公开(公告)号：US10662085B2

公开(公告)日：2020-05-26

申请号：US15257108

申请日：2016-09-06

Applicant: Evoqua Water Technologies LLC

Inventor： Gary C. Ganzi ,  Li-Shiang Liang ,  Frederick C. Wilkins

IPC: C02F1/46 ,  C02F1/467 ,  C02F1/469 ,  B01D61/58 ,  B01D61/44 ,  B01D61/48 ,  C02F1/00 ,  C02F1/44 ,  C02F1/42 ,  C02F103/08

Abstract: A low energy water treatment system and method is provided. The system has at least one electrodialysis device that produces partially treated water and a brine byproduct, a softener, and at least one electrodeionization device. The partially treated water stream can be softened by the softener to reduce the likelihood of scale formation and to reduce energy consumption in the electrodeionization device, which produces water having target properties. At least a portion of the energy used by the electrodeionization device can be generated by concentration differences between the brine and seawater streams introduced into compartments thereof. The brine stream can also be used to regenerate the softener.

公开(公告)号：US20170362102A1

公开(公告)日：2017-12-21

申请号：US15681542

申请日：2017-08-21

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Gary C. Ganzi ,  Frederick C. Wilkins

IPC: C02F1/469 ,  C02F9/00 ,  B01D61/48 ,  C02F1/44 ,  C02F103/08 ,  B01D61/44

CPC classification number: C02F1/469 ,  B01D61/44 ,  B01D61/48 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4693 ,  C02F1/4695 ,  C02F9/00 ,  C02F2103/08 ,  C02F2201/46115 ,  C02F2301/08 ,  Y02A20/131 ,  Y02A20/134

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 brackish water and methods of operation of same.

公开(公告)号：US08864971B2

公开(公告)日：2014-10-21

申请号：US13768362

申请日：2013-02-15

Applicant: Evoqua Water Technologies LLC

Inventor： Anil D. Jha ,  Frederick C. Wilkins ,  Evgeniya Freydina ,  Aytac Sezgi ,  Reshma Madhusudan

IPC: B01D61/48 ,  C02F5/00 ,  C02F1/42 ,  C02F1/469 ,  C02F1/46

CPC classification number: C02F5/00 ,  C02F1/42 ,  C02F1/4602 ,  C02F1/469 ,  C02F1/4695 ,  C02F2201/46115 ,  C02F2201/4612 ,  C02F2201/4613 ,  C02F2209/005 ,  C02F2303/16

Abstract: A treatment system provides treated or softened water to a point of use by removing at least a portion of any undesirable species contained in water from a water source. The treatment system can be operated to reduce the likelihood of formation of any scale that can be generated during normal operation of an electrochemical device. The formation of scale in the treatment system, including its wetted components, may be inhibited by reversing or substituting the flowing liquid having hardness-causing species with another liquid having a low tendency to produce scale, such as a low LSI water. Various arrangements of components in the treatment system can be flushed by directing the valves and the pumps of the system to displace liquid having hardness-causing species with a liquid that has little or no tendency to form scale.

Abstract translation: 处理系统通过从水源中去除包含在水中的任何不期望的物质的至少一部分，将经处理或软化的水提供到使用点。 可以操作处理系统以减少在电化学装置的正常操作期间可能产生的任何氧化皮的形成的可能性。 在处理系统中，包括其湿润部件的氧化皮的形成可以通过用具有低LSI产生水垢的低倾向的另一种液体的流动性液体来替换或代替具有硬度的物质来抑制。 可以通过引导系统的阀和泵来冲洗处理系统中的部件的各种布置，以用具有很小或没有形成垢的趋势的液体来置换具有硬度产生物质的液体。

公开(公告)号：US20240228352A1

公开(公告)日：2024-07-11

申请号：US18692025

申请日：2022-09-12

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Joshua W. Griffis ,  Li-Shiang Liang ,  Scott Waugh ,  Charles P. Buzzel ,  Frederick C. Wilkins ,  Gray C. Ganzi

IPC: C02F9/00 ,  B01D61/02 ,  B01D61/04 ,  B01D61/06 ,  B01D61/42 ,  B01D61/48 ,  B01D61/58 ,  B01D71/56 ,  C02F1/44 ,  C02F1/469 ,  C02F103/08

CPC classification number: C02F9/00 ,  B01D61/06 ,  B01D61/58 ,  B01D71/56 ,  B01D61/027 ,  B01D61/04 ,  B01D61/423 ,  B01D61/48 ,  B01D2313/18 ,  B01D2313/246 ,  B01D2317/022 ,  B01D2317/025 ,  B01D2317/08 ,  C02F1/442 ,  C02F1/4695 ,  C02F2103/08 ,  C02F2209/40 ,  C02F2301/046 ,  C02F2301/08

Abstract: Systems for water desalination are disclosed. The systems include a source of non-potable water, a low pressure nanofiltration device, a first electrodialysis unit, a second electrodialysis unit, and recycle conduits. Methods of water desalination including directing non-potable water to a low pressure nanofiltration device, a first electrodialysis unit, and a second electrodialysis unit are also disclosed. Methods of facilitating water desalination by providing a water desalination system are also disclosed.

公开(公告)号：US11655166B2

公开(公告)日：2023-05-23

申请号：US16613306

申请日：2018-05-08

Applicant: Evoqua Water Technologies LLC

Inventor： Gary C. Ganzi ,  Frederick C. Wilkins ,  Li-Shiang Liang ,  Paul T. Rice

IPC: C02F9/00 ,  C02F1/469 ,  B01D61/44 ,  C02F1/00 ,  C02F1/20 ,  C02F1/52 ,  C02F1/66 ,  C02F1/74 ,  C02F101/10 ,  C02F101/20 ,  C02F103/08

CPC classification number: C02F1/4693 ,  B01D61/44 ,  C02F9/00 ,  C02F1/004 ,  C02F1/20 ,  C02F1/5236 ,  C02F1/66 ,  C02F1/74 ,  C02F2101/101 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2103/08

Abstract: A method of providing water suitable for irrigation use includes feeding pre-treated water to an electrodialysis apparatus, treating the pre-treated water in the electrodialysis apparatus by selectively removing either one or both of monovalent anionic and monovalent cationic species from the pre-treated water while retaining either one or both of multivalent anionic and multivalent cationic species to produce a treated water stream having a lower ratio of monovalent ions to multivalent ions than the pre-treated water, and directing the treated water into an irrigation water distribution system.

公开(公告)号：US20170361279A1

公开(公告)日：2017-12-21

申请号：US15681577

申请日：2017-08-21

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Gary C. Ganzi ,  Frederick C. Wilkins

IPC: B01D61/58 ,  C02F1/469 ,  C02F1/44 ,  A01G25/00 ,  C02F1/00 ,  B01D61/02 ,  B01D61/46

CPC classification number: B01D61/58 ,  A01G25/00 ,  B01D61/027 ,  B01D61/44 ,  B01D61/46 ,  B01D61/48 ,  B01D2311/246 ,  B01D2311/2649 ,  B01D2317/02 ,  B01D2317/022 ,  B01D2317/08 ,  C02F1/008 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F1/469 ,  C02F1/4693 ,  C02F1/4695 ,  C02F9/00 ,  C02F2103/08 ,  C02F2201/46115 ,  C02F2209/05 ,  C02F2301/08 ,  Y02A20/131 ,  Y02A20/134

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 brackish or saline water and methods of operation of same.

公开(公告)号：US20150108007A1

公开(公告)日：2015-04-23

申请号：US14539691

申请日：2014-11-12

Applicant: Evoqua Water Technologies LLC

Inventor： Gary C. Ganzi ,  Li-Shiang Liang ,  Frederick C. Wilkins

IPC: C02F1/469 ,  C02F1/467

CPC classification number: C02F1/4604 ,  B01D61/44 ,  B01D61/48 ,  B01D61/58 ,  B01D2311/06 ,  B01D2313/28 ,  B01D2313/30 ,  C02F1/001 ,  C02F1/444 ,  C02F1/4674 ,  C02F1/4693 ,  C02F1/4695 ,  C02F2001/422 ,  C02F2103/08 ,  C02F2209/005 ,  Y02A20/131 ,  Y02A20/134 ,  B01D2311/12

Abstract: A low energy water treatment system and method is provided. The system has at least one electrodialysis device that produces partially treated water and a brine byproduct, a softener, and at least one electrodeionization device. The partially treated water stream can be softened by the softener to reduce the likelihood of scale formation and to reduce energy consumption in the electrodeionization device, which produces water having target properties. At least a portion of the energy used by the electrodeionization device can be generated by concentration differences between the brine and seawater streams introduced into compartments thereof. The brine stream can also be used to regenerate the softener.

Abstract translation: 提供了一种低能水处理系统和方法。 该系统具有至少一个电渗析装置，其产生部分处理的水和盐水副产物，软化剂和至少一个电去离子装置。 部分处理的水流可以由软化剂软化，以减少形成水垢的可能性并降低产生具有目标性能的水的电去离子装置中的能量消耗。 电去离子装置使用的能量的至少一部分能够通过引入其隔室中的盐水和海水之间的浓度差产生。 盐水也可用于再生软化剂。