文献类型： 会议论文
第一作者： Jia Sun
作者： Jia Sun 1 ; Guoping Yu 1 ; Yue Li 2 ;
作者机构： 1.College of Environmental Science and Engineering, Tongji University
2.Guangdong Academy of Agricultural Sciences
关键词： Chlorella pyrenoidosa;Uranium;Resistance;Biosorption rate
会议名称： International Conference on Energy, Environment and Sustainable Development
主办单位：
页码： 38-41
摘要： The effect of uranium at various concentration on the growth of Chlorella pyrenoidosa and the resistance of Chlorella pyrenoidosa to uranium were investigated in this paper. The results showed that the content of O_2~- and the activity of CAT arose when the concentration of uranium varied at the range of 0.1 to 1.0 mg/L. Uranium had no negative effect on the growth of Chlorella pyrenoidosa at the concentration of 0.1 to 0.5 mg/L, however, had positive effect to some extent. And the rise of the content of O_2~- and the activity of CAT was followed by rapidly returning to the normal level. The uranium at the concentration of 1.0 mg/L prolonged the lag period of the growth of Chlorella pyrenoidosa. The growth of Chlorella pyrenoidosa arose negatively, the content of O_2~- also arose to an unreturnable level and the activity of CAT was lower than CK when the concentration of uraniumm varied at the range of 5.0 to 10.0 mg/L. The uranium biosorption rate by Chlorella pyrenoidosa reached to the highest value of 70.43% when concentration of uraniumm was 0.5 mg/L. Chlorella pyrenoidosa is resistant to uranium of low concentration (≤1.0 mg/L) and its biosorption rate is rather high, which indicated good prospect in its future application.
分类号： x1-532
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