Abstract
An anaerobic, Fe(III)-reducing enrichment culture, which originatedfrom a sediment sample collected at a landfill in Nanji-do, Seoul, Korea, was capable ofdegrading cis-1,2-dichloroethylene (cis-DCE) and vinylchloride (VC). Although it exhibited the ability under Fe(III)-reducing conditions, the chlorinated ethenes degradationwas not linked to the Fe(III) reduction. During cis-DCE degradation, no VC, ethene, or ethanewas detected through the experimental period. Also, this culture did not accumulate ethene andethane during the VC degradation. It was unlikely that cis-DCE was reductivelydechlorinated to VC and then the VC formed was dechlorinated fast enough. Because the kinetic datashowed that the rate of cis-DCE degradation was 3.5 times higher than that of VC. Whereasglucose supported the culture growth and the degradation, formate, acetate, butyrate, propionate,lactate, pyruvate, and yeast extract did not. The results appeared consistent with the involvement ofoxidative degradation mechanism rather than reductive dechlorination mechanism. The traits of the culturedescribed here are unusual in the anaerobic degradation of chlorinated ethenes and may be usefulfor searching an effective organism and mechanism regarding anaerobic cis-DCE and VC degradation.
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Hata, J., Takamizawa, K., Miyata, N. et al. Biodegradation of cis-1,2-Dichloroethylene and Vinyl Chloride in Anaerobic Cultures Enriched from Landfill Leachate Sediment Under Fe(III)-Reducing Conditions. Biodegradation 14, 275–283 (2003). https://doi.org/10.1023/A:1024742211094
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DOI: https://doi.org/10.1023/A:1024742211094