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Natural Dissipation of Chlorinated Volatile Organic Compounds Released in Soil : Effect of Moisture Content and Carbon Source  

Cho Chang-Hwan (Environmental Management Corporation)
Choi Sang-Il (Department of Environmental Engineering, Kwangwoon University)
Publication Information
Journal of Soil and Groundwater Environment / v.10, no.3, 2005 , pp. 46-51 More about this Journal
Abstract
This study was to evaluate sorption and biodegradation rate affecting the natural dissipation of chlorinated volatile organic compounds (CVOCs) in surface soil. To show the effect of sorption and biodegradation on the natural dissipation of 1,1,1-trichloroethane (TCA), trichloroethylene (TCE) and tetrachloroethylene (PCE), three types of vial experiments were employed; (1) sterilized, (2) non-sterilized, (3) non-sterilized/substrate enriched. Also three moisture contents was applied to find the moisture effect in each vial; (1) wilting point (12%, w/w), (2) field capacity (29%, w/w), (3) saturation (48%, w/w). The results suggested that keeping the soil moisture content at field capacity was desirable for TCA and TCE natural dissipation in the vial study.
Keywords
Chlorinated volatile organic compounds; Sorption; Biodegradation; Natural dissipation; Moisture content;
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