公开(公告)号：US20240342701A1

公开(公告)日：2024-10-17

申请号：US18294958

申请日：2022-07-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoki TSUCHIDA ,  Hiroki MURASE ,  Yui MATSUMOTO ,  Hiroki ISHIKAWA ,  Ayaka NAGATA ,  Minato KATO ,  Yuko MARUO ,  Masahiko SHIOI

IPC: B01J49/85 ,  B01J39/07 ,  B01J41/07 ,  B01J47/028 ,  C02F1/42 ,  C25B15/08

CPC classification number: B01J49/85 ,  B01J39/07 ,  B01J41/07 ,  B01J47/028 ,  C02F1/42 ,  C25B15/081 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2201/002 ,  C02F2201/4618 ,  C02F2303/16

Abstract: Water softening device includes water softening tank, neutralization tank, and electrolytic tank. Electrolytic tank generates acidic electrolytic water for regenerating weakly acidic cation exchange resin and alkaline electrolytic water for regenerating weakly basic anion exchange resin. Then, water softening device includes an acidic electrolytic water circulation flow path that circulates the acidic electrolytic water through electrolytic tank, first discharge port, water softening tank, and first water intake port in the stated order, and an alkaline electrolytic water circulation flow path that circulates the alkaline electrolytic water through electrolytic tank, second discharge port, neutralization tank, and second water intake port in the stated order.

公开(公告)号：US12084370B2

公开(公告)日：2024-09-10

申请号：US17428966

申请日：2020-02-05

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： Klaus Lackner

IPC: C02F9/00 ,  C02F1/42 ,  C02F1/44 ,  C02F5/02

CPC classification number: C02F9/00 ,  C02F1/42 ,  C02F5/02 ,  C02F2001/422 ,  C02F2001/425 ,  C02F1/441 ,  C02F2209/06

Abstract: A system for water rejuvenation for the regeneration of sorbent filters is disclosed. The system includes an anion reduction subsystem having a plurality of anionic exchange resin beds configured to remove impurity anions from a wash water used in a moisture-swing, direct-air-capture device. Each resin beds is in a vessel inside of which is configured to perform at least one of three operations: (1) conditioning resin beds by flushing them with carbonate or bicarbonate, (2) upgrading the wash water by removing impurity anions from the wash water reservoir, and (3) cleaning input water by exchanging impurity anions for carbonate or bicarbonate ions in the input feed. Each vessel cycles through these operations in the order (1), (2), (3). The system also includes a cation reduction subsystem that reduces the salinity of the wash water, and a divalent reduction subsystem that softens the wash water by removing divalent ions.

公开(公告)号：US12018604B2

公开(公告)日：2024-06-25

申请号：US17914994

申请日：2021-03-31

Applicant: RHAPIS S.R.L

Inventor： Giulio Rossi

IPC: F01N3/00 ,  B01D45/14 ,  B01D47/06 ,  B01D53/02 ,  B01D53/26 ,  B60H1/00 ,  C02F1/00 ,  C02F1/28 ,  C02F1/42 ,  C02F103/18 ,  F01N3/02 ,  F01N3/037 ,  F01N3/04 ,  F01N3/20

CPC classification number: F01N3/005 ,  B01D45/14 ,  B01D47/06 ,  B01D53/02 ,  B01D53/265 ,  B60H1/00478 ,  C02F1/283 ,  C02F1/42 ,  F01N3/0205 ,  F01N3/037 ,  F01N3/043 ,  F01N3/2066 ,  B01D2253/102 ,  B01D2259/4566 ,  C02F2001/007 ,  C02F2001/425 ,  C02F2103/18 ,  F01N3/02 ,  F01N2610/1406 ,  F01N2610/1426

Abstract: System (1) for the purification of exhaust gases (S) of an endothermic engine (100), comprising at least one duct (2) for exhausting the gases produced by said endothermic engine, means (3) for cooling said exhaust gases which cross said duct (2) so that to cause, at least in part, the condensation of the water vapor contained in said exhaust gases in water (AC), and means (4) for separating the condensed water (AC), which is condensed by said cooling means along the exhaust duct, from the exhaust gases and for deviating it along a secondary duct (10), said system being characterized by further comprising filtering means (5), which are arranged downstream of said separating means (4) along said secondary duct (10), for filtering said condensed and separated water (AC).

公开(公告)号：US20240189807A1

公开(公告)日：2024-06-13

申请号：US18507580

申请日：2023-11-13

Applicant: Evoqua Water Technologies LLC

Inventor： Gregory Bachman ,  Marty Wilkes

IPC: B01J49/60 ,  B01J47/14 ,  B01J49/53 ,  C02F1/42

CPC classification number: B01J49/60 ,  B01J47/14 ,  B01J49/53 ,  C02F1/42 ,  C02F2001/425

Abstract: Methods of stabilizing virgin ion exchange resin material are provided. The methods include cleansing the virgin ion exchange resin material with a preparation comprising a non-ionic detergent. The methods include cleansing the virgin ion exchange resin material with a preparation comprising an alcohol solvent. The methods include rinsing virgin ion exchange resin material with deoxygenated water, the methods include introducing the cleansed/rinsed virgin ion exchange resin material into a gas impermeable vessel and hermetically sealing the vessel. The methods include introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing a cleansed virgin ion exchange resin material in deoxygenated water is also disclosed.

公开(公告)号：US11986582B2

公开(公告)日：2024-05-21

申请号：US17511348

申请日：2021-10-26

Applicant: NxStage Medical, Inc.

Inventor： Goetz Friederichs ,  William K. Weigel ,  Dennis M. Treu ,  Jeffrey H. Burbank ,  James M. Brugger ,  Keith David J. Wheeler ,  Scott W. Newell

IPC: A61M1/16 ,  A61K31/191 ,  A61M1/14 ,  A61M1/36 ,  B01F21/20 ,  C02F9/00 ,  F15B1/04 ,  C02F1/20 ,  C02F1/28 ,  C02F1/42 ,  C02F1/44 ,  C02F103/02 ,  C02F103/04

CPC classification number: A61M1/1666 ,  A61K31/191 ,  A61M1/1524 ,  A61M1/154 ,  A61M1/155 ,  A61M1/1561 ,  A61M1/1562 ,  A61M1/1565 ,  A61M1/1658 ,  A61M1/166 ,  A61M1/362227 ,  A61M1/36224 ,  A61M1/36225 ,  A61M1/362261 ,  A61M1/362262 ,  A61M1/362265 ,  B01F21/20 ,  C02F9/00 ,  F15B1/04 ,  A61M1/1563 ,  A61M1/362263 ,  A61M2205/3317 ,  A61M2205/3368 ,  A61M2205/502 ,  A61M2205/6054 ,  A61M2205/6072 ,  C02F1/20 ,  C02F1/283 ,  C02F1/42 ,  C02F2001/425 ,  C02F2001/427 ,  C02F1/44 ,  C02F2103/026 ,  C02F2103/04 ,  C02F2209/05 ,  C02F2209/445 ,  F15B2201/315 ,  Y02A50/30

Abstract: A medicament preparation system includes a water purification module and a medicament proportioning module that is interoperable with a replaceable fluid circuit. The fluid circuit includes a purified water inlet, a product medicament outlet, and a plurality of pumping tube segments. At least a first concentrate container is connected by at least a portion of the fluid circuit to the product medicament output and a first concentration measurement sensor station is positioned in a flow path. A controller is programmed to calculate iteratively a concentration of a first concentrate from the first concentrate container and the purified water from a signal generated by the first concentration measurement sensor station and to regulate one or both of a first pumping actuator engaged with the first pumping tube segment and a second pumping actuator engaged with the second pumping tube segment, responsively to the concentration of the first concentrate and water.

公开(公告)号：US20240158267A1

公开(公告)日：2024-05-16

申请号：US18284353

申请日：2022-02-04

Applicant: ORGANO CORPORATION

Inventor： Kyohei TSUTANO ,  Fumitaka ICHIHARA ,  Fumio SUDO

IPC: C02F1/42 ,  C02F1/44 ,  C02F9/00 ,  C02F103/04

CPC classification number: C02F1/42 ,  C02F1/444 ,  C02F9/00 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2103/04

Abstract: An ultrapure water production system capable of producing ultrapure water from which fine particles have been highly removed and supplying the ultrapure water to a point of use is equipped with at least an ultrafiltration membrane device, and includes: a first organic porous ion exchanger provided at a position downstream of the ultrafiltration membrane device in an ultrapure water supply line for supplying the ultrapure water to the point of use; and a microfiltration membrane device provided, in the ultrapure water supply line, at a position downstream of the first organic porous ion exchanger.

公开(公告)号：US20240140845A1

公开(公告)日：2024-05-02

申请号：US18279690

申请日：2022-03-04

Applicant: ENVIT , ENVIRONMENTAL TECHNOLOGIES ENGINEERING LTD.

Inventor： Domen Lestan ,  Simon Gluhar

IPC: C02F9/00 ,  B09B3/70 ,  B09C1/02 ,  B09C1/08 ,  B09B101/30 ,  B09B101/90 ,  C02F1/28 ,  C02F1/42 ,  C02F1/66 ,  C02F1/68 ,  C02F1/70 ,  C02F11/00 ,  C02F101/10 ,  C02F101/20 ,  C02F101/22

CPC classification number: C02F9/00 ,  B09B3/70 ,  B09C1/02 ,  B09C1/08 ,  B09B2101/30 ,  B09B2101/90 ,  C02F1/286 ,  C02F2001/425 ,  C02F1/66 ,  C02F1/683 ,  C02F1/705 ,  C02F11/004 ,  C02F2101/103 ,  C02F2101/206 ,  C02F2101/22 ,  C02F2303/18

Abstract: The present invention relates to a batch process for washing of soil, sediment, sludge and other Fe containing substrates to remove toxic metalloids, notably As and Sb, and toxic metals, notably Pb, Zn, Cd, Cu, Ni, Hg, Mo, Mn, Tl, Cr, Cs, Sr, Th and U. The present invention aids in treatment of waste washing and rinsing solutions generated from washing the substrate contaminated with toxic metalloids and with toxic metals. The invention furthermore aids in reclamation of washing and rinsing solutions, reagents and other materials, and in activation of recycled chelator for more efficient removal of toxic metals from substrate.

公开(公告)号：US11884568B2

公开(公告)日：2024-01-30

申请号：US17260470

申请日：2019-08-13

Applicant: CORN PRODUCTS DEVELOPMENT, INC.

Inventor： Carlos Eduardo Hurtado Gonzalez

IPC: C02F9/02 ,  C02F9/00 ,  C01D5/16 ,  C02F1/00 ,  C02F1/28 ,  C02F1/32 ,  C02F1/42 ,  C02F1/44 ,  C02F3/12 ,  C02F101/10 ,  C02F103/32

CPC classification number: C02F9/00 ,  C01D5/16 ,  C02F1/004 ,  C02F1/283 ,  C02F1/32 ,  C02F1/42 ,  C02F1/441 ,  C02F1/442 ,  C02F3/1268 ,  C02F2001/425 ,  C02F2101/101 ,  C02F2103/32 ,  C02F2209/08 ,  C02F2301/066 ,  C02F2301/08 ,  C02F2303/18 ,  C02F2303/24

Abstract: This specification discloses a system and method for treating process water from a starch process, and more specifically, recycling a concentrated sodium sulfate solution, obtained from the process water to the starch process.

公开(公告)号：US11827542B2

公开(公告)日：2023-11-28

申请号：US17888074

申请日：2022-08-15

Applicant: The Regents of the University of California

Inventor： Gaurav Sant ,  Zongsu Wei ,  Bu Wang ,  Erika Callagon La Plante ,  Dante Simonetti

IPC: C02F1/68 ,  C01D7/12 ,  C01D7/16 ,  C02F1/44 ,  C01F11/00 ,  C01F11/18 ,  C02F9/00 ,  C02F1/26 ,  C02F1/42 ,  C02F1/52 ,  C02F1/66 ,  C01F5/24 ,  C02F103/08 ,  C02F103/10

CPC classification number: C02F1/683 ,  C01D7/12 ,  C01D7/16 ,  C01F11/005 ,  C01F11/18 ,  C02F1/442 ,  C02F1/444 ,  C02F9/00 ,  C01F5/24 ,  C02F1/265 ,  C02F1/42 ,  C02F1/441 ,  C02F1/52 ,  C02F1/66 ,  C02F1/68 ,  C02F2001/425 ,  C02F2103/08 ,  C02F2103/10 ,  C02F2303/16 ,  C02F2305/00

Abstract: A method includes: (1) using a chelating agent, extracting divalent ions from a brine solution as complexes of the chelating agent and the divalent ions; (2) using a weak acid, regenerating the chelating agent and producing a divalent ion salt solution; and (3) introducing carbon dioxide to the divalent ion salt solution to induce precipitation of the divalent ions as a carbonate salt. Another method includes: (1) combining water with carbon dioxide to produce a carbon dioxide solution; (2) introducing an ion exchanger to the carbon dioxide solution to induce exchange of alkali metal cations included in the ion exchanger with protons included in the carbon dioxide solution and to produce a bicarbonate salt solution of the alkali metal cations; and (3) introducing a brine solution to the bicarbonate salt solution to induce precipitation of divalent ions from the brine solution as a carbonate salt.

公开(公告)号：US11724945B2

公开(公告)日：2023-08-15

申请号：US16789259

申请日：2020-02-12

Applicant: Pentair Residential Filtration, LLC

Inventor： Ramakrishna Budampati ,  John Stauch

IPC: C02F1/00 ,  C02F1/42

CPC classification number: C02F1/008 ,  C02F1/42 ,  C02F2001/425 ,  C02F2209/006 ,  C02F2209/008 ,  C02F2209/42

Abstract: The present disclosure relates to systems and methods for monitoring the fill level of salt in a brine tank of a water softener system. Distance measurements may be taken by a wireless-enabled smart sensor device disposed at an interior surface of a brine tank cover. Calibration of the smart sensor device may include taking distance measurements corresponding to different fill levels of the brine tank, obtaining at least one corresponding user-defined fill ratio, and storing these as calibration data. Subsequent distance measurements may be used to determine a current fill ratio based on the calibration data. If the current fill ratio is below a threshold value, an alert may be sent to the user device indicating that salt should be added. If the current fill ratio is above a previous fill ratio, an alert may be sent to the user device requesting recalibration of the smart sensor device.