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    METHOD AND SYSTEM FOR THE EFFICIENT AND SUSTAINABLE ELECTROCHEMICAL TREATMENT OF WASTEWATER
    11.
    发明申请
    METHOD AND SYSTEM FOR THE EFFICIENT AND SUSTAINABLE ELECTROCHEMICAL TREATMENT OF WASTEWATER 有权

    公开(公告)号：US20230026118A1

    公开(公告)日：2023-01-26

    申请号：US17610646

    申请日：2020-05-12

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Victor Ka Lun Leung ,  Wing Kan Wong

    IPC: C02F1/467 ,  C02F1/461 ,  C02F1/00

    Abstract: A system for an efficient and sustainable electrochemical treatment of wastewater comprises a reactor tank, a first electrolyzer with a stack of electrolytic cells, each electrolytic cell comprising an anode of a first composition, and a second electrolyzer with a stack of electrolytic cells, each electrolytic cell comprising an anode of a second composition, and a contaminant concentration measuring device for monitoring the contaminant concentration in the reactor tank to the first or to the second electrolyzer. Wastewater to be treated is supplied from the reactor tank to the first electrolyzer until the contaminant concentration becomes substantially constant as measured by the contaminant removal rate being around 0 mg/h, which indicates the buildup of byproducts generated in the first electrolyzer, at which time the wastewater is supplied from the reactor tank to the second electrolyzer with anodes which can efficiently treat the byproducts of the reaction in the first electrolyzer.

    METHOD AND SYSTEM FOR WASTEWATER TREATMENT BY MEMBRANE FILTRATION AND ELECTROCHEMICAL OXIDATION
    15.
    发明公开
    METHOD AND SYSTEM FOR WASTEWATER TREATMENT BY MEMBRANE FILTRATION AND ELECTROCHEMICAL OXIDATION 审中-公开

    公开(公告)号：US20240092666A1

    公开(公告)日：2024-03-21

    申请号：US18257849

    申请日：2021-12-16

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Victor Ka Lun LEUNG ,  Geoffrey Sean MILBURN ,  Goran SPARICA

    IPC: C02F9/00 ,  C02F1/44 ,  C02F1/467

    CPC classification number: C02F9/00 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4672 ,  C02F2101/12

    Abstract: A system for wastewater treatment comprises a membrane filtration device which receives the stream of pre-treated wastewater stream from the pre-treatment unit and generates a reject stream which is supplied to an electrochemical oxidation reactor which generates a reactor effluent stream which is divided into a recirculated wastewater stream that is recycled back to the equalization tank and a reactor discharge stream that is discarded from the system. The target fraction ratio between the volume of the recirculated wastewater stream and the volume of the reactor discharge stream is controlled based on the target total dissolved solids amount in the wastewater to be treated, on the amount of regulated organic substances in the wastewater which are treated by the electrochemical oxidation reactor to increase the efficiency of the electrochemical oxidation reactor to a target value and on the composition of the wastewater being discharged from the system.

    Electrolytic cell with bipolar electrodes for wastewater treatment
    16.
    发明授权
    Electrolytic cell with bipolar electrodes for wastewater treatment 有权

    公开(公告)号：US11613480B2

    公开(公告)日：2023-03-28

    申请号：US16982002

    申请日：2019-03-20

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Brendan Wood

    IPC: C25B9/17 ,  C25B1/04 ,  C02F1/461 ,  C02F1/467

    Abstract: An electrolytic cell for treating wastewater comprises an anode assembly, a cathode assembly and at least one bipolar electrode assembly placed between the anode and the cathode assembly such that the anodes of the anode assembly and the cathodes of the cathode assembly are interleaved with the bipolar plates of the bipolar electrode assembly. Each bipolar electrode assembly comprises a series of bipolar electrodes which operate as an anode or as a cathode, stacked in a vertical direction along a threaded bolt made of an electrically conductive material such that the bipolar electrodes operating as anodes are oriented in an opposite direction to the bipolar electrodes operating as cathodes and have their ends overlapping over a predetermined portion and being separated by conductive spacers. In preferred embodiments, only the anodes and the bipolar electrodes operating as anodes are coated with catalyst which saves costs and simplifies the manufacturing process.

    Method of operating a wastewater treatment system
    17.
    发明授权
    Method of operating a wastewater treatment system 有权

    公开(公告)号：US11608281B2

    公开(公告)日：2023-03-21

    申请号：US16629932

    申请日：2018-07-12

    Applicant: Axine Water Technologies Inc.

    Inventor： Julia Lynne Krasovic

    IPC: C02F1/467 ,  C02F1/461 ,  C25B15/02 ,  C02F1/00 ,  C25B13/08 ,  C25B9/19 ,  C25B9/70 ,  C25B11/051 ,  C02F101/10

    Abstract: A method for operating a wastewater treatment system is disclosed wherein the wastewater treatment system comprises at least one electrochemical cell comprising dimensionally stable electrodes having the same catalyst composition, the electrodes being immersed in wastewater and being connected to a power supply and wherein the voltage at the power supply is monitored and the polarity of the electrochemical cell(s) is reversed when the recorded voltage increases by a predetermined voltage difference. The wastewater treatment system can comprise at least one electrochemical cell which is kept inactive while the active electrochemical cells are operating. The inactive cell(s) can be activated when all the electrodes of the active cells are consumed as indicated by another increase in voltage at the power supply after the polarity of the active cells has been once reversed.

    Efficient treatment of wastewater using electrochemical cell
    19.
    发明授权
    Efficient treatment of wastewater using electrochemical cell 有权

    公开(公告)号：US10266429B2

    公开(公告)日：2019-04-23

    申请号：US14648414

    申请日：2013-12-02

    Applicant: Axine Water Technologies Inc.

    Inventor： Colleen Legzdins

    IPC: C02F1/461 ,  C02F1/467 ,  C25B1/10 ,  C25B15/08 ,  C25B9/00 ,  C25B9/18

    Abstract: An efficient method and system for the electrochemical treatment of waste water comprising organic and/or inorganic pollutants is disclosed. The system comprises at least first and second solid polymer electrolyte electrolytic cell stacks in which each cell comprises a solid polymer, proton exchange membrane electrolyte operating without catholyte or other supporting electrolyte. The first and second stacks differ either in construction or operating condition. The cell stack design and operating conditions chosen provide for significantly greater operating efficiency.

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