摘要
为同时处理酸法地浸矿山地下水中的SO_(4)^(2-)、NO_(3)^(-),采用经驯化的硫酸盐还原菌(SRB)和反硝化菌(DNB)在UASB生物反应器中处理模拟酸性地下水。研究表明,在25℃、pH=5.5、碳源充足的条件下,SRB和DNB能够协同处理模拟地浸矿山酸性地下水中的SO_(4)^(2-)、NO_(3)^(-),SO_(4)^(2-)的代谢率达80%,NO_(3)^(-)的代谢率达91%。本研究初步探索了向地浸含矿层注入混合菌群和复合碳源进行自然修复的可行性。
In order to synergistically treat SO_(4)^(2-) and NO_(3)^(-) in acid groundwater of in-situ leaching mine,domesticated sulfate reducing bacteria(SRB)and denitrifying bacteria(DNB)were used to treat simulated acid groundwater in UASB bioreator.The results show that SRB and DNB can synergistically treat SO_(4)^(2-) and NO_(3)^(-) in simulate acid in-situ leaching groundwater under the condition of 25 ℃,pH=5.5and sufficient carbon source,the metabolic rates of SO_(4)^(2-) and NO_(3)^(-) were 80%and 91%respectively.The feasibility of natural restoration by injecting mixed bacteria and composite carbon source into in-situ leaching ore-bearing layer was preliminarily explored.
作者
彭阳
周磊
徐乐昌
高洁
PENG Yang;ZHOU Lei;XU Lechang;GAO Jie(Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China)
出处
《铀矿冶》
CAS
2022年第2期177-181,共5页
Uranium Mining and Metallurgy
关键词
硫酸盐还原菌(SRB)
反硝化菌(DNB)
协同处理
地浸铀矿山
模拟酸性地下水
sulfate reducing bacteria(SRB)
denitrifying bacteria(DNB)
synergistic treatment
in-situ leaching uranium mine
simulate acid groundwater
