Research on the Removal of Alachlor by Homogeneous Photocatalytic Oxidation Process

In the study,UV/H2O2 photodegradation system was adopted in the removal of alachlor in water,and the effect of pH,influent temperature,dose of H2O2,influent concentration of alachlor and other conditions on the photodegradation efficiency were discussed.The results indicated that under different experimental conditions,alachlor got high removal efficiency by UV/H2O2 photodegradation systems,and the removal of alachlor could reach 99% more by the time of 10 min.The concentration of ·OH from photodecompose of of H₂O₂were key factors that affected reaction rateand the conditions of 2 0℃, pH=7.0 and 70mg/L of H₂O₂were optimum photodegradation conditions of alachlor.