Microbial dechlorination of HCB, PCP, PCB180, HCH and PCE in a Yangtze Three Gorges Reservoir enrichment culture, China

  • Irene Kranzioch-Seipel
  • Ulrike Beckert
  • Chaofeng Shen
  • Daqiang Yin
  • Andreas Tiehm
Thematic Issue
Part of the following topical collections:
  1. Environmental Research of the Three Gorges Reservoir


Highly chlorinated pollutants are often found in river sediments, such as in the Yangtze River. In this study, the transformation of hexachlorobenzene, pentachlorophenol, polychlorinated biphenyl (PCB), hexachlorocyclohexane and perchloroethene was demonstrated in a mixed microbial culture enriched from Xiangxi River sediment [a tributary of Yangtze River belonging to the Three Gorges Reservoir (TGR)] which contained halo-respiring bacteria. Reductive dehalogenation by the Yangtze bacteria resulted in the formation of lower chlorinated metabolites, such as tri- and dichlorobenzenes, tri- and dichlorophenols, vinyl chloride and ethene. In case of PCB180, the lesser chlorinated metabolite PCB146 was detected and is recommended for future monitoring programs. Increased gene copy numbers of dechlorinating bacteria, e.g. Dehalococcoides spp. and Desulfitobacterium spp., were observed after the transformation of the chlorinated pollutants. In conclusion, the study demonstrates the capability of Yangtze River bacteria to dechlorinate several important chlorinated pollutants, indicating efficient pollutant turnover in the TGR area.


Chlorinated pollutants Three Gorges Reservoir Metabolites PCB146 Reductive dechlorination Yangtze 



The authors gratefully acknowledge the financial support of the German Ministry of Education and Research (BMBF, Grant No. 02WT1130). This study was part of the Sino-German Yangtze-Hydro Project.

Supplementary material

12665_2016_5653_MOESM1_ESM.docx (613 kb)
Supplementary material 1 (DOCX 612 kb)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Irene Kranzioch-Seipel
    • 1
  • Ulrike Beckert
    • 1
  • Chaofeng Shen
    • 2
  • Daqiang Yin
    • 3
  • Andreas Tiehm
    • 1
  1. 1.Department Microbiology and Molecular BiologyDVGW-Technologiezentrum Wasser (TZW)KarlsruheGermany
  2. 2.Department of Environmental Engineering, College of Environmental and Resource SciencesZhejiang UniversityHangzhouPeople’s Republic of China
  3. 3.Department of Environmental Science, College of Environmental Science and EngineeringTongji UniversityShanghaiPeople’s Republic of China

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