Study on Treatment to Methanol Wastewater by UV/Fenton

In this paper, aqueous methanol (methanol concentration 1000 mg.l(-1)) degradation was studied by using UV/Fenton, and effect of methanol degradation was evaluated with COD removal rate. When pH was determined, H2O2 dosage, Fe2+ dosage and reaction time were investigated by single factor test, respectively. In the orthogonal experiment, UV/Fenton was used to deal with wastewater of 1000 mg.l(-1)methanol, the order of the influent factors on COD removal was: H2O2 dosage > reaction time > Fe2+ content. Under the optimal condition (6%H(2)O(2)50 ml.l(-1), Fe2+ 0.9 g.l(-1), reaction time 60 min), 95.77% COD removal rate was obtained. In addition, a comparison of UV, Fenton regent and UV/Fenton system indicated that UV and Fe2+ had synergistic effect on catalytic decomposition of H2O2, and reaction time to obtain the highest COD removal was shorted 10 min when UV/Fenton was used.