Influence of alternative electron acceptors on the anaerobic biodegradability of chlorinated phenols and benzoic acids
Nitrate, sulfate, and carbonate were used as electron acceptors to examine the anaerobic biodegradability of chlorinated aromatic compounds in estuarine and freshwater sediments. The respective denitrifying, sulfidogenic, and methanogenic enrichment cultures were established on each of the monochlorinated phenol and monochlorinated benzoic acid isomers, using sediment from the upper (freshwater) and lower (estuarine) Hudson River and the East River (estuarine) as source materials. Utilization of each chlorophenol and chlorobenzoate isomer was observed under at least one reducing condition; however, no single reducing condition permitted the metabolism of all six compounds tested. The anaerobic biodegradation of the chlorophenols and chlorobenzoates depended on the electron acceptor available and on the position of the chlorine substituent. In general, similar activities were observed under the different reducing conditions in both the freshwater and estuarine sediments.
- Research Organization:
- New York Univ., NY (United States). Medical Center
- OSTI ID:
- 6058358
- Report Number(s):
- PB-93-222784/XAB; CNN: EPA-R-814611
- Country of Publication:
- United States
- Language:
- English
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Influence of alternative electron acceptors on the anaerobic biodegradability of chlorinated phenols and benzoic acids
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Related Subjects
400200 -- Inorganic
Organic
& Physical Chemistry
54 ENVIRONMENTAL SCIENCES
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
550200* -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ANAEROBIC DIGESTION
AROMATICS
BACTERIA
BENZOIC ACID
BIOCONVERSION
BIODEGRADATION
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACIDS
CHEMICAL EFFLUENTS
CHEMICAL REACTIONS
CHEMICAL WASTES
CHLORINATED AROMATIC HYDROCARBONS
CHLORINE COMPOUNDS
CONTROL
DECOMPOSITION
DIGESTION
ESTUARIES
HALOGEN COMPOUNDS
HALOGENATED AROMATIC HYDROCARBONS
HUDSON RIVER
HYDROXY COMPOUNDS
MANAGEMENT
METHANOGENIC BACTERIA
MICROORGANISMS
MONOCARBOXYLIC ACIDS
NITRATES
NITROGEN COMPOUNDS
NONRADIOACTIVE WASTES
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
POLLUTION CONTROL
PROCESSING
REDUCTION
RIVERS
SEDIMENTS
STREAMS
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER POLLUTION CONTROL