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:
Aug. 21, 2001
Filed:
Jan. 29, 1999
Craig L. Eaker, Alta Loma, CA (US);
Randy S. Weidner, Thousand Oaks, CA (US);
Terry C. Sciarrotta, Rancho Santa Margarita, CA (US);
George M. Becker, Los Angeles, CA (US);
Southern California Edison Company, Rosemead, CA (US);
Abstract
A continuous process for removing organic contaminants from a subsurface formation. The process having the steps of: (a) treating the subsurface formation to mobilize the organic contaminants, such treating of the subsurface formation including withdrawing from the subsurface formation a liquid stream and a vapor stream, the liquid stream containing water, dissolved carbonaceous material and non-dissolved carbonaceous material, (b) separating the liquid stream into a first liquid stream component comprised substantially of water and soluble carbonaceous material and a second liquid stream component comprised substantially of non-soluble carbonaceous material, (c) testing the first liquid component stream to determine C,, where C,is the amount of carbonaceous material in the first liquid stream component produced per unit of time by the treating of the subsurface formation in step (a), (d) testing the second liquid stream component to determine C,, where C,is the amount of carbonaceous material in the second liquid stream component produced per unit of time by the treating of the subsurface formation in step (a), (e) testing the vapor stream to determine C,, where C,is the amount of carbonaceous material in the vapor stream produced per unit of time by the treating of the subsurface formation in (a), (f) determining C,, where C,is the quantity of carbonaceous materials in the vapor stream produced per unit of time by the treating of the subsurface formation in step (a), which is attributable to carbonaceous material in the subsurface formation other than the organic contaminants, (g) computing C,, where C,=C,+C,+C,−C,, and (h) controlling the treating of the subsurface formation in step (a) using C,.