紫外-Fenton 法对染料废水的脱色研究

摘要

以甲基橙为目标物，考察紫外-Fenton法对水中甲基橙的脱色能力。系统研究了甲基橙的初始浓度、 H2 O2用量、Fe2＋用量、 pH等对甲基紫脱色率的影响和达到最大脱色率的最佳条件。结果表明：甲基橙的初始浓度20 mg/L， pH为3.0， H2 O2用量20 mg/L， Fe2＋的用量为40 mg/L，紫外-Fenton法对甲基橙的脱色率可达90.00％。%Methyl orange as example , the effects of UV-Fenton on decolorization of dye wastewater were studied.The effected factors of initial concentration , H2 O2 , Fe2+, pH, etc, in the decolorizing processes were investigated.The results showed that when initial concentration was 20 mg/L, the pH was 3.00, the dosage of H2O2 was 20 mg/L, and the dosage of Fe 2+was 40 mg/L.The decolorization ratio of methyl orange was over 90%.