一株耐铬细菌的除铬研究  

Reduction of Cr(Ⅵ) by a Chromium Resistant Strain

作　　者：张玥[1] 岳蕙颖 王进[2] 

机构地区：[1]河南省济源市第一中学,河南济源454000 [2]合肥工业大学资源与环境工程学院,安徽合肥230001

出　　处：《广东化工》2015年第24期80-81,共2页Guangdong Chemical Industry

摘　　要：从安徽某制革厂含铬废水降解处理的好氧反应池活性污泥中采样并分离得到一株耐铬芽孢杆菌HO3。文章以酵母浸粉为底物,分别考察了在不同的初始底物浓度和不同的六价铬浓度下,芽孢杆菌HO3的生长过程及对六价铬的还原过程。结果表明,芽孢杆菌HO3的浓度随着底物浓度的增加而增加,芽孢杆菌HO3适宜生长的酵母浸粉初始浓度为5 mg/L,且六价铬的初始浓度为50 mg/L时,芽孢杆菌HO3具有较好的降解铬的性能。One chromium resistant strain, bacillus HO3, was isolated from the aerobic activated sludge, which was used to treat the chromium-contained wastewater. In the paper, the growth of bacillus HO3 and the reduction process of hexavalent chromium were investigated at different initial substrate concentration and different concentration of hexavalent chromium, respectively, with yeast powder as substrate. The result showed that the biomass was increased with the increase of the substrate concentration. Initial concentration of 5 mg/L yeast powder was a proper substrate concentration for the growth of bacillus HO3, and it had better performance of the degradation of chromium when the initial concentration of hexavalent chromium was 50 mg/L.

关 键 词：耐铬菌 芽孢杆菌 六价铬还原 酵母浸粉 

分 类 号：TQ[化学工程]