The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Sep. 27, 2019
Applicant:
Tersus Environmental Llc, Wake Forest, NC (US);
Inventors:
David F. Alden, Scranton, PA (US);
Gary M. Birk, Wake Forest, NC (US);
Sangho Bang, Durham, NC (US);
Jeffrey H. Harwell, Norman, OK (US);
Bor Jier Shiau, Norman, OK (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09C 1/06 (2006.01); C02F 1/70 (2006.01); B09C 1/08 (2006.01); B01J 20/02 (2006.01); B01F 17/00 (2006.01); C02F 103/06 (2006.01);
U.S. Cl.
CPC ...
B09C 1/08 (2013.01); B01F 17/00 (2013.01); B01F 17/0057 (2013.01); B01J 20/0229 (2013.01); B01J 20/0285 (2013.01); C02F 1/705 (2013.01); C02F 2103/06 (2013.01);
Abstract
The present subject matter illustrates a method for accelerated in-situ chemical reduction of subsoil matter. The method comprises supplying a mixture comprising ferrous sulfide into soil pathways to biologically react with dissolved contaminates in the groundwater. Further, an organic hydrogen donor is supplied into the soil-pathways to produce anerobic-conditions to cause indigenous anaerobic bacteria to biodegrade residual concentrations of the contaminates.