Preliminary Application of Atrazine Degrading Strain J2 in the Soil Bioremediation

摘要

This research studied the bioremediation of atrazine polluted soil by atrazine degrading strain J₂ which is isolated from the long polluted black glebe in the libratory condition. Inoculated the J₂ which OD₆₀₀ value is 1 into the sterilized soil and non-sterilized soil as 1% ratio (bacterial liquid volume mL /soil weight g) respectively, the atrazine concentration of the soil is 10 mg/Kg. J₂ utilized atrazine as the only nitrogen source to grow, it belongs to the rhizobium. The soil sample after culturing 15 days in the 30degC, the atrazine degrading rate of the two soil samples which add the J₂ bacterial liquid is 95.6% and 97.4% respectively, and the atrazine degrading rate of the two soil samples which without the J₂ bacterial liquid is 16.2% and 16.9% respectively. The results shown that J₂ bacterial liquid represented a good effect on degradation of atrazine in soil , meanwhile, the indigenous microorganism which in the soil could interact with the J₂, it could increase the degrading ability of J₂.