Biodegradation of monoaromatic hydrocarbons in groundwater under denitrifying conditions

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Bulletin of Environmental Contamination and Toxicology; (United States)

DOI:https://doi.org/10.1007/BF01688645· OSTI ID:7206312

Gersberg, R M; Bradley, M D ^[1]; Dawsey, W J ^[2]

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1. San Diego State Univ., CA (United States)
2. San Diego Gas and Electric Co., CA (United States)

Indigenous subsurface bacteria can degrade a variety of fuel hydrocarbons, including the monoaromatic compounds benzene, toluene, and xylene (BTX), under favorable conditions. Enhanced in-situ biodegradation has received increasing attention for aquifer remediation. The use of denitrification, whereby nitrate (or nitrite) is used as an alternative electron acceptor to oxygen, represents an innovative remediation approach, since nitrate is a very soluble in water and can be easily distributed throughout an aquifer. However, to date, there have only been a few field-scale trials of in-situ bioremediation using denitrification. This report evaluates the effect of nutrients and organic amendments on BTX loss in gasoline-contaminated groundwater incubated anoxially under denitrifying conditions.

• OSTI ID: 7206312
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (United States), Journal Name: Bulletin of Environmental Contamination and Toxicology; (United States) Vol. 47:2; ISSN 0007-4861; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKYLATED AROMATICS
AQUIFERS
AROMATICS
BENZENE
BIODEGRADATION
CHEMICAL REACTIONS
CONTAMINATION
DECOMPOSITION
DENITRIFICATION
FUELS
GASOLINE
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID FUELS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
TOLUENE
WATER
XYLENES