期刊论文

中文

衡阳师范学院学报

1673-0313

2022

43

3

95-99

10.3969/j.issn.1673-0313.2022.03.013

YK20K04:衡阳师范学院创新平台开放基金项目 19C0281:湖南省教育厅一般项目 s202112659002:衡阳师范学院南岳学院大学生创新创业训练计划国家级项目

本校为第一机构

从湖南省衡阳市272厂铀尾矿库筛选分离出一株耐铀细菌Y-1,通过16S rRNA基因测序比对,初步鉴定该菌株为蜡样芽孢杆菌(Bacillus cereus).通过静态吸附实验,考察不同pH值、吸附时间、吸附剂投加量和初始铀浓度对菌株吸附U(VI)的影响.结果表明,该菌株具有良好的吸附效果,在吸附条件T=30℃,pH=5,t=200 min,C0(吸附剂)=0.3 g/L,C0(UO22+)=10 mg/L时,对U(VI)的去除率达到了89.5％.说明该菌株在铀污染的土壤生物修复方面具有潜在的应用前景.

A uranium tolerant bacterium strain Y-1 was isolated from 272 mill uranium tailing impoundment located in Hengyang city, Hunan province. The bacterium was identified as Bacillus cereus on the basis of its 16S rRNA sequence homology analysis.Batch adsorption experiments were conducted to examine the effects of pH value, adsorption time, adsorbent dosage and initial uranium concentrations on U(Ⅵ) removal by this strain. The results showed that this strain had a good U(Ⅵ) adsorption performance.The U(Ⅵ) removal efficiency by this strain reached...