| 王清良,王星星,胡鄂明,李乾,黄龙,蒋潇宇.CO2+O2地浸采铀污染物的产生及SRB治理探索试验[J].南华大学学报(自然科学版),2015,29(3):9~13.[WANG Qing-liang,WANG Xing-xing,HU E-ming,LI Qian,HUANG Long,JIANG Xiao-yu.Pollutants Generation in CO2+O2 In-situ Leaching of Uranium andthe Explorative Control Experiment by Using SRB[J].Journal of University of South China(Science and Technology),2015,29(3):9~13.] |
| CO2+O2地浸采铀污染物的产生及SRB治理探索试验 |
| Pollutants Generation in CO2+O2 In-situ Leaching of Uranium andthe Explorative Control Experiment by Using SRB |
| 投稿时间：2015-05-28 |
| DOI： |
| 中文关键词: SRB CO2+O2耐氧限度 地浸采铀 废水治理 |
| 英文关键词:SRB CO2+O2 oxygen tolerance in-situ leaching of uranium wastewater treatment |
| 基金项目:国家自然科学基金资助项目(51154003)；国家大学生创新创业计划基金资助项目(201410555007)；2014年湖南省大学生研究性学习和创新性实验计划基金资助项目(232) |
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| 中文摘要: |
| CO2+O2地浸与酸法地浸相比,具有显著的环保优势,但也会对地下水造成一定的影响,如在生产过程中可能产生SO2-4、Mn2+和其他重金属离子.本文阐述了CO2+O2地浸采铀污染物的产生机理,开展了SRB治理污染物的探索性试验.主要研究了不同pH、不同氮气压力下SRB处理还原硫酸根的效果,结果表明,pH值对SRB还原硫酸根有很大影响,当pH值为6~8时,SRB还原硫酸根的效果最好；与氮气加压条件相比,没有氮气加压的情况下,SRB还原硫酸根的效果更好；SRB能在一定的溶解氧水平下存活,并且还原硫酸根的效果更好. |
| 英文摘要: |
| Compared with acidic in-situ leaching,CO2+O2 in-situ leaching exerts significant environmental advantages,but has a certain pollution on groundwater,for example,SO2-4,Mn2+ and other heavy metal ions may be produced in the production process.In this paper,the mechanism of pollutant generation in CO2+O2 in-situ leaching of uranium were described,and the explorative control experiment by using SRB were performed.Treatment effect of sulphate reduction of SRB (sulfate-reducing bacteria) in different pH and pressure of nitrogen were investigated.The results showed,the pH had a great effect on SRB of reducing sulfate.When pH value was at 6~8,SRB had the best effect for sulfate reduction;compared with the situation with nitrogen pressure,SRB had the better effect for sulfate reduction without nitrogen pressure.SRB could survive under a certain level of dissolved oxygen,and had more effective reduction for sulfate. |
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