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- Title
Effect of soil moisture on bioremediation of chlorophenol-contaminated soil.
- Authors
Cho, Young-Gyun; Rhee, Sung-Keun; Lee, Sung-Taik
- Abstract
A chlorophenol-contaminated soil was tested for the biodegradability in a semi-pilot scale microcosm using indigenous microorganisms. More than 90% of 4-chlorophenol and 2,4,6-trichlorophenol, initially at 30 mg kg-1, were removed within 60 days and 30 mg pentachlorophenol kg-1 was completely degraded within 140 days. The chlorophenols were degraded more effectively under aerobic condition than under anaerobic condition. Soil moisture had a significant effect with the slowest degradation rate of chlorophenols at 25% in the range of 10–40% moisture content. At 25–40%, the rate of chlorophenol degradation was directly related to the soil moisture content, whereas at 10–25%, it was inversely related. Limited oxygen availability through soil agglomeration at 25% moisture content might decrease the degradation rate of chlorophenols.
- Subjects
SOIL moisture; SOIL infiltration; MOISTURE; ORGANOCHLORINE compounds; BIOREMEDIATION; PHENOLS
- Publication
Biotechnology Letters, 2000, Vol 22, Issue 11, p915
- ISSN
0141-5492
- Publication type
Article
- DOI
10.1023/A:1005612232079