100 patents
Page 3 of 5
Utility
Reduced volume electrochlorination cells and methods of manufacturing same
12 Jul 22
An electrochemical cell includes a housing having an inlet, an outlet, and a central axis and an anode-cathode pair disposed concentrically within the housing about the central axis and defining an active area between an anode and a cathode of the anode-cathode pair.
Paul Beddoes, Li-Shiang Liang, Andrew Green, Jacob Telepciak, Joshua W. Griffis, Simon P. Dukes
Filed: 23 Dec 19
Utility
Ozone generation system
5 Jul 22
An ozone generation system which is adaptable for supplying ozone to different medium and small application processes.
Philip Tinsley Dempster
Filed: 10 Dec 19
Utility
Removal of selenocyanate from refinery sour water stripper wastewater
21 Jun 22
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: 22 Nov 19
Utility
Method and system for controlling disinfection in recirculating water systems
7 Jun 22
The present invention relates to a method and system for controlling disinfection in recirculating water systems and a method for retrofitting a recirculation system.
Wolfgang Kleiber
Filed: 7 Aug 18
Utility
High solids dissolved air flotation system and methods
7 Jun 22
A wastewater treatment system including an aeration unit, a contact tank, a dissolved air flotation unit, and a biological treatment unit is disclosed.
Argun Olcayto Erdogan, Michael L. Doyle
Filed: 13 Mar 19
Utility
VacFlush adaptor for submersible pumps
7 Jun 22
Wastewater treatment systems are disclosed.
Kenneth L. Norcross
Filed: 18 Jun 20
Utility
Treatment of high peroxide waste streams
17 May 22
A method of reducing a concentration of hydrogen peroxide from wastewater includes diluting the wastewater with water having a lower concentration of hydrogen peroxide than the wastewater to produce a diluted wastewater, contacting the diluted wastewater with a dissolved iron compound at an acidic pH to form a partially treated wastewater having a lower concentration of hydrogen peroxide than the diluted wastewater, and precipitating iron solids from the partially treated wastewater by raising a pH of the partially treated wastewater to form a neutralized partially treated wastewater.
Frank L. Sassaman, Jr., David L. Berger, Stanley R. Karrs
Filed: 25 May 17
Utility
Electrical discharge cell for generating ozone
15 Feb 22
An electrical discharge ozone generation cell has first and second electrode base plates which are separated by a nonconductive flat spacer plate.
Philip Tinsley Dempster
Filed: 21 Oct 19
Utility
Removing heavy metals in a ballasted process
8 Feb 22
A system for treating metal-contaminated wastewater includes a primary treatment sub-system, a secondary treatment sub-system, and a tertiary treatment sub-system.
Rohan Wikramanayake, Raymond G. Pepin, Thomas Miles
Filed: 5 Jun 17
Utility
Off-line electronic documentation solutions
11 Jan 22
A portable electronic device comprises a camera, a display screen, and a processor configured to identify a piece of equipment from one of an image of the piece of equipment or of a fiducial marker associated with the piece of equipment captured by the camera, display a header page associated with the piece of equipment on the display screen responsive to identifying the piece of equipment, the header page including options for accessing different types of documentation associated with the piece of equipment, receive an indication from a user of a type of documentation to access, and responsive to receiving the indication of the type of documentation to access, retrieve the documentation from a local memory of the portable electronic device, and display the documentation on the display screen.
Hillary Phillip Whigham, Patrick Harden
Filed: 26 Nov 18
Utility
Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process
28 Dec 21
A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed.
Yongheng Huang, Michael Wismer, Lew Andrew Reyes, Xiangyi Qiao, Simon Dukes, Frank Sassaman, David Berger
Filed: 31 Jul 19
Utility
Method for the treatment of wastewater
14 Dec 21
A system and method for backwashing a sand filter in a wastewater treatment system.
Gerard Willem Smiddy, Frank Leslie Smiddy
Filed: 12 Mar 19
Utility
Method for the treatment of wastewater
7 Dec 21
A system and method for backwashing a sand filter in a wastewater treatment system.
Gerard Willem Smiddy, Frank Leslie Smiddy
Filed: 24 Dec 18
Utility
Advanced oxidation process for ex-situ groundwater remediation
2 Nov 21
Methods of treating contaminated groundwater having recalcitrant organic contaminants are disclosed.
Jonathan H Wood, Sevang Doung
Filed: 15 Mar 19
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
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
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
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
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
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