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Title: In situ thermally enhanced biodegradation of petroleum fuel hydrocarbons and halogenated organic solvents

Patent ·
OSTI ID:644364

An in situ thermally enhanced microbial remediation strategy and a method for the biodegradation of toxic petroleum fuel hydrocarbon and halogenated organic solvent contaminants are described. The method utilizes nonpathogenic, thermophilic bacteria for the thermal biodegradation of toxic and carcinogenic contaminants, such as benzene, toluene, ethylbenzene and xylenes, from fuel leaks and the chlorinated ethenes, such as trichloroethylene, chlorinated ethanes, such as 1,1,1-trichloroethane, and chlorinated methanes, such as chloroform, from past solvent cleaning practices. The method relies on and takes advantage of the pre-existing heated conditions and the array of delivery/recovery wells that are created and in place following primary subsurface contaminant volatilization efforts via thermal approaches, such as dynamic underground steam-electrical heating. 21 figs.

Research Organization:
Univ. of California (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
US 5,753,122/A/
Application Number:
PAN: 8-610,035; TRN: 98:007951
OSTI ID:
644364
Resource Relation:
Other Information: PBD: 19 May 1998
Country of Publication:
United States
Language:
English