: August 21, 2011
    Date of Patent: December 16, 2014
    Assignee: Oldcastle Precast, Inc.
    Inventor: Douglas Paul Allard
  • Publication number: 20140339159
    Abstract: A rapidly installed intermittent flow and storm water treatment method and apparatus employing rapid solids separation and sulfur dioxide chemical dewatering technology to produce disinfected reclaimed storm water with heavy metals removed and diluted nutrients suitable for open stream or land application.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 20, 2014
    Inventors: Terry R. Gong, Marcus G. Theodore
  • Publication number: 20140335602
    Abstract: A method for the removal of semi-volatile organic compounds in soils, sludges, groundwater, process water, and wastewater is presented. Oxidation and biological attenuation processes utilize peroxide, persulfates, percarbonates, and/or other oxidants with trivalent metals, such as ferric iron (Fe3+) or manganic ion (Mn3+) as activators. The resulting chemical oxidation process yields degradation compounds which facilitate further attenuation via biological processes.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 13, 2014
    Applicant: Innovative Environmental Technologies, Inc.
    Inventors: Michael Scalzi, Antonis Karachalios
  • Patent number: 8883099
    Abstract: The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 11, 2014
    Assignee: ADA-ES, Inc.
    Inventors: Sharon Sjostrom, Kenneth E. Baldrey, Constance Senior
  • Publication number: 20140322798
    Abstract: This method of restricting methane production in methanogenic bacteria, by the use of the enzyme and coenzyme inhibitors, works during anaerobic reductive dechlorination. Various compounds such as, but not limited to, red yeast rice, vitamin B10 derivatives, and ethanesulfonates are utilized to disrupt these different enzyme and coenzyme systems responsible for the production of methane. This method affects the competition of the methanogen and halo bacteria for the organic hydrogen donors that are injected in the soil and groundwater system during the remediation process.
    Type: Application
    Filed: May 2, 2014
    Publication date: October 30, 2014
    Applicant: Innovative Environmental Technologies, Inc.
    Inventors: Michael Scalzi, Antonis Karachalios
  • Publication number: 20140311970
    Abstract: A rotating screen has one or more panels arranged into a cylinder, or drum. The panels have openings in a micro-screening range, for example 100 microns or less. Wastewater to be screened is fed to the interior of the drum. The drum rotates constantly but the rotation may be discontinuous and the speed of rotation may be variable. The drum may be cleaned by an air knife. If the wastewater contains oil and grease, a short hot water spray may be provided before cleaning with the air knife. Optionally, an internal auger conveys solids down the length of the drum to an outlet. The rotating screen may be used for primary treatment of wastewater. The rotating screen may be used produce screenings with a dried solids concentration of 5% or more, for example 6-7%. The primary sludge may be treated in an anaerobic digester.
    Type: Application
    Filed: December 4, 2012
    Publication date: October 23, 2014
    Inventors: Michael David Theodoulou, Juan Carlos Josse
  • Publication number: 20140311975
    Abstract: A method for cleaning membranes and an inlet side of a membrane filtration module of an apparatus includes filling a basin with a treatment fluid; feeding an incoming fluid to the treatment fluid present in the basin and mixing and treating it with the latter fluid so as to obtain a fluid mixture; feeding the fluid mixture to the membrane filtration module; discharging permeate filtered by and retentate retained by the membranes; and periodically closing the fluid mixture feed-through line and opening the flushing discharge line, so that at least the inlet side of the membranes and the connection chamber of the membrane filtration module disposed underneath it are flushed.
    Type: Application
    Filed: March 6, 2014
    Publication date: October 23, 2014
    Applicant: X-Flow B.V.
    Inventors: Harry Futselaar, Rob Borgerink
  • Publication number: 20140299541
    Abstract: A system to reuse water from a septic/bio digester is shown. A sterile potable water stream is produced which is useful for humans, animals and fish farming.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 9, 2014
    Inventor: John Armour
  • Patent number: 8845901
    Abstract: A ballasted anaerobic system for treating wastewater including at least one anaerobic treatment reactor. A weighting agent impregnation subsystem is configured to mix weighting agent with the biological flocs to form weighted biological flocs to create a weighted anaerobic sludge blanket in the at least one anaerobic treatment reactor. A weighting agent recovery subsystem is configured to recover the weighting agent from excess sludge and reintroduce the weighting agent to the weighting agent impregnation subsystem.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: September 30, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventor: Steven E. Woodard
  • Publication number: 20140263043
    Abstract: The present invention is directed to systems and methods of treating wastewater. The present invention may include a method of treating such wastewater comprising selenium in the form of water soluble selenates, selenites, and/or selenides, the method including: a chemical/biological treatment process, causing the water soluble selenates, selenites, and/or selenides in the wastewater to be converted into insoluble elemental selenium; and a physical treatment process, trapping the insoluble elemental selenium in a filtration device.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Infilco Degremont, Inc.
    Inventors: Sunil Mehta, Raed Labban
  • Publication number: 20140251904
    Abstract: The present invention discloses device that can generate a strong vortex in the vortex chamber which significantly enhances rate of reactions and effectiveness of waste water treatment. The present invention disclose vortex diodes with or without inserts/stabilizers as continuous flow reactors to induce cavitation to generate radicals which reduces Chemical Oxygen Demand (COD), ammoniacal nitrogen and color of waste water effectively in effluent treatments.
    Type: Application
    Filed: October 11, 2012
    Publication date: September 11, 2014
    Inventors: Vivek Vinayak Ranade, Amol Arvind Kulkarni, Vinay Manoharrao Bhandari
  • Patent number: 8828230
    Abstract: A method of conditioning, separating, drying, and comminuting sulfurous acid treated wastewater suspended solids for addition to aerobic and anaerobic digesters to provide electron donor carbon and sulfur compounds to increase the removal rate of ammonia, nitrates/nitrites, and BOD compounds.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 9, 2014
    Assignee: Earth Renaissance Technologies, LLC
    Inventor: Marcus G. Theodore
  • Publication number: 20140231345
    Abstract: The invention relates to a method for treating wastewater containing hydrocarbons, in particular hydrocarbons from the group of compounds referred to as BTEX, comprising benzene, toluene, ethylbenzene and xylene aromatic compounds, said wastewater being in particular from the production or conditioning of natural gas, wherein, according to the method, the wastewater is subjected to stripping by the natural gas such that the hydrocarbon pollution is not only removed from the water by means of being transferred to the gas, but also eliminated during the subsequent combustion of the gas. The wastewater to be treated has a soluble BTEX content that is no higher than 1,200 ppm, preferably no higher than 900 ppm, and the weight ratio of the stripping gas to the treated water is less than 10%, the water being discharged from the stripper having a soluble BTEX content that is no higher than 30 ppm.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 21, 2014
    Applicant: ONDEO INDUSTRIAL SOLUTIONS
    Inventors: Cathy Fuchs, Craig Wallis, Benoit Tommy-Martin
  • Patent number: 8801932
    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: Grant
    Filed: May 14, 2010
    Date of Patent: August 12, 2014
    Assignee: Noram International Limited
    Inventor: Michael Gattrell
  • Publication number: 20140202956
    Abstract: A method for treating a sludge to be fed to a bioreactor for treating wastewater, or an anaerobic or aerobic sludge digester, the method comprising contacting the sludge with free nitrous acid.
    Type: Application
    Filed: June 22, 2012
    Publication date: July 24, 2014
    Applicant: THE UNIVERSITY OF QUEENSLAND
    Inventor: Zhiguo Yuan
  • Patent number: 8784659
    Abstract: A process has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks. According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or programmed disintegration of the liposome proceeds. Thereafter, the biocidal aqueous core is released to react directly with the biofilm encased microorganisms.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 22, 2014
    Assignee: General Electric Company
    Inventors: Wilson Kurt Whitekettle, Gloria Jean Tafel, Qing Zhao, Linna Wang, Dorothy Reynolds, Paul Frail, Juan Jiang, David M. Polizzotti
  • Patent number: 8778185
    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: Grant
    Filed: March 31, 2010
    Date of Patent: July 15, 2014
    Assignee: General Electric Company
    Inventors: Sijing Wang, Stephen R. Vasconcellos
  • Patent number: 8758617
    Abstract: The invention discloses a wastewater processing method of hydrolysis-acidification enhanced by addition of zero-valent iron (ZVI), including the following steps: 3˜6 ZVI-filling layers are settled in the middle of an anaerobic hydrolysis-acidification reactor. Excess sludge taken from sewage treatment plant using as seed sludge is added into this anaerobic hydrolysis-acidification reactor for startup and domestication. In the present invention, ZVI are added into this anaerobic hydrolysis-acidification reactor to accelerate organic matters degradation and produce more acetic acids, accompanied with higher COD removal obtained. ZVI can be protected from rust in this anaerobic biological environment due to the air isolation. Also, ZVI can enhance anaerobic hydrolysis of wastewater through reducing refractory pollutants involved in wastewaters.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 24, 2014
    Assignee: Dalian University of Technology
    Inventors: Xie Quan, Yaobin Zhang, Yiwen Liu, Huimin Zhao, Shuo Chen, Yang Yang Li
  • Publication number: 20140166575
    Abstract: A method for cleaning an oil spill in a marine environment includes forming a particle-stabilized emulsion containing seawater, carbon black and at least one oil spill component and allowing the at least one oil spill component to degrade, thereby removing said component from the marine environment. Carbon black can be added to an oil-seawater mixture to form a stabilized emulsion containing at least one oil spill component and the oil spill component allowed to degrade, thereby removing the at least one oil spill component from the oil spill. Also disclosed is an emulsion that includes one or more oil spill components, seawater and carbon black particles.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 19, 2014
    Applicants: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND, CABOT CORPORATION
    Inventors: Arijit Bose, Vijay T. John, Ani Tzankova Nikova
  • Patent number: 8753511
    Abstract: Apparatus for integrated biological wastewater treatment and clarification including a tank having a wastewater inlet for receiving wastewater to be treated and having a treated, clarified wastewater outlet for providing treated, clarified wastewater for use, the tank having an upper turbulence region, a lower solids settling region below the upper turbulence region and a sludge collection region below the lower solids settling region, a multiplicity of biomass carriers disposed in the upper turbulence region, a gas diffuser assembly arranged generally between the upper turbulence region and the lower solids settling region for providing gas bubbles which move upwardly through the wastewater and the biomass carriers in the upper turbulence region, providing turbulence and oxygen and a sludge removal conduit communicating with the sludge collection region for removal of sludge therefrom.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: June 17, 2014
    Assignee: AQ-WISE—Wise Water Technologies Ltd.
    Inventors: Nir Assulin, Tamar Arbel
  • Publication number: 20140151296
    Abstract: Systems and methods for removing organic contaminants from water may be used, for example, to treat produced water from a steam assisted heavy oil recovery operation. The treated produced water may be re-used to create steam. Alternatively, the produced water may be a blowdown stream treated to facilitate further treatment in a thermal crystallizer. The treatments may include pH adjustment or separating de-solubilized organics or both. Other treatments may include one or more of oxidation, sorption and biological treatments. The treatments may be used alone or in various combinations. One exemplary combination includes reducing the pH of produced water, separating de-solubilized organics from the produced water, and oxidizing the produced water or contacting the produced water with activated carbon.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 5, 2014
    Applicant: General Electric Company
    Inventors: Brian Christopher MOORE, Hope MATIS, William Leonard KOSTEDT, IV, David M. POLIZZOTTI, Matthew Alan PETERSEN, Jeffrey Lynn SCHWORM, Anthony Yu-Chung KU
  • Patent number: 8741143
    Abstract: A process for treating a water stream containing dissolved organic carbon and dissolved salts comprises subjecting the water stream to reverse osmosis after a pre-treatment step to reduce the amount of dissolved organic carbon directed in water to the reverse osmosis treatment step. The preferred pre-treatment step is a membrane treatment step such as nanofiltration. The process enables treatment of complex effluents including mixtures of domestic and industrial effluents. Treated water may be recycled and a treatment plant (100) employing the process forms another aspect of the invention.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: June 3, 2014
    Assignee: Central Gippsland Region Water Corporation
    Inventors: David Evans, Andrew Hodgkinson
  • Patent number: 8734650
    Abstract: A system and method for removing gas from a gas producing subterranean formation and removing contaminants from the produced water is provided. The method includes providing a mixture of gas and water gathered from a gas producing well. Thereafter the method entails separating the gas from the mixture to produce a gas product and the produced water which includes organics, suspended solids and dissolved solids including silica. Thereafter, suspended solids are removed from the produced water. After removing some of the suspended solids, the produced water is directed to a micro porous polymer extraction (MPPE) unit. In the MPPE unit aromatic organic compounds are removed from the produced water. Thereafter the produced water is treated in a membrane bioreactor to remove additional organics. Thereafter the produced water is directed to at least one RO unit that produces a high dissolved solids containing reject stream and a low dissolved solids permeate stream.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: May 27, 2014
    Assignee: Veolia Water Solutions & Technologies North America, Inc.
    Inventor: Robert Bradley
  • Patent number: 8734648
    Abstract: Systems and methods are provided for the treatment of caustic wastewater. Specifically, systems and methods are provided for combining refinery spent caustic and ethylene spent caustic solutions and treating the combined spent caustic mixture using a wet air oxidation process.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 27, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: Bryan J. Kumfer, Chad L. Felch, Bruce L. Brandenburg, Richard W. Lehmann