微生物絮凝剂MNb-1絮凝效果的影响因素研究  

Influence Factors of Bio-Flocculant MNb-1 on Flocculating Effect

作　　者：周本军[1] 林波[2] 

机构地区：[1]合肥工业大学资源与环境学院,安徽合肥230009 [2]南昌大学环境科学与工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2007年第4期323-325,339,共4页Journal of Nanchang University(Engineering & Technology)

摘　　要：从受污染的河畔污泥中筛选出一株具有絮凝活性的微生物絮凝剂产生菌,用该菌产生的微生物絮凝剂(代号MNb-1)对高岭土悬浮液进行絮凝,主要考察高岭土悬浮液的初始pH、絮凝剂MNb-1的投加量、金属离子助凝剂等3个因素对絮凝效果的影响。实验表明:高岭土悬浮液的初始pH对絮凝效果影响不是很明显,而絮凝剂MNb-1的投加量、金属离子助凝剂剂量对絮凝效果有很大的影响。絮凝剂MNb-1对高岭土悬浮液的最佳絮凝率可达到92.1%。A strain of microbial flocculant-producing bacterium was isolated from sludge of polluted river bank, Microbial flocculants produced by this bacterium was applied to flocculate the Kaolin clay suspension . The three influence factors on flocculating effect was studied , which includes the initial pH of suspension , the amount of MNb-1 and the amount of cation flocculation accelerator . The test showed that the initial pH of suspension had almost no effect on flocculating effect, While the amount of MNb-1 and the amount of cation flocculation accelerator could influence the flocculating effect greatly. The best flocculating rate of MNb-1 against Kaolin clay suspension was 92.1%.

关 键 词：微生物絮凝剂 成分 絮凝效果 

分 类 号：X703.5[环境科学与工程—环境工程] Q935[生物学—微生物学]