skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Control of biologically active degradation zones by vertical heterogeneity: Applications in fractured media. 1998 annual progress report

Abstract

'The objective of this research is to determine the relationship between biologically active contaminant degradation zones in a fractured, subsurface medium and vertical geological heterogeneities. The research is being performed on samples collected from the Test Area North (TAN) site at the Idaho National Engineering and Environmental Laboratory (INEEL) where a dissolved trichloroethylene (TCE) plume is migrating in the basalts and interbed sediments of the Eastern Snake River Plain (ESRP) aquifer. Results are leading to an enhanced understanding of the constraints placed on the activities and distribution of TCE-degrading organisms by the geochemical and hydrological environment. This understanding allows better decisions to be made regarding the use of remedial technologies such as natural attenuation and in-situ bioremediation at geologically complex waste sites. Through this research, investigations conducted by the DOE Subsurface Science Program at TAN have been extended in order to develop a mechanistic understanding of the coupled geomicrobial and hydrogeochemical processes that are necessary to predict field-scale intrinsic degradation rates of TCE. The research objective is being accomplished by characterizing paired cores and water samples from boreholes located in differing geochemical and flow environments within the plume. Analysis of these samples will allow the determination of the spatial correlationmore » between microbial degradation and preferred flow paths for the contaminant and required electron donors and acceptors. A combination of traditional microbiological methods (e.g., enrichments) and molecular tools are being used to characterize the indigenous microbial communities. This report summarizes work conducted after 1.5 years of a three year project.'« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lockheed Martin Idaho Technology Corp., Idaho National Engineering and Environmental Lab., Idaho Falls, ID (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM), Office of Science and Risk Policy
OSTI Identifier:
13702
Report Number(s):
EMSP-55416-98
ON: DE00013702
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
55; 54; Progress Report; Microorganisms; Environmental Transport; Remedial Action; PROGRESS REPORT; MICROORGANISMS; ENVIRONMENTAL TRANSPORT; REMEDIAL ACTION

Citation Formats

Colwell, F S, Smith, R, McKinley, J P, Fredrickson, J K, Onstott, T C, and Reysenbach, A L. Control of biologically active degradation zones by vertical heterogeneity: Applications in fractured media. 1998 annual progress report. United States: N. p., 1998. Web. doi:10.2172/13702.
Colwell, F S, Smith, R, McKinley, J P, Fredrickson, J K, Onstott, T C, & Reysenbach, A L. Control of biologically active degradation zones by vertical heterogeneity: Applications in fractured media. 1998 annual progress report. United States. https://doi.org/10.2172/13702
Colwell, F S, Smith, R, McKinley, J P, Fredrickson, J K, Onstott, T C, and Reysenbach, A L. 1998. "Control of biologically active degradation zones by vertical heterogeneity: Applications in fractured media. 1998 annual progress report". United States. https://doi.org/10.2172/13702. https://www.osti.gov/servlets/purl/13702.
@article{osti_13702,
title = {Control of biologically active degradation zones by vertical heterogeneity: Applications in fractured media. 1998 annual progress report},
author = {Colwell, F S and Smith, R and McKinley, J P and Fredrickson, J K and Onstott, T C and Reysenbach, A L},
abstractNote = {'The objective of this research is to determine the relationship between biologically active contaminant degradation zones in a fractured, subsurface medium and vertical geological heterogeneities. The research is being performed on samples collected from the Test Area North (TAN) site at the Idaho National Engineering and Environmental Laboratory (INEEL) where a dissolved trichloroethylene (TCE) plume is migrating in the basalts and interbed sediments of the Eastern Snake River Plain (ESRP) aquifer. Results are leading to an enhanced understanding of the constraints placed on the activities and distribution of TCE-degrading organisms by the geochemical and hydrological environment. This understanding allows better decisions to be made regarding the use of remedial technologies such as natural attenuation and in-situ bioremediation at geologically complex waste sites. Through this research, investigations conducted by the DOE Subsurface Science Program at TAN have been extended in order to develop a mechanistic understanding of the coupled geomicrobial and hydrogeochemical processes that are necessary to predict field-scale intrinsic degradation rates of TCE. The research objective is being accomplished by characterizing paired cores and water samples from boreholes located in differing geochemical and flow environments within the plume. Analysis of these samples will allow the determination of the spatial correlation between microbial degradation and preferred flow paths for the contaminant and required electron donors and acceptors. A combination of traditional microbiological methods (e.g., enrichments) and molecular tools are being used to characterize the indigenous microbial communities. This report summarizes work conducted after 1.5 years of a three year project.'},
doi = {10.2172/13702},
url = {https://www.osti.gov/biblio/13702}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 01 00:00:00 EDT 1998},
month = {Mon Jun 01 00:00:00 EDT 1998}
}