公开(公告)号：US11845683B2

公开(公告)日：2023-12-19

申请号：US17515390

申请日：2021-10-29

Applicant: Nanjing Hydraulic Research Institute

Inventor： Xiaojun Wang ,  Jianyun Zhang ,  Feng Chen

IPC: C02F9/00 ,  E03B1/04 ,  C02F1/00 ,  C02F1/28 ,  C02F1/32 ,  C02F3/26 ,  C02F103/00

CPC classification number: C02F9/00 ,  E03B1/041 ,  C02F1/001 ,  C02F1/28 ,  C02F1/325 ,  C02F3/26 ,  C02F2103/001 ,  C02F2103/002 ,  C02F2103/005 ,  C02F2209/02 ,  C02F2303/04 ,  E03B2001/045 ,  E03B2001/047

Abstract: Disclosed are a method and system for vertically utilizing unconventional water source. The system includes a water collection unit, a water treatment unit, and a monitoring, regulation and reuse unit. The water collection unit is configured to collect rainwater and/or domestic wastewater; the water treatment unit is in communication with the water collection unit and configured to purify the rainwater and/or the domestic wastewater collected by the water collection unit; and the monitoring, regulation and reuse unit is in communication with the water treatment unit and configured to use reclaimed water obtained through treatment by the water treatment unit. The method and the system for vertically utilizing unconventional water source in the present disclosure have advantages of a simple structure, low costs, and high treatment efficiency, effectively save energy and water resources, and are suitable for decentralized treatment and recycling of urban domestic wastewater.

公开(公告)号：US11845682B2

公开(公告)日：2023-12-19

申请号：US17370379

申请日：2021-07-08

Applicant: The Regents of the University of California

Inventor： Robert Kostecki ,  Ravi S. Prasher ,  Akanksha K. Menon ,  Andrew Z. Haddad ,  Jeffrey J. Urban

IPC: C02F9/00 ,  B01D61/00 ,  B01D61/04 ,  C02F1/44 ,  B01D61/02 ,  B01D61/58 ,  C02F1/02 ,  C02F1/00 ,  C02F103/10

CPC classification number: C02F9/00 ,  B01D61/005 ,  B01D61/027 ,  B01D61/04 ,  B01D61/58 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/2649 ,  C02F1/001 ,  C02F1/02 ,  C02F1/442 ,  C02F1/445 ,  C02F2103/10 ,  C02F2301/046 ,  C02F2303/16

Abstract: This disclosure provides systems, methods, and apparatus related to water desalination. In one aspect, a method includes generating a diluted draw solution using forward osmosis. Wastewater is on a first side of an osmotic membrane and a draw solution is on a second side of the osmotic membrane. The draw solution comprises a mixture of water and an ionic liquid. Water in the wastewater diffuses across the osmotic membrane to the draw solution to form the diluted draw solution. The diluted draw solution is heated using a photonic heater to a temperature above a lower critical solution temperature (LCST) of the ionic liquid to phase separate the diluted draw solution into the ionic liquid and treated water.

公开(公告)号：US11840745B2

公开(公告)日：2023-12-12

申请号：US17973415

申请日：2022-10-25

Applicant: K-Technologies, Inc.

Inventor： William W. Berry ,  Thomas E. Baroody

IPC: C22B3/00 ,  C01B25/238 ,  C02F1/42 ,  C02F1/52 ,  C22B3/42 ,  C02F1/28 ,  C02F9/00 ,  C02F101/20

CPC classification number: C22B17/04 ,  C01B25/238 ,  C02F1/42 ,  C02F1/52 ,  C22B3/42 ,  C02F1/28 ,  C02F9/00 ,  C02F2101/20

Abstract: In alternative embodiments, provided are methods and processes for the removal of cadmium (Cd) from wet-process phosphoric acid that may contain Cd, including excessive amounts of Cd. The process developed is based on the application of commercially available ion exchange resins with the application of Continuous Ion Exchange (CIX) technology. In alternative embodiments, provided are processes and methods for the recovery and/or the removal of cadmium from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods as provided herein allows for the reduction of cadmium metal contaminants with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizers and phosphoric acid products, such as world-class diammonium phosphate fertilizer (DAP), merchant-grade phosphoric acid, super-phosphoric acid, and other phosphoric acid products.

公开(公告)号：US11840471B1

公开(公告)日：2023-12-12

申请号：US17555794

申请日：2021-12-20

Applicant: Republic Services, Inc.

Inventor： Pavan Puttamraju ,  Kevin D. Torrens ,  Yun Yu

IPC: C02F9/00 ,  C02F1/24 ,  C02F1/56 ,  C02F1/66 ,  C02F1/74 ,  B03D1/016 ,  E21B21/06 ,  C02F1/78 ,  C02F101/36 ,  C02F103/06 ,  C02F103/10 ,  E21B43/40

CPC classification number: C02F9/00 ,  B03D1/016 ,  C02F1/24 ,  C02F1/56 ,  C02F1/66 ,  C02F1/74 ,  E21B21/063 ,  C02F1/78 ,  C02F2101/36 ,  C02F2103/06 ,  C02F2103/10 ,  E21B43/40

Abstract: Disclosed is a method for enhancing the removal of a per- and polyfluoroalkyl substances (PFAS) component from waste water using a cationic polymer (e.g., a cationic polymer flocculant or coagulant). The cationic polymer enables gas that is diffused through the waste water to carry at least a portion of the PFAS component to the surface of water, creating a foam that can then be removed.

公开(公告)号：US11840469B2

公开(公告)日：2023-12-12

申请号：US17049226

申请日：2019-04-24

Applicant: GM INNOVATIONS LIMITED

Inventor： Gerard Melling ,  Alan Suttie ,  Brian Loudon ,  John Elliot

IPC: C02F9/00 ,  B04B1/12 ,  B04B11/02 ,  C02F1/00 ,  C02F1/32 ,  C02F1/38 ,  C02F1/44

CPC classification number: C02F9/00 ,  B04B1/12 ,  B04B11/02 ,  C02F1/008 ,  C02F1/001 ,  C02F1/32 ,  C02F1/385 ,  C02F1/441 ,  C02F2201/005 ,  C02F2209/008 ,  C02F2209/03 ,  C02F2209/40 ,  C02F2303/04

Abstract: The invention provides an apparatus for providing potable water, which apparatus comprises a plurality of components linked in series to provide a flow path through the apparatus, wherein the plurality of components comprises:

(i) an inlet (4) for a stream of contaminated water requiring purification;
(ii) a centrifugal separator (20) for separating the contaminated water stream into a partially purified water stream and a contaminant stream;
(iii) a pre-filter pump (26);
(iv) a pre-filter pressure sensor (30);
(v) a first filter assembly (32) comprising one or more filter modules for removing particles of a predetermined size and/or removing organic contaminants from the partially purified water stream;
(vi) a post-filter pressure sensor (38);
(vii) a post-filter pump (40);
(viii) a second filter assembly comprising one or more reverse osmosis filters (48);
(ix) a UV steriliser unit (52); and
(x) an outlet (6) for purified potable water;
and wherein the apparatus further comprises an electronic controller (14) for controlling and monitoring the operation of the apparatus.

公开(公告)号：US20230391651A1

公开(公告)日：2023-12-07

申请号：US18236636

申请日：2023-08-22

Applicant: Frederick J. Dart ,  John O. Richmond

Inventor： Frederick J. Dart ,  John O. Richmond

IPC: C02F9/00

CPC classification number: C02F9/00 ,  C02F1/481

Abstract: A water purification process for treating water containing at least some organic contaminants, and including the steps of pre-treating the water for capturing organic contaminants from solution in a water stream, by passing the water into a spin up bowl to speed up the water stream, forcing the high speed stream through an annular flow passage located centrally of the spin up bowl passing the high velocity stream between a magnetic member and a magnetic ring, thereafter passing the water stream into an energy recovery bowl, directing the flow from the flow passage onto a zinc anode member; and thereafter passing the water stream along a grounded pipe, thereby causing the development of fine particles of calcium carbonates, and capturing the organic contaminants

公开(公告)号：US11834357B2

公开(公告)日：2023-12-05

申请号：US17229321

申请日：2021-04-13

Applicant: Michael Kelsey ,  Stephen Mann ,  Robert Kelsey ,  Stephen McKenzie

Inventor： Michael Kelsey ,  Stephen Mann ,  Robert Kelsey ,  Stephen McKenzie

IPC: C02F9/00 ,  C02F103/00 ,  C02F1/34 ,  C02F1/00 ,  C02F1/78 ,  C02F103/20 ,  C02F3/28 ,  C02F1/44

CPC classification number: C02F9/00 ,  C02F1/004 ,  C02F1/34 ,  C02F1/441 ,  C02F1/78 ,  C02F3/28 ,  C02F2001/007 ,  C02F2103/005 ,  C02F2103/20 ,  C02F2301/043 ,  C02F2301/046 ,  C02F2301/08 ,  C02F2303/16 ,  C02F2303/22

Abstract: Examples disclosed herein relate to a water treatment system including a first cavitation device coupled to a wastewater source via one or more cavitation device lines, a filter coupled to the first cavitation device via one or more filter lines, an equalizing tank coupled to the filter via one or more equalizing tank lines, a second cavitation device coupled to the equalizing tank via one or more second cavitation device lines where a flow from the equalizing tank which enters the second cavitation device is modified and reenters the equalizing tank, a first booster pump coupled to the equalizing tank via one or more first boost pump lines, a contact tank coupled to the first booster pump via one or more contact tank lines, a carbon filtration device coupled to the contact tank, a biological treatment system coupled to the carbon filtration device via one or more biological treatment system lines, a second booster pump coupled to the biological treatment system via one or more second booster pump lines, a polishing mass media filter coupled to the second booster pump via one or more polishing mass media filter lines, a granular activated carbon system coupled to the polishing mass media filter via one or more granular activated carbon system feeds, an ozonation system coupled to the granular activated carbon system via one or more ozonation system lines, a reaction tank coupled to the ozonation system via one or more reaction tank lines, a third booster pump coupled to the reaction tank via one or more third booster pump lines, a reverse osmosis pump coupled to the third booster pump via one or more reverse osmosis pump lines, a reverse osmosis system coupled to the reverse osmosis pump via one or more reverse osmosis system lines, and a SOW tank coupled to the reverse osmosis system via one or more SOW lines.

公开(公告)号：US20230382768A1

公开(公告)日：2023-11-30

申请号：US18249618

申请日：2021-10-25

Applicant: Cool Separations B.V.

Inventor： Jaap VAN SPRONSEN ,  Mohammed ALJIRJAWI ,  Jordy OTTEN

IPC: C02F1/22 ,  C01D5/16 ,  C01D3/08 ,  C01D3/14 ,  C01D9/16 ,  C02F1/38 ,  C02F9/00

CPC classification number: C02F1/22 ,  C01D5/16 ,  C01D3/08 ,  C01D3/14 ,  C01D9/16 ,  C02F1/385 ,  C02F9/00 ,  C02F2001/5218

Abstract: The invention is in the field of landfill leachate, in particular the invention is directed to a method for purifying landfill leachate comprising water, dissociated ions and organic compounds, wherein the method comprises providing the leachate in a eutectic freeze crystallization (EFC) crystallizer and carrying out eutectic freeze crystallization by reducing the temperature of the leachate to a first eutectic point to obtain a first mixture comprising ice and a first crystalline salt. Further the ice and the first crystalline salt are separated into an ice stream and a crystalline salt stream.

公开(公告)号：US11826483B2

公开(公告)日：2023-11-28

申请号：US15684601

申请日：2017-08-23

Applicant: CROSSTEX INTERNATIONAL, INC.

Inventor： Barry J. Hammarback

IPC: A61L2/16 ,  A61L2/23 ,  A61L2/238 ,  A61C1/00 ,  B01D24/00 ,  B01D27/08 ,  B05B7/00 ,  C02F9/00 ,  C02F1/50 ,  C02F9/20 ,  C02F1/76 ,  C02F103/02 ,  C02F1/42 ,  C02F1/28

CPC classification number: A61L2/16 ,  A61C1/0061 ,  A61C1/0076 ,  A61L2/23 ,  B01D24/008 ,  B01D27/08 ,  B05B7/00 ,  B05B7/0025 ,  C02F9/20 ,  A61L2/238 ,  A61L2202/122 ,  A61L2209/133 ,  B01D24/007 ,  B01D2201/291 ,  B01D2201/4061 ,  C02F1/283 ,  C02F1/42 ,  C02F1/50 ,  C02F1/505 ,  C02F1/766 ,  C02F2103/026 ,  C02F2201/006 ,  C02F2303/04 ,  C02F2307/10

Abstract: A water treatment dispensing apparatus has a container for holding water from a water supply and a water disinfectant cartridge located within the container. A housing attached to the container and connected to the cartridge directs water from the cartridge to a remote location, such as a dental instrument. An air pressure device supplies water under pressure to the container to force water to flow through the cartridge and to the remote location.

公开(公告)号：US11820689B2

公开(公告)日：2023-11-21

申请号：US16641026

申请日：2018-08-20

Applicant: Evoqua Water Technologies LLC

Inventor： Gary C. Ganzi ,  Frederick C. Wilkins

IPC: B01D61/02 ,  B01D61/08 ,  B01D61/54 ,  B01D61/58 ,  C02F1/00 ,  C02F1/44 ,  C02F1/467 ,  C02F1/469 ,  C02F9/00 ,  B01D61/46 ,  C02F1/20 ,  C02F1/66 ,  C02F101/10 ,  C02F101/12 ,  C02F101/16 ,  C02F103/08

CPC classification number: C02F9/00 ,  B01D61/027 ,  B01D61/08 ,  B01D61/46 ,  B01D61/54 ,  B01D61/58 ,  B01D2311/06 ,  B01D2311/08 ,  B01D2311/12 ,  B01D2311/2642 ,  B01D2311/2649 ,  B01D2311/2684 ,  B01D2317/025 ,  B01D2317/08 ,  C02F1/004 ,  C02F1/008 ,  C02F1/20 ,  C02F1/442 ,  C02F1/4674 ,  C02F1/4693 ,  C02F1/66 ,  C02F2001/007 ,  C02F2101/103 ,  C02F2101/106 ,  C02F2101/108 ,  C02F2101/12 ,  C02F2101/163 ,  C02F2103/08 ,  C02F2209/40

Abstract: Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from one of brackish water and saline water and methods of operation of same.