高效微生物絮凝剂产生菌的筛选及复合菌群培养研究  

Isolation of Strains Producing High Efficient Microbial Flocculant and Culture of Multiple Microorganisms

作　　者：沈永红[1] 薛玉[1] 刘宇鹏[1] 李黎[1] 

机构地区：[1]河南大学生命科学学院,河南开封475004

出　　处：《河南大学学报（自然科学版）》2015年第3期334-338,共5页Journal of Henan University:Natural Science

基　　金：河南省科技厅科技攻关项目(122102310349)

摘　　要：从活性污泥和土壤中筛选到数株能发酵生产絮凝剂的菌株,其中编号为M15、M10、Y1、F4的菌株具有显著的絮凝效果(絮凝率均大于70%).将其两两混合培养,发现M15+Y1、M10+F4混合培养后其发酵液对高岭土悬浊液的絮凝率较单一菌株培养时均有较明显的提高,并且具有较好的热稳定性.其中M15+Y1复合菌群在添加营养盐的污水培养基中生长良好,其发酵液对城市污水的絮凝效果可达80.5%,且具有良好的脱色效果(脱色率为90.3%).Four strains （M15,M10,Y1 and F4） producing high efficient flocculant were isolated from soil and activated sludge.After mixed cultivating,multiple colonies of M15 ＋ Y1 and M10 ＋F4 were found that the flocculation rate of the kaolin suspension was obviously improved,and the composite flocculant had good thermal stability.The experiments showed that M15＋Y1 grew well in the cheap medium and the flocculating efficiency of the bioflocculant was up to 80.5％,exhibiting the excellent decolorizing effect （decolorizing rate is 90.3 ％）.

关 键 词：微生物絮凝剂 菌种选育 复合菌群 廉价培养基 

分 类 号：X703[环境科学与工程—环境工程]