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Title: Enhancement of in situ microbial remediation of aquifers

Abstract

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.

Inventors:
 [1];  [1];  [2];  [2];  [3]
  1. (Kennewick, WA)
  2. (both or Richland, WA)
  3. (Carrboro, NC)
Issue Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
869035
Patent Number(s):
5265674
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
enhancement; situ; microbial; remediation; aquifers; methods; provided; remediating; subsurface; contaminated; toxic; organic; compounds; innocuous; oil; vegetable; mineral; immiscible; liquid; introduced; permitted; move; therethrough; concentrates; strips; contaminants; concentration; reduced; available; pumped; metabolized; microorganisms; effect; bioremediation; contamination; adapted; deliver; enzymes; nutrients; electron; donors; zones; nitrate; stimulate; enhance; denitrification; mineral oil; situ microbial; organic contaminant; organic compound; organic compounds; organic liquid; organic contaminants; electron donor; surface zone; toxic organic; microbial remediation; deliver microorganisms; immiscible organic; subsurface zones; /166/

Citation Formats

Fredrickson, James K., Brockman, Fred J., Streile, Gary P., Cary, John W., and McBride, John F. Enhancement of in situ microbial remediation of aquifers. United States: N. p., 1993. Web.
Fredrickson, James K., Brockman, Fred J., Streile, Gary P., Cary, John W., & McBride, John F. Enhancement of in situ microbial remediation of aquifers. United States.
Fredrickson, James K., Brockman, Fred J., Streile, Gary P., Cary, John W., and McBride, John F. Fri . "Enhancement of in situ microbial remediation of aquifers". United States. https://www.osti.gov/servlets/purl/869035.
@article{osti_869035,
title = {Enhancement of in situ microbial remediation of aquifers},
author = {Fredrickson, James K. and Brockman, Fred J. and Streile, Gary P. and Cary, John W. and McBride, John F.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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