微生物絮凝剂产生菌的筛选及其对含油废水的处理研究

Screening of A Strain Producing Microbial Flocculants and Study on Its Treatment for Oily Wastewater

采用吡啶筛选法得到微生物絮凝剂产生菌株B-6-1,其絮凝率达到92.5%;将其用于含油废水的处理,对微生物絮凝剂投加量、废水pH值、废水温度及辅助金属离子的类型等影响因素进行了研究。确定微生物絮凝剂的最佳絮凝条件为:微生物絮凝剂投加量0.33 mL.L-1,废水pH值9.0、废水温度35℃、添加辅助金属离子Ca2+。

In this study,we focused mainly on the screening of a flocculant-producing strain and its application in oily wastewater treatment.The flocculant-producing strain of B-6-1 was obtained by the pyridine screening method,and the flocculating rate of fermentation liquid was 92.5%.The influence of factors such as bioflocculant dosage,pH value of wastewater,temperature of wastewater,and the type of metallic ions on the flocculation were studied.The optimal conditions were as follows：bioflocculant dosage 0.33 mL·L-1,pH value of wastewater 9.0,temperature of wastewater 35℃,addition of auxiliary metallic ion Ca2＋.