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AQUA Evoqua Water Technologies

113 patents

Page 5 of 6
APP
Utility
Wastewater Cleaning System and Process
20 May 20
Systems and method for treating wastewater including a vessel having an inlet and an outlet, a pump in fluid communication with the outlet of the vessel, the pump configured to pump wastewater out of the vessel, a separator in fluid communication with the pump, the separator configured to separate grit from the wastewater, the separator having a first outlet for discharging a grit stream and a second outlet for discharging a wastewater stream, a grit washing system in fluid communication with a source of washing fluid and the first outlet of the separator, the grit washing system configured to wash and dewater grit from the grit stream, the grit washing system having an outlet for discharging a wash wastewater stream, and a return conduit configured to recycle the wastewater stream discharged from the separator to one of the inlet of the vessel and an inlet to the pump.
Matthew Bronk, Argun Olcayto Erdogan, Nathan Antonneau
Filed: 9 Jul 18
GRANT
Utility
Method of combining recuperative digestion with a contact tank and dissolved air flotation
18 May 20
A wastewater treatment system includes a contact tank having a first inlet configured to receive wastewater to be treated, a second inlet configured to receive activated sludge, and an outlet, a dissolved air flotation unit having an inlet in fluid communication with the outlet of the contact tank, a biological treatment unit having a first inlet in fluid communication with an effluent outlet of the dissolved air flotation unit and an outlet, an anaerobic digester having an inlet and an outlet, a floated solids conduit providing fluid communication between the solids outlet of the dissolved air flotation unit and the inlet of the anaerobic digester, and a thickener having an inlet in fluid communication with the outlet of the anaerobic digester, a first outlet in fluid communication with the inlet of the anaerobic digester, and a second outlet.
George W. Smith
Filed: 5 Jun 17
APP
Utility
Ultraviolet Light Activated Oxidation Process for the Reduction of Organic Carbon In Semiconductor Process Water
13 May 20
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.
Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
Filed: 8 Jan 20
APP
Utility
Sub-block Sealing for Electrochemical Seperation Devices
29 Apr 20
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.
Michael J. Muse, Joshua Griffis, LI-Shiang Liang, Michael Shaw, Simon P. Dukes
Filed: 10 Jul 18
GRANT
Utility
Method and system for water treatment
20 Apr 20
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.
Gary C. Ganzi, Frederick C. Wilkins
Filed: 1 Nov 18
GRANT
Utility
High-performance anion exchange membranes and methods of making same
20 Apr 20
Anion exchange membranes may include a polymeric microporous substrate and a cross-linked anion exchange polymeric layer on the substrate.
Juchui Ray Lin
Filed: 6 Nov 17
APP
Utility
Ozone Generation System
15 Apr 20
An ozone generation system which is adaptable for supplying ozone to different medium and small application processes.
Philip Tinsley Dempster
Filed: 9 Dec 19
GRANT
Utility
System for providing treated water
6 Apr 20
A method of treating water in a water treatment system after a replacement of an ion exchange bed includes introducing water to be treated into the ion exchange bed of the water treatment system to produce treated water, calculating a current exchange daily average flow rate of water through the water treatment system, calculating a cumulative daily average flow rate of water through the water treatment system, and determining an estimated number of days remaining to exhaustion of the ion exchange bed based on the current exchange daily average flow rate and the cumulative daily average flow rate.
Erich G. Hoefferle, Isabel Rozario, Stephen Mildner
Filed: 22 Oct 19
APP
Utility
Removal of Selenocyanate from Refinery Sour Water Stripper Wastewater
18 Mar 20
Systems and methods for removing heavy metals such as selenium from wastewater with zero valent iron media.
Michael W. Wismer, Samuel A. Mason, Yongheng Huang
Filed: 21 Nov 19
APP
Utility
Membrane Cleaning with Pulsed Airlift Pump
11 Mar 20
A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom.
Fufang Zha, Gerin James, Joseph Edward Zuback, Peter Zauner, Roger William Phelps
Filed: 24 Oct 19
APP
Utility
Control System for Optimizing Mixing and Energy Usage for Mixing Systems
11 Mar 20
A method and system for treating wastewater is disclosed.
Christopher K. Waul, Argun Olcayto Erdogan
Filed: 7 Dec 17
APP
Utility
Aeration Device for Filtration System
26 Feb 20
An aeration device configured to be fitted to a membrane filtration module having membranes mounted therein.
Tomasz Swiatek, Zhiyi Cao, Bruce Gregory Biltoft, Lisa Kathleen Leckie, Huw Alexander Lazaredes
Filed: 15 May 19
APP
Utility
System and Method of Deionization of Water
19 Feb 20
A method of treating water in a water treatment system after a replacement of an ion exchange bed includes introducing water to be treated into the ion exchange bed of the water treatment system to produce treated water, calculating a current exchange daily average flow rate of water through the water treatment system, calculating a cumulative daily average flow rate of water through the water treatment system, and determining an estimated number of days remaining to exhaustion of the ion exchange bed based on the current exchange daily average flow rate and the cumulative daily average flow rate.
Erich G. Hoefferle, Isabel Rozario, Stephen Mildner
Filed: 22 Oct 19
GRANT
Utility
Methods of providing inlets and outlets to cell pairs in wound ED devices
17 Feb 20
Electrochemical treatment devices for treating water and methods of assembling the devices are provided.
Li-Shiang Liang, Michael J. Muse
Filed: 22 Nov 15
GRANT
Utility
Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
3 Feb 20
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.
Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
Filed: 7 Jul 19
APP
Utility
Method and Device for Repairing a Membrane Filtration Module
15 Jan 20
A method for repairing a membrane filtration module in fluid communication with a plurality of additional membrane filtration modules includes fluidly connecting a fluid transfer assembly to the membrane filtration module, fluidly isolating the membrane filtration module from the plurality of additional membrane filtration modules, forcing liquid within the membrane filtration module into the fluid transfer assembly by introducing a pressurized gas into the membrane filtration module, releasing the pressurized gas from the membrane filtration module, fluidly disconnecting the fluid transfer assembly from the membrane filtration module, repairing one or more damaged membranes in the membrane filtration module, and fluidly reconnecting the membrane filtration module to the plurality of additional membrane filtration modules.
Zhiyi Cao, Bruce Gregory Biltoft, Jessica Stiller, Ying Hao Teo
Filed: 23 Sep 19
APP
Utility
Ballast Water Treatment and Neutralization
15 Jan 20
Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided.
Vadim Zolotarksky
Filed: 24 Sep 17
GRANT
Utility
Aeration discs and methods for using same
13 Jan 20
Aeration discs used in water treatment and methods of using same are disclosed.
George W. Smith, Mark F. Pamperin, Charles S. Applegate, Christopher K. Waul, Marc E. Roehl, Michael L. Doyle
Filed: 10 Sep 15
GRANT
Utility
Nanofiltration membrane and method of manufacturing a nanofiltration membrane
6 Jan 20
A nanofiltration membrane comprising a selective layer comprising or consisting of poly(amide-imide) cross-linked with polyallylamine is provided.
Rong Wang, Lei Shi, Laurentia Setiawan
Filed: 9 Apr 14
GRANT
Utility
Magnetic drum inlet slide and scraper blade
6 Jan 20
A magnetic separator is provided with one or more components that may enhance separation of magnetic and nonmagnetic materials.
Matthew J. Vareika, Joseph P. Gwarjanski, Frank W. Federico, Simone Klyamkin
Filed: 10 Mar 13
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