Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment

Huang Wen Huang, Bea Ven Chang, Ching Chang Lee

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalInternational Biodeterioration and Biodegradation
Volume87
DOIs
Publication statusPublished - 2014 Feb

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Biomaterials
  • Waste Management and Disposal

Fingerprint

Dive into the research topics of 'Reductive debromination of decabromodiphenyl ether by anaerobic microbes from river sediment'. Together they form a unique fingerprint.

Cite this