期刊论文

Wang, Wen-tao

英文

中国有色金属学报(英文版)

1003-6326

2015

25

12

4144-4150

10.1016/S1003-6326(15)64080-8

Projects（11175081 11475080）supported by the National Natural Science Foundation of China project（13JJ3078）supported by the Natural Science Foundation of Hunan Province China Project（14k083）supported by the Innovation Platform Open Fund Project of University in Hunan Province China

本校为第一且通讯机构

Anthraquinone-2-sulfonate (AQS) was employed in humus substitutes to evaluate the effects and influencing factors of U(VI) reduction-by Shewanella oneidensis MR-1 (S. oneidensis MR-1) under anaerobic-condition. The removal rate of U(VI) at 30 ℃ reaches 99.0% afterd 96 h with the pH value of 7.0 and AQS concentration of 1.0 mmol/L. The effective concentrations of AQS as the accelerator for U(VI) bioreduction are approximately 0.5-1.0 mmol/L. The bioreduction of U(VI) is inhibited when the concentration of AQS exceeds 2.0 mmol/L. The coexistence...

在厌氧环境下,以蒽醌-2-磺酸钠(AQS)作为腐殖质模式物,对奥奈达希瓦氏菌(Shewanella oneidensis,S. oneidensis)还原U(VI)的效果与主要影响因素进行研究。结果表明:在30 ℃,当pH值为7.0,AQS为1.0 mmol/L,反应96 h后,S. oneidensis对U(VI)的去除率达到99.0%。AQS浓度为0.5~1.0 mmol/L时,其能有效促进U(VI)的还原,当AQS浓度超过2.0 mmol/L时,其对U(VI)的还原促进作用明显减小。Cu~(2+)、Cr~(6+)和Mn~(2+)对U(VI)的还原均表现出明显的抑制作用,而Zn~(2+)对U(VI)的还原影响较小。NO_3~-离子浓度低于0.5 mmol/L时,其对U(VI)的还原基本没有影响,而当NO_3~-离子浓度高于1.0 mmol/L时,其对U(VI)的还原存...