阿特拉津降解菌的生长规律及降解特征的实验  

Experimental Research on Characteristic of Growth and Its Degradation of Bacteri um AT

作　　者：胡宏韬[1] 林学钰[2] 刘娜[2] 李莉[2] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]吉林大学环境与资源学院,长春130026

出　　处：《城市环境与城市生态》2003年第3期20-22,共3页Urban Environment & Urban Ecology

基　　金：国家自然科学基金项目(49872083);同济大学污染控制与资源化研究国家重点实验室资助

摘　　要：应用了从农药厂阿特拉津生产车间污泥中分离出的菌种AT菌,进行了菌种生长曲线的测定,求得AT菌的对数期代时为3.87d,生长速率为0.258d-1;不同基质浓度的降解实验表明,在农药污染质阿特拉津的低浓度体系中,AT菌降解阿特拉津的反应符合一级动力学模式,属于米氏方程曲线的第一阶段的情形,并拟合出关系式V=0.064S。The growth curve was drown according to the data from the experiment c onducted by using bacterium AT separated from the sludge of the workshop of a p esticide factory. The generation time and the rate of growth were 3.87d and 0.258d -1 respectively in logarithmic period by calculation. Another experi ment w ith different concentrations of pollutant atrazine indicated that the reaction a ccord with the model 1 of dynamics and the curve is belonging to the first phase curve of Michaelis equation when the concentrations of pollutant atrazine were lower. And the linear equation is V =0.064 S (where V is rate of degradatio n, S means concentration of pollutant atrazine).

关 键 词：降解菌 生长规律 降解特性 生物降解 米氏方程 农药厂 污泥 地下水污染 农药污染 治理 

分 类 号：X523[环境科学与工程—环境工程] X592