微生物絮凝剂产生菌的筛选  

Screening of Bioflocculant-Producing Bacteria

作　　者：黎俊[1] 林波[1] 

机构地区：[1]南昌大学环境境科学与工程学院,江西南昌330029

出　　处：《江西科学》2005年第1期21-24,共4页Jiangxi Science

基　　金：江西省环保科研项目

摘　　要：从含有大量微生物菌群的土壤和活性污泥中筛选获得性能稳定、对高岭土悬浮液的絮凝率达90%以上的菌株8株。其中编号为LA6的菌株培养液对高岭土悬浮液的絮凝率达99%以上。该菌在实验室培养条件下,以接种量0.5ml/50ml,种龄8h,温度30℃,摇床转速为160r/min,培养时间72h可达最高絮凝活性。以高岭土和CaCl2作为助凝剂的LA6培养液对含亚甲基蓝10mg/l的溶液的脱色率10min可达到90.32%。Eight strains of bioflocculant_producing bacteria are isolated from the activated sludge and soil samples. Their culture broths possessed the high ability to flocculate kaolin suspension in the presence of 10 g/l CaCl_2. Based on the flooculating activity, the strain LA6 is singled out, whose culture broth boasts the greatest flocculating activity after 72 hours of cultivation in the fitting medium.

关 键 词：微生物絮凝剂 絮凝活性 筛选 

分 类 号：X703.1[环境科学与工程—环境工程]