In this paper,the effects of irradiation time,original concentration of pyridine solution,and pH on the degradation efficiency of pyridine were studied.The results show that the longer the sonication time is,the great...In this paper,the effects of irradiation time,original concentration of pyridine solution,and pH on the degradation efficiency of pyridine were studied.The results show that the longer the sonication time is,the greater the degradation efficiency of pyridine solution;the degradation efficiency of pyridine solution decreases linearly with the increase of the original solution concentration;the pH of the solution played an important role,and there is a good degradation efficiency at pH≥68;the conductivity and the degradation efficiency have the same variational trend.展开更多
An ultrasonic decomposition of synthetic wastewater containing methanidophos is reported. The effects of power intensity, irradiation time, solution temperature, initial PH, Fe2+ and H2O2 concentrations on the decompo...An ultrasonic decomposition of synthetic wastewater containing methanidophos is reported. The effects of power intensity, irradiation time, solution temperature, initial PH, Fe2+ and H2O2 concentrations on the decomposition of methamidophos have been examined. Under the conditions of initial concentration of methamidophos 0. 5-5. 0×10-4 mol/L, PH = 2. 5-10. 8, 30℃, power intensity 80 W/cm2, Fe2+ concentration 50 mg/L in 2 h from the oxygen saturated sample solution 99 .2 % of methamidophos were decomposed according to the COD measurement results.展开更多
文摘In this paper,the effects of irradiation time,original concentration of pyridine solution,and pH on the degradation efficiency of pyridine were studied.The results show that the longer the sonication time is,the greater the degradation efficiency of pyridine solution;the degradation efficiency of pyridine solution decreases linearly with the increase of the original solution concentration;the pH of the solution played an important role,and there is a good degradation efficiency at pH≥68;the conductivity and the degradation efficiency have the same variational trend.
文摘An ultrasonic decomposition of synthetic wastewater containing methanidophos is reported. The effects of power intensity, irradiation time, solution temperature, initial PH, Fe2+ and H2O2 concentrations on the decomposition of methamidophos have been examined. Under the conditions of initial concentration of methamidophos 0. 5-5. 0×10-4 mol/L, PH = 2. 5-10. 8, 30℃, power intensity 80 W/cm2, Fe2+ concentration 50 mg/L in 2 h from the oxygen saturated sample solution 99 .2 % of methamidophos were decomposed according to the COD measurement results.