Influence of alternative electron acceptors on the anaerobic biodegradability of chlorinated phenols and benzoic acids

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Applied and Environmental Microbiology; (United States)

OSTI ID:6773432

Haeggblom, M M; Rivera, M D; Young, L Y ^[1]

---

1. New York Medical Center, NY (United States)

Methanogeneic conditions can promote the biodegradation of a number of halogenated aromatic compounds. This study, using sediments from freshwater and estuarine sites, is an evaluation of the anaerobic biodegradability of monochlorinated phenols and benzoic acids coupled to denitrification, sulfidogenesis, and methanogenesis. The results indicate that chlorinated phenols and benzoic acids are biodegradable under at least one set of anaerobic conditions. Metabolism depends both on the electron acceptor available and on the position of the chlorine substituent. Presence of alternative electron acceptors, nitrate, sulfate, and carbonate, can affect degradation rates and substrate specificities. Since contaminated sites usually have mixtures of wastes, bioremediation efforts may need to consider the activities of diverse anaerobic communities to carry out effective treatment of all components. 37 refs., 4 figs., 4 tabs.

• OSTI ID: 6773432
• Journal Information: Applied and Environmental Microbiology; (United States), Journal Name: Applied and Environmental Microbiology; (United States) Vol. 59:4; ISSN AEMIDF; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
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.
ANAEROBIC CONDITIONS
AROMATICS
BENZOIC ACID
BIODEGRADATION
BIOLOGICAL PATHWAYS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
CHLORINE
COMMUNITIES
DECOMPOSITION
DENITRIFICATION
ELEMENTS
ESTUARIES
FRESH WATER
HALOGENATED AROMATIC HYDROCARBONS
HALOGENS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
METABOLISM
MONOCARBOXYLIC ACIDS
NONMETALS
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
REMEDIAL ACTION
SEDIMENTS
SURFACE WATERS
WATER