【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 ,进行了农药阿特拉津污染地下水微生物治理的模拟实验研究 ,在实验条件 (T =10℃ ,pH =7.5 )与野外含水层的条件基本一致情况下 ,难于生物降解的污染质阿特拉津的一次投菌降解率可达 3 1.0 8% ;设计了两种有效细菌的投放方式以模拟野外条件下的菌种投加条件。另外 ,AT菌的作用会造成被治理含水层的渗透性能降低 ,两种投菌方式下 ,实验后含水层的渗透系数分别下降 60 .5 4%和 3 4 5 6%。清水冲洗 10d的渗透性恢复率分别为 48.96%及 81.3 6% ,说明清水渗透恢复的方法效果明显更多还原

【Abstract】 The experimental research on the treatment of groundwater contaminated by herbicide atrazine was conducted by using bacterium AT which was separated from the sludge outlet of workshop of the pesticide factory. The experimental conditions (pH=7.5,T=10 ℃) were similar to that of the aquifer in study area. Then the rate of degradation of pollutant atrazine which is degraded difficultly was up to 31.08% for one dropping. And two effectual modes of dropping bacteria were designed to simulate the condition of throwing bacteria in field. In addition, the permeability of aquifer decreased 60.54% & 34.56% after treatment for the two modes. And the renewals were 48.96% & 81.36% respectively after washing with clean water for 10 days, which indicated that the method of renewal is effectual.更多还原