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AQUA Evoqua Water Technologies

GRANT
Utility
Ballast water management system
19 Oct 21
Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided.
Lars Nupnau
Filed: 30 Nov 17
APP
Utility
Varying Water Level Solids and Tracking Control
7 Oct 21
A sequencing batch reactor includes a liquid level sensor configured to measure a level of liquid in the vessel and provide an indication of the level of the liquid to a controller and a sludge detector configured to measure a position of an interface between sludge and solids-lean supernatant in the vessel and to provide an indication of the position of the interface to the controller.
Timothy Lee Lindemann, Michael Casey Whittier
Filed: 16 Nov 20
GRANT
Utility
Composite loop chain
28 Sep 21
A settling basin of a wastewater treatment system includes a collector chain including chain links having a plurality of side bars, stepped connecting pins configured to join the plurality of side bars and including a first end including a head portion having a cross-sectional area larger than portions of the plurality of side bars through which the stepped connecting pin extends, end caps configured to receive second ends of the stepped connecting pins, and apertures defined in the end caps and second ends of the stepped connecting pins configured to receive a retaining element that holds the end caps in position on the second ends of the stepped connecting pins.
Donald W. Hindman, Krishna Kamath
Filed: 13 Mar 18
APP
Utility
Use of Porous Glass Media for a Biofilter to Remove Odorous Compounds from an Air Stream
2 Sep 21
A system for removing undesirable compounds from contaminated air includes a biofilter having sintered glass media.
Timothy Frank Matheis
Filed: 10 May 21
GRANT
Utility
Ballast water treatment and neutralization
31 Aug 21
Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided.
Vadim Zolotarsky
Filed: 25 Sep 17
APP
Utility
Ion Exchange resin transportation and storage
12 Aug 21
Methods of stabilizing virgin ion exchange resin material are provided.
James Buckner, Gregory Bachman
Filed: 27 Apr 21
APP
Utility
Combination of Captivator and Fixed Film Bioreactor Solutions
29 Jul 21
A wastewater treatment system including a contact tank, a dissolved air flotation unit, a fixed film reactor, and a solids-liquid separation unit is disclosed.
Argun O. Erdogan, Michael L. Doyie, Deborah Hyke
Filed: 4 Jun 19
APP
Utility
Treatment Using Fixed Film Processes and Ballasted Settling
29 Jul 21
A system and method is provided for water and wastewater treatment.
Nathan Antonneau, Timothy Lindemann, Todd Schwingle, Michael Casey Whittier, Steven E. Woodard, Robert Backman, Andrew G. Bishop
Filed: 11 Feb 21
GRANT
Utility
Method and system for treating ultrapure water
27 Jul 21
According to various aspects and embodiments, a system and method for polishing ultrapure water (UPW) is disclosed.
Boris Eliosov, Glen P. Sundstrom, Bruce L. Coulter
Filed: 15 Sep 17
GRANT
Utility
Method and apparatus to monitor and control a water system
6 Jul 21
A system for providing treated water includes a water treatment unit including an inlet water quality probe, a worker bed, a probe to measure a parameter of water from the worker bed, a polisher bed connected downstream from the worker bed and having a probe to measure a parameter of water from the polisher bed, and a flow meter upstream of the worker bed or downstream of the polisher bed.
Scott Branum, Erich Hoefferle
Filed: 9 Jan 19
GRANT
Utility
Wastewater treatment system and method
6 Jul 21
Systems and methods for treating wastewater including a contact tank configured to mix influent wastewater with activated sludge to form a mixed liquor, a dissolved air flotation unit having an inlet and an outlet, the inlet of the dissolved air flotation unit in fluid communication with an outlet of the contact tank, and a membrane bioreactor including a biological treatment vessel having an inlet in fluid communication with the outlet of the dissolved air flotation unit and an activated sludge outlet in fluid communication with an inlet of the contact tank.
Orest Zacerkowny, Argun O. Erdogan
Filed: 6 Apr 18
APP
Utility
Modified Activated Carbon and Methods of Using Same
17 Jun 21
Modified activated carbon is disclosed for use in water treatment.
Adam M. Redding
Filed: 14 Aug 19
APP
Utility
Systems and Methods for Measuring Composition of Water
17 Jun 21
A method of determining composition of an aqueous solution is disclosed.
Glen P. Sundstrom
Filed: 13 Aug 19
APP
Utility
Electrodialysis Process With Active Foulant Removal Sequence
3 Jun 21
Methods of operating an electrochemical separation device is disclosed.
Scott Waugh, Li-Shiang Liang, Frederick C. Wilkins, Charles P. Buzzel
Filed: 25 Jul 19
GRANT
Utility
Ion exchange resin transportation and storage
1 Jun 21
Methods of stabilizing virgin ion exchange resin material are provided.
James Buckner, Gregory Bachman
Filed: 12 Feb 19
APP
Utility
Filtering panel and method of making the same
13 May 21
The present invention relates to a filtering panel (100) for a disk filter and a disk filter for water purification, comprising a metal filter cloth (16, 116) such as a stainless steel filter cloth, pre-tensioned in both warp and weft directions and fastened to a frame (10, 110) comprising a peripheral portion (11, 111), which is integral with an inner grillwork (12) and which divides the inner area of the peripheral portion (11, 111) into fields (15, 115).
Marco Braschi, Roberto Negrini
Filed: 24 Nov 20
APP
Utility
Pulsed power supply for sustainable redox agent supply for hydrogen abatement during electrochemical hypochlorite generation
13 May 21
A method of operating an electrochemical cell including introducing an aqueous solution into the electrochemical cell, applying a current across an anode and a cathode to produce a product, monitoring the voltage, dissolved hydrogen, or a condition of the aqueous solution, and applying the current in a pulsed waveform responsive to one of the measured parameters is disclosed.
George Gu, Simon Paul Dukes, Joshua Griffis, Michael Shaw
Filed: 6 Mar 18
APP
Utility
Novel flow features for self-cleaning concentric tubular electrochemical cells
13 May 21
Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed.
Joshua Griffis, Andrew Green, Li-Shiang Liang, Paul Beddoes
Filed: 13 Apr 18
GRANT
Utility
Use of porous glass media for a biofilter to remove odorous compounds from an air stream
11 May 21
A system for removing undesirable compounds from contaminated air includes a biofilter having porous glass media.
Timothy Frank Matheis
Filed: 10 Jun 20
APP
Utility
Manual Filter Press With Displaceable Follower Stop
6 May 21
A filter press includes a plurality of filter plates, a hydraulic cylinder, a follower plate through which the hydraulic cylinder is configured to apply pressure to the plurality of filter plates, and a spacer rod configured to transfer force from the hydraulic cylinder to the follower plate.
Chad Massel, Jason Letherby
Filed: 19 Feb 18
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