In situ removal of contamination from soil

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:871179

Lindgren, Eric R ^[1]; Brady, Patrick V ^[1]

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1. Albuquerque, NM

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, and 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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5676819
• OSTI ID: 871179
• Country of Publication: United States
• Language: English

Related Subjects

situ
removal
contamination
soil
process
remediation
cationic
heavy
metal
utilizes
gas
phase
manipulation
inhibit
biodegradation
chelating
agent
electrokinesis
remove
stimulate
removed
ensures
attacked
bioorganisms
prior
remain
contaminant
completed
metal contamination
heavy metal
gas phase
chelating agent
/205/204/588/