Performance of anaerobic granules for degradation of pentachlorophenol

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

OSTI ID:6468401

Wu, Weimin ^[1]; Bhatnagar, L; Zeikus, J G ^[2]

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1. Michigan Biotechnology Inst., Lansing (United States)
2. Michigan State Univ., East Lansing (United States)

Pentachlorophenol (PCP), listed as a priority pollutant by the US EPA, is used for preservation of wood and wood products. This article examines the feasibility of the development of methanogenic granules with high dechlorinating activity and investigates the performance of the granules in treating wastewaters containing high PCP concentrations in a laboratory-scale upflow anaerobic sludge blanket (UASB) reactor. Acetate, propionate butyrate, and methanol were used as carbon sources for supporting the growth of anaerobic organisms involved in PCP dechlorination and phenol mineralization. The investigators found that stable anaerobic granules can be developed in the presence of toxic xenobiotics such as PCP, and that PCP-degrading granules may be an alternative for treating PCP-contaminated wastewaters, especially those with high COD contents. Metabolic pathways of reductive dechlorination of PCP is discussed.

• OSTI ID: 6468401
• Journal Information: Applied and Environmental Microbiology; (United States), Journal Name: Applied and Environmental Microbiology; (United States) Vol. 59:2; ISSN AEMIDF; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ALCOHOLS
ANAEROBIC CONDITIONS
AROMATICS
BACTERIA
BIODEGRADATION
BIOREACTORS
CARBON SOURCES
CHEMICAL REACTIONS
DECHLORINATION
DECOMPOSITION
DEHALOGENATION
GROUND WATER
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRY
LIQUID WASTES
METHANOL
MICROORGANISMS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOL
PHENOLS
WASTE WATER
WASTES
WATER
WOOD
WOOD PRODUCTS INDUSTRY
XENOBIOTICS