公开(公告)号：US20240343618A1

公开(公告)日：2024-10-17

申请号：US18641776

申请日：2024-04-22

Applicant: AMS Trace Metals, Inc.

Inventor： Vladimir Dozortsev ,  Richard Bacon ,  Jose Antonio Moreno

IPC: C02F1/467 ,  C02F1/461 ,  C02F101/22

CPC classification number: C02F1/4678 ,  C02F2001/46119 ,  C02F2001/46133 ,  C02F2101/22 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2209/05 ,  C02F2209/06

Abstract: This disclosure provides techniques for treatment of aqueous matrices using electrolysis to produce soluble metals. An aqueous matrix of interest is passed through an electrolysis device with at least one consumable electrode, which dissolves under applied current, transferring a desired reagent to the aqueous matrix of interest. In one embodiment, the electrolysis device is used in a water delivery network to passivate hexavalent chromium (Cr6) and/or convert it to trivalent chromium; the electrode can be made of food-grade metal tin, which is electrolyzed to form a stannous reagent, which then reacts with the Cr6. The disclosed techniques provide for Cr6 passivation without requiring the use of concentrated acids or other harmful substances. Long term reagent generation efficiency can be enhanced through the use of cleaning processes which maintain a fresh electrode surface in contact with the aqueous matrix of interest.

公开(公告)号：US20240308885A1

公开(公告)日：2024-09-19

申请号：US18509281

申请日：2023-11-14

Applicant: Evoqua Water Technologies LLC ,  Evoqua Water Technologies Limited

Inventor： Joshua Griffis ,  Simon P Dukes ,  Paul Beddoes ,  Peter G Rogers

IPC: C02F1/461 ,  C02F1/467

CPC classification number: C02F1/46104 ,  C02F1/4674 ,  C02F2001/46171 ,  C02F2201/003 ,  C02F2201/007 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2209/006 ,  C02F2209/008 ,  C02F2209/40 ,  C02F2301/08 ,  C02F2303/04

Abstract: An electrochlorination system comprises a source of feed fluid, a product fluid outlet, and a plurality of electrochemical cells connected fluidically between the source of feed fluid and the product fluid outlet. The system is configured to operate at least one of the plurality of electrochemical cells at one of a first current density or a first flow rate, and to operate another of the plurality of electrochemical cells at a second current density or second flow rate different from the respective first current density or first flow rate.

公开(公告)号：US12054413B2

公开(公告)日：2024-08-06

申请号：US17745109

申请日：2022-05-16

Applicant: BLUE SAFETY GmbH

Inventor： Vitold Bakhir ,  Jan Papenbrock ,  Christian Mönninghoff

IPC: C02F1/24 ,  C02F1/467 ,  C02F9/00 ,  C02F1/00 ,  C02F1/461 ,  C02F103/06

CPC classification number: C02F9/00 ,  C02F1/004 ,  C02F1/24 ,  C02F1/46104 ,  C02F1/4672 ,  C02F2103/06 ,  C02F2201/46115 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2301/08 ,  C02F2303/04

Abstract: The invention relates to a method and a system for purification of water in a water purification system. The water purification system comprises first and second mixing reactors, first and second flotation reactors and first and second filters all serially and fluidly connected in a flow direction of the water as well as an electrolyzer. During the process, electrochemical synthesis of the reagents takes place in the cathode and anode chambers of the electrolyzer, respectively. Moreover, the electrochemically synthesized catholyte and anolyte are dosed into the water kept in the first and second mixing reactors, respectively. Then the mixtures in the first and second mixing reactors are mixed. After that, the flow of the treated water leaving the mixing reactors is passed through the first and second flotation reactors and afterwards through the first and second filters downstream of the first and second mixing reactors.

公开(公告)号：US11981587B2

公开(公告)日：2024-05-14

申请号：US16777620

申请日：2020-01-30

Applicant: Michael Schelch ,  Wolfgang Staber

Inventor： Michael Schelch ,  Wolfgang Staber

IPC: C02F1/46 ,  A61F7/00 ,  C02F1/461 ,  C02F1/467

CPC classification number: C02F1/4672 ,  A61F7/00 ,  C02F1/46109 ,  A61F2007/0056 ,  C02F2001/46147 ,  C02F2201/46125 ,  C02F2201/46145 ,  C02F2201/4617 ,  C02F2303/04

Abstract: A disinfection device for performing disinfection cycles of water from at least one water circuit of an apparatus, in particular a heating/cooling device. The disinfection device includes at least one disinfection circuit for passing through the water from the water circuit having at least one electrolysis cell designed as a flow-through cell for the in situ generation of oxidizing agents. The water circuit is connected to the disinfection circuit to form a common circuit. Electronics control the disinfection cycles. Power is supplied to the components of the provided disinfection circuits.

公开(公告)号：US11795074B2

公开(公告)日：2023-10-24

申请号：US16491728

申请日：2018-03-06

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： George Y. Gu ,  Simon Paul Dukes ,  Joshua Griffis ,  Michael J. Shaw

IPC: C02F1/46 ,  C02F1/467 ,  C02F1/461 ,  C25B9/23 ,  C02F103/08 ,  C25B1/26 ,  C25B15/02 ,  C25B15/031 ,  C25B9/17 ,  C25B15/029 ,  C25B1/30 ,  C25B1/04

CPC classification number: C02F1/4674 ,  C02F1/46104 ,  C02F2103/08 ,  C02F2201/4613 ,  C02F2201/4614 ,  C02F2201/46115 ,  C02F2201/46135 ,  C02F2201/46145 ,  C02F2201/46175 ,  C02F2209/04 ,  C02F2209/06 ,  C02F2209/23 ,  C02F2209/30 ,  C02F2209/40 ,  C02F2303/04 ,  C25B1/04 ,  C25B1/26 ,  C25B1/30 ,  C25B9/17 ,  C25B9/23 ,  C25B15/02 ,  C25B15/029 ,  C25B15/031

Abstract: An electrochemical cell including a first chamber having an anode, a second chamber having a cathode, at least one ionic connection between the first chamber and the second chamber, such that liquid electrolyte from the first chamber is prevented from mixing with liquid electrolyte in the second chamber is provided. The first chamber and the second chamber can be arranged in parallel and positioned remotely from each other. An electrochemical system including the electrochemical cell, and first and second sources of saline aqueous solutions is also provided. Water treatment systems are also provided. A method of operating an electrochemical cell including introducing first and second saline aqueous solutions into first and second chambers of the electrochemical cell, and applying a current across the anode and the cathode to generate first and second products, respectively is also provided. A method of facilitating operation of an electrochemical cell is also provided.

公开(公告)号：US11713260B2

公开(公告)日：2023-08-01

申请号：US17270437

申请日：2019-08-09

Applicant: NIHON TRIM CO., LTD.

Inventor： Daiji Amenomori ,  Yoshinobu Koizumi ,  Yuhei Yamauchi

IPC: C02F1/461 ,  C25B15/023 ,  C25B9/19 ,  C25B9/65 ,  C25B1/04 ,  C25B13/00

CPC classification number: C02F1/4618 ,  C02F1/46104 ,  C25B1/04 ,  C25B9/19 ,  C25B9/65 ,  C25B13/00 ,  C25B15/023 ,  C02F2201/4612 ,  C02F2201/4613 ,  C02F2201/4614 ,  C02F2201/46115 ,  C02F2201/46145

Abstract: An electrolyzed water generating device 1 has an electrolysis chamber 40, a first feeding body 41 and a second feeding body 41 to which a DC voltage is applied, a diaphragm 43 disposed between the first feeding body 41 and the second feeding body 42 to divide the electrolysis chamber 40 into a first-polar chamber 40a and a second-polar chamber 40b, a control unit 5 for switching a polarity of the first feeding body 41 to an anode or a cathode and a polarity of the second feeding body 42 to a cathode or an anode, a flow rate sensor 22 detecting an amount of flowing water into the electrolysis chamber 40 on the cathode side per unit time, and a current detecting means 44 detecting a DC current supplied to the first feeding body 41 and the second feeding body 42. The surfaces of the first feeding body 41 and the second feeding body 42 are formed of a hydrogen storage metal. The control unit 5 calculates a concentration of hydrogen storage metal colloid based on the DC current and an integrated value of the amount of flowing water after switching the polarities.

公开(公告)号：US10077907B2

公开(公告)日：2018-09-18

申请号：US14779621

申请日：2014-03-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Johannes Hotze Bernhard De Vries ,  Ytsen Wielstra ,  Bernardo Arnoldus Mulder ,  Nienke Cornelie De Vries-Arentsen

IPC: F24D19/00 ,  F24H9/00 ,  C02F1/46

CPC classification number: F24D19/0092 ,  C02F1/4602 ,  C02F2201/4613 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2201/46155 ,  C02F2209/05 ,  C02F2209/055 ,  C02F2307/10 ,  F24H9/0047

Abstract: A method for heating a liquid in a heater having a heating element and a counter electrode includes the acts of (i) heating the liquid in the heater by heating the heating element to a temperature in the range of 120-250° C., and (ii) applying an AC potential difference between the heating element and the counter electrode. The AC potential difference varies with an AC frequency in the range of 200-2500 Hz and has an amplitude in the range of 1-5 V, and the liquid flows in the heater between the heating element and the counter electrode.

公开(公告)号：US20180170775A1

公开(公告)日：2018-06-21

申请号：US15578563

申请日：2016-06-14

Applicant: Saltworks Technologies Inc.

Inventor： Xiangchun YIN ,  Benjamin SPARROW

IPC: C02F1/469 ,  C02F1/76 ,  C02F1/66 ,  C02F1/467 ,  B01D61/50

CPC classification number: C02F1/4693 ,  B01D61/44 ,  B01D61/46 ,  B01D61/50 ,  B01D2311/12 ,  B01D2311/2634 ,  B01D2311/2684 ,  C02F1/04 ,  C02F1/441 ,  C02F1/442 ,  C02F1/445 ,  C02F1/447 ,  C02F1/461 ,  C02F1/4674 ,  C02F1/66 ,  C02F1/76 ,  C02F2001/5218 ,  C02F2101/16 ,  C02F2103/10 ,  C02F2103/26 ,  C02F2201/46115 ,  C02F2201/4613 ,  C02F2201/46145 ,  C02F2201/4617 ,  C02F2201/4618 ,  C02F2209/003 ,  C02F2209/006 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/14 ,  C02F2209/29 ,  C02F2209/40

Abstract: Methods, systems, and techniques for removing ammonium from ammonia-containing water involve using a stack that has alternating product chambers and concentrate chambers for receiving ammonia-containing water and an acidic solution, respectively, with the chambers being bounded by alternating cation exchange membranes and proton permselective cation exchange membranes. Ammonium moves from the product chambers to the concentrate chambers across the CEMs and protons move from the concentrate chambers to the product chambers across the pCEMs when the stack is in use. An electrolyzer may also be used to convert the ammonium in the concentrate chambers into nitrogen.

公开(公告)号：US20170253502A1

公开(公告)日：2017-09-07

申请号：US15518212

申请日：2015-10-09

Applicant: XOGEN TECHNOLOGIES INC.

Inventor： Dorin BEJAN ,  Craig GAGNON

IPC: C02F1/467 ,  C02F1/00

CPC classification number: C02F1/4674 ,  C02F1/008 ,  C02F2101/16 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/005 ,  C02F2209/14 ,  C02F2209/29 ,  C02F2209/40

Abstract: The present disclosure relates generally to oxidation of ammonia using electrochemistry. Methods and systems may include at least one sensor to measure the concentration of ammonia in the effluent and/or the concentration of chlorine gas in the effluent. Methods and systems may also include at least one controller in communication with the sensor and/or the anode to reduce the current density of the anode generating the chlorine, and/or to change the flow rate of the ammonia containing water entering the reactor.

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.