History and Ecology of Chloroethene Biodegradation: A Review
نویسنده
چکیده
Biodegradation of chloroethene compounds has been a matter of intense scientific investigation since these compounds were first identified in the late 1970s as common contaminants in groundwater systems. Over this period, perspectives on chloroethene biodegradation and on the role of organochlorine compounds in the environment have changed substantially. Before 1980, chloroethene contaminants were considered recalcitrant to biodegradation. Today, biodegradation is viewed as an essential component of chloroethene plume remediation and several microbial mechanisms for chloroethene transformation have been identified. The purpose of this review is to place these shifting perspectives within historical and ecological contexts, summarize the recent advances in the scientific understanding of reductive and oxidative biodegradation mechanisms, and identify critical needs affecting the application of in situ chloroethene biodegradation to groundwater remediation.
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