Treatment of simulated wastewater from in situ leaching uranium mining by zerovalent iron and sulfate reducing bacteria

摘要：

Batch and column experiments were conducted to determine whether zerovalent iron (ZVI) and sulfate reducing bacteria (SRB) can function synergistically and accelerate pollutant removal. Batch experiments suggest that combining ZVI with SRB can enhance the removal of U(VI) synergistically. The removal rate of U(VI) in the ZVI+SRB combining system is obviously higher than the total rate of ZVI system and SRB system with a difference of 13.4% at t=2 h and 29.9% at t=4 h. Column experiments indicate that the reactor filled with both ZVI and SRB biofilms is of better performance than the SRB bioreactor in wastewater basification, desulfurization and U(VI)fixation. The results imply that the ZVI+SRB permeable reactive barrier may be a promising method for treating subsurface uranium contamination.

关键词： zerovalent iron (ZVI) sulfate reducing bacteria (SRB) uranium sulfate wastewater basification

作者: YI Zheng-ji LIAN Bin YANG Ying-qun ZOU Jian-ling

作者单位: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,Chinese Academy of Sci State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,Chinese Academy of Sci Key Laboratory of Functional Organometallic Materials of Hunan Province,Hengyang Normal University,H Key Laboratory of Functional Organometallic Materials of Hunan Province,Hengyang Normal University,

会议类型: 国际会议

会议名称: 2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)

会议地点: 长沙

会议语种:英文

页码: 840-844

在线出版日期: 2009-11-22（万方平台首次上网日期，不代表论文的发表时间）