公开(公告)号：US20240336507A1

公开(公告)日：2024-10-10

申请号：US18560118

申请日：2022-05-26

申请人： Evoqua Water Technologies LLC

发明人： Simon P Dukes ,  Joshua Griffis ,  Li-Shiang Liang ,  Harshita Gogoi ,  Wenxin Du ,  Thomas K Mallmann

IPC分类号： C02F9/00 ,  B01D61/02 ,  B01D61/14 ,  B01D61/16 ,  B01D61/58 ,  C02F1/00 ,  C02F1/44 ,  C02F1/52 ,  C02F1/66 ,  C02F5/00 ,  C02F101/14 ,  C02F103/34

CPC分类号： C02F9/00 ,  B01D61/16 ,  B01D61/58 ,  B01D61/026 ,  B01D61/027 ,  B01D61/029 ,  B01D61/145 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2317/025 ,  B01D2317/08 ,  C02F1/004 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F1/5236 ,  C02F1/66 ,  C02F5/00 ,  C02F2101/14 ,  C02F2103/34 ,  C02F2301/08

摘要： A system for the treatment of phosphate-containing wastewater comprises a pretreatment subsystem including a mixing chamber configured to mix a potassium-based salt with the wastewater to precipitate K2SiF6 from the wastewater, a solids-liquid separator to separate the precipitated K2SiF6 from the wastewater and form a pretreated wastewater, and a mixing chamber to dilute the pretreated wastewater with raw wastewater, and a filtration subsystem including a first filtration configured to receive the pretreated wastewater and remove particles to form a first effluent, a second filtration unit remove divalent ions from the first effluent and form a second effluent, and a third filtration unit configured to remove additional dissolved solids from the second effluent and form a third effluent suitable for discharge to the environment.

公开(公告)号：US12111300B2

公开(公告)日：2024-10-08

申请号：US17632233

申请日：2020-07-31

申请人： Evoqua Water Technologies LLC

发明人： Philip Tinsley Dempster

IPC分类号： G01N33/00 ,  G01N29/024 ,  G01N29/32 ,  G01N29/34

CPC分类号： G01N33/0039 ,  G01N29/024 ,  G01N29/326 ,  G01N29/345 ,  G01N29/348 ,  G01N33/0004 ,  G01N2291/021 ,  G01N2291/0215 ,  G01N2291/02809 ,  G01N2291/02881 ,  G01N2291/102

摘要： A gas analyzer uses continuous sonic signals through a conduit to determine the composition of a gas in the conduit. A transmitting transducer drives sonic signals at a fixed frequency and a second transducer receives the sonic signals. The phase shift between two signals corresponds to the speed of sound through the gas and is related to the composition of the gas. The electronic versions of these signals are processed by lowering, or dividing, the fixed frequency which expands the range of phase shift measurement and allows the determination of an expanded range for the gas composition. In an ozone generation system, the gas analyzer is highly suitable for determining the composition of gases derived from air as a gas of known composition and a calibration point.

公开(公告)号：US20240279093A1

公开(公告)日：2024-08-22

申请号：US18560849

申请日：2022-08-04

申请人： Evoqua Water Technologies LLC

发明人： Michael R. Riffe ,  Palanivel Muthusamy ,  Umar Basheer ,  Pratheesh P. Perumal ,  Tulasiram Yama ,  Sharath Ramesh ,  Viswanathan Sampath ,  Suthahar Manoharan ,  Raymund E. Mears ,  Theodore Kocol ,  Gopinath Rajendran ,  Joseph A. Herbst ,  Timothy S. Crofton ,  James R. Goodwin ,  Steven R. Lambert ,  Andrew M. Crowther

IPC分类号： C02F3/00 ,  C02F1/00

CPC分类号： C02F3/006 ,  C02F1/006 ,  C02F2209/40

摘要： An apparatus for diffusing wastewater into a clarifier is disclosed. The apparatus has a rotationally symmetric hollow body having a plurality of flow distributors positioned about a perimeter of the rotationally symmetric hollow body and a baffle extending around a bottom end portion of the rotationally symmetric hollow body. The apparatus is dimensioned to fit within an influent well of the clarifier and be connectable to the clarifier on a top end portion of the rotationally symmetric hollow body. A wastewater treatment system including a clarifier and the apparatus is disclosed. A method of retrofitting a circular clarifier by providing the apparatus is also disclosed.

公开(公告)号：US20240216837A1

公开(公告)日：2024-07-04

申请号：US18282601

申请日：2022-03-18

申请人： Evoqua Water Technologies LLC

发明人： Chad Massel

IPC分类号： B01D25/21

CPC分类号： B01D25/215

摘要： A method of retrofitting a filter plate including a filtration zone and a frame surrounding the filtration zone for use in a filter press. The frame of the filter plate is altered to removably receive a filtrate cartridge, the filtrate cartridge constructed and arranged to facilitate flow out of a filtration chamber of the filter press associated with the filtration zone to a discharge port. The filtrate cartridge is inserted in the frame. Related filter plates and filter presses are also disclosed.

公开(公告)号：US20240208848A1

公开(公告)日：2024-06-27

申请号：US18580974

申请日：2022-07-13

申请人： EVOQUA WATER TECHNOLOGIES LLC

发明人： Simon Paul Dukes ,  Savvas Hadjikyriacou

IPC分类号： C02F9/00 ,  C02F1/02 ,  C02F1/28 ,  C02F1/44 ,  C02F1/72 ,  C02F101/10 ,  C02F101/16 ,  C02F101/36

CPC分类号： C02F9/00 ,  C02F1/02 ,  C02F1/283 ,  C02F1/285 ,  C02F1/44 ,  C02F1/72 ,  C02F2101/101 ,  C02F2101/16 ,  C02F2101/36 ,  C02F2303/16

摘要： Methods of treating water containing PFAS are disclosed. The methods include dosing water containing PFAS with a removal material, e.g., adsorption media, to promote loading of the removal material, e.g., adsorption media, with PFAS. The methods include producing a slurry stream including the PFAS-loaded removal material. e.g., adsorption media. The methods include subjecting the slurry stream to a supercritical water oxidation (SCWO) process. The SCWO process is driven at least in part by a predetermined calorific value of the removal material, e.g., adsorption media. Systems for treating water containing PFAS are also disclosed. Systems include a contact reactor containing removal material. e.g., adsorption media; a source of water comprising PFAS fluidly connected to an inlet of the contact reactor; a separation system fluidly connected downstream of the contact reactor; and SCWO reactor fluidly connected downstream of the separation system.

公开(公告)号：US12017183B2

公开(公告)日：2024-06-25

申请号：US18209457

申请日：2023-06-13

申请人： Evoqua Water Technologies LLC

发明人： Michael J. Muse ,  Joshua Griffis ,  Li-Shiang Liang ,  Michael Shaw ,  Simon P. Dukes

IPC分类号： B01D61/48 ,  B01D61/50 ,  B01D63/08 ,  B01D65/00 ,  C02F1/469

CPC分类号： B01D65/003 ,  B01D61/50 ,  B01D63/085 ,  C02F1/4693 ,  C02F1/4695 ,  B01D2313/04 ,  C02F2201/004

摘要： An electrochemical separation device includes a first electrode, a second electrode, and a cell stack including a plurality of sub-blocks each having alternating depleting compartments and concentrating compartments and each including frame and channel portions disposed between the first electrode and the second electrode. An internal seal formed of a first material is disposed between and in contact with the channel portions between adjacent sub-blocks in the cell stack and configured to prevent leakage between depleting compartments and concentrating compartments in the adjacent sub-blocks. An external seal formed of a second material having at least one material parameter different from the first material is disposed between and in contact with the frames of the adjacent sub-blocks in the cell stack and configured to prevent leakage from an internal volume of the electrochemical separation device to outside of the electrochemical separation device.

公开(公告)号：US20240002032A1

公开(公告)日：2024-01-04

申请号：US18213799

申请日：2023-06-23

申请人： Evoqua Water Technologies LLC

发明人： Vadim Zolotarsky

IPC分类号： B63J4/00 ,  C02F1/00 ,  C02F1/467 ,  C02F1/68

CPC分类号： B63J4/002 ,  C02F1/004 ,  C02F1/008 ,  C02F1/4674 ,  C02F1/68 ,  B63B13/00

摘要： Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided. The systems utilize oxidation reduction potential control to regulate the dechlorination of a biocidal agent to allowable discharge levels in ship buoyancy systems and ship cooling water systems.

公开(公告)号：USD1007641S1

公开(公告)日：2023-12-12

申请号：US29799494

申请日：2021-07-14

申请人： Evoqua Water Technologies LLC

设计人： Krishna Kamath

摘要： FIG. 1 is a top plan view from the front of the filter;
FIG. 2 is a left plan view of the filter;
FIG. 3 is a front plan view of the filter;
FIG. 4 is a right plan view of the filter;
FIG. 5 is an isometric view from the front of the filter;
FIG. 6 is a bottom plan view from the back of the filter;
FIG. 7 is a top plan view from the back of the filter;
FIG. 8 is a right plan view of the filter;
FIG. 9 is a plan view from the back of the filter;
FIG. 10 is a left plan view of the filter;
FIG. 11 is an isometric view from the back of the filter; and,
FIG. 12 is a bottom plan view from the back of the filter.
The broken lines shown in the figures are for the purpose of illustrating portions of the regenerative media filter which form no part of the claimed design.

公开(公告)号：US20230365447A1

公开(公告)日：2023-11-16

申请号：US18223747

申请日：2023-07-19

申请人： Evoqua Water Technologies LLC

发明人： Sergio Pino Jelcic

IPC分类号： C02F3/00 ,  C02F3/06 ,  C02F3/04 ,  C02F1/52 ,  C02F3/12 ,  C02F3/08 ,  C02F1/48 ,  C02F3/28 ,  C02F1/56

CPC分类号： C02F3/006 ,  C02F3/06 ,  C02F3/04 ,  C02F1/5236 ,  C02F3/12 ,  C02F3/082 ,  C02F1/48 ,  C02F3/2806 ,  C02F1/56 ,  C02F2209/36 ,  C02F3/2833 ,  C02F2209/15 ,  C02F3/2826 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/40 ,  Y02W10/10 ,  C02F3/085 ,  C02F2301/043 ,  C02F2209/10 ,  C02F2209/08 ,  C02F2305/12 ,  C02F2209/005 ,  C02F2209/14

摘要： A system and method of treating wastewater. In one embodiment, the system comprises a biological reactor fluidly connected to a source of wastewater and having a treated wastewater outlet, a fixed film biological reactor connected to the source of wastewater and having a fixed film effluent outlet, and a ballasted system fluidly connected to the fixed film effluent outlet. The ballasted system may comprise a ballast reactor tank configured to provide a ballasted effluent, and a source of ballast material fluidly connected to an inlet of the ballast reactor tank. The system may further comprise a bypass line having an inlet fluidly connected to the source of wastewater, a first outlet fluidly connected to the ballasted system, and a second outlet fluidly connected to the fixed film biological reactor, the bypass line configured to bypass the fixed film biological reactor.

公开(公告)号：US11779863B2

公开(公告)日：2023-10-10

申请号：US17875394

申请日：2022-07-27

申请人： Evoqua Water Technologies LLC

发明人： Steven Nicolich

IPC分类号： B01D24/48 ,  B01D24/02 ,  B01D24/46 ,  B01D35/143 ,  C02F1/00 ,  C02F103/20 ,  C02F103/42

CPC分类号： B01D24/4884 ,  B01D24/02 ,  B01D24/4631 ,  B01D24/4668 ,  B01D35/143 ,  C02F1/004 ,  C02F1/008 ,  B01D2101/04 ,  C02F2103/20 ,  C02F2103/42 ,  C02F2209/005 ,  C02F2209/03 ,  C02F2303/16

摘要： A system for treating water for use in aquatics or recreational facilities is disclosed. The system includes a media filter vessel, a pressure sensor, and a monochromatic light source. A method of treating water for use in aquatics or recreational facilities is also disclosed. The method includes fluidly connecting a media filter vessel to a source of water for use in aquatics or recreational facilities, illuminating a media inside the media filter vessel, observing a monochromatic light source display a first indicator and observing a monochromatic light source display a second indicator. A method of retrofitting a media filter vessel is also disclosed. The method includes installing a pressure sensor on the media filter vessel, installing a monochromatic light source and operably connecting the monochromatic light source to a manual control and to the pressure sensor.