Fenton试剂法与EF-Feox法处理高浓苯酚废水的比较研究

Comparative Study on Treatment for Wastewater Containing High Concentration Phenol by Fenton Reagent and EF-Feox Separately

分别用Fenton试剂法和EF-Feox法氧化处理苯酚模拟废水,研究结果显示:Fenton试剂法中,H2O2投加量为10mL/L,Fe2+为4mmol/L,pH为4.1,经过30min后,COD去除率达75.7%.而在EF-Feox法中,在外加电压7V,H2O2投加量为5.6mL/L,Na2SO4投加量0.7g/L,pH为3.1,经过30min后,COD去除率达83.3%.两者比较,EF-Feox法比Fenton试剂法的去除率效果提高了近8%.

The treatment for wastewater containing high concentration phenol by Fenton reagent and EF-Feox sepa- rately is studied. The result shows that under the conditions of H2O2 dosage of 10ml/L, Fe^2＋ dosage of 4mmol/L, initial pH4.1 ,the COD removal rate could reach 75.7% for 30min by Fenton reagent. The COD removal rate by EF-Feox within 30min is 83.3% when voltage is 7V, the dosage of H2O2 is 5.6mL/L, the dosage of Na2SO4 is 0.7 g/L, initial pH is 3.1. The removal result improves nearly 8% by EF-Feox in contrast to Fenton reagent.