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JV Task 3 - Gas Industry Groundwater Research Program.

DE2004824956

Publication Date	2000
Personal Author	Sorensen, J. A.; Gallagher, J. R.; Hawthorne, S. B.; Aulich, T. R.
Page Count	84
Abstract	The objective of the research described in this report was to provide data and insights that will enable the natural gas industry to (1) significantly improve the assessment of subsurface glycol-related contamination at sites where it is known or suspected to have occurred and (2) make scientifically valid decisions concerning the management and/or remediation of that contamination. The described research was focused on subsurface transport and fate issues related to triethylene glycol (TEG), diethylene glycol (DEG), and ethylene glycol (EG). TEG and DEG were selected for examination because they are used in a vast majority of gas dehydration units, and EG was chosen because it is currently under regulatory scrutiny as a drinking water pollutant. Because benzene, toluene, ethylbenzene, and xylenes (collectively referred to as BTEX) compounds are often very closely associated with glycols used in dehydration processes, the research necessarily included assessing cocontaminant effects on waste mobility and biodegradation. BTEX hydrocarbons are relatively water-soluble and, because of their toxicity, are of regulatory concern. Although numerous studies have investigated the fate of BTEX, and significant evidence exists to indicate the potential biodegradability of BTEX in both aerobic and anaerobic environments (Kazumi and others, 1997; Krumholz and others, 1996; Lovely and others, 1995; Gibson and Subramanian, 1984), relatively few investigations have convincingly demonstrated in situ biodegradation of these hydrocarbons (Gieg and others, 1999), and less work has been done on investigating the fate of BTEX species in combination with miscible glycols.
Keywords	Ground water Natural gas industry Attenuation Benzene Biodegradation Contamination Dehydration Glycols Hydrocarbons Organic matter Research programs Soils Toluene Toxicity Wastes Wetlands Xylenes Drinking water
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	North Dakota Univ., Grand Forks. Energy and Environmental Research Center.; Department of Energy, Washington, DC.; National Energy Technology Lab., Pittsburgh, PA.
Supplemental Notes	Sponsored by National Energy Technology Lab., Pittsburgh, PA. and Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508

JV Task 3 - Gas Industry Groundwater Research Program.

JV Task 3 - Gas Industry Groundwater Research Program.
DE2004824956

Publication Date	2000
Personal Author	Sorensen, J. A.; Gallagher, J. R.; Hawthorne, S. B.; Aulich, T. R.
Page Count	84
Abstract	The objective of the research described in this report was to provide data and insights that will enable the natural gas industry to (1) significantly improve the assessment of subsurface glycol-related contamination at sites where it is known or suspected to have occurred and (2) make scientifically valid decisions concerning the management and/or remediation of that contamination. The described research was focused on subsurface transport and fate issues related to triethylene glycol (TEG), diethylene glycol (DEG), and ethylene glycol (EG). TEG and DEG were selected for examination because they are used in a vast majority of gas dehydration units, and EG was chosen because it is currently under regulatory scrutiny as a drinking water pollutant. Because benzene, toluene, ethylbenzene, and xylenes (collectively referred to as BTEX) compounds are often very closely associated with glycols used in dehydration processes, the research necessarily included assessing cocontaminant effects on waste mobility and biodegradation. BTEX hydrocarbons are relatively water-soluble and, because of their toxicity, are of regulatory concern. Although numerous studies have investigated the fate of BTEX, and significant evidence exists to indicate the potential biodegradability of BTEX in both aerobic and anaerobic environments (Kazumi and others, 1997; Krumholz and others, 1996; Lovely and others, 1995; Gibson and Subramanian, 1984), relatively few investigations have convincingly demonstrated in situ biodegradation of these hydrocarbons (Gieg and others, 1999), and less work has been done on investigating the fate of BTEX species in combination with miscible glycols.
Keywords	Ground water Natural gas industry Attenuation Benzene Biodegradation Contamination Dehydration Glycols Hydrocarbons Organic matter Research programs Soils Toluene Toxicity Wastes Wetlands Xylenes Drinking water
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	North Dakota Univ., Grand Forks. Energy and Environmental Research Center.; Department of Energy, Washington, DC.; National Energy Technology Lab., Pittsburgh, PA.
Supplemental Notes	Sponsored by National Energy Technology Lab., Pittsburgh, PA. and Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508