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Title: Halogenated solvent remediation

Abstract

Methods for enhancing bioremediation of ground water contaminated with nonaqueous halogenated solvents are disclosed. A preferred method includes adding a composition to the ground water wherein the composition is an electron donor for microbe-mediated reductive dehalogenation of the halogenated solvents and enhances mass transfer of the halogenated solvents from residual source areas into the aqueous phase of the ground water. Illustrative compositions effective in these methods include surfactants such as C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, salts thereof, esters of C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, and mixtures thereof. Especially preferred compositions for use in these methods include lactic acid, salts of lactic acid, such as sodium lactate, lactate esters, and mixtures thereof. The microbes are either indigenous to the ground water, or such microbes can be added to the ground water in addition to the composition.

Inventors:
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175003
Patent Number(s):
6783678
Application Number:
09/895,430
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
DOE Contract Number:  
AC07-99ID13727
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Sorenson, Kent S. Halogenated solvent remediation. United States: N. p., 2004. Web.
Sorenson, Kent S. Halogenated solvent remediation. United States.
Sorenson, Kent S. Tue . "Halogenated solvent remediation". United States. https://www.osti.gov/servlets/purl/1175003.
@article{osti_1175003,
title = {Halogenated solvent remediation},
author = {Sorenson, Kent S.},
abstractNote = {Methods for enhancing bioremediation of ground water contaminated with nonaqueous halogenated solvents are disclosed. A preferred method includes adding a composition to the ground water wherein the composition is an electron donor for microbe-mediated reductive dehalogenation of the halogenated solvents and enhances mass transfer of the halogenated solvents from residual source areas into the aqueous phase of the ground water. Illustrative compositions effective in these methods include surfactants such as C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, salts thereof, esters of C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, and mixtures thereof. Especially preferred compositions for use in these methods include lactic acid, salts of lactic acid, such as sodium lactate, lactate esters, and mixtures thereof. The microbes are either indigenous to the ground water, or such microbes can be added to the ground water in addition to the composition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {8}
}

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Works referenced in this record:

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