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公开(公告)号：US20240391811A1
公开(公告)日：2024-11-28
申请号：US18671245
申请日：2024-05-22
Inventor： Youneng Tang
Abstract: Described herein are systems and methods for continuous metabolism of contaminants of emerging concern. An example bioreactor can include at least one screen positioned downstream in relation to the at least one adsorbent layer, wherein: the bioreactor system is configured to retain within the housing the biofilm that becomes detached from the at least one adsorbent layer, the housing is configured to receive through the inlet a flow of an influent comprising water contaminated with the at least one target contaminant, and the bioreactor system is configured to discharge an effluent from the outlet, which comprises water with a lower concentration of the contaminant compared to the influent.
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公开(公告)号：US12168622B2
公开(公告)日：2024-12-17
申请号：US18002450
申请日：2021-06-17
Applicant: Arizona Board of Regents on Behalf of Arizona State University , Florida State University Research Foundation, Inc.
Inventor： Youneng Tang , Bruce Rittmann , Chen Zhou , Yihao Luo , Rosa Krajmalnik-Brown
IPC: C02F1/70 , B01J23/44 , B01J35/00 , B01J35/23 , B01J35/30 , B01J35/39 , C02F3/10 , C02F3/34 , C02F101/34 , C02F101/36
Abstract: Disclosed herein are systems and methods for removing trichloroethane (TCA), trichloroethene (TCE), and 1,4-dioxane (1,4-D) from contaminated liquids. The system and methods rely on catalyst reduction of TCA and TCE, where the reduced products are then degraded by microorganisms The system comprises a first reactor comprising a catalyst film of precious metal nanoparticles deposited on a first nonporous membrane and a second reactor comprising a biofilm of microorganisms that are capable of degrading ethane and 1,4-D deposited on a second nonporous membrane. The first reactor further comprises a hydrogen gas source, wherein the hydrogen gas source delivers hydrogen to the gas-phase side of the first nonporous membrane, and the catalyst film is deposited on the liquid-phase side. The second reactor further comprises an oxygen gas source, wherein the oxygen gas source delivers oxygen to the gas-phase side of the second non-porous membrane, and the biofilm is deposited on the liquid-phase side.
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3.发明授权公开(公告)号：US11787709B2
公开(公告)日：2023-10-17
申请号：US17212244
申请日：2021-03-25
Inventor： Bruce R. Locke , Robert J. Wandell , Youneng Tang
IPC: C02F1/46 , C02F1/70 , H05H1/48 , C02F101/36 , C02F103/06
CPC classification number: C02F1/4608 , C02F1/70 , H05H1/48 , C02F2101/36 , C02F2103/06 , C02F2201/46
Abstract: A method for reacting a liquid phase chemical species includes the steps of providing liquid phase containing at least one liquid phase chemical species, providing a gas phase, and providing a reactor vessel for containing the liquid phase and the gas phase. The liquid phase and the gas phase are placed in the reactor vessel so as to form a liquid-gas interface between the liquid phase and the gas phase within the reactor vessel. A pulsed discharge cathode and anode are provided for creating a pulsed discharge electric field at the liquid-gas interface. A pulsed power input to the pulsed discharge cathode and anode is provided, thereby creating a plasma comprising ions at the liquid-gas interface. A secondary electric field is directed transverse to the liquid-gas interface, wherein the secondary electric field will drive ions from the gas phase into the liquid phase to react with the liquid phase species.
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4.发明授权公开(公告)号：US10988390B2
公开(公告)日：2021-04-27
申请号：US16514704
申请日：2019-07-17
Inventor： Bruce R. Locke , Robert J. Wandell , Youneng Tang
IPC: C02F1/46 , C02F1/70 , H05H1/48 , C02F101/36 , C02F103/06
Abstract: A reactor system for reacting liquid phase chemical species in a liquid includes a reactor vessel for containing the liquid phase and a gas phase. The reactor vessel can have a gas injection port, a gas exit port, and a liquid-gas interface location within the reactor vessel. A pulsed discharge cathode and anode are provided for creating a pulsed discharge electric field at the liquid-gas interface location. A pulsed discharge power supply delivers a pulsed power input to the pulsed discharge cathode and anode, and thereby creates a plasma comprising ions at the liquid-gas interface location. A secondary electric field source is provided for directing a secondary electric field transverse to the liquid-gas interface. The secondary electric field will drive some of the ions from the gas phase into the liquid phase to react with the liquid phase chemical species. A method for reacting a liquid phase chemical species is also disclosed.
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Patent Agency Ranking
5.发明申请公开(公告)号：US20180215639A1
公开(公告)日：2018-08-02
申请号：US15883563
申请日：2018-01-30
Inventor： Bruce R. Locke , Youneng Tang , Robert Wandell
Abstract: A mixture comprising liquid water, a gas and at least one organic compound are injected into a non-thermal gas-liquid plasma discharge reactor to generate a flowing liquid film region with a gas stream flowing alongside. A plasma discharge is propagated along the flowing liquid film region. Water is dissociated and reactive species such as hydroxyl radicals, hydrogen peroxide and nitrogen oxides are formed. The organic compound reacts with the reactive species such as hydroxyl radicals and hydrogen peroxide present in the flowing liquid film region and in the flowing gas stream to produce organic compound dissociation products. At least some organic compound dissociation products and nitrogen oxides are transferred to a bioreactor for further degradation of organic compounds. The nitrogen oxides are used as nutrients for bacteria in the bioreactor. Feedback control of the plasma reactor is based on conditions detected and determined in the biological reactor.
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6.发明申请公开(公告)号：US20210206667A1
公开(公告)日：2021-07-08
申请号：US17212244
申请日：2021-03-25
Inventor： Bruce R. Locke , Robert J. Wandell , Youneng Tang
Abstract: A reactor system for reacting liquid phase chemical species in a liquid includes a reactor vessel for containing the liquid phase and a gas phase. The reactor vessel can have a gas injection port, a gas exit port, and a liquid-gas interface location within the reactor vessel. A pulsed discharge cathode and anode are provided for creating a pulsed discharge electric field at the liquid-gas interface location. A pulsed discharge power supply delivers a pulsed power input to the pulsed discharge cathode and anode, and thereby creates a plasma comprising ions at the liquid-gas interface location. A secondary electric field source is provided for directing a secondary electric field transverse to the liquid-gas interface. The secondary electric field will drive some of the ions from the gas phase into the liquid phase to react with the liquid phase chemical species. A method for reacting a liquid phase chemical species is also disclosed.
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7.发明授权公开(公告)号：US11008234B2
公开(公告)日：2021-05-18
申请号：US16225397
申请日：2018-12-19
Inventor： Youneng Tang , Gang Chen
IPC: C02F1/467 , C02F1/58 , C02F1/42 , C02F3/00 , C02F101/30 , C02F101/10 , C02F101/22
Abstract: Systems and methods for treating a metal or metalloid ion-contaminated liquid are provided. The method may include (i) feeding the metal or metalloid ion-contaminated liquid into a bioelectrochemical reactor containing a bacteria selected by the cathode to produce extracellular metal or metalloid nanoparticles; and (ii) operating the bioelectrochemical reactor anaerobically to reduce the metal or metalloid ions in the metal or metalloid ion-contaminated liquid to extracellular metal or metalloid nanoparticles. The method may further include separating the metal or metalloid nanoparticles from the bacteria with no energy input. A bioelectrochemical reactor system for production of extracellular metal and metalloid nanoparticles may include a bioelectrochemical reactor, a separation device, and a tangential flow filtration unit.
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公开(公告)号：US10556817B2
公开(公告)日：2020-02-11
申请号：US15883563
申请日：2018-01-30
Inventor： Bruce R. Locke , Youneng Tang , Robert Wandell
IPC: C02F9/00 , B01J19/08 , B01J19/18 , C02F3/34 , H05H1/46 , G05D7/06 , C02F103/06 , C02F101/36 , C02F101/34
Abstract: A mixture comprising liquid water, a gas and at least one organic compound are injected into a non-thermal gas-liquid plasma discharge reactor to generate a flowing liquid film region with a gas stream flowing alongside. A plasma discharge is propagated along the flowing liquid film region. Water is dissociated and reactive species such as hydroxyl radicals, hydrogen peroxide and nitrogen oxides are formed. The organic compound reacts with the reactive species such as hydroxyl radicals and hydrogen peroxide present in the flowing liquid film region and in the flowing gas stream to produce organic compound dissociation products. At least some organic compound dissociation products and nitrogen oxides are transferred to a bioreactor for further degradation of organic compounds. The nitrogen oxides are used as nutrients for bacteria in the bioreactor. Feedback control of the plasma reactor is based on conditions detected and determined in the biological reactor.
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9.发明申请公开(公告)号：US20190194040A1
公开(公告)日：2019-06-27
申请号：US16225397
申请日：2018-12-19
Inventor： Youneng Tang , Gang Chen
CPC classification number: C02F1/4676 , C02F1/42 , C02F1/58 , C02F2001/425 , C02F2101/106 , C02F2101/30
Abstract: Systems and methods for treating a metal or metalloid ion-contaminated liquid are provided. The method may include (i) feeding the metal or metalloid ion-contaminated liquid into a bioelectrochemical reactor containing a bacteria selected by the cathode to produce extracellular metal or metalloid nanoparticles; and (ii) operating the bioelectrochemical reactor anaerobically to reduce the metal or metalloid ions in the metal or metalloid ion-contaminated liquid to extracellular metal or metalloid nanoparticles. The method may further include separating the metal or metalloid nanoparticles from the bacteria with no energy input. A bioelectrochemical reactor system for production of extracellular metal and metalloid nanoparticles may include a bioelectrochemical reactor, a separation device, and a tangential flow filtration unit.
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