公开(公告)号：US20240294410A1

公开(公告)日：2024-09-05

申请号：US18572283

申请日：2022-06-10

Applicant: UNIVERSITEIT GENT ,  UMICORE

Inventor： Pieter OSTERMEYER ,  Korneel RABAEY ,  Tom HENNEBEL

IPC: C02F3/00 ,  C02F3/34 ,  C02F101/10 ,  C02F103/10 ,  C02F103/16

CPC classification number: C02F3/005 ,  C02F3/345 ,  C02F2101/101 ,  C02F2103/10 ,  C02F2103/16 ,  C02F2201/46115 ,  C02F2201/46185 ,  C02F2209/06 ,  C02F2301/043 ,  C02F2301/046

Abstract: Provided is a process for the environmental-friendly treatment of sulfate-containing wastewater. The acidic, sulfate-containing wastewater is treated in a sulfate reducing bioreactor with influent and effluent looped through to the cathode compartment of an electrochemical cell. The electrochemical cell stabilizes the pH in the bioreactor by the in-situ production of base in the cathode compartment. Additionally, hydrogen is produced which is used in the bioreactor as electron donor for the sulfate reduction. The middle compartment of the electrochemical cell contains a sulfide rich aqueous solution in which the extracted cations are displaced by protons from the anode compartment. This results in the acidification of the sulfide rich solution, which is beneficial for the extraction of sulfides as H2S. This H2S can be used for the precipitation of metals in the beginning of the process, forming another loop.

公开(公告)号：US11858833B2

公开(公告)日：2024-01-02

申请号：US17286141

申请日：2018-10-18

Applicant: BLUE SAFETY GMBH

Inventor： Vitold Bakhir

IPC: C25B1/50 ,  C02F1/467 ,  C25B9/19 ,  C25B1/04 ,  C25B1/26 ,  C25B1/30 ,  C25B1/13 ,  C25B15/08 ,  C25B1/46

CPC classification number: C02F1/4674 ,  C25B1/04 ,  C25B1/13 ,  C25B1/26 ,  C25B1/30 ,  C25B1/46 ,  C25B9/19 ,  C25B15/083 ,  C25B15/085 ,  C25B15/087 ,  C02F2201/4618 ,  C02F2201/46115 ,  C02F2201/46155 ,  C02F2201/46185

Abstract: The invention relates to the field of chemical technology and relates in particular to devices for electrolyzing aqueous alkali metal chloride solutions to obtain chlorine, chlorine compounds, oxygen, ozone as well as hydroperoxide compounds and can be used for disinfection in the medical, pharmaceutical and food industries as well as in the purification and sterilization of water by aqueous solutions of hypochlorous and hydroperoxide oxidizing agents.

公开(公告)号：US20230365442A1

公开(公告)日：2023-11-16

申请号：US18143220

申请日：2023-05-04

Applicant: New Jersey Institute of Technology ,  Qingdao University of Technology

Inventor： Wen Zhang ,  Jianan Gao ,  Bo Jiang

IPC: C02F1/467 ,  C02F1/461 ,  C05C3/00

CPC classification number: C02F1/4676 ,  C02F1/46104 ,  C02F1/4672 ,  C05C3/00 ,  C02F2101/163 ,  C02F2201/4611 ,  C02F2201/46115 ,  C02F2201/4616 ,  C02F2201/46185

Abstract: Disclosed is an electrified membrane flow-cell reactor system and method for nitrogen wastewater treatment and upcycling towards ammonia nitrogen without external acid/base consumption. This electrified membrane flow-cell reactor includes a cathodic membrane module having a gas-permeable or gas-exchange membrane and a cathodic catalytic layer, an anode, and a semi-permeable membrane between the cathodic and anodic chamber. Three chambers in the flow-cell reactor include (i) a cathode chamber for nitrate reduction and upcycling towards NH3, (ii) a trap chamber for NH3 capture and storage, and (iii) an anode chamber for H+ production and protonation of gaseous NH3 to NH4+. The cathodic membrane and anode are connected to an electric power source to provide a stable cathodic potential and enable electrode reactions. This method will continuously treat nitrate-containing wastewater and achieve simultaneous electrochemical nitrate reduction from the wastewater and ammonia recovery as ammonium salts in the trap chamber.

公开(公告)号：US20180179089A1

公开(公告)日：2018-06-28

申请号：US15390165

申请日：2016-12-23

Applicant: Michael James Connor, JR. ,  Brian M. McDonald ,  Grant R. Page

Inventor： Michael James Connor, JR. ,  Brian M. McDonald ,  Grant R. Page

IPC: C02F1/46 ,  C02F1/42

CPC classification number: C02F1/4604 ,  C02F1/42 ,  C02F2001/46138 ,  C02F2201/46115 ,  C02F2201/4613 ,  C02F2201/46185

Abstract: The present invention discloses an apparatus and a method to desalinate aqueous solution. The apparatus disclosed herein comprises at least two electrodes and at least one ion selective membrane in continuous contact with the aqueous solution that is contained in the internal space created by connecting a top manifold and a bottom manifold of the apparatus. The ion selective membrane(s) are arranged in such a manner as to enable reversing the flow of the charged particles by direct or indirect means. The electrodes in this apparatus may be made of material that reversibly reacts with chlorides in water.

公开(公告)号：US09666873B2

公开(公告)日：2017-05-30

申请号：US14734652

申请日：2015-06-09

Applicant: Magna Imperio Systems Corp.

Inventor： Grant R. Page

IPC: H01M4/90 ,  H01M8/04 ,  H01M8/08 ,  H01M8/20 ,  C02F1/46 ,  C02F1/28 ,  H01M8/04186 ,  C02F1/469 ,  C02F1/461 ,  H01M8/04746 ,  H01M8/04791 ,  C02F103/08

CPC classification number: H01M4/90 ,  C02F1/283 ,  C02F1/4604 ,  C02F1/46104 ,  C02F1/4693 ,  C02F2001/46138 ,  C02F2103/08 ,  C02F2201/006 ,  C02F2201/007 ,  C02F2201/008 ,  C02F2201/009 ,  C02F2201/46 ,  C02F2201/46115 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2201/46185 ,  C02F2209/005 ,  C02F2209/008 ,  C02F2209/03 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/40 ,  C02F2303/10 ,  H01M4/9041 ,  H01M8/04186 ,  H01M8/04753 ,  H01M8/04798 ,  H01M8/08 ,  H01M8/20 ,  H01M2300/0002 ,  Y02A20/212 ,  Y02E60/528 ,  Y02W10/30 ,  Y02W10/37

Abstract: Apparatuses for generating electrical power and/or treating water desalinating salt water are described, and may include a top manifold comprising one or more inlets, a bottom manifold comprising one or more outlets, a casing connecting the top manifold and the bottom manifold to define an internal space, and at least one electrode set disposed in the internal space. The electrode set may include a silver chloride cathode in fluid communication with a first fluid container including an aqueous solution, such as diluted sodium chloride solution, and a silver anode in fluid communication with a second fluid container including another aqueous solution, e.g., a higher concentration sodium chloride solution. The electrode set also may include a membrane that allows chloride and sodium ions to pass therethrough, and a connector electrically connecting the cathode to the anode to form an electrical circuit.

公开(公告)号：US20160145125A1

公开(公告)日：2016-05-26

申请号：US14544099

申请日：2014-11-24

Applicant: Trovion Singapore PTE. LTD.

Inventor： John M. Riviello

IPC: C02F1/469

CPC classification number: C02F1/4695 ,  C02F2001/46133 ,  C02F2001/46161 ,  C02F2201/46 ,  C02F2201/46135 ,  C02F2201/46145 ,  C02F2201/4615 ,  C02F2201/46185 ,  C02F2209/05

Abstract: The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses are configured to produce purified liquids having an ion content at a level of parts-per-trillion or less, and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Specifically, the present invention relates to an electrodeionization apparatus wherein an initial input port for feed to the apparatus is placed at a location such that feed enters into an anion bed at a location in close proximity to an anion membrane.

Abstract translation: 本发明一般涉及通过使用电去离子法和设备去除液体。 这些装置被配置成产生离子含量在百万分之几以下的纯化液体，并提供离子交换材料的连续再生。 可以根据阴离子，阳离子或两者的去离子的期望水平来配置装置。 具体地，本发明涉及一种电去离子装置，其中用于进料到装置的初始输入端口放置在使得进料在靠近阴离子膜的位置处进入阴离子床的位置。

公开(公告)号：US20160122211A1

公开(公告)日：2016-05-05

申请号：US14896356

申请日：2014-06-05

Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE PAUL SABATIER (TOULOUSE III)

Inventor： Patrice Simon ,  Pierre-Louis Taberna ,  Barbara Daffos ,  Etsuro Iwama ,  Theodore Tzedakis ,  Yury Gogotsi ,  Kelsey Hatzell ,  Oleksiy Gogotsi

IPC: C02F1/461 ,  C02F1/469 ,  C02F1/46

CPC classification number: C02F1/46104 ,  C02F1/4604 ,  C02F1/46109 ,  C02F1/46114 ,  C02F1/4691 ,  C02F2001/46133 ,  C02F2001/46152 ,  C02F2103/08 ,  C02F2201/46115 ,  C02F2201/46185 ,  C02F2305/00

Abstract: An object of the present invention is to provide a cheap and efficient method and device to remove ions from an electrolytic media, such as water desalination.The invention relates to a cell adapted to remove ions from an liquid electrolytic media, comprising a housing with: two inlets and two outlets, a unique porous membrane ionically conducting but electrically insulating, lying between the two inlets and the two outlets to constitute two compartments, each one comprising one of the inlets and one of the outlets, two electrodes, each one in electronic contact with one compartment.

Abstract translation: 本发明的一个目的是提供一种廉价有效的方法和装置，以从电解介质中去除离子，例如水脱盐。 本发明涉及一种适用于从液体电解介质中除去离子的电池，其包括壳体，其具有：两个入口和两个出口，位于两个入口之间离子导电但电绝缘的独特的多孔膜，构成两个隔室 ，每个包括一个入口和一个出口，两个电极，每个电极与一个隔室电子接触。

公开(公告)号：US09162906B2

公开(公告)日：2015-10-20

申请号：US13553625

申请日：2012-07-19

Applicant: Benjamin Stuart Sparrow ,  Joshua Aniket Zoshi ,  James Hing Bong Tang

Inventor： Benjamin Stuart Sparrow ,  Joshua Aniket Zoshi ,  James Hing Bong Tang

IPC: C02F1/469 ,  B01D61/14 ,  B01D61/50 ,  B01D61/54 ,  B01D61/58 ,  C02F1/46 ,  H01M8/22 ,  C02F1/04 ,  C02F103/08 ,  B01D61/02 ,  C02F1/00 ,  C02F1/16 ,  C02F1/24 ,  C02F1/32 ,  C02F1/44 ,  C02F1/52 ,  C02F1/76 ,  C02F1/78

CPC classification number: C02F1/4693 ,  B01D61/025 ,  B01D61/145 ,  B01D61/147 ,  B01D61/50 ,  B01D61/54 ,  B01D61/58 ,  B01D2311/04 ,  B01D2311/2642 ,  B01D2313/36 ,  B01D2313/38 ,  B01D2317/02 ,  C02F1/004 ,  C02F1/04 ,  C02F1/041 ,  C02F1/048 ,  C02F1/16 ,  C02F1/24 ,  C02F1/32 ,  C02F1/441 ,  C02F1/444 ,  C02F1/447 ,  C02F1/4604 ,  C02F1/52 ,  C02F1/76 ,  C02F1/78 ,  C02F2001/007 ,  C02F2103/08 ,  C02F2201/009 ,  C02F2201/46115 ,  C02F2201/4613 ,  C02F2201/46145 ,  C02F2201/46185 ,  C02F2301/046 ,  C02F2301/08 ,  C02F2303/10 ,  H01M8/227 ,  Y02A20/128 ,  Y02A20/131 ,  Y02A20/134 ,  Y02A20/212 ,  Y02E60/50 ,  Y02W10/30 ,  Y02W10/37 ,  B01D2311/2649

Abstract: Described herein are a method and system for desalinating saltwater using concentration difference energy. A “five stream” dialytic stack is described that can be used to desalinate saltwater at a relatively high recovery ratio. The dialytic stack may include, for example, one or more drive cells having a paired concentrate and a diluent-c chamber in ionic communication with a product chamber that is adjacent to an anion and a cation discharge chamber each filled with diluent-p. The drive cell applies a drive voltage across the product chamber, and when the drive voltage exceeds a desalination voltage of the product chamber, the saltwater in the product chamber is desalinated. The dialytic stack may accept brine discharged from a first desalination plant as saltwater to be desalinated. Processing the brine in the dialytic stack may decrease its volume, decreasing costs associated with treating or otherwise disposing of the brine.

Abstract translation: 本文描述了使用浓度差能量使盐水脱盐的方法和系统。 描述了一种“五流”透析堆，可用于以相对高的回收率对盐水进行脱盐。 透析堆可以包括例如一个或多个驱动单元，其具有与阴离子相邻的产物室离子连通的成对浓缩物和稀释剂c室，每个填充有稀释剂p的阳离子放电室。 驱动单元在产品室上施加驱动电压，当驱动电压超过产品室的脱盐电压时，产品室中的盐水脱盐。 透析堆可以接收从第一个脱盐设备排出的盐水作为要脱盐的盐水。 处理透析塔中的盐水会降低其体积，降低与处理或以其他方式处置盐水相关的成本。

公开(公告)号：US20150283511A1

公开(公告)日：2015-10-08

申请号：US14439101

申请日：2013-11-06

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG

Inventor： Siegfried Egner ,  Alexander Karos ,  Eberhard Winkler ,  Hans-Juergen Foerster

IPC: B01D61/42

CPC classification number: B01D61/422 ,  B01D61/44 ,  B01D2311/25 ,  C02F1/4604 ,  C02F1/4693 ,  C02F2001/46133 ,  C02F2001/46157 ,  C02F2201/46115 ,  C02F2201/4617 ,  C02F2201/4618 ,  C02F2201/46185

Abstract: In a method for desalting aqueous solutions by means of electrodialysis in an electrochemical cell (10) comprising a first electrode (16) and a second electrode (20), wherein the second electrode (20) has a polarity opposite to the first electrode and wherein at the first electrode (16) an electrolysis gas and ions are formed, it is proposed that the electrolysis gas and the ions are reacted at the second electrode (20).

Abstract translation: 在包括第一电极（16）和第二电极（20）的电化学电池（10）中通过电渗析对水溶液进行脱盐的方法，其中所述第二电极（20）具有与所述第一电极相反的极性，并且其中 在第一电极（16）处形成电解气体和离子，提出电解气体和离子在第二电极（20）处反应。

公开(公告)号：US20150266753A1

公开(公告)日：2015-09-24

申请号：US14676764

申请日：2015-04-01

Applicant: GLOBAL WATER HOLDINGS, LLC

Inventor： MICHAEL FRAIM ,  DAVID T. SCHWARTZEL

IPC: C02F1/467 ,  C02F1/461

CPC classification number: C02F1/467 ,  C02F1/325 ,  C02F1/36 ,  C02F1/46109 ,  C02F1/46176 ,  C02F1/4674 ,  C02F1/70 ,  C02F2001/46119 ,  C02F2001/46142 ,  C02F2101/103 ,  C02F2103/023 ,  C02F2103/42 ,  C02F2201/3227 ,  C02F2201/4611 ,  C02F2201/46115 ,  C02F2201/4612 ,  C02F2201/4617 ,  C02F2201/4618 ,  C02F2201/46185 ,  C02F2201/4619 ,  Y02W10/37

Abstract: An electrochlorination and electrochemical system for the on-site generation and treatment of municipal water supplies and other reservoirs of water, by using a custom mixed oxidant and mixed reductant generating system for the enhanced destruction of water borne contaminants by creating custom oxidation-reduction-reactant chemistries with real time monitoring. A range of chemical precursors are provided that when acted upon in an electrochemical cell either create an enhanced oxidation, or reduction environment for the destruction or control of contaminants. Chemical agents that can be used to control standard water quality parameters such as total hardness, total alkalinity, pH, total dissolved solids, and the like are introduced via the chemical precursor injection subsystem infrequently or in real time based on sensor inputs and controller set points.

Abstract translation: 一种用于现场生产和处理市政供水和其他水库的电氯化和电化学系统，通过使用定制的混合氧化剂和混合还原剂生成系统，通过创建定制的氧化还原反应物来增强水分污染物的破坏 化学实时监控。 提供了一系列化学前体，当在电化学电池中起作用时，可产生用于破坏或控制污染物的增强的氧化或还原环境。 可用于控制标准水质参数（如总硬度，总碱度，pH，总溶解固体等）的化学试剂通过化学前体注入子系统不频繁或实时地基于传感器输入和控制器设定点 。