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| 硅酸盐杆菌的紫外诱变育种与脱硅应用研究 | |
| 引用本文： | 宋翔宇,邱冠周.硅酸盐杆菌的紫外诱变育种与脱硅应用研究[J].有色金属(选矿部分),2012(3):48-54. |
| 作者姓名： | 宋翔宇 邱冠周 |
| 作者单位： | 1. 中南大学资源加工与生物工程学院,长沙410083;河南省岩石矿物测试中心选冶工程研究所,郑州450012 2. 中南大学资源加工与生物工程学院,长沙,410083 3. 河南省岩石矿物测试中心选冶工程研究所,郑州,450012 |
| 基金项目： | 2008年河南省国土资源科研资金资助项目 |
| 摘 要： | 将一株从矿坑水中筛选到的硅酸盐杆菌YK-1进行紫外诱变,选育出突变菌株YK-4。对YK-1和YK-4进行铝土矿脱硅能力对比试验和YK-4突变株遗传稳定性试验,结果表明,紫外诱变的最佳照射时间为20 s,YK-4菌株对SiO2的脱除率比原菌株YK-1提高了29.51%,并且其遗传性能稳定。应用YK-4进行了铝土矿脱硅的单槽放大试验,结果表明,单槽放大后,突变菌株的脱硅效果仍然比较显著,能将铝土矿铝硅比从4.02的提高到8.05,硅浸出率达到45.53%。 |
| 关 键 词： | 硅酸盐杆菌 育种 紫外诱变 生物脱硅 铝土矿 |
| 收稿时间： | 2011/9/12 0:00:00 |
| 修稿时间： | 2012/3/22 0:00:00 |
Studies on UV Mutation Breeding of Silicate Bacteria and Removal of Silica from Bauxite by Bioleaching |
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| Authors: | songxiangyu and qiuguanzhou |
| Affiliation: | 1.School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;2.Henan Province Rock and Minerals Testing Center,Zhengzhou 450012,China) |
| Abstract: | By mutating a silicate bacteria YK-1 by UV-ray,which was isolated from a mine water in Henan,Mutant YK-4 was screened out.And then,the capacity of YK-1 and YK-4 to remove silicon from bauxite was studied and genetic stability of YK-4 was tested.The results show that the best UV irradiation time is 20s.Besides,the desilication rate of YK-4 increased by 29.51% comparing with YK-1,and it has stable characteristics of genetics.The results obtained by larger scale bioleaching test indicate that it is also efficient to leaching silicon from bauxite with YK-4,and the ratio of Al2O3 to SiO2(A/S)in concentrate samples is increased from 4.02 to 8.05. |
| Keywords: | silicate bacteria breeding UV mutagenesis bioleaching desilication bauxite |
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