Degradation of herbicide (ametryn) in water by UV-H2O2 combinated process
The removal performances of ametryn in drinking water using UV-H2O2 combinated process was investigated in this paper. The results showed that ametryn cannot be effectively removed by UV radiation and H2O2 oxidation alone, while UV-H202 combination process could achieve quite good removal efficiency. As the initial concentration of ametryn about 0.901mg/L, its remova1 efficiency reached 97.68％ under the condition that the intensity of UV radiation, the dosage of H2O2, reaction time, pH and residual concentration were 85.7μW/cm2, 5mg/L, 40minutes, 7.0 and 0.021mg/L, respectively. The kinetic effects of H2O2 dosage, pH values and ametryn initial concentration on the conversion of ametryn were examined respectively. Analysis of factors showed that UV radiation intensity, H2O2 dosage, pH values and ametryn initial concentrations have important effect on the degradation of ametryn.
advanced ozidation process ametryn drinking water UV radiation kinetics
Naiyun GAO Wenhai CHU Dandan Zhao Bin Xu Jianfu Zhao
State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai, China
国际会议
上海
英文
3255-3258
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）