Publications in International Journals / Series (Article (International))

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol

  • Atashgahi, Siavash; Lu, Yue; Zheng, Ying; Saccenti, Edoardo; Suarez-Diez, Maria; Ramiro-Garcia, Javier; Eisenmann, Heinrich; Elsner, Martin; Stams, Alfons J.M.; Springael, Dirk; Dejonghe, Winnie; Smidt, Hauke
  • Environmental Microbiology, 19(3), 968-981, 2017

Publisher: Wiley-Blackwell

Abstract

Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated with cis-dichloroethene (cDCE), and geochemical and microbial shifts were followed for 265 days. Consistent with anoxic conditions and sulfate reduction after biostimulation, MiSeq 16S rRNA gene sequencing revealed temporarily increased relative abundance of Firmicutes, Bacteriodetes and sulfate reducing Deltaproteobacteria. In line with 13C c ...

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