Battelle Memorial Institute

John F McBride

Fred J Brockman

Glendon W Gee

James K Fredrickson

Randy R Kirkham

Gary P Streile

John W Cry

John W Cary

Carver S Simmons

Methods are provided for remediating subsurface areas contaminated by toxic organic compounds. An innocuous oil, such as vegetable oil, mineral oil, or other immiscible organic liquid, is introduced into the contaminated area and permitted to move therethrough. The oil concentrates or strips the organic contaminants, such that the concentration of the contaminants is reduced and such contaminants are available to be either pumped out of the subsurface area or metabolized by microorganisms. Microorganisms may be introduced into the contaminated area to effect bioremediation of the contamination. The methods may be adapted to deliver microorganisms, enzymes, nutrients and electron donors to subsurface zones contaminated by nitrate in order to stimulate or enhance denitrification.

Enhancement of in situ microbial remediation of aquifers

Oil is detected in the presence of water by placing a translucent, porous body of hydrophobic material in contact with the oil and water and detecting the amount by which light incident on the body is attenuated on propagation through the body.

Method and apparatus for selectively detecting one of two immiscible

Growing community of inventors

Richland, WA, United States of America

John F McBride