【摘要】 采用了从农药厂阿特拉津生产车间排污口污泥中分离出的菌种AT菌,进行了不同的pH值(pH=5.0～10.0)条件下污染质阿特拉津的降解实验。结果表明,AT菌在pH值为5.0～10.0时对农药污染质阿特拉津均具有降解能力,且适宜的pH值范围为6.5～8.0;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。更多还原

【Abstract】 Series of degradation experiments were conducted at different pH(5.0～10.0)using bacterium AT separated from a sludge outlet of a pesticide factory.The result indicated that bacteriu mAT had ability of degradation of herbicide atrazine at pHof the reaction media ranging from 5.0to 10.0,with the most optimum extent of 6.5～8.0.And the experiment with diffe rent concen-trations of pollutant atrazine indi cated that the reaction was in line wi th the model 1of dynamics and the curv e belonged to the first phase curve of Michaelis equation when the concentrations of pollutant atrazine were low,and the linear equation was V=0.064S.更多还原