Bioremediation of uranium-contaminated groundwater with an indigenous consortium under high-nitrate conditions

被引：0
|
作者：
Wang, Guohua [1 ,2 ,3 ]
He, Shan [1 ,2 ]
Xiao, Quanjin [1 ,2 ]
Peng, Kun [1 ,2 ]
Tang, Donghui [1 ,2 ]
Dong, Zhitao [1 ,2 ]
Pan, Menglu [1 ]
Li, Shiyou [1 ,2 ,3 ]
机构：
[1] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China
[2] Univ South China, Hunan Prov Key Lab Pollut Control & Resource Reuse, Hengyang 421001, Peoples R China
[3] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Indigenous consortium; Uranium; Nitrate; Bioreduction; Biomineralization; MICROBIAL COMMUNITIES; PHOSPHATE; U(VI); BIOREDUCTION; REDUCTION; GLYCEROL; BIOMINERALIZATION; IMMOBILIZATION; MECHANISM; REMOVAL;
D O I：
10.1007/s10967-024-09500-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This study investigates the effects of nitrate exposure on the indigenous consortium mediated remediation of uranium-contaminated groundwater. Intermittent experiments reveal that high-nitrate concentrations hinder uranium reduction, whereas using glycerophosphate as carbon source, microbe could immobilize uranium by generating biomineralized precipitates with high crystallinity, and these precipitates exhibited better stability at high-nitrate concentration compared to those formed at low-nitrate condition. We also elucidated the mechanism of uranium removal by microorganisms under different conditions by analyzing changes in solution chemistry, products formed and microbial community structures. This work extends the scope for treating uranium-contaminated groundwater and is important for achieving long-term treatment of uranium contamination.
引用
收藏
页码：2709 / 2722
页数：14
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