水处理技术
水處理技術
수처리기술
2010年
2期
64-67
,共4页
刘智萍%郭劲松%姜佩言%方芳
劉智萍%郭勁鬆%薑珮言%方芳
류지평%곽경송%강패언%방방
垃圾渗滤液%Fenton%表现分子质量%DOM组分
垃圾滲濾液%Fenton%錶現分子質量%DOM組分
랄급삼려액%Fenton%표현분자질량%DOM조분
landfill leachate%fenton%molecular weight (MW)%DOM fractions
考察了Fenton反应对渗滤液中DOM的处理效果,分析了Fenton反应前后DOM各组成成分及其表观分子量的变化.研究表明,Fenton对DOM的去除效果较好,其COD和DOC的去除率均在50%以上,UV_(254)的去除率达到84.5%.处理前,HA和FA为DOM主要组成部分,其COD、DOC及UV_(254)总和质量分数分别为DOM总量的77.5%、76.2%和86.70/0,处理后渗滤液中DOM以FA和Hyl为主,两者的COD、DOC及UV_(254)总和质量分数分别为DOM总量的97.6%、95.2%和95.1%.Fenton反应前,HA中以>4k的有机物为主,FA和Hyl则以<4k的有机物为主,反应后,3组分中均以<4k的有机物为主要组成部分,并且,Fenton对渗滤液中DOM3组分各指标的去除能力总体呈现HA>FA>Hyl的趋势.
攷察瞭Fenton反應對滲濾液中DOM的處理效果,分析瞭Fenton反應前後DOM各組成成分及其錶觀分子量的變化.研究錶明,Fenton對DOM的去除效果較好,其COD和DOC的去除率均在50%以上,UV_(254)的去除率達到84.5%.處理前,HA和FA為DOM主要組成部分,其COD、DOC及UV_(254)總和質量分數分彆為DOM總量的77.5%、76.2%和86.70/0,處理後滲濾液中DOM以FA和Hyl為主,兩者的COD、DOC及UV_(254)總和質量分數分彆為DOM總量的97.6%、95.2%和95.1%.Fenton反應前,HA中以>4k的有機物為主,FA和Hyl則以<4k的有機物為主,反應後,3組分中均以<4k的有機物為主要組成部分,併且,Fenton對滲濾液中DOM3組分各指標的去除能力總體呈現HA>FA>Hyl的趨勢.
고찰료Fenton반응대삼려액중DOM적처리효과,분석료Fenton반응전후DOM각조성성분급기표관분자량적변화.연구표명,Fenton대DOM적거제효과교호,기COD화DOC적거제솔균재50%이상,UV_(254)적거제솔체도84.5%.처리전,HA화FA위DOM주요조성부분,기COD、DOC급UV_(254)총화질량분수분별위DOM총량적77.5%、76.2%화86.70/0,처리후삼려액중DOM이FA화Hyl위주,량자적COD、DOC급UV_(254)총화질량분수분별위DOM총량적97.6%、95.2%화95.1%.Fenton반응전,HA중이>4k적유궤물위주,FA화Hyl칙이<4k적유궤물위주,반응후,3조분중균이<4k적유궤물위주요조성부분,병차,Fenton대삼려액중DOM3조분각지표적거제능력총체정현HA>FA>Hyl적추세.
This changes of DOM in landfill leachate by Fenton reaction, and then analyzed the changes of humic acid (HA), fulic acid (FA) and hydrophilic (Hyl) fractions and their molecular weight (MW) in the landfill leacbate were analyzed. The results showed that COD and DOC removal rate could exceed 50% and UV_(254) removal ratewas about 84.5%. Before Fenton process HA and FA fractions was the main parts in DOM, and COD. DOC and UV_(254) of the two parts were 77 5%. 76 2% and 86.7% in total DOM, respectively. But after Fenton, the main parts was FA and Hyl fractions, and COD, DOC and UV_(254) of the two parts were 97.6%、95 2% and 95.1% in total DOM , respectively. Before Fenton reaction , the organic matters with MW>4 k was main part of HA, and the organic matters with MW <4 k was the main part of FA and AyI.After Fenton reaction, all the three fractions were mainly composed of organic matters with MW<4k. And in all the removal efficiency for the HA, FA and Hyl followed HA>FA>Hyl .
