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公开(公告)号：US11584665B2
公开(公告)日：2023-02-21
申请号：US16603017
申请日：2018-04-13
Applicant: Evoqua Water Technologies LLC
Inventor： Andrew Green , Li-Shiang Liang , Joshua Griffis , Paul Beddoes
Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.
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12.发明授权公开(公告)号：US10814280B2
公开(公告)日：2020-10-27
申请号：US15567398
申请日：2016-04-22
Applicant: Evoqua Water Technologies LLC
Inventor： Joshua Griffis , Li-Shiang Liang
Abstract: A module comprises a cell stack having a plurality of alternating ion depleting compartments and ion concentrating compartments, an inlet manifold configured to facilitate a flow of fluid into the cell stack, and a first flow distribution system, associated with the inlet manifold, including a first ramp to promote the circulation of the flow of fluid into the cell stack.
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公开(公告)号：US20200215489A1
公开(公告)日：2020-07-09
申请号：US16098591
申请日：2017-05-04
Applicant: Evoqua Water Technologies LLC
Inventor： Li-Shiang Liang
Abstract: A method of operating an electrochemical device includes periodically discharging a volume of concentrate reject in a timed batch cycle and replacing the concentrate reject with feed water. An electrochemical water treatment system includes a recycle line having a valve controlled by a control module. The control module periodically opens the valve to discharge concentrate reject from the recycle line in a batch timed cycle. The recycle line is fed with feed water to replace the discharged concentrate reject.
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公开(公告)号：US20170050866A1
公开(公告)日：2017-02-23
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
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。
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公开(公告)号：US12070722B2
公开(公告)日：2024-08-27
申请号：US18071613
申请日：2022-11-29
Applicant: Evoqua Water Technologies LLC
Inventor： Joshua Griffis , Li-Shiang Liang , William Lane , Simon P. Dukes , Kris Wy Loon Lim
CPC classification number: B01D61/54 , B01D17/06 , B01D17/085 , B01D61/422 , B01D61/46 , B01D61/50
Abstract: An electrochemical separation device includes a first electrode, a second electrode, a cell stack including alternating depleting compartments and concentrating compartments disposed between the first electrode and the second electrode, an inlet manifold configured to introduce a fluid to one of the depleting compartments or the concentrating compartments an outlet manifold, and one or more of a fluid flow director disposed within the inlet manifold and having a surface configured to alter a flow path of the fluid introduced into the inlet manifold and direct the fluid into the one of the depleting compartments or the concentrating compartments, and a second fluid flow director disposed within the outlet manifold and having a surface configured to alter a flow path of the fluid introduced into the outlet manifold via one of the depleting compartments or the concentrating compartments.
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Patent Agency Ranking
公开(公告)号：US11958762B1
公开(公告)日：2024-04-16
申请号：US18112470
申请日：2023-02-21
Applicant: Evoqua Water Technologies LLC
Inventor： Andrew Green , Li-Shiang Liang , Joshua Griffis , Paul Beddoes
IPC: C02F1/00 , C02F1/461 , C02F1/467 , C02F103/08
CPC classification number: C02F1/46109 , C02F1/4674 , C02F2001/46119 , C02F2001/46171 , C02F2103/08 , C02F2201/4611 , C02F2201/46155 , C02F2303/04
Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.
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公开(公告)号：US20210162347A1
公开(公告)日：2021-06-03
申请号：US17263006
申请日：2019-07-25
Applicant: EVOQUA WATER TECHNOLOGIES LLC
Inventor： Scott Waugh , Li-Shiang Liang , Frederick C. Wilkins , Charles P. Buzzel
Abstract: Methods of operating an electrochemical separation device is disclosed. The methods include operating the electrochemical separation device in an active mode until the resistance reaches a predetermined threshold, regenerating the electrochemical separation device in a passive mode until the resistance reaches a predetermined threshold, and resuming operation of the electrochemical separation device in the active mode. The methods also include operating the electrochemical separation device in an active mode for a predetermined period of time, regenerating the electrochemical separation device in a passive mode for a predetermined period of time, and resuming operation of the electrochemical separation device in the active mode. Water treatment systems include the electrochemical separation device and a control module are also disclosed. Methods of facilitating operation of the electrochemical separation device by providing a control sequence are also disclosed.
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公开(公告)号：US20210107812A1
公开(公告)日：2021-04-15
申请号：US16603017
申请日：2018-04-13
Applicant: Evoqua Water Technologies LLC
Inventor： Andrew Green , Li-Shiang Liang , Joshua Griffis , Paul Beddoes
Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.
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公开(公告)号：US10561988B2
公开(公告)日：2020-02-18
申请号：US15528273
申请日：2015-11-23
Applicant: Evoqua Water Technologies LLC
Inventor： Li-Shiang Liang , Michael J. Muse
IPC: B01D61/46 , B01D63/10 , C02F1/469 , C02F103/08
Abstract: Electrochemical treatment devices for treating water and methods of assembling the devices are provided. Disclosed masking and potting techniques allow separate feeds to be delivered to and/or collected from the depleting compartments and concentrating compartments.
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公开(公告)号：US20180265380A1
公开(公告)日：2018-09-20
申请号：US15983827
申请日：2018-05-18
Applicant: Evoqua Water Technologies LLC
Inventor： Li-Shiang Liang
CPC classification number: C02F1/4695 , B01D61/46 , B01D61/485 , B01D61/52 , B01D63/082 , B01D63/10 , B01D63/14 , B01D2313/08 , B01D2313/20 , B01D2313/345 , C02F1/46109 , C02F1/4693 , C02F2201/4611 , C02F2201/46115 , Y02W10/33 , Y02W10/37
Abstract: Systems and methods for electrochemical separation are provided. An electrochemical separation device may include at least one cell pair wound around an electrode to from a bundle having a racetrack configuration.
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