An experimental study on the inhibitory effect of high concentration bicarbonate on the reduction of U(VI) in groundwater by functionalized indigenous microbial communities

作者：Li, Dianxin; Hu, Nan; Ding, Dexin^*; Li, Shimi; Li, Guangyue; Wang, Yongdong

来源：Journal of Radioanalytical and Nuclear Chemistry, 2016, 307(2): 1011-1019.

DOI：10.1007/s10967-015-4427-4

• Bioremediation
• Bicarbonate inhibition
• Anoxic condition
• Lactate biostimulation
• Miseq sequencing
• XANES

The anaerobic microcosms amended with 30 mM bicarbonate and without bicarbonate were established, respectively, and the reduction of U(VI) in the microcosms by functionalized indigenous microbial communities was investigated. Results of the chemical extraction and XANES analysis showed that the proportions of U(IV) in the microcosms amended with bicarbonate were 10 % lower than without bicarbonate at day 46. The amount of Cellulomonadaceae, Desulfovibrionaceae, Peptococcaceae and Veillonellaceae amended with bicarbonate was lower than without bicarbonate, so the reduction of U(VI) was less. The experimental results show that the high concentration bicarbonate has a significantly inhibitory effect on the reduction of U(VI).

• 出版日期2016-2
• 单位南华大学