Patents Examined by Nam X. Nguyen
  • Patent number: 10800670
    Abstract: A wastewater treatment system includes a first sub-system having a biological treatment unit and a second sub-system having a dissolved air flotation unit. A method of treating wastewater includes directing a first stream of wastewater to a biological treatment unit and directing an overflow stream of wastewater to a dissolved air flotation unit. A method of facilitating treatment of overflow wastewater in a biological treatment system includes connecting an overflow treatment system in a parallel configuration with the biological treatment system, the overflow treatment system having a dissolved air flotation unit, and directing a fraction of activated sludge from the biological treatment system to the overflow treatment system.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 13, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventor: Nathan Antonneau
  • Patent number: 10793456
    Abstract: The present invention relates to a bio-assisted treatment of wastewater containing sulphide, phenols and hydrocarbons. Further, the present invention relates to a process for eliminating sulphide and other sulphur compounds including, but not limited to, mercaptans, disulfides, PAHs, phenols and hydrocarbons.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: October 6, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Manoj Kumar, Amardeep Singh, Saket Ranjan, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Patent number: 10773984
    Abstract: Media beds containing worms living in an oxygenated aqueous environment are provided for the remediation of water containing excreted and other oxidizable organic or chemical waste. The media beds may include cultivated plant life in addition to the cultivated worm population for the uptake of nitrates, as well as other nutrients rendered soluble through digestion of the worms to remediate water to levels sufficient to be safely returned to the environment; alternatively the water may be remediated to higher nitrate levels in the absence of plants so that the water can be used in subsequent fertilization operations outside the waste treatment system. The system further includes cultivated microbial populations that may be present in the media beds and/or in separate bioreactors within the system.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 15, 2020
    Assignee: INTEGRATED AGRICULTURAL SYSTEMS, INC.
    Inventors: Paul W. Nickerson, David K. Foster
  • Patent number: 10745306
    Abstract: Provided is an aquifer storage and recovery system, in which microbes extracted from an underground aquifer are involved in an assimilable organic carbon (AOC) removal mechanism and applied to an aerobic reactor, and a predetermined portion of assimilable organic carbon in raw water is removed through the aerobic reactor.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 18, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Pil Jeong, Jae Woo Choi, Kyungjin Cho, Hien Thi Nguyen, Youngjae Kim, Am Jang, Seunghak Lee, Seockheon Lee
  • Patent number: 10717050
    Abstract: A spiral wound membrane module adapted for hyperfiltration and including at least one membrane envelope and feed spacer sheet wound about a central permeate tube to form an inlet and outlet scroll face and an outer periphery, wherein the feed spacer sheet includes: i) a feed entrance section extending along the permeate collection tube from the inlet scroll face toward the outlet scroll face, ii) a feed exit section extending along the outer periphery from the outlet scroll face toward the inlet scroll face, and iii) a central feed section located between the feed entrance section and the feed exit section; and wherein the feed entrance section has a median resistance to flow in a direction parallel to the permeate collection tube that is less than 25% of the median resistance to flow of the central feed section in a direction perpendicular to the permeate collection tube.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 21, 2020
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
    Inventors: Steven D. Jons, Michael S. Koreltz, Luke Franklin
  • Patent number: 10703658
    Abstract: A tank is disclosed as having a tub therein that divides the volume of the tank into an anoxic chamber inside the tub and an equalization chamber outside of the tub. The anoxic chamber anoxically treats wastewater while the equalization chamber equalizes fluctuations in wastewater influent as well as provides a holding space for wastewater if power to the tank is cut off. The tank can be part of a system for treating wastewater, such as one with an anaerobic tank having an anaerobic chamber for anaerobically treating wastewater, an aerobic/filtration tank having a filtration sub-tank therein that divides the volume of the tank into a filtration chamber inside the sub-tank and an aerobic chamber outside of the sub-tank. The aerobic chamber can aerobically treat wastewater while the filtration chamber has a membrane unit for filtering wastewater.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: July 7, 2020
    Assignee: TANGENT COMPANY LLC
    Inventors: John Merrin, Travis Genshock, Brendan Matheny, Paul Wadham, Adam Arnold
  • Patent number: 10639590
    Abstract: A filtration system for liquid, particularly raw water, having at least one filtration module for filtering the liquid, a first inlet pipe for feeding liquid to the filtration module, a second inlet pipe for feeding liquid to the filtration module and at least one outlet pipe for discharging filtrate from the filtration module. A cleaning branch is arranged between the first inlet pipe and the second inlet pipe, and at least one dosing feeder for adding a cleaning chemical is connected to the cleaning branch. Additionally, a method for chemically rinsing such a filtration, wherein a cleaning chemical is added via a dosing feeder connected to a cleaning branch which is arranged between the first inlet pipe and the second inlet pipe.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: May 5, 2020
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC
    Inventors: Christian Staaks, Peter Berg
  • Patent number: 10633268
    Abstract: Provided is a water treatment module including a bundle of hollow fiber membranes that includes a treatment portion extending between bottom and top ends and at least one gas diffuser. The membranes may be gas permeable and water impermeable. At least one end of the hollow fiber membranes is linked to a source of biofilm growth-supporting gas (BGSG) and configured to permit inlet of said BGSG into the hollow fiber membranes. Also provided herein are devices, systems and methods making use of the module.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 28, 2020
    Assignee: EMEFCY LTD.
    Inventors: Ronen-Itzhak Shechter, Steven D. Kloos
  • Patent number: 10626030
    Abstract: Electromagnetic processing of fluid materials is disclosed. Separation of one or more ionic components of a fluid, and combination of one or more ionic components in a fluid, are discussed.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: April 21, 2020
    Inventor: Anthony J. Orler
  • Patent number: 10618829
    Abstract: The present disclosure of a sewage treatment device includes a compression tank that is cylinderically shaped, a stirring structure communicated with the compression tank by a first intermediate pipe, and a detection box communicated with the stirring structure by a second intermediate pipe. A telescopic driving cylinder is arranged on an upper portion of the compression tank and a conveying pipe is connected to a top surface of the compression tank to deliver external sewage to an interior of the compression tank. A diameter of the conveying pipe ranges from 8-15 cm; A filter interlayer is arranged in an interior of the compression tank and the filter interlayer is annular. An end of a driving shaft of the telescopic drive cylinder is connected with a compression body. An outer periphery of the compression body is contacted with an inner wall of the filter interlayer.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 14, 2020
    Inventor: Zhijun Wang
  • Patent number: 10619339
    Abstract: A sewage treatment device includes a stirring structure, a filter box, a tank filter, and a detection structure which are connected in sequence. Conveying pipelines are connected to an exterior of the stirring structure to convey sewage to an interior of the stirring structure. First water pumps are connected to the conveying pipelines to provide conveying power. An upper-layer stirrer assembly, a lower-layer stirrer assembly and a rotating shaft configured to install the upper-layer stirrer assembly and the lower-layer stirrer assembly are arranged in the interior of the stirring structure. A lifting driving cylinder drives the upper-layer stirrer assembly and the lower-layer stirrer assembly to move up and down. The upper-layer stirrer assembly includes an engaging block axially engaged with the rotating shaft and stirring blades arranged around the periphery of the engaging block at equal intervals.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: April 14, 2020
    Inventor: Zhijun Wang
  • Patent number: 10610589
    Abstract: An apparatus and method is provided for healing and regeneration of live human and animal bodies and influencing interaction and intercommunication at the cellular level. The apparatus can include one or more environmental and/or body sensors. An electrical circuit can also be provided to produce a square or trapezoidal wave that is delivered to a transducer for application, preferably timed at specific frequencies Delta, Theta, Alpha, to Beta, based on information received from the one or more sensors. In certain embodiments, a DC power source can be provided which allows the apparatus to be portable. A wireless communication module can also be provided. An apparatus and method for structuring water is also disclosed.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 7, 2020
    Inventors: Iulius Vivant Dutu, Sara Julia Dutu
  • Patent number: 10561963
    Abstract: A liquid-liquid contact device includes: an internal casing surrounding an inner chamber for providing countercurrent contact between a light liquid and a heavy liquid; an external casing surrounding the internal casing so as to form an outer chamber around the internal casing; a light liquid introduction tube guiding the light liquid to the inner chamber; and a heavy liquid introduction tube guiding the heavy liquid to the inner chamber. The internal casing has an upper opening and a lower opening which opens at a location below the upper opening. The external casing has a heavy liquid discharge outlet through which the heavy liquid is allowed to be discharged from the outer chamber, and a light liquid discharge outlet which is disposed above the heavy liquid discharge outlet and through which the light liquid is allowed to be discharged from the outer chamber.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: February 18, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Akira Matsuoka, Koji Noishiki, Tomohiro Ozono
  • Patent number: 10537837
    Abstract: Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nanofiber layer to the geometric mean diameter of fibers at the downstream face of the nanofiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: January 21, 2020
    Assignee: Cummins Filtration IP, Inc.
    Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
  • Patent number: 10533148
    Abstract: A membrane photobioreactor for treating nitrogen and phosphorus that are out of limits in a biogas slurry and treating method thereof, relating to biogas slurry treatment. The membrane photobioreactor for treating nitrogen and phosphorus that are out of limits in a biogas slurry is provided with a biogas slurry storage tank, peristaltic pumps, a microalgae cultivating tank, an air pump, a membrane photobioreactor and a hollow fiber membrane.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: January 14, 2020
    Assignee: XIAMEN UNIVERSITY
    Inventors: Qingbiao Li, Xi Chen, Ning He, Yuanpeng Wang, Liang Shen, Haitao Wang
  • Patent number: 10526777
    Abstract: A pump-storage device includes a tank, a treatment container, and a vacuum pump. The treatment container includes a first chamber in communication with an inlet. The first chamber includes a bottom wall having a first valve intercommunicated with a second chamber. The second chamber includes a bottom wall having a second valve. The treatment container includes a first control valve having a first duct in communication with the first chamber, a second duct in communication with the second chamber, and a third duct in communication with the tank. The treatment container includes an actuation cylinder for actuating an actuation rod to extend or retract. A first valve plate and a second valve plate are mounted on the actuation rod for controlling opening and closing of the first valve and the second valve. The treatment container includes a second control valve in communication with the first chamber and the vacuum pump.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: January 7, 2020
    Inventor: Shih-Yuan Ke
  • Patent number: 10519619
    Abstract: A drain assembly for being placed inground includes a first panel and a second panel spaced-apart from the first panel, a plurality of supports extending between the first panel and the second panel, a bottom or pipe extending between a bottom portion of the first panel and the second panel, and a cap extending between a top portion of the first panel and the second panel. The first panel may define a plurality of drainage apertures. A related method is also provided.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 31, 2019
    Assignee: The American Drain Company, LLC
    Inventor: Kevin Tyler Kondas
  • Patent number: 10450515
    Abstract: A separation tank for crude oil. Fluid enters an inlet section of a center column of the tank via an offset inlet pipe so the fluid enters swirling. Solids that settle in the inlet section are removed by a center column drain and a solids removal system. Free gas rises and exits from the top of the tank. Liquid flows out of the center column via a diffuser that spirals the fluid evenly toward the wall of the tank where oil coalesces and wicks upward. Liquid flows downward around two flow diverting baffles where more oil coalesces and wicks upward via an oil conduit into the oil layer. The water flows under the lower flow diverting baffle and exits the tank through the outlet section. A large circular oil collector weir uniformly removes oil from the oil layer. Interface draw offs located below the oil-water interface remove excess BS&W.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 22, 2019
    Assignee: KBK Industries, LLC
    Inventor: Will D. Ball, IV
  • Patent number: 10414678
    Abstract: A wastewater treatment system is provided having a pretreatment tank which receives wastewater from a wastewater source, and an aeration tank which is in fluid communication with the pretreatment tank. A recirculation pump is carried in the aeration tank and returns wastewater from the aeration tank to the pretreatment tank. The recirculation pump returns the wastewater according to a recirculation ratio R:I where R is the volumetric flow rate of wastewater through the recirculation pump and I is average volumetric flow rate of wastewater entering the pretreatment tank. A control panel cycles the recirculation pump on and off according to the recirculation ratio.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 17, 2019
    Inventors: Stephen Sabo, Steven Davis, James Conley
  • Patent number: 10399042
    Abstract: A filtration filter comprises a metallic mesh having a circumferential shape and radially inner and outer portions. The metallic mesh is adapted to filter out a filtration target object contained in a fluid passing through the membrane. First and second frame members hold the outer portion there between so as to create first and second bent sections separated by a transition section extending between the first and second bent sections. The transition section includes at least one streaked projection.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 3, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takashi Kondo, Masaru Banju, Seiichi Matsumoto, Seiji Kamba, Wataru Yamamoto, Yoshiji Okamoto