公开(公告)号：US12084363B2

公开(公告)日：2024-09-10

申请号：US18169102

申请日：2023-02-14

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Lars Nupnau

IPC: C02F1/467 ,  B63J4/00 ,  C02F1/00 ,  C02F1/28 ,  C02F1/32 ,  C02F1/70 ,  C02F103/00 ,  C02F103/02

CPC classification number: C02F1/4674 ,  B63J4/002 ,  C02F1/001 ,  C02F1/283 ,  C02F1/32 ,  C02F1/705 ,  C02F2103/008 ,  C02F2103/023 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2201/4617 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/04 ,  C02F2303/04 ,  C02F2303/185 ,  C02F2303/20

Abstract: Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided. The systems utilize, inter alia, oxidation reduction potential control to regulate the dechlorination of an electrocatalytically generated biocidal agent to allowable discharge levels in ship buoyancy systems and ship cooling water systems.

公开(公告)号：US11986838B2

公开(公告)日：2024-05-21

申请号：US17521326

申请日：2021-11-08

Applicant: Tygrus, LLC

Inventor： Lawrence Carlson

IPC: B03C1/30 ,  C02F1/00 ,  C02F1/467 ,  C02F1/48 ,  C02F1/66 ,  C02F101/10 ,  C02F101/20 ,  C02F101/34 ,  C02F101/36 ,  C02F103/00 ,  C02F103/10

CPC classification number: B03C1/30 ,  C02F1/467 ,  C02F1/4672 ,  C02F1/48 ,  C02F1/001 ,  C02F1/66 ,  C02F2101/101 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2101/34 ,  C02F2101/36 ,  C02F2103/001 ,  C02F2103/10 ,  C02F2201/4613 ,  C02F2201/46135 ,  C02F2201/46175 ,  C02F2201/48

Abstract: An apparatus for treating a stream of contaminated water having an elevated concentration of at least one of light metals, heavy metals, sulfates that includes at least one process fluid inlet communicating with a process conduit; at least one electrode reaction vessel in fluid communication with the process conduit, the reaction vessel having an interior chamber and at least one electrode positioned in the reaction chamber, the electrode powered by a alternating current source; and at least one magnetic field reaction vessel in fluid communication with the process conduit, the magnetic field reaction vessel having an outwardly oriented surface and an opposed inwardly oriented surface, the magnetic field reaction vessel having at least one magnet in contact with the inwardly oriented surface of the magnetic field reaction vessel.

公开(公告)号：US20240140834A1

公开(公告)日：2024-05-02

申请号：US18381729

申请日：2023-10-19

Applicant: CEBIEN CO., LTD.

Inventor： IN SHIK RYU ,  BYEONG SEOL GO ,  BAE DONG JHIN

IPC: C02F1/461 ,  C02F1/467

CPC classification number: C02F1/4618 ,  C02F1/4674 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2307/06

Abstract: A dual faucet with a sterile water and general water supply function includes a faucet body including a body portion, a sterile water outlet faucet connected to the body portion and through which sterile water comes, and a regular water outlet faucet connected to the body portion near the sterile water outlet faucet and through which raw water supplied from a raw water pipe line comes, and a sterile water supply unit including a casing, and an electrolytic bath module disposed in the casing and configured to produce sterile water by electrolysis of the raw water supplied from the raw water pipe line and supply the produced sterile water to the sterile water outlet faucet, wherein the operation of the electrolytic bath module is controlled to adjust an ion concentration of the sterile water according to a measured internal voltage value or a measured internal current value.

公开(公告)号：US11926541B2

公开(公告)日：2024-03-12

申请号：US15573260

申请日：2016-05-05

Applicant: G WATER LLC

Inventor： Dean D. Weston ,  Paul D. Manos

IPC: C02F1/461 ,  C02F1/02 ,  C02F1/44 ,  C02F1/00

CPC classification number: C02F1/4618 ,  C02F1/02 ,  C02F1/44 ,  C02F1/001 ,  C02F2001/46185 ,  C02F2001/4619 ,  C02F2201/46135 ,  C02F2201/46145 ,  C02F2201/46155 ,  C02F2209/04 ,  C02F2209/055 ,  C02F2209/06 ,  C02F2209/07 ,  C02F2209/10 ,  C02F2303/04

Abstract: A process of making an alkaline water and acidic water wherein the step of dissolving the alkaline salt in the initial stream is further defined as adding the alkaline salt of a lower alkyl carboxylic acid of sodium propionate to the initial stream. The step of electrolyzing the feed stream further includes a step of applying an electric potential between the cathode and the anode. The step of applying the electrical potential is further defined as applying the electrical potential of between 0.5V and 50 V between the cathode and the anode. The alkaline water composition produced by the process includes zero hydroxide ions and defines a total alkalinity between 40 ppm and 510 ppm. The alkaline water also has a TDS between 58 ppm and 1000 ppm, a pH between 10.0 and 12.0, a hardness rating between 3.5 and 10, and a Langelier Index between 0.37 and 2.20.

公开(公告)号：US20230373835A1

公开(公告)日：2023-11-23

申请号：US18155575

申请日：2023-01-17

Applicant: EKO HARDEN TECHNOLOGIES OY

Inventor： Erkki Lindberg

IPC: C02F11/00 ,  C02F1/66 ,  C10G15/08 ,  C02F1/467 ,  B09C1/00 ,  C02F1/00 ,  C02F1/469 ,  C02F101/36 ,  C02F1/461 ,  C02F101/34 ,  C02F103/36 ,  C02F101/32 ,  C02F103/00 ,  C02F103/06 ,  C02F101/30 ,  C02F1/42 ,  C02F103/10

CPC classification number: C02F11/006 ,  C02F1/66 ,  C10G15/08 ,  C02F1/4672 ,  B09C1/002 ,  B09C1/00 ,  C02F1/008 ,  C02F1/4698 ,  C02F2101/363 ,  C02F2001/46138 ,  C02F2101/345 ,  C02F2103/365 ,  C02F2101/32 ,  C02F2201/4614 ,  C02F2103/007 ,  C02F2103/06 ,  C02F2201/46175 ,  C02F2305/023 ,  C02F2101/305 ,  C02F1/42 ,  C02F2201/4613 ,  C02F2103/10 ,  C02F2101/327 ,  C02F2101/366 ,  C02F2201/46135 ,  C02F2201/4615

Abstract: A method and apparatus break down organic materials, typically contaminants, through oxidation. The method for the treatment of a volume of material, provides: a) introducing at least two electrodes into a location, the location containing the volume of material and the volume of material containing one or more species for treatment; b) providing connections between a voltage source and the at least two electrodes; c) applying a voltage of a first polarity to the connections for a first period of time, under the control of a voltage controller; d) applying a voltage of a second, reversed, polarity to the connections for a second period of time, under the control of the voltage controller; e) repeating steps c) and d) a plurality of times; preferably with steps c), d) and e) promoting oxidation of one or more of the one or more species for treatment.

公开(公告)号：US20230183106A1

公开(公告)日：2023-06-15

申请号：US17924730

申请日：2021-04-23

Applicant: MICROHEAT TECHNOLOGIES PTY LTD

Inventor： Cedric Israelsohn ,  Brett William Hernadi ,  Ian William Taig

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

CPC classification number: C02F1/4672 ,  C02F1/46109 ,  C02F1/008 ,  C02F2209/05 ,  C02F2201/46135 ,  C02F2303/04 ,  C02F2201/4614 ,  C02F2201/46145 ,  C02F2001/46147 ,  C02F2001/46138 ,  C02F2305/023

Abstract: A method for electrochemical disinfection of an aqueous solution, the method comprising the steps of: providing one or more disinfecting cells for retaining an aqueous solution, each disinfecting cell including one or more electrode pairs positioned therein; arranging the one or more disinfecting cells along a flow path, the flow path including an inlet to and an outlet from the one or more disinfecting cells; determining at the one or more disinfecting cells the electrical conductivity, or specific conductance of the aqueous solution; determining from the electrical conductivity, or specific conductance of the aqueous solution a voltage to apply across the one or more electrode pairs at a current sufficient to produce disinfection species therein; and passing the current from the one or more electrode pairs to the aqueous solution to produce a modified aqueous solution.

公开(公告)号：US11655171B2

公开(公告)日：2023-05-23

申请号：US16443026

申请日：2019-06-17

Applicant: PROTERRGO INC.

Inventor： Nicole Alice Poirier ,  Valérie Leveillé

IPC: C02F9/00 ,  C02F1/463 ,  C02F1/465 ,  C02F1/467 ,  C02F1/76 ,  C02F1/461 ,  C02F103/00 ,  C02F103/08 ,  C02F1/32

CPC classification number: C02F9/00 ,  C02F1/463 ,  C02F1/465 ,  C02F1/4674 ,  C02F1/76 ,  C02F1/32 ,  C02F2001/46138 ,  C02F2103/002 ,  C02F2103/005 ,  C02F2103/008 ,  C02F2103/08 ,  C02F2201/4614 ,  C02F2201/46135 ,  C02F2201/46175 ,  C02F2209/02 ,  C02F2209/04 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/11 ,  C02F2209/245 ,  C02F2209/29 ,  C02F2209/40

Abstract: The wastewater treatment apparatus of present invention has an electro-coagulation unit for removing contaminants with at least one anode and at least one cathode and an electro-oxidation unit for oxidizing contaminants with at least one anode and at least one cathode wherein oxidants are electrochemically generated. Based on the type of wastewater, the apparatus can have an electro-flotation unit between the electrocoagulation unit and the electro-oxidation unit. The apparatus also has an oxidant removal unit which can have a metal ion-liberating electrode for reacting with and removing residual oxidants. In some cases, portions of effluent from the oxidant removal unit can be recirculated to the electro-coagulation unit for increased efficiency.

公开(公告)号：US20190233314A1

公开(公告)日：2019-08-01

申请号：US16336335

申请日：2017-10-05

Applicant: VWS (UK) LTD.

Inventor： Ignazio DENTICI ,  Michael BALL ,  Nigel EMERY

IPC: C02F9/00 ,  C02F1/20 ,  C02F1/32 ,  C02F1/44 ,  C02F1/469

CPC classification number: C02F9/00 ,  C02F1/20 ,  C02F1/32 ,  C02F1/441 ,  C02F1/4691 ,  C02F1/4695 ,  C02F2103/04 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/005

Abstract: A method of providing ultrapure water from feed water containing hardness forming ions, comprising at least the steps of passing the feed water successively through: (i) providing a feed water stream containing hardness forming ions: (ii) passing the feed water stream through a reverse osmosis (RO) unit to remove at least some ionic contamination to provide a RO permeate water stream: (iii) passing the RO permeate water stream though a capacitive de-ionisation (CDI) unit to remove at least some of the ions to provide a post-CDI stream: and (iv) passing the post-CDI stream through an electrodeionisation (EDI) unit to remove at least some of the ions and carbon dioxide and to provide an ultrapure water stream for dispense or storage. In this way, the capacitive deionisation provides a wholly or substantially continuous process for removing a proportion of unwanted ions, especially the hardness forming ions, from the feed water prior to the use of electrodeionisation.

公开(公告)号：US20190127727A1

公开(公告)日：2019-05-02

申请号：US15868260

申请日：2018-01-11

Applicant: National Chi Nan University

Inventor： Yung-Pin Tsai ,  Meng-Shan Lu ,  Chih-Chi Yang ,  Hao Shiu ,  Jan-Wei Lin

IPC: C12N13/00 ,  C08G63/89 ,  C02F11/12

CPC classification number: C12N13/00 ,  C02F1/26 ,  C02F11/006 ,  C02F11/12 ,  C02F2103/003 ,  C02F2103/20 ,  C02F2103/30 ,  C02F2201/46135 ,  C02F2201/46175 ,  C02F2209/02 ,  C02F2209/06 ,  C02F2209/44 ,  C08G63/89 ,  C12N1/06

Abstract: The present invention provides a method for extracting polyhydroxyalkanoates (PHAs), which comprises a pre-process step and an extraction step: removing water from waste sludge containing microorganisms in the pre-process step so that the waste sludge containing microorganisms has a water content of less than 40%; and applying a high-voltage pulsed electric field to the waste sludge during the extraction step to destroy the microorganisms and release the PHAs, wherein the high-voltage pulsed electric field is between 50 volts and 400 volts, an application time of the high-voltage pulsed electric field is between 5 seconds and 90 seconds, and an application frequency of the high-voltage pulsed electric field is between 500 Hz and 1000 Hz, thereby extracting the PHAs in the case of few chemicals.

公开(公告)号：US20180326356A1

公开(公告)日：2018-11-15

申请号：US15777455

申请日：2016-11-10

Applicant: COWAY CO., LTD.

Inventor： Sung-Min MOON ,  Jun-Young LEE ,  Guk-Won LEE ,  Sang-Hyeon KANG

IPC: B01D61/54 ,  B01D61/44 ,  B01D61/48 ,  C02F1/469 ,  C02F1/461

CPC classification number: B01D61/54 ,  B01D61/445 ,  B01D61/48 ,  C02F1/46104 ,  C02F1/4695 ,  C02F2001/46128 ,  C02F2001/46152 ,  C02F2201/46135 ,  C02F2209/06 ,  C02F2303/22

Abstract: A deionization filter device includes a first electrode, a second electrode, at least one bipolar ion exchange sheet configured to include a cation exchange film and an anion exchange film, and disposed between the first electrode and the second electrode, a voltage source configured to apply a deionization voltage or a reproduction voltage between the first electrode and the second electrode, a pH sensor configured to detect a pH value of a solution to be treated by a voltage applied by the voltage source, and a controller configured to control the voltage source, depending on a pH value of the solution.