Fenton试剂快速氧化处理地下水中BTEX可行性研究

Feasibility of rapid treatment of BTEX in groundwater by Fenton’s reagent

摘要: 研究了Fenton试剂氧化处理地下水中苯、甲苯、乙苯和二甲苯(BTEX)的效果。结果表明Fenton试剂具有很好的氧化处理BTEX的能力;H2O2/BTEX(摩尔比)=5和10时,在H2O2/Fe(Ⅱ)(摩尔比)=4和8的情况下氧化去除效果最好,去除率能达到80%以上;H2O2/BTEX(摩尔比)=20时,氧化去除效果显著,此时H2O2/Fe(Ⅱ)摩尔比对处理效果影响较小,H2O2/Fe(Ⅱ)=10时最终去除效率均达到97%～100%;整个实验过程中体系处于强氧化环境,pH值由6～7迅速下降至3左右。

Abstract: The removal effect of Fenton’s oxidation treatment of benzene,toluene,ethyl benzene,and xylenes(BTEX) in groundwater was investigated.The results show that Fenton’s reagent suggested a strong ability to oxidize BTEX.While H2O2 /BTEX(molar ratio) = 5 and 10,H2O2 /Fe(II)(molar ratio) = 4 and 8 were best for oxidizing BTEX.The removal rate was over 80%.While H2O2 /BTEX(molar ratio) = 20,Fenton’s reagent suggested an effectively oxidation and there was little impact of H2O2 /Fe(II) on Fenton’s treat...