摘要
邻苯二甲酸二甲酯(DMP)是一种不易降解的有毒有害污染物。试验研究了在活性炭的吸附催化作用下,UV和Fe2+协同催化H2O2,产生具有强氧化性的.OH,降解DMP的过程。结果表明,UV/Fe2+-H2O2/吸附层体系对DMP废水有较好的催化氧化降解作用。对于初始质量浓度为100 mg.L-1的DMP溶液,初始pH为4、FeSO4与H2O2摩尔投加量比为1:3.0,曝气量为0.25 L.min-1,反应80 min后,紫外吸收去除率提高到75%,TOC去除率达到68%。
Dimethyl phthalate(DMP) is a kind of toxic pollutant and hard to degrade.The study on synergistic catalytic effect of UV/Fe2+-H2O2 can produce a strong oxidation of·OH and depradate DMP on the condition that the adsorption-catalytic of activated carbon catalyst.The result showed that UV/Fe2+-H2O2 system can have better oxidation and degradation effect on DMP wastewater.For 100 mg·L-1 DMP,The beneficial conditions for the improvement of synergistic catalytic effect and reaction rate were: The initial pH value was 4,the rate of adding FeSO4 and H2O2(30%) was 1:30,the aeration rate was 0.25 L·min-1.The removal of UV absorption rate can be 75% and TOC removal rate can be 68% after 80 min's reaction.
出处
《水处理技术》
CAS
CSCD
北大核心
2011年第5期62-65,69,共5页
Technology of Water Treatment
基金
国家高技术研究发展计划(863)项目(2009AA063904)
湖北省自然科学基金(2008CDA099)