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Title: In situ removal of contamination from soil

A process of remediation of cationic heavy metal contamination from soil utilizes gas phase manipulation to inhibit biodegradation of a chelating agent that is used in an electrokinesis process to remove the contamination. The process also uses further gas phase manipulation to stimulate biodegradation of the chelating agent after the contamination has been removed. The process ensures that the chelating agent is not attacked by bioorganisms in the soil prior to removal of the contamination, and that the chelating agent does not remain as a new contaminant after the process is completed. 5 figs.
Authors:
;
Publication Date:
OSTI Identifier:
541743
Report Number(s):
US 5,676,819/A/
PAN: US patent application 8-636,613
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 Oct 1997
Research Org:
Sandia Corporation
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BIODEGRADATION; REMEDIAL ACTION; METALS; TECHNOLOGY ASSESSMENT; IN-SITU PROCESSING; SOILS; CHELATING AGENTS; CATIONS; PHASE STUDIES