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    ELECTROCHEMICAL WASTEWATER TREATMENT SYSTEM WITH CONTROL OF SELECTED COMPOUNDS CONCENTRATION IN THE REACTOR
    2.
    发明申请
    ELECTROCHEMICAL WASTEWATER TREATMENT SYSTEM WITH CONTROL OF SELECTED COMPOUNDS CONCENTRATION IN THE REACTOR 有权

    公开(公告)号：US20210403357A1

    公开(公告)日：2021-12-30

    申请号：US17287948

    申请日：2019-10-24

    Applicant: Axine Water Technologies Inc.

    Inventor： Geoffrey Sean Milburn

    IPC: C02F9/00 ,  B01D61/12 ,  B01D61/02 ,  B01D61/08 ,  B01D61/04 ,  B01D61/14 ,  B01D61/16 ,  B01D61/18 ,  B01D61/22 ,  B01D65/02

    Abstract: An electrochemical wastewater treatment system comprises a reactor tank, an electrochemical reactor and a separation device which filters the effluent stream from the reactor tank and generates a treated wastewater stream and a reject stream which is at least partially fed to the electrochemical reactor or to the reactor tank to thereby increase the concentration of selected soluble and insoluble compounds within the reactor. A portion of the reject stream or a portion of the wastewater in the reactor tank can be discharged as a blowdown stream. Flow control means are provided for adjusting the volume of the reject stream and of the blowdown stream for controlling the compounds concentration. The concentration of soluble and insoluble compounds in the reactor is therefore decoupled from the concentration of the compounds in the reactor effluent stream to achieve an improved reactor performance and a higher quality effluent.

    ELECTROCHEMICAL CELL FOR WASTEWATER TREATMENT WITH IMPROVED ELECTRICAL PROTECTION
    3.
    发明申请
    ELECTROCHEMICAL CELL FOR WASTEWATER TREATMENT WITH IMPROVED ELECTRICAL PROTECTION 有权

    公开(公告)号：US20210107811A1

    公开(公告)日：2021-04-15

    申请号：US16606686

    申请日：2018-04-19

    Applicant: Axine Water Technologies Inc.

    Inventor： Brendan Wood ,  Julia Lynne Krasovic

    IPC: C02F1/461 ,  C02F1/467

    Abstract: An electrochemical cell for wastewater treatment comprises a catalyst coated membrane, an open pore mesh placed on each side of the catalyst coated membrane, and a compression frame placed next to each of the open pore meshes. Each compression frame has compression arms spread within the area delimited by the perimeter of the frame to apply a uniform compression force through fasteners which protrude through the compression arms, the open pore meshes and the catalyst coated membrane. Each open pore mesh comprises a flat surface and an embossed surface. The embossed surface can comprise embossed areas around the holes in the open pore mesh, transverse embossed areas which, in the assembled cell, are placed next to the compression arms of the compression frames and peripheral embossed areas along the perimeter of the open pore meshes. The embossed surface provides an improved protection against electro-circuiting

    ELECTROLYTIC CELL WITH BIPOLAR ELECTRODES FOR WASTEWATER TREATMENT
    5.
    发明申请
    ELECTROLYTIC CELL WITH BIPOLAR ELECTRODES FOR WASTEWATER TREATMENT 有权

    公开(公告)号：US20210130199A1

    公开(公告)日：2021-05-06

    申请号：US16982002

    申请日：2019-03-20

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Brendan Wood

    IPC: 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
    6.
    发明申请
    METHOD OF OPERATING A WASTEWATER TREATMENT SYSTEM 审中-公开

    公开(公告)号：US20200148559A1

    公开(公告)日：2020-05-14

    申请号：US16629932

    申请日：2018-07-12

    Applicant: Axine Water Technologies Inc.

    Inventor： Julia Lynne Krasovic

    IPC: C02F1/467 ,  C25B15/02 ,  C25B9/08 ,  C25B11/04 ,  C25B13/08 ,  C25B9/18 ,  C02F1/461 ,  C02F1/00

    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.

    STACK OF ELECTROCHEMICAL CELLS FOR WASTEWATER TREATMENT WITH ISOLATED ELECTRODES
    7.
    发明申请
    STACK OF ELECTROCHEMICAL CELLS FOR WASTEWATER TREATMENT WITH ISOLATED ELECTRODES 审中-公开

    公开(公告)号：US20200010341A1

    公开(公告)日：2020-01-09

    申请号：US16489637

    申请日：2018-02-28

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： David Harvey ,  Brendan Wood ,  Barathram Jayasankar ,  Alexander Bellemare-Davis

    IPC: C02F1/461 ,  C02F1/467

    Abstract: A stack of electrochemical cells for wastewater treatment is disclosed comprising at least one electrochemical cell having a solid polymer membrane, an anode catalyst layer and a cathode catalyst layer adjacent to each side of the membrane, an open pore mesh placed next to each of the catalyst layers and a compression frame placed next to each open pore mesh. A cover is placed between the compression frames of two neighbouring electrochemical cells in the stack thereby forming an enclosure which spans the distance between the two neighbouring electrochemical cells thereby isolating the cathode catalyst layer or the anode catalyst layer from the solution in the reactor tank in which the stack is immersed.

    EFFICIENT TREATMENT OF WASTEWATER USING ELECTROCHEMICAL CELL
    9.
    发明申请
    EFFICIENT TREATMENT OF WASTEWATER USING ELECTROCHEMICAL CELL 审中-公开
    使用电化学细胞的废水的有效处理

    公开(公告)号：US20150298998A1

    公开(公告)日：2015-10-22

    申请号：US14648414

    申请日：2013-12-02

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Colleen Legzdins

    IPC: C02F1/467 ,  C02F1/461

    CPC classification number: C02F1/4672 ,  C02F1/46104 ,  C02F1/46176 ,  C02F2001/46142 ,  C02F2001/46166 ,  C02F2201/46115 ,  C02F2201/46195 ,  C02F2301/08 ,  C02F2305/023 ,  C25B9/18 ,  C25B15/08 ,  Y02E60/366

    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.

    Abstract translation: 公开了一种用于电化学处理包含有机和/或无机污染物的废水的有效方法和系统。 该系统包括至少第一和第二固体聚合物电解质电解质电池组，其中每个电池包括固体聚合物，不使用阴极电解液或其它支持电解质的质子交换膜电解质。 第一和第二堆在结构或运行条件上有所不同。 选择的电池堆设计和操作条件可显着提高运行效率。

    METHOD AND SYSTEM FOR WASTEWATER TREATMENT WITH IN-SITU CLEANING OF ELECTRODES
    10.
    发明公开
    METHOD AND SYSTEM FOR WASTEWATER TREATMENT WITH IN-SITU CLEANING OF ELECTRODES 审中-公开

    公开(公告)号：US20240208844A1

    公开(公告)日：2024-06-27

    申请号：US18555228

    申请日：2022-04-19

    Applicant: AXINE WATER TECHNOLOGIES INC.

    Inventor： Victor Ka Lun LEUNG

    IPC: C02F1/467 ,  C02F1/00 ,  C02F1/461 ,  C02F101/12

    CPC classification number: C02F1/4674 ,  C02F1/008 ,  C02F2001/46119 ,  C02F2101/12 ,  C02F2201/4614 ,  C02F2209/29 ,  C02F2301/046 ,  C02F2303/185

    Abstract: A system for wastewater treatment with in-situ cleaning of electrodes comprises at least one reactor for treating wastewater comprising a chloride salt (sodium, potassium, calcium etc.) with a chloride concentration between 500 mg/L to 5,000 mg/L and a controller for controlling the current supplied to the reactors by controlling the electrode active area and/or the current density such that the total amount of aqueous free chlorine generated during the wastewater treatment requires the addition of an amount of sodium bisulfite determined experimentally to generate a concentration of between 500 mg/L and 5,000 mg/L of hydrochloric acid and a pH of the treated wastewater of less than or equal to 4. The wastewater is recirculated back to the reactors after the addition of sodium bisulfite in the treated wastewater. This secures an in-situ cleaning of the electrodes within the electrochemical reactors, without the need of any additional equipment.

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