RAJAT SUBHRA GHOSH
Engineers in Murrysville, PA
License number
Pennsylvania PE061845
Category
Engineers
Type
Professional Engineer
Address
Address
Murrysville, PA 15668
Professional information
Wastewater Treatment System And Method For Removal Of Contaminants Via Mixed Metal Oxide Beds
US Patent:
2011030, Dec 15, 2011
Filed:
Jun 14, 2011
Appl. No.:
13/159683
Inventors:
Shannon L. Isovitsch Parks - Sarver PA, US
David Iwig - Greensburg PA, US
John R. Smith - Pittsburgh PA, US
Jaw K. Fu - Murrysville PA, US
Rajat Ghosh - Murrysville PA, US
David Iwig - Greensburg PA, US
John R. Smith - Pittsburgh PA, US
Jaw K. Fu - Murrysville PA, US
Rajat Ghosh - Murrysville PA, US
Assignee:
ALCOA INC. - Pittsburgh PA
International Classification:
C02F 1/42, C02F 1/28
US Classification:
210663, 210220
Abstract:
The instant disclosure relates to methods, systems, and apparatus for polishing wastewater (i.e. non-potable water) using filtration media. More particularly, the instant disclosure relates to wastewater polishing using a bed of mixed metal oxides under certain operating conditions to remove a plurality of contaminants from a wastewater stream.
Systems And Methods For Treating Water Using Iron
US Patent:
2012016, Jun 28, 2012
Filed:
Feb 29, 2012
Appl. No.:
13/408498
Inventors:
Rajat S. Ghosh - Murrysville PA, US
Dennis Fulmer - Greensburg PA, US
Kevin Kitzman - Wanatchee WA, US
John Smith - Pittsburgh PA, US
Dennis Fulmer - Greensburg PA, US
Kevin Kitzman - Wanatchee WA, US
John Smith - Pittsburgh PA, US
Assignee:
Alcoa Inc. - Pittsburgh PA
International Classification:
C02F 1/70
US Classification:
210252
Abstract:
Systems and associated methods for treating contaminant-containing wastewater are provided. The systems generally include a reducing zone for reducing the oxidation-reduction potential of the water and a clean-up zone comprising zero valent iron for removing at least a portion of the contaminant from the contaminant-containing water. The systems are operable to remove one or more contaminants from the contaminant-containing water and are operable for extended durations without clogging due to the formation of iron hydroxides.
Systems For Treating Water Using Iron
US Patent:
8157995, Apr 17, 2012
Filed:
Jan 27, 2011
Appl. No.:
13/014940
Inventors:
Rajat S. Ghosh - Murrysville PA, US
Dennis Fulmer - Greensburg PA, US
Kevin Kitzman - Wanatchee WA, US
John Smith - Pittsburgh PA, US
Dennis Fulmer - Greensburg PA, US
Kevin Kitzman - Wanatchee WA, US
John Smith - Pittsburgh PA, US
Assignee:
Alcoa Inc. - Pittsburgh PA
International Classification:
C02F 1/52, C02F 1/58, C02F 1/70
US Classification:
210199, 210202, 210203, 210205, 210284
Abstract:
Systems and associated methods for treating contaminant-containing wastewater are provided. The systems generally include a reducing zone for reducing the oxidation-reduction potential of the water and a clean-up zone comprising zero valent iron for removing at least a portion of the contaminant from the contaminant-containing water. The systems are operable to remove one or more contaminants from the contaminant-containing water and are operable for extended durations without clogging due to the formation of iron hydroxides.