芬顿法处理靛红染料废水的研究

Study on Fenton Process for Treatment of Isatin Dye Wastewater

采用Fenton法处理染料靛红废水,通过正交实验和单因素实验探究FeSO_(4)·7H_(2)O和双氧水用量,pH等因素对染料靛红废水COD去除率的影响;经试验确定最佳条件为:100 mLCOD约为320 mg/L靛红染料废水,pH值为3.0,FeSO_(4)·7H_(2)O投加量为0.03 g,稀释5倍的30%H_(2)O_(2)投加量为3 mL,经芬顿氧化试剂处理,其COD去除率达98.02%,满足国家污水一级排放标准。

In this paper,Fenton oxidizing reagent is used to treat dye isatin wastewater.Through orthogonal experiment and single factor experiment,the influence of FeSO_(4)·7H_(2)O and hydrogen peroxide dosage,pH,and other factors on the COD removal rate of dye isatin wastewater is investigated to determine the dye wastewater discharge standard.The best conditions of the experiment show that the best conditions are:100 mL COD is about 320 mg/L isatin dye wastewater,pH value is 3.0,FeSO_(4) ·7H_(2)O dosage is 0.03 g,diluted 5 times 30%H_(2)O_(2) dosage.The added amount is 3 mL,and the COD removal rate reaches 98.02%after Fenton oxidation reagent treatment,which meets the national first-level sewage discharge standard.