微生物絮凝剂处理矿井水实验研究

从土壤中筛选得到能够产絮凝剂的菌种L01，并考察了其所产絮凝剂对几种矿井水的絮凝处理效果，主要结论如下：筛选到的菌株L01为好氧的革兰氏阴性菌，经过生化鉴定，初步确定其为葡糖杆菌属；起絮凝作用的活性成分为菌株L01的胞外分泌物，其菌液离心上清液对矿井水有较好的絮凝效果；絮凝剂可以减少矿井水的悬浮物含量和降低浊度，但对其他指标影响不大；Ca^2＋有很好的助絮凝效果，添加助凝剂CaCl2后，絮凝剂对三种矿井水中悬浮物的最终去除率可以达到98．5％、98．8％、98．7％。

Experimental Study on Treating Mining Water with Microbial Flocculant

L01 was isolated as a strain of flocculant - producing microorganism from the soil, and the flocculation effect of the bioflocculant produced by L01 on mining water was studied. The main conclusion was as followed ： L01 is aerobic and Gram - negative, and was identified as gluconobacter after biochemical identification; the flocculation active ingredients was the extracellular secretion of L01, its centrifugal supernatant had better flocculation effect on mining water than bacterial suspensions; the content of SS and turbidity of mining water reduced in the flocculating process, but the flocculant had little effect on other indexes ; bioflocculant activity can be apparently improved when using Ca^2＋ as the flocculant - aid, the flocculating rate of SS in mining drainage can reach to 98.5% ,98.8% and 98. 7%.