Reductive dechlorination of pentachlorophenol by enrichments from municipal digester sludge

Conference · Sat Dec 30 23:00:00 EST 1995

OSTI ID:474265

Magar, V S; Mohn, H; Stensel, H D; Ferguson, J F ^[1]; Puhakka, J A ^[2]

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1. Univ. of Washington, Seattle, WA (United States). Dept. of Civil Engineering
2. Tampere Univ. of Technology (Finland)

Ten anaerobic digester sludges from municipal plants showed variable abilities for anaerobic dehalogenation of pentachlorophenol (PCP) and monochlorophenols (MCPs) in batch serum bottle tests. Acclimation for PCP dehalogenation was affected by sludge dilution and initial PCP concentration. During long-term bench-scale digester operation the PCP dehalogenation pathways changed, producing different end products including the loss of phenol production. Complete dechlorination of PCP was achieved in a continuously fed fluidized-bed reactor (FBR) and in serum bottles after combining PCP-to-3-MCP-dechlorinating and 3-MCP-dechlorinating enrichments.

• OSTI ID: 474265
• Report Number(s): CONF-950483--; ISBN 1-57477-005-5
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ANAEROBIC CONDITIONS
BENCH-SCALE EXPERIMENTS
BIODEGRADATION
CHLORINATED AROMATIC HYDROCARBONS
IN-SITU PROCESSING
MUNICIPAL WASTES
REMEDIAL ACTION
SEWAGE SLUDGE