含酚废水处理高效菌株的筛选

酚类化合物属于持久性有机污染物，含酚废水在我国水污染控制中被列为需要重点解决的有害废水之一。本文通过对本钢焦化厂含酚废水处理工艺中曝气池内活性污泥所含未知菌株进行分离纯化，并经过对酚的耐受性实验和降解率实验，得到处理酚的高效菌株。通过对筛选出的菌株进行细胞个体彤态和菌群形态特征观察及一系列生理生化实验，确定筛选出来的7株能高效降解酚的菌株为假单胞菌。本文的实验结果将有利于今后对含酚废水的处理。

Selection of bacteria strain to treat phenol-containing wastewater with high efficiency

Since phenol chemical compound is permanent organic pollutant, phenol-containing wastewater treating has the high priority in water pollution control in our country. In this paper, bacteria strains were separated and purified from the active mud of a ventilated pool in which wastewater containing phenol was treated. 7 bacteria strains that could treat phenol-containing wastewater with high efficiency were chosen according to their phenol tolerance and phenol degradation rate. Based on the microscopic observation of the characteristics of colony and individual cell, and the results of a series of physiology and biochemical tests, those 7 chosen bacteria strains were identified to be Pseudomonas. This work is beneficial for the phenol-containing wastewater treatment in the future.