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Microbial treatment of soil to remove pentachlorophenol.
1School of Chemical Engineering, Cornell University, Ithaca, New York 14853-0294.
Applied and Environmental Microbiology
|March 1, 1983
Summary
Introducing pentachlorophenol (PCP)-degrading bacteria into contaminated soil offers a rapid cleanup solution. This bioremediation method significantly reduces PCP
Area of Science:
- Environmental microbiology
- Bioremediation
- Environmental chemistry
Background:
- Pentachlorophenol (PCP) is a persistent organic pollutant used in wood preservatives.
- PCP contamination poses risks to aquatic ecosystems through soil runoffs.
- Effective remediation strategies are needed to mitigate PCP hazards.
Purpose of the Study:
- To evaluate the efficacy of direct bacterial inoculation for PCP-contaminated soil remediation.
- To assess the potential of PCP-degrading bacteria as a prophylactic measure against environmental contamination.
Main Methods:
- Laboratory experiments at 30°C involving direct inoculation of PCP-utilizing Arthrobacter into contaminated soil.
- Field tests conducted in an outdoor shed to assess PCP disappearance rates.
Main Results:
- Direct inoculation of Arthrobacter reduced soil PCP half-life from 2 weeks to less than 1 day in laboratory tests.
- Soil inoculation effectively accelerated PCP disappearance in outdoor field tests.
Conclusions:
- Direct bacterial inoculation is a highly effective method for rapid remediation of PCP-contaminated soil.
- This bioremediation approach offers a promising prophylactic strategy to prevent environmental pollution from PCP.