微生物絮凝剂处理造纸中段废水的实验研究

Experimental Research on Handling the Middle Phase Wastewater in Paper Making Process by Bio-flocculant

实验从土壤中分离筛选出1株絮凝活性较高的絮凝剂产生菌,经鉴定为1株黑曲霉。采用其产生的微生物絮凝剂M-2处理造纸中段废水,对絮凝条件进行了优化,在最佳絮凝条件下,M-2对造纸中段废水的CODCr去除率可达70.6%,浊度去除率可达91.7%,其絮凝效果优于传统的絮凝剂。

A flocculent-producing strain aspergillus niger,with high flocculating activity has been isolated from soil,from which the flocculant M-2 is used to treat the middle phase wastewater in paper making process.Under the optimal conditions the removal rate of CODCr and turbidity can reach 70.6% and 91.7% respectively and the flocculent effect is better than that of the traditional.