Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment

Huang Wen Huang, Bea Ven Chang, Ching Chang Lee

研究成果: Article同行評審

59 引文 斯高帕斯(Scopus)

摘要

Polybrominated diphenyl ethers (PBDEs) are emerging persistent organic pollutants and have consequently drawn much environmental concern. The objective of this study was to evaluate reductive debromination of decabromodiphenyl ether (BDE-209) by anaerobic microbes from river sediment under various conditions. The debromination rates for BDE-209 were enhanced by the addition of brij 30, brij 35, rhamnolipid, surfactin, vitamin B12, zero-valent iron, acetate, lactate, and pyruvate. Zero-valent iron yielded the highest BDE-209 debromination. For the various PBDE congeners, the high-to-low order of debromination rates in sediment was BDE-209>BDE-99>BDE-47>BDE-28>BDE-15. The intermediate products resulting from the reductive debromination of BDE-209 in sediment were nona-BDE (BDE-207), octa-BDEs (BDE-196, 197), hepta-BDEs (BDE-183, 184, 191), hexa-BDEs (BDE-138, 154), penta-BDEs (BDE-85, 99, 100, 119), tetra-BDEs (BDE-47, 49, 66, 71), tri-BDEs (BDE-17, 28), di-BDEs (BDE-7, 15), and mono-BDE (BDE-3). Our result shows BDE-209 can be debrominated successively to BDE-3 by anaerobic microbes from river sediment. This research offers feasible methods for removal of BDE-209 in river sediment for bioremediation.

原文English
頁(從 - 到)60-65
頁數6
期刊International Biodeterioration and Biodegradation
87
DOIs
出版狀態Published - 2014 二月

All Science Journal Classification (ASJC) codes

  • 微生物學
  • 生物材料
  • 廢物管理和處置

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