With Separator Patents (Class 210/151)
  • Patent number: 10696941
    Abstract: Compositions and methods and apparatus for growth and maintenance of microorganisms and/or bioprocesses using one or more gases as electron donors, electron acceptors, carbon sources, or other nutrients, and for a bioprocess that converts hydrogen and carbon dioxide, or syngas, or producer gas into lipid products, bio-based oils, or other biochemical products.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 30, 2020
    Assignee: Kiverdi, Inc.
    Inventors: Peter Dalla-Betta, John S. Reed
  • Patent number: 10689277
    Abstract: One or more new, or existing, or modified, open bottom bio-remediation reactors R are contained within a commercial, industrial, or municipal waste water aeration treatment facility or tank directly above existing and/or new stand-alone diffusers located on the bottom of the facility or tank. The reactors R increase solubility of air and/or oxygen in water, increase energy efficiency, increase through put of treated waste water, and improve bio-remediation of the waste water. Also, a tube reactor having no packing substrates in a non-tube area is described.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 23, 2020
    Assignee: IMET CORPORATION
    Inventors: Mehmet A. Gencer, Kaan Gencer, Clark B. Langmack, Paul M. Zakriski
  • Patent number: 10662097
    Abstract: The invention discloses an apparatus for sewage deep denitrification with high pollutant carrying capacity and low energy consumption and a method for running the same, characterized in that: the apparatus mainly includes a settling tank, an electrodialysis device, a pH adjusting tank, a first chemical storage tank, a biofilter, a second chemical storage tank, a redox potential measuring device, a backwash pump, and a clean water tank, wherein the biofilter is provided with a gas collecting device, an uniform water distributor, a first filter bed, a second filter bed, a third filter bed, and a fourth filter bed sequentially from up to down, a second dosing port is arranged underneath the second filter bed, and the second chemical storage tank is communicated to the second dosing port respectively through a first flow path and a second flow path.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 26, 2020
    Assignee: NANJING UNIVERSITY
    Inventors: Hui Huang, Qing Wang, Hong-qiang Ren
  • Patent number: 10660978
    Abstract: Microbial growth of at least one microorganism may be decreased, prevented, and/or inhibited in a fluid by providing ultrasonic waves to the fluid. In an optional non-limiting embodiment, an amount of at least one gas may be provided to the fluid for further decreasing the microbial population, preventing microbial growth, and/or inhibiting microbial growth. In another non-limiting embodiment, the fluid may be a downhole fluid, such as but not limited to, drilling fluids, completion fluids, production fluids, injection fluids, stimulation fluids, refinery fluids, servicing fluids, and combinations thereof. Alternatively, the fluid or downhole fluid may have a temperature ranging from about 25 C to about 100 C.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 26, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Charles David Armstrong, Crystal Lee
  • Patent number: 10624283
    Abstract: System and methods for monitoring the growth of an aquatic plant culture and detecting real-time characteristics associated with the aquatic plant culture aquatic plants. The systems and methods may include a control unit configured to perform an analysis of at least one image of an aquatic plant culture. The analysis may include processing at least one collected image to determine at least one physical characteristic or state of an aquatic plant culture. Systems and methods for distributing aquatic plant cultures are also provided. The distribution systems and methods may track and control the distribution of an aquatic plant culture based on information received from various sources. Systems and methods for growing and harvesting aquatic plants in a controlled and compact environment are also provided. The systems may include a bioreactor having a plurality of vertically stacked modules designed to contain the aquatic plants and a liquid growth medium.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 21, 2020
    Assignee: GreenOnyx LTD
    Inventors: Tsipi Shoham, Benjamin Shoham
  • Patent number: 10604429
    Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: March 31, 2020
    Assignee: New Evironmental Engineering, Inc.
    Inventor: John Stewart Lang
  • Patent number: 10550009
    Abstract: Methods of treating a high suspended solids liquor having a waste stream and a suspended solids content including powdered activated carbon and biological material by contacting the high suspended solids liquor with a membrane unit are disclosed. Methods of treating a waste stream by combining the waste stream with powdered activated carbon and biological material to produce the high suspended solids liquor and contacting the high suspended solids liquor with a membrane unit are also disclosed. Treatment systems including a membrane unit fluidly connected to a source of a high suspended solids liquor are disclosed. Treatment systems including a bioreactor fluidly connected to a source of a waste stream and a membrane unit are also disclosed.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 4, 2020
    Assignee: SIEMENS ENERGY, INC.
    Inventors: William Cunningham, Philip A. Burclaff, Chad L. Felch, Andrea J. Larson, Duane R. Smith, Simon Larson
  • Patent number: 10494282
    Abstract: Disclosed is a bioreactor for treating sewage comprising an aerobic tank including a mixing cell for receiving sewage to be supplied from an inlet and mixing the sewage with activated sludge and an aerobic reactor tank in which the activated sludge adsorbs organic substance existing in the sewage; a backwashing cartridge filter for removing floc resulting from growth of the activated sludge adsorbing the organic substance; and an anaerobic tank for carrying out a denitrification process for denitrifying treated water flowed through the backwashing cartridge filter using anaerobic ammonium oxidation (anammox) bacteria wherein the backwashing cartridge filter allows the sewage discharged from the aerobic tank to pass through the cartridge filter and separates the floc and the treated water using difference in size between the floc contained in the sewage and pores in the cartridge filter, and wherein foreign matter adsorbed on the cartridge filter is easily removed by means of washing water to be injected into
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: December 3, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
  • Patent number: 10486987
    Abstract: Method for treating water comprising: a step for putting said water into contact with an adsorbent powdery material in a concentration of 0.1 to 5 g/L in a membrane reactor containing at least one submerged filtration membrane; a step of filtration by submerged membrane of said water containing said adsorbent powdery material in said membrane reactor, said membrane being at least partly constituted by an organic material; characterized in that it includes steps aimed at limiting the abrasion of said at least one submerged membrane by said adsorbent powdery material, said steps consisting in: putting said water containing said adsorbent powdery material into contact, in said membrane reactor, with a particulate polymer material constituted by particles in a concentration of 1 g/L to 10 g/L, said particles having an average diameter of 1 mm to 5 mm and a density of 1.05 to 1.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: November 26, 2019
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Abdelkader Gaid, Annie Tazi-Pain, Catherine Daines-Martinez
  • Patent number: 10399875
    Abstract: The invention concerns a wastewater treatment plant and a method for it. The plant comprising at least one main reactor module (30) having a plurality of stackable filter-modules (50), each filter-module purifying wastewater independently by being individually charged batchwise with wastewater. The wastewater is discharged on each filter-module by means of a deflector (44) referenced to a filter-module (50), the deflector creating a back pressure in dependency of the gravity-flow-force of the wastewater leading to that the wastewater is spilled from the deflector (44) in an angle of discharge relative to a horizontal plane evenly onto every independent filter-module, respectively.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 3, 2019
    Inventors: Tariq Kaddoura, Moritz König, Julius Jacob
  • Patent number: 10384968
    Abstract: The invention relates to a ternary sewage treatment method integrating microbial fuel cells with anaerobic acidification and forward osmosis membrane, and belongs to the technical field of sewage treatment. The method of the invention comprises the following steps: Sewage is driven into the anaerobic acidification device for mixture with the NaOH solution. The mixed liquid enters into the MFC for converting the enriched organics to bioelectricity and then flows back to the anaerobic acidification device. A part of the mixed liquid passes through the MF membrane module to form effluent and enters into the sedimentation basin for phosphate removal and finally passes through activated carbon adsorption column, another part passes through the FO membrane module to form effluent and obtain high quality recycled water after the RO membrane processing. The method is a new coupled model of FO membrane and MFC and it provide a ternary combined technique integrating MFCs with anaerobic acidification and FO membrane.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 20, 2019
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Xinhua Wang, Jinmeng Liu, Yuqin Lu, Xiufen Li
  • Patent number: 10299339
    Abstract: There is disclosed a desalinization apparatus, and methods related to desalinization. In an embodiment, a desalinization apparatus includes at least one port for receiving airflow therethrough, at least one port for receiving salt water therethrough, at least one output for providing outflow of pure water vapor, and at least one output for proving outflow of a mixture of water, salt and air; and a plurality of chambers for evaporating the salt water into the airflow, at least one of the chambers forming a plurality of ports arranged in a plurality of rows. In an embodiment, a method includes providing airflow to a desalinization apparatus; providing salt water to the desalinization apparatus; forming a vortex in the airflow to evaporate water vapor from the salt water; and providing the water vapor in the airflow to a condenser so as to obtain pure water.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 21, 2019
    Assignee: LYTESYDE, LLC
    Inventors: Bruce E. Nadeau, Jr., Kelly P. Rock
  • Patent number: 10239775
    Abstract: The invention discloses an apparatus for relieving surface-layer clogging of a denitrification deep-bed filter and a method for running the same, which belongs to the field of sewage treatment.
    Type: Grant
    Filed: June 25, 2017
    Date of Patent: March 26, 2019
    Assignee: NANJING UNIVERSITY
    Inventors: Hui Huang, Qing Wang, Hong-qiang Ren, Si-Jia Ma
  • Patent number: 10201799
    Abstract: The present invention relates to a packing element for a structured packing including at least two adjacent corrugated sheets, wherein each of the corrugated sheets has a plurality of alternately oriented peaks and troughs, wherein adjacent corrugated sheets are oriented such that the corrugations of the adjacent corrugated sheets intersect in crisscross fashion with the corrugations of the corrugated sheets extending obliquely relative to the vertical direction, wherein each corrugated sheet contacts each of the adjacent corrugated sheets at points of intersection between the corrugations of the corrugated sheet and those of the adjacent corrugated sheets, wherein all corrugated sheets are tied together by means of at least one rod, wherein the at least one rod penetrates the corrugated sheets perpendicularly to the longitudinal section of the corrugated sheets, wherein on the at least one rod before the first corrugated sheet of the packing element and/or after the last corrugated sheet of the packing eleme
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: February 12, 2019
    Assignee: Sulzer Chemtech AG
    Inventor: Florian Kehrer
  • Patent number: 10155682
    Abstract: A method of treating wastewater is disclosed in which a flow equalization reactor is provided that includes at least one wastewater treatment zone. A first wastewater treatment process is performed in the at least one wastewater treatment zone, which can be switched to a second wastewater treatment process. The flow equalization reactor is designed with a variable liquid depth and volume that can operated as a mixed wastewater zone, an anaerobic reactor zone, an anoxic reactor zone or an aerobic reactor zone. The equalization reactor provides sufficient variable liquid depth and volume above a minimum liquid depth and residual volume to provide the necessary hydraulic flow equalization or surge volume to achieve a relatively constant effluent pumping rate or feed forward flow rate over 24 hours per day, seven days per week into the downstream biological treatment processes, clarifiers, filters, or disinfection units, etc.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 18, 2018
    Inventor: John H. Reid
  • Patent number: 10085430
    Abstract: An aquarium filtration and algae control system, for use with an aquarium containing a quantity of water, having a housing having a growth chamber and an overflow part. The growth chamber includes at least two cells separated by at least one photocontactor wall. Water from the aquarium is sprayed into each of the cells to create circuitous high velocity water flow and each cell and each photocontactor wall is illuminated by a high intensity light source to promote diatom algae growth within the growth chamber and thereby prevent undesirable algae growth elsewhere in the aquarium.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 2, 2018
    Inventor: Ernest Gonzalez
  • Patent number: 10086326
    Abstract: A gas separation module and assembly for housing ceramic tubular membranes. The module includes a plurality of tubes containing the ceramic tubular membranes. The tubes are arranged parallel to one another and are supported by tube sheet plates at each end. Gas-tight seals surround each membrane, preventing a feed gas and a residue gas within the inner lumen of the membrane from mixing with a permeate gas in the tube interior. The module also contains a gas distribution pipe for withdrawing the permeate gas out of, or introducing a sweep gas into, the module. This configuration allows for ceramic tubular membranes to be modularized for use in an assembly that carries out many types of gas separations.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 2, 2018
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Paul Su, Moyeen Mohammed, Alicia Breen, Mamoon Rashid Khan, Nicholas P Wynn
  • Patent number: 10065876
    Abstract: The disclosure describes an algal system for improving water quality through the use of algae. In example embodiments, the algal system comprises an elongate device including algae enclosed therein and capable of reducing at least the levels of nitrates and phosphates in water directed through the device. The algae may be capable of also reducing E. coli bacteria, other bacteria, and viruses in the water. Preferably, the algae comprises a filamentous green algae, including without limitation, Spirogyra grevilleana algae. In one example embodiment, the algal system comprises an elongate device and an elongate cartridge that is pre-configured to treat certain chemical compounds, bacteria, and viruses, and certain other characteristics of water. The cartridge is delivered to the site where the water is to be treated and installed in the field, possibly replacing an existing cartridge. After use, algae may be processed into biofuel.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: September 4, 2018
    Inventor: Malcolm A Barnard
  • Patent number: 10040711
    Abstract: A method for biologically treating effluent involves pouring the effluent into a basin in which mobile supports are submerged for developing a biofilm and for carrying out a treatment by fixed fluidized bed, aerating the effluent in the basin with a distribution of air flow, from the bottom of the basin, according to a floor configuration, the aeration supplying air for treating the nutrients, and keeping the supports moving, regulating the aeration to modulate the air flow depending on at least one parameter taken from the following parameters: the residual oxygen concentration, and/or the concentration of oxygen and the concentration of N—NH4, and/or the permitted load; modifying the distribution of the air supply from the floor configuration to a spiral flow configuration when the operating conditions result in an air flow lower than a minimum air flow required to keep the mobile supports moving in the floor configuration.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 7, 2018
    Assignee: DEGREMONT
    Inventors: Laure Graveleau, Troy Holst
  • Patent number: 9957177
    Abstract: A wastewater disposal method using a two-way oxygen supply horizontal-flow biofilm includes a carrier that is formed of a permeable material so that oxygen is supplied to the biofilm from the bottom layer of the biofilm adjacent to the surface of the carrier, so as to achieve a mode of simultaneously supplying oxygen from the surface layer and the bottom layer of the biofilm. Wastewater disposal equipment using a two-way oxygen supply horizontal-flow biofilm includes a water intake system, a reaction system and a water discharge system.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: May 1, 2018
    Assignee: TONGJI UNIVERSITY
    Inventors: Rongchang Wang, Yalei Zhang, Jianfu Zhao
  • Patent number: 9944961
    Abstract: A process for removing sulphide from an aqueous solution comprising sulphide is disclosed, in which the aqueous solution is subjected to sulphide-oxidizing bacteria in the presence of oxygen in a reactor to oxidize sulphide to elemental sulphur. According to the process, a molecular-oxygen containing gas is supplied to a reactor containing the sulphide-oxidizing bacteria in an aqueous medium, such that one or more aerated zones and one or more non-aerated zones are created in the aqueous medium with upward liquid flow in the aerated zones and downward liquid flow in the non-aerated zones; and a feed stream of the aqueous solution comprising sulphide is injected into the reactor in the one or more non-aerated zones, wherein the one or more aerated zone(s) are not separated from the one or more non-aerated zone(s) by means of vertically extending reactor internal.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: April 17, 2018
    Assignee: Paques I.P. B.V.
    Inventors: Erik Van Zessen, Antonius Johannes Jorna, Sjoerd Hubertus Jozef Vellinga, Hendrik Dijkman
  • Patent number: 9932254
    Abstract: The invention relates to a method for treating wastewater by means of photosynthetically active algae that form a sediment in the resting state, comprising the following steps: a) supplying wastewater to photosynthetically active algae that form a sediment in the resting state, b) conveying the wastewater supplied to the algae against gravity from a lower level to a higher level while simultaneously exposing the wastewater mixed with the algae to light, c) introducing the wastewater supplied to the algae from the higher level into the upper region of a sedimentation tank, d) allowing the algae to sediment in the sedimentation tank, and e) removing the wastewater freed of the algae by sedimentation as treated wastewater.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: April 3, 2018
    Inventor: Niels Holm
  • Patent number: 9932549
    Abstract: An algal growth system can include a frame and a flexible sheet material that can have a substantially vertical orientation, where the flexible sheet material can facilitate the growth and attachment of algae, where the flexible sheet material can be supported by the frame.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 3, 2018
    Assignees: Gross-Wen Technologies, Inc., Iowa State University Research Foundation, Inc.
    Inventors: Martin Anthony Gross, Zhiyou Wen
  • Patent number: 9902638
    Abstract: 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, offer many opportunities to 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: Grant
    Filed: February 18, 2014
    Date of Patent: February 27, 2018
    Inventor: Richard Lee Aho
  • Patent number: 9868649
    Abstract: The invention relates to a process and apparatus that treats waste water, in particular waste water containing surfactants and including grey water, for local reuse. According to the invention, the process comprises a) collecting waste water in a reservoir; b) injecting gas into waste water from the reservoir to form bubbles in the waste water; c) separating the bubbles, and any entrained contaminants, from the waste water; d) drying the separated bubbles and returning any water recovered from the dried bubbles to the waste water undergoing treatment; e) optionally repeating steps b) to d) to achieve the desired purification of the waste water; and f) collecting the purified waste water. The invention provides a robust process and a mechanically simple apparatus that does not require regular replacement of chemicals or filters, yet is capable of treating waste water locally, and in particular grey water for household reuse.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: January 16, 2018
    Assignee: Nexus eWater Pty Ltd.
    Inventors: William Peter Keith Kennedy, Andrew James Hermann, Thomas Andrew Wood
  • Patent number: 9828263
    Abstract: A method of removing particulate silicon from an effluent water in accordance with various embodiments may include: adding a base to the effluent water, an amount of the added base being sub-stoichiometric with regard to a basic oxidation reaction of an entire amount of silicon contained in the effluent water to ortho-silicic acid or ortho-silicate ions; maintaining a resulting mixture of the effluent water and the base in a predetermined temperature range for a period of time, so that a sediment including silicon is formed; and separating the sediment and the effluent water from each other.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: November 28, 2017
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Friedrich Kroener, Zeljka Kroener
  • Patent number: 9790459
    Abstract: A bioreactor can include a plurality of unit cells. Each unit cell can include a floor configured to support a volume of liquid, the floor being symmetric across at least one axis of symmetry, and an injection port oriented at a center point of at least one axis of symmetry and configured to inject a fluid into the volume of liquid. The bioreactor can also include a peripheral side wall surrounding the plurality of unit cells such that the volume of liquid is retained in the bioreactor.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: October 17, 2017
    Assignee: University of Utah Research Foundation
    Inventors: Leonard Franklin Pease, III, Swomitra K. Mohanty, John McLeenan, Tony Butterfield, Tyler Lee, Samuel Doane, Rete Browning, Yen-Hsun Tseng
  • Patent number: 9783440
    Abstract: Systems and methods for treating wastewater including a dissolved air flotation operation performed upon a portion of a mixed liquor output from a contact tank prior to the mixed liquor entering a biological treatment tank.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: October 10, 2017
    Assignee: Evoqua Water Technologies LLC
    Inventors: Argun O. Erdogan, Michael L. Doyle
  • Patent number: 9738549
    Abstract: Method and system for treating wastewater includes treating sludge with ozone in a plug-flow type reactor to cause lysis of biosolids in the sludge. The ozonated sludge may be provided to an anaerobic or anoxic section of the wastewater treatment system to aid the denitrification processes occurring in the anaerobic or anoxic section of the wastewater treatment system or to other sections of the wastewater treatment system such as a fermenter, an aerobic digester, or an anaerobic digester.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: August 22, 2017
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Richard A. Novak, Malcolm E. Fabiyi
  • Patent number: 9695075
    Abstract: A fluidized bed reactor for ammonia laden wastewater includes a column, a plurality of carrier particles, a first settling tank and a fluidizing means. The column defines a fluidizing chamber therein, and the fluidizing means is adapted for introducing the ammonia laden wastewater into the fluidizing chamber and further into the first settling tank. The reactor is further provided with microorganisms including nitrifying bacteria, anammox bacteria and heterotrophic denitrifying bacteria attached to the carrier particles. Nitrification reaction, anammox reaction and heterotrophic denitrification reaction are simultaneously taking place in the fluidizing chamber to transform ammonia into nitrogen by the microorganisms. A method for treating ammonia laden wastewater is also provided. The fluidized bed reactor is advantageous in the fact that its start-up is significantly shortened and it is adapted to efficiently treat thin ammonia laden wastewater.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 4, 2017
    Assignees: LEADERMAN & ASSOCIATES CO., LTD., NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Der-Ming Lee, Ming-Kuei Chiang, Chin-Te Chen, Keng-Chuan Sung, Chien-Ju Lan, Jih-Gaw Lin, Yi-An Chiang
  • Patent number: 9688554
    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: October 31, 2014
    Date of Patent: June 27, 2017
    Assignee: Sam Houston State University
    Inventors: R. Gavin Jones, Kenneth Wilson, Sabin Holland, Michael D. Rainone
  • Patent number: 9573829
    Abstract: An aim of the invention is to provide a bioreactor and a waste water treatment method that employs this tank, whereby anaerobic and aerobic microorganism treatment can be continuously carried out, even when the volume of the bioreactor is large, and whereby installation costs can be minimized.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: February 21, 2017
    Assignee: JAPAN ALSI CO., LTD.
    Inventor: Kiyoharu Fujino
  • Patent number: 9533895
    Abstract: A device for treating fluorine-containing water includes a fluorine treating unit treating the fluorine-containing water in which calcium carbonate packed towers are arranged in series in a plurality of stages; a fluorine passing unit passing the fluorine-containing water through the fluorine treating unit; an extracting unit extracting treated water from the fluorine treating unit; and a recovery unit recovering calcium fluoride from the calcium carbonate packed towers.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 3, 2017
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventor: Shuhei Izawa
  • Patent number: 9512021
    Abstract: Disclosed are a sewage and wastewater treatment system and method using a constant level continuous flow sequencing batch reactor (CSBR). Also, disclosed is a method capable of converting the system into a membrane bio-reactor (MBR) process by means of submerged membranes with a simple configuration. Further, disclosed is an automated foam and scum management and removal system.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 6, 2016
    Assignees: ROTHWELL WATERTECH GLOCAL INCORPORATED
    Inventor: Peter L. Timpany
  • Patent number: 9505644
    Abstract: Methods and systems are provided for treating wastewater to simultaneously remove nitrogen, carbon, and phosphorus. The process includes an anoxic tank that receives at least two streams, including plant influent wastewater and return activated sludge. These streams are mixed in the anoxic tank to promote phosphorus release and fermentation of particulate and dissolved organic matter. The mixed liquor is transferred to an aerated tank having low dissolved oxygen concentrations to promote development of phosphorus-release bacteria that is eventually recycled to the anoxic tank by way of the return activated sludge. Simultaneous nitrification, denitrification, and phosphorus release occur in the aerated tank. A membrane tank separates treated effluent from activated sludge in a membrane tank.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 29, 2016
    Assignee: AMERICAN WATER WORKS COMPANY, INC.
    Inventors: Eugenio Giraldo, Yanjin Liu, Swarna Muthukrishnan
  • Patent number: 9487421
    Abstract: A scalable, modular water filtration and re-capture system is disclosed, such as for use as a high performance bioswale, or other purposes. The system includes a filter container with a removable cartridge that contains a filter media soil and planted vegetation, which may be for example one or more hyperaccumulators. The filter container is stacked together with a cistern container and in fluid communication therebetween to form a stacked container pair as a water filter and capture module. This allows for efficient servicing and removability of the filter cartridge, such as in bioswale, below ground, or above ground configurations. Water inflows and outflows may be circulated for varieties of reclamation uses, or treated water may simply be stored or conveyed into the ground. Multiple such modules may be secured together in custom scalable configurations to meet various needs and intended uses for water volumes, available space or terrain, or specific water treatment needs.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: November 8, 2016
    Inventors: Jeff Howard Coffman, Guy Stivers
  • Patent number: 9446972
    Abstract: The object is to provide an activated sludge treatment method whereby production of excess sludge is brought substantially to zero; and a method for upgrading existing waste water treatment equipment, employing this method.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 20, 2016
    Assignee: JAPAN ALSI CO., LTD.
    Inventor: Kiyoharu Fujino
  • Patent number: 9422179
    Abstract: Procedure using zeolite, clinoptilolite type in an upflow anaerobic reactor and sludge blanket (UASBs) in order to obtain granular active sludge, thereby improving the density of the sludge, and thereby, their settling properties, and increase of biomass within reactor by immobilizing microorganisms, to achieve an increase in the efficiency of the removal of organic material and the production of biogas (60-70% methane) in more than 20% over the same type reactor used so far without zeolite, enabling the use of such reactor for treating wastewater with a high concentration of proteins, amino acids and other nitrogen compounds and which prevents the accumulation of nitrogen, which is toxic to the process by allowing zeolite-clinoptilolite, the exchange with alkali and alkaline earth found in specific points of the crystal structure of clinoptilolite by ammonia nitrogen, and also preventing the development of filamentous bacteria, which are difficult to hold up within the reactor and reduces its efficiency.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: August 23, 2016
    Assignee: UNIVERSIDAD DE SANTIAGO DE CHILE
    Inventors: Silvio Jacinto Montalvo Martinez, Enrique Pablo Sanchez Hernandez, Lorna Elena Guerrero Saldes Elena
  • Patent number: 9352978
    Abstract: A treatment system for collecting storm water from an industrial area and removing suspended and dissolved pollutant materials from the storm water. Storm water is accumulated and delivered to a filtration apparatus in which suspended pollutants are removed by filtration, while dissolved materials, particularly heavy metals including zinc and copper, are removed by chemical chelation in a bed of compost filter media having a high humic acid content and which is kept consistently moist. A sparger provides for wide and generally uniform distribution of the storm water over the bed of filter media and provides for slow passage of the storm water through the filter bed, thus giving a long contact time of the storm water with the filter media in order to promote and enhance chemical chelation progress to chemical equilibrium and removal of a high percentage of dissolved metals, and particularly dissolved copper and zinc.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 31, 2016
    Assignee: Gunderson LLC
    Inventor: David James Harvey
  • Patent number: 9352989
    Abstract: An apparatus and a method for an ozone-based treatment of polluted water are disclosed. The apparatus and the method generally comprise three stages. The first stage is an ozone treatment stage wherein the polluted water is treated with ozone gas. The second stage is a gas-liquid separation stage wherein excess non-dissolved gases, from the ozone treatment stage, are removed from the water whereby the water exiting the gas-liquid separation stage is substantially saturated with dissolved gases and substantially free of non-dissolved gases. The last stage is a membrane filtration stage wherein the gas-saturated water generally undergoes micro-filtration or ultra-filtration. Microbubbles formed during this final stage generally prevent the accumulation of particles and pollutants on the surface of the membranes and/or inside the openings or pores thereof; thereby acting as a self-cleaning mechanism for the membrane filter.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 31, 2016
    Inventor: Maurice Lacasse
  • Patent number: 9352979
    Abstract: A portable water treatment system includes at least one sub-system to treat water including a flocculation system, a chlorination system, and a bio-sand filter system. The water treatment system may include multiple sub-systems for treating water that feed into one another. The sand filter system may include a mini bio-sand filter, a foam filter, or a pressed block filter. The flocculation system may include a tank bottom that urges settling particles toward a sump and a ladle that removes settled particles. A manual pump or siphon may be included in the water treatment system.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: May 31, 2016
    Assignee: Access Business Group International LLC
    Inventors: Roy W. Kuennen, Terry L. Lautzenheiser, Roy M. Taylor, Jr., William T. Stoner, Jr., Kenneth E. Conrad, Karen J. VanderKooi, Brian S. Beals, Ryan D. Schamper, Cynthia G. Sutter
  • Patent number: 9328006
    Abstract: An economical method for recovering phosphate or phosphate and nitrogen from liquid streams. A liquid containing phosphate is introduced into a culture of autotrophic microorganisms in the presence of natural or artificial light, thereby producing a liquid effluent with elevated pH and reduced alkalinity. The alkalinity is reduced through the consumption of bicarbonate/carbonate by the autotrophic microorganisms. The effluent is then chemically treated with low-cost chemicals to provide Ca++ or Mg++ ions necessary to form a phosphate precipitate such as calcium phosphate or magnesium-ammonium-phosphate (MAP). The autotrophic microorganisms can be cultivated in ponds, lagoons, or photobioreactors. The pH of the culture is adjustable within a preferred range of 7.5 to 10.5 by adjusting the photobioreactor operation.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: May 3, 2016
    Inventor: Dennis A. Burke
  • Patent number: 9272931
    Abstract: A wastewater treatment system includes a wastewater collection system, at least one aeration subsystem aerating the aerobic portion, and at least one filtration subsystem. The wastewater collection system has an anoxic portion, an aerobic portion downstream of the anoxic portion, an anaerobic portion downstream of the aerobic portion. The filtration subsystem includes at least one bioreacting filter receiving fluid from the aerobic portion, being operable to filter wastewater received from the aerobic portion, and discharging filtered fluid into the anoxic portion, an oxygen contactor fluidically connected between the aerobic portion and the at least one bioreacting filter and operable to diffuse oxygen into the fluid being supplied from the aerobic portion, and an oxygen supply operable to supply oxygen to the oxygen contactor.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 1, 2016
    Inventors: Mark B. Robertson, David O'Keefe, John D. Cox, Daniel T. White
  • Patent number: 9255455
    Abstract: Aspects of the present disclosure also involved a method of processing waste, such as drill cuttings, involving the operations of receiving a waste material comprising a liquid material and a solid material, the waste material received directly from a source wherein the waste material is warm. The source may be a drilling operation and the waste material may be drill cuttings from the drilling operation. The method further involving pumping the warm waste material to a separation mechanism, such as a dryer, that separates a portion of the solid material (e.g., cuttings) from a portion of the liquid material (e.g., drilling fluid). The method may further involve mixing the separated solid material with a bioremediation agent.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 9, 2016
    Assignee: Confluence Energy, LLC
    Inventor: Mark Joseph Mathis
  • Patent number: 9226475
    Abstract: An apparatus for testing and researching aquatic species is provided. The apparatus includes a housing rack for housing a tank. The apparatus further includes one or more dividers for dividing the at least one tank into one or more compartments. The apparatus further includes a collection channel and a downspout in each compartment for draining of water from each compartment. The apparatus further includes one or more lids for covering the one or more compartments.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: January 5, 2016
    Assignee: R&D AQUATICS, LLC
    Inventor: Daniel Anthony Castranova
  • Patent number: 9175463
    Abstract: Various embodiments of a modular catch basin for implementation in a high performance bioswale are disclosed. The modular catch basin containing bio-media in bio-media filters to treat urban run-off. Method of installing and maintaining the modular catch basin are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 3, 2015
    Inventor: Guy Alan Stivers
  • Patent number: 9133042
    Abstract: A wastewater treatment facility with a rotating biological contactor (“RBC”) that has a control system. The RBC sits in a tank that receives wastewater to be purified over which a reversible rotatable shaft is supported. One or more stages of rotating disk assembles progressively purify incoming wastewater. Each stage is oriented transversely to the shaft and has a plurality of disk assemblies. Each disk assembly has a number of disks that are sandwiched between end plates. Each of the disks comprises an innermost monolithic ring surrounded by multiple concentric truncated pie-shaped segments. Posts extend from the front and back faces of the disks for stirring wastewater and for offering numerous sites to which biomass may adhere and be suspended in the wastewater or exposed to ambient atmosphere during rotation.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 15, 2015
    Assignee: BIOMASS TECHNOLOGIES, LLC
    Inventor: Indra R. Baxi
  • Patent number: 9115010
    Abstract: By using a boric acid-resistant anion exchange resin as the anion exchange resin used in a demineralizer that purifies the primary cooling water in a pressurized-water reactor power plant, even when a boric acid-containing primary cooling water is brought into contact with the anion exchange resin disposed in the demineralizer, the generation of breaking or cracking in the anion exchange resin can be prevented.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: August 25, 2015
    Assignee: ORGANO CORPORATION
    Inventors: Satoshi Kasahara, Yusuke Suwa, Chika Kenmochi
  • Patent number: 9079784
    Abstract: A slow/intermittent sand filter that purifies polluted water by flowing through sand in a manner that achieves greater purity and permits simpler and more effective maintenance than existing filters.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 14, 2015
    Inventor: E. Neal Caldwell
  • Publication number: 20150136694
    Abstract: Water treatment and remediation processes for hormones and/or endocrine disrupting chemicals are disclosed. A bioreactor apparatus is provided having hormone degrading microbes suitable for forming a biofilm for such remediation processes wherein the water containing the hormones and/or endocrine disrupting chemicals provide a substrate for the biofilm. Methods of regenerating the bioreactors and filters for water treatment are disclosed. Additional applications of use for the water treatment and remediation include, for example, agricultural applications and consumer applications. Methods of employing the bioreactors and filters, methods of regenerating the bioreactor, kits, and assays for specific hormones and/or endocrine disrupting chemicals are also disclosed.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: MICROBIAL REMEDIATION TECHNOLOGIES, INC.
    Inventor: Renee Loretta LaFond