Microbial treatment of soil to remove pentachlorophenol.
Direct inoculation of bacteria capable of degrading pentachlorophenol (PCP) into PCP-contaminated soil was investigated as a prophylactic measure to reduce the hazards of runoffs when spills occur or when wooden poles freshly treated with PCP-containing preservatives are located near streams and lakes. In laboratory tests at 30 degrees C, the direct addition of 10 PCP-utilizing Arthrobacter cells per g of dry soil reduced the half-life of the pesticide from 2 weeks to <1 day. Soil inoculation also was shown to be an effective way to increase the PCP disappearance rate in a test conducted in an outdoor shed.
Edgehill
R U
RU
School of Chemical Engineering, Cornell University, Ithaca, New York 14853-0294.
Finn
R K
RK