摘要
研究了Fenton法氧化降解MC-LR的影响因素,包括反应时间、pH、H2O2浓度、Fe2+/H2O2、Fe3+等。正交试验表明,各个因素的影响作用为H2O2浓度>Fe2+浓度>反应时间>pH。最佳试验条件为:H2O2浓度1.8 mmol/L、Fe2+/H2O2=1∶18、初始pH=3、反应时间30 m in、反应温度(25±1)℃,在该条件下,MC-LR初始质量浓度为2.0μg/L时,去除率可达94.4%。
The influencing factors of MC-LR oxidation and degradation by Fenton method were investigated, including reaction time, pH, H202 concentration, Fe2＋/H202 molar ratio, Fe3＋ etc. The orthogonal experiment results showed that the capability of effect factors was H2 02 concentration 〉 Fe2＋ concentration 〉 reaction time 〉 pH. The optimum conditions were： the H202 concentration of 1. 8 retool/L, 1 ： 18 of Fe2＋/H202, the initial pH value of 3, reaction time for 30 rain and the reaction temperature of （25 ＋ 1 ） ℃. The removal rate could be 94.4% under these conditions when the initial concentration of the MC-LR was 2.0 μg / L.
出处
《供水技术》
2011年第2期21-24,共4页
Water Technology
