Fenton、光Fenton、US-Fenton和US-光Fenton同时处理垃圾渗滤液的比较  

Function difference study for treating landfill leachate among the methods of Fenton,photo-Fenton,US-Fenton and US-photo-Fenton

作　　者：查甫更[1,2] 张瑞良[1] 姚多喜[1] 胡友彪[1] 王兴明[1] 高良敏[1] 

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]矿山地质灾害防治与环境保护安徽普通高校重点实验室(安徽理工大学),安徽淮南232001

出　　处：《安全与环境学报》2017年第6期2327-2331,共5页Journal of Safety and Environment

基　　金：国家自然科学青年基金项目(51608006);安徽省自然科学青年基金项目(1608085QE125);安徽省博士后基金项目(2016B119);2015年皖江城市带退化生态系统的恢复与重建安徽省协同创新中心资助项目;安徽高校自然科学研究项目(KJ2016A827);大学生创新创业训练计划项目(201610361118)

摘　　要：为比较Fenton、光Fenton,US-Fenton和US-光Fenton处理垃圾渗滤液的效果,研究了相关Fenton工艺对有机物去除率、UV-Vis光谱、GC-MS图谱的影响。结果表明:与相关Fenton工艺相比,US-光Fenton的TOC去除率最高,达到65.4%,同时,BOD5/COD从0.204上升到0.415,UV-Vis谱线下降幅度最大,E254、E280和E400的去除率也最大;依据GC-MS图谱,渗滤液中含有56种有机物,其中36种物质被US-光Fenton完全去除;最后提出了US-光Fenton降解垃圾渗滤液中污染物的可能反应途径。This paper intends to make an exploration of the impacts of the optimal operating conditions,such as 30 min the treating time,the initial p H 3. 0,the molar ratio of initial H_2O_2 to initial TOC fixed at 1 and the Fenton reagents molar ratio fixed at 5 on the treatability of the landfill leachate in removing the organic pollutants,the UV-Vis spectra and the GC-MS by using Fenton,photo-Fenton, sonication at the presence of Fe（ Ⅱ）（ US/Fe（ Ⅱ）） and then the Fenton or photo-Fenton processes（ US-Fenton or US-photo-Fenton）. As is known,landfill leachate is a high-strength sewage with acute and chronic toxicity,which can be treated as an alternative to the biological processes. The results of our study indicate that the landfill leachate treated in the above mentioned methods can be made to have the greatest organic compounds removing efficiency among the screened processes. It has been verified that the TOC removal efficiency of the landfill leachate treated by the US-photo-Fenton can be made to reach a percentage of 65. 4% whereas the value of BOD5/COD can be made to increase from 0. 204 to 0. 415. At the same time,it would be possible to decrease the intensity of UV-Vis the spectra significantly through the treatment till the minimal intensity of UV-Vis spectra of the leachate from the treatment by US-photoFenton,whereas the removal efficiency of E254,E280 and E400 can be increased to the highest degree. Moreover,the organic pollutants in the landfill leachate can be dissolved and worked out through GC-MS so as for about 56 organic components（ which take about 80% of what can be discovered in the landfill leachate） to be partly degraded or transformed into new organics by using the US/Fe（Ⅱ） whereas 36 of them can be totally removed through the treatment by the US-photo-Fenton. And,finally,the possible reaction approaches are recommended to degrade the organic pollutants in the landfill leachate by using the US-photo-Fenton,which can help to transform the organic pollutants,especially,the

关 键 词：环境工程学 垃圾渗滤液 US-光Fenton GC-MS 

分 类 号：X703[环境科学与工程—环境工程]