公开(公告)号：US09023208B2

公开(公告)日：2015-05-05

申请号：US14340232

申请日：2014-07-24

Applicant: Evoqua Water Technologies LLC

Inventor： William E. Davis ,  Peter J. Petit

IPC: B01D33/23 ,  B01D33/21 ,  B01D33/50 ,  B01D33/70 ,  B01D29/07 ,  B01D33/11 ,  B01D29/01

CPC classification number: B01D33/23 ,  B01D29/012 ,  B01D29/07 ,  B01D33/0093 ,  B01D33/067 ,  B01D33/11 ,  B01D33/21 ,  B01D33/50 ,  B01D33/70 ,  B01D36/001 ,  B01D2201/12 ,  B01D2201/127

Abstract: A filter device having a vent device for inhibiting formation of a vacuum in the filter device. The filter device includes a drum for receiving the liquid wherein the drum includes a drum headspace. The filter device also includes filter sets for filtering the liquid. The drum is rotated to enable cleaning of filter media. The filter device also includes a frame having spaced apart supports for supporting each of the filter sets. A fluid passageway extends between the supports, wherein the fluid passageway provides fluid communication between the tank headspace and a filter set to vent a filter set.

Abstract translation: 一种具有用于抑制在过滤装置中形成真空的通气装置的过滤装置。 过滤装置包括用于接收液体的滚筒，其中滚筒包括鼓顶部空间。 过滤装置还包括用于过滤液体的过滤器组。 滚筒旋转以清洁过滤介质。 过滤装置还包括具有用于支撑每个过滤器组的间隔开的支撑件的框架。 流体通道在支撑件之间延伸，其中流体通道提供罐顶部空间与过滤器组件之间的流体连通以排出过滤器组。

公开(公告)号：US12226762B2

公开(公告)日：2025-02-18

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

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：US12194417B2

公开(公告)日：2025-01-14

申请号：US17719363

申请日：2022-04-12

Applicant: Evoqua Water Technologies LLC

Inventor： Li-Shiang Liang ,  Michael J. Shaw ,  Wenxin Du

IPC: B01D61/44 ,  B01D61/46 ,  C02F1/469

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.

公开(公告)号：US12180103B2

公开(公告)日：2024-12-31

申请号：US16287203

申请日：2019-02-27

Applicant: Evoqua Water Technologies LLC

Inventor： Gary C Ganzi ,  Joshua Griffis ,  Simon Dukes ,  Li-Shiang Liang ,  Darren Adrian Dale ,  Michael Shaw ,  Paul Beddoes ,  George Gu

IPC: C02F9/00 ,  C02F1/44 ,  C02F1/467 ,  C02F1/20 ,  C02F1/461 ,  C02F1/469 ,  C02F1/66 ,  C02F1/74 ,  C02F101/10 ,  C02F101/16 ,  C02F103/08

Abstract: A water treatment system for producing potable water and water for irrigation from saline water, the system includes an electrodialysis apparatus including one or more monovalent selective membranes and having an inlet fluidly connectable to a source of water to be treated, a diluate outlet, and a concentrate outlet, a nanofiltration apparatus positioned downstream of the electrodialysis apparatus and having an inlet fluidly connectable to the diluate outlet of the electrodialysis apparatus, a permeate outlet, and a retentate outlet, and an electrolyzer in fluid communication with one of the concentrate outlet and the retentate outlet, and configured to generate a product stream including one or more of chlorine gas, hypochlorite ion, sodium hydroxide, sulfuric acid, hydrochloric acid, or sodium hypochlorite.

公开(公告)号：US20240417293A1

公开(公告)日：2024-12-19

申请号：US18715467

申请日：2022-11-29

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Vincent Grieco ,  Gary C. Ganzi

IPC: C02F1/72 ,  C02F1/00 ,  C02F1/28 ,  C02F1/42 ,  C02F101/14

Abstract: Systems and methods for treating activated carbon used in treatment of water and wastewater containing PFAS are disclosed. A vapor phase granular activated carbon (GAC) column or an internal combustion engine may be fluidly connected downstream of a thermal oxidation process to polish a vapor phase effluent associated with reactivation.

公开(公告)号：US12163001B2

公开(公告)日：2024-12-10

申请号：US17280179

申请日：2019-09-25

Applicant: Evoqua Water Technologies LLC

Inventor： George Gu ,  Simon P. Dukes ,  Savvas Hadjikyriacou ,  Michael Shaw

IPC: C08J5/22 ,  B01D61/42 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/26 ,  B01D71/60 ,  C02F1/469 ,  B01D61/44 ,  C08K5/132 ,  C08K5/315 ,  C08K5/5397

Abstract: Methods of producing an ion exchange membrane support are disclosed. The methods include saturating a polymeric microporous substrate with a charged monomer solution comprising at least one functional monomer, a cross-linking agent, and an effective amount of at least one photopolymerization initiator and polymerizing the at least one functional monomer by exposing the saturated polymeric microporous substrate to ultraviolet light under conditions effective to cross-link the at least one functional monomer and produce the ion exchange membrane support. Methods of producing a monovalent selective ion exchange membrane are also disclosed. The methods include functionalizing an exterior surface of the ion exchange membrane support with a charged compound layer, drying the ion exchange membrane support and soaking the ion exchange membrane support in a solution comprising an acid or a base for an amount of time effective to produce the monovalent selective ion exchange membrane.

公开(公告)号：US20240390858A1

公开(公告)日：2024-11-28

申请号：US18656688

申请日：2024-05-07

Applicant: Evoqua Water Technologies LLC

Inventor： Michael Gullion ,  Joshua Hawley ,  Christopher Hall

IPC: B01D65/02 ,  B01D61/14 ,  B01D61/20 ,  B01D61/22 ,  C02F1/44 ,  C02F103/04 ,  F28F19/02 ,  G01N15/06

Abstract: A conditioning system for a filter module is disclosed. The conditioning system may generally include an inlet, a heat exchanger, a magnetically levitated pump, a channel provided to bypass the heat exchanger, a controller, an outlet, and a base. The system may have components lined with corrosion-resistant materials. A method of conditioning a filter module is also disclosed. The method may generally include measuring TOC in a source of ultrapure water, heating the ultrapure water, rinsing a filter module with the heated water, flushing the filter module with ambient temperature water, and repeating the rinsing with heated water and flushing with ambient temperature water. A method of facilitating conditioning of the filter module is also disclosed. The method may generally include providing a portable filter module conditioning system and providing instructions for installation or use.

公开(公告)号：US12103874B2

公开(公告)日：2024-10-01

申请号：US17461262

申请日：2021-08-30

Applicant: Evoqua Water Technologies LLC

Inventor： Steve D. Sitkiewitz ,  Gary M. Carmignani ,  Lee W. Frederick

IPC: C02F1/72 ,  C02F1/32 ,  C02F1/20 ,  C02F1/42 ,  C02F1/44 ,  C02F1/469 ,  C02F1/66 ,  C02F103/04 ,  C02F103/34

CPC classification number: C02F1/722 ,  C02F1/325 ,  C02F1/20 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4695 ,  C02F1/66 ,  C02F2103/04 ,  C02F2103/346 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/20

Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.

公开(公告)号：US20240317616A1

公开(公告)日：2024-09-26

申请号：US18689667

申请日：2022-08-30

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Simon Paul Dukes ,  Joshua W. Griffis ,  Yang Chen ,  George Y. Gu

IPC: C02F1/48 ,  C02F1/24

CPC classification number: C02F1/48 ,  C02F1/24 ,  C02F2303/26 ,  C02F2305/023

Abstract: Systems and methods for treating water containing PFAS are disclosed. Plasma activated excited gas is encapsulated with nanobubbles in water comprising PFAS to be treated. Liquid-phase reaction of the PFAS with the encapsulated plasma activated excited gas at the air-water interface of the nanobubbles is promoted. The PFAS can be concentrated upstream of the plasma reactor. A foam fractionation process may be used in conjunction with the plasma reactor to facilitate PFAS removal.

公开(公告)号：US20240240338A1

公开(公告)日：2024-07-18

申请号：US18560125

申请日：2022-05-11

Applicant: Evoqua Water Technologies LLC

Inventor： Joshua Griffis ,  Simon P Dukes ,  Li-Shiang Liang ,  Benjamin Satterfield ,  Zaccur Qasim Fettig

IPC: C25B15/031 ,  C25B1/04 ,  C25B9/21 ,  C25B15/033 ,  C25B15/08

CPC classification number: C25B15/031 ,  C25B1/04 ,  C25B9/21 ,  C25B15/033 ,  C25B15/087

Abstract: Apparatuses for the generation of carbon dioxide and hydrogen from a water having a carbonate species are disclosed. The apparatus includes an anodic compartment having an anode disposed on a first side of the anodic compartment and a cathodic compartment having a cathode disposed on a first side of the cathodic compartment. The apparatus further includes a first cation permeable fluidic separator disposed on a second side of the anodic compartment and a second cation permeable fluidic separator disposed on a second side of the cationic compartment. A center compartment is defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator. The apparatus further includes a flow control system configured to independently control flow of water through each of the anodic compartment, the cathodic compartment, and the center compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.