Microbial degradation of nitrogen, oxygen, and sulfur heterocyclic compounds under anaerobic conditions: Studies with aquifer samples
The potential for anaerobic biodegradation of 12 heterocyclic model compounds was studied. Nine of the model compounds were biotransformed in aquifer slurries under sulfate-reducing or methanogenic conditions. The nitrogen and oxygen heterocyclic compounds were more susceptible to anaerobic biodegradation than those compounds containing a sulfur deteroatom. In contrast, only small amounts of methane were detected in aquifer slurries amended with compounds containing an oxygen heteroatom, even though a decrease in the parent substrate concentration occurred. Pyridine, 2-picoline and 4-picoline were biotransformed within three months under sulfate-reducing conditions. However, longer incubation times were required for the degradation of these substrates in methanogenic aquifer slurries. A literature survey reveals the widespread contamination of ground waters with heterocyclic compounds from waste management practice and fossil-fuel-related industries.
- Research Organization:
- Oklahoma Univ., Norman, OK (USA). Dept. of Botany and Microbiology
- OSTI ID:
- 6749704
- Report Number(s):
- PB-90-216276/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKANES
ANAEROBIC CONDITIONS
AQUIFERS
BACTERIA
BIODEGRADATION
CHEMICAL REACTIONS
CLEANING
DECOMPOSITION
DECONTAMINATION
ENVIRONMENTAL TRANSPORT
GROUND WATER
HAZARDOUS MATERIALS
HETEROCYCLIC COMPOUNDS
HETEROCYCLIC OXYGEN COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
LAND POLLUTION
MANAGEMENT
MASS TRANSFER
MATERIALS
METHANE
METHANOGENIC BACTERIA
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
SULFATE-REDUCING BACTERIA
WASTE MANAGEMENT
WASTES
WATER
WATER POLLUTION