Patents Examined by Nader Hossaini
  • Patent number: 9758394
    Abstract: Systems and methods for treating contaminated water from gas wells by adding an inorganic coagulant and a low molecular weight polymer to the contaminated water to increase the size of solid particulates in the water and to thereby allow the solid particulates to be filtered or to otherwise be removed from the water are disclosed herein. While the inorganic coagulant can be any suitable coagulant, in some cases the coagulant is selected from aluminum chlorohydrate, polyaluminum chloride, aluminum sulfate, and ferric sulfate. Similarly, the polymer can comprise any suitable polymer, such as epi/dma, a condensation product of epichlorohydrin and dimethyl amine. The described systems and methods can clean the contaminated water so that the water can then be treated in a variety of other manners, which may include reverse osmosis, deionization, treatment with mixed bed deionizers, electro-separation, fraction distillation, distillation, and other suitable water cleansing processes.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: September 12, 2017
    Assignee: WATER SOLUTIONS, INC.
    Inventor: Stephen D. Allen
  • Patent number: 9527037
    Abstract: A method for processing an amine-based solvent contaminated by the introduction of sulfur oxides is provided. A potassium compound is introduced into a contaminated solvent, and the contaminated solvent is cooled so that a solubility of a potassium sulfate becomes less than a specified concentration of potassium sulfate. Further, an oxidizing agent is introduced into the contaminated solvent so that a potassium sulfite is oxidized to potassium sulfate. The potassium sulfate is filtered out, wherein a prepared solvent is formed. Further, a device for processing an amine-based, sulfur oxide-contaminated solvent is provided.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 27, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Rainald Forbert, Stefan Hauke, Ralph Joh, Frank Olschewski, RĂ¼diger Schneider
  • Patent number: 9470007
    Abstract: An efficient filtration process of water from a tank is performed over a small volume of water and not on the totality of the water from the tank. The process includes emitting ultrasonic waves in the tank; and adding a flocculant agent to the water. The tank bottom is covered with a suctioning device which suctions a water flow with flocculated particles, discharging to a collecting effluent line and the effluent flow of the suctioning device is filtered from the collecting effluent line. Filtered flow is returned to the tank. A suctioning device is used in the efficient filtration process.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 18, 2016
    Assignee: Crystal Lagoons (Curacao) B.V.
    Inventor: Fernando Benjamin Fischmann Torres
  • Patent number: 9428639
    Abstract: Flocculant compositions containing a cellulosic compound, a superabsorbant polymer, and a flocculant, are useful for preventing the formation of an aqueous phase during the shipping of fly ash slurries.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: August 30, 2016
    Assignee: PROFILE PRODUCTS LLC
    Inventors: Kevin S. Spittle, Gary L. Bowers
  • Patent number: 9404686
    Abstract: A process for drying fine tailings is provided. The process, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and commence flocculation of the fine tailings and may comprise rapid turbulent mixing; subjecting the fine tailings to flocculation and water release conditioning in-line to cause formation and rearrangement of floes and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the flocs; and depositing the fine tailings to allow the release of water, formation of a non-flowing fine tailings deposit and drying of the non-flowing fine tailings deposit. The process enables effective in-line dispersion, flocculation and water release, resulting in reliable deposition and drying of the fine tailings deposit.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 2, 2016
    Assignee: SUNCOR ENERGY INC.
    Inventors: Adrian Revington, Marvin Harvey Weiss, Patrick Wells, Thomas Hann
  • Patent number: 9254453
    Abstract: Method for removing hydrogen sulfide from fluids such as oil and gas well drilling, treatment, and production fluids and effluents from hydrocarbon operations and mineral mining operations. The sulfide scavenger used in the method is a gluconate salt other than ferrous gluconate. The gluconate salt is added to the fluid along with an iron source if iron is not already in the fluid. The gluconate reacts with the iron and forms iron gluconate in the fluid, which in turn reacts with the hydrogen sulfate to form iron sulfide which may be readily removed from the fluid.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: February 9, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cato Russell McDaniel, Carl J. Thaemlitz
  • Patent number: 9138668
    Abstract: A method of separating a mixture of liquid and insoluble solids in a filter press may comprise: diluting the mixture; adding a flocculating agent to the diluted mixture and stirring to form a chemically processed mixture; pumping the chemically processed mixture into a chamber between two filter plates in the filter press to form a filter cake, wherein the chamber is lined by filter cloths, and wherein, during the pumping, filtrate is forced through the filter cloths and out of the chamber; heating the filter cake in the chamber, wherein, during the heating, filtrate is forced through the filter cloths and out of the chamber; and releasing dried filter cake from the chamber. Furthermore, before the diluting, additional solids may be added to the mixture. The method may be used to dewater drilling mud, and mixtures of drilling mud with drill cuttings.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: September 22, 2015
    Inventors: Daniel J. Simpson, Ferdinand Kogler
  • Patent number: 9080342
    Abstract: The present invention comprises an efficient filtration process of water from a tank, where the filtration is performed over a small volume of water and not on the totality of the water from the tank; the process comprises the following steps: (a) emitting ultrasonic waves in the tank; (b) adding a flocculant agent to the water; (c) covering the tank bottom with a suctioning device which suctions a water flow with flocculated particles, discharging to a collecting effluent line; (d) filtering the effluent flow of the suctioning device from said collecting effluent line; and (e) returning the filtered flow to the tank. The present invention additionally comprises a suctioning device used in said efficient filtration process.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: July 14, 2015
    Assignee: Crystal Lagoons (Curacao) B.V.
    Inventor: Fernando Fischmann T.
  • Patent number: 8945394
    Abstract: Disclosed herein are systems and methods for removing fine particulate matter from a fluid, comprising a separator that separates an inflow fluid stream into an overflow fluid path and an underflow fluid path, where the underflow fluid path is treated with a tethering material that attaches to the coarse particulate matter to form tether-bearing anchor particles and where the overflow fluid path is treated with an activating material so that the activating material interacts with the fine particulate matter to form activated particles. After these treatments, the underflow fluid path containing the tether-bearing anchor particles is commingled with the overflow fluid path containing the activated particles, so that a removable complex is produced that can be removed in a settling facility, thereby removing the fine particulate matter from the fluid.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: February 3, 2015
    Assignee: Soane Energy, LLC
    Inventors: Patrick D. Kincaid, Robert P. Mahoney, David Soane
  • Patent number: 8945402
    Abstract: One embodiment of the invention disclosed is an apparatus for separating a solid material from a mixture containing oil, water, clay, sand, soil and drill cuttings. The apparatus comprise a series of processing cells and wash tanks. Hydrocyclonic devices are also used to further purify the solid mixture for disposal.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: February 3, 2015
    Inventor: Larry Saik
  • Patent number: 8887924
    Abstract: A field water purification system is described. The field water purification system includes a container and a filter coupled to an outlet port of the container. The container includes a first layer and a second layer of polymeric material. A first edge of the first layer is bonded to a first edge of the second layer. A second edge of the first layer is bonded to a second edge of the second layer. A first end of the first layer is bonded to a first end of the second layer. The outlet port is disposed in the first layer at a first distance from the first end. A flat water filter is also described. A method for treating water is also described.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: November 18, 2014
    Assignee: Cal Poly Corporation
    Inventors: Trygrve J. Lundquist, Patricia M. Compas-Markman
  • Patent number: 8685253
    Abstract: A method of removing color bodies from a fermentation broth includes precipitating a color-forming impurity (color body) by adjusting the fermentation broth to a pH greater than about 13; filtering our precipitated color-forming impurities from the broth; and bleaching a second color impurity by treating the broth with an oxidizing agent.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 1, 2014
    Assignee: BioAmber S.A.S.
    Inventor: Olan S. Fruchey
  • Patent number: 8641907
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 4, 2014
    Assignee: National Chi Nan University
    Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
  • Patent number: 8641908
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 4, 2014
    Assignee: National Chi Nan University
    Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
  • Patent number: 8613859
    Abstract: Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to an aqueous system. The ratio of monohaloamine to dihaloamine is selected to result in a synergistic biocidal effect.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: December 24, 2013
    Assignee: Hercules Incorporated
    Inventors: Michael J. Mayer, Freddie L. Singleton
  • Patent number: 8603342
    Abstract: The present invention relates to an apparatus and method for collecting solid microparticles floating in water, and more particularly, to a safe, ease to use, and environmental friendly collecting apparatus and method adapted for collecting radioactive solid microparticles floating and depositing in a cooling water tank of nuclear facility or a tank for storing radioactive materials.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: December 10, 2013
    Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive Yuan
    Inventors: Chun-Ping Huang, Kuo-Yuan Chang
  • Patent number: 8597521
    Abstract: This invention relates to a method for selective removal of silica and silicon containing compounds from solutions that include silica and silicon containing compounds, including geothermal brines.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 3, 2013
    Assignee: Simbol Inc.
    Inventor: Stephen Harrison
  • Patent number: 8540885
    Abstract: The use of alkoxylated polyalkanolamines as demulsifiers for splitting oil-water emulsions, especially for splitting crude oil emulsions.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 24, 2013
    Assignee: BASF SE
    Inventors: Sophia Ebert, Andreas Eichhorn
  • Patent number: 8518268
    Abstract: A mobile water filtration apparatus and method for on-site removal of contaminants from raw water comprising a portable platform and a first settling tank secured with respect to the platform. The settling tank includes flocculating agent and a lower portion into which sediment settles. A sloped trough is secured with respect to the platform and has an upper end which receives the flocculating-agent-containing water, a lower end, a plurality of spaced-apart walls between upper and lower ends which define a serpentine flow path, and a plurality of agitators between the walls. A terminal settling tank receives water from the trough lower end and includes a lower portion into which sediment settles and an outlet along an upper portion through which treated water flows. An exemplary apparatus includes a gate corresponding to each wall and defining an opening through which water flows.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: August 27, 2013
    Assignee: Flocate Industries, Inc.
    Inventor: Paul A. Nauertz
  • Patent number: 8512572
    Abstract: A method for precipitating uranium from an aqueous solution and/or sediment comprising uranium and/or vanadium is presented. The method includes precipitating uranium as a uranyl vanadate through mixing an aqueous solution and/or sediment comprising uranium and/or vanadium and a solution comprising a monovalent or divalent cation to form the corresponding cation uranyl vanadate precipitate. The method also provides a pathway for extraction of uranium and vanadium from an aqueous solution and/or sediment.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: August 20, 2013
    Assignee: U.S. Department of Energy
    Inventors: Tetsu K. Tokunaga, Yongman Kim, Jiamin Wan