UV-Fenton试剂降解水中苯酚的研究

Study on phenol degradation in water with UV-Fenton reagent

采用UV-Fenton法降解苯酚溶液,研究其对苯酚光催化降解过程的影响因素。考察了光照时间、苯酚初始浓度、H2O2和Fe2+用量、溶液pH值等对苯酚光催化降解的影响。结果表明,常温下苯酚初始浓度为300 mg.L-1时,在光照时间为10 min,H2O2浓度为20 mmol.L-1,Fe2+浓度为3.6 mmol.L-1,pH值为4时,苯酚降解率可达98.37%。

The phenol solution is treated with UV-Fenton tO study the factors influencing the degradation process such as the UV irradiation time, the initial concentration of phenol solution, H2O2 and Fe^2＋ quantity, and Fenton reagent pH value etc. The experimental results indicate that the degradation rate can reach to 98. 37% in the following conditions, initial phenol concentration 300 mg · L^-1 , irradiation time 10 min, the concentrations of H2O2 and Fe^2＋ are 20 mmol· L^-1 and 3.6 mmol· L^-1 respectively, and pH value 4.