作　　者： ; ; ; ;

机构地区： 华南理工大学环境科学与工程学院

出　　处： 《环境工程学报》 2010年第12期2709-2713,共5页

摘　　要： 以采用"SBR+混凝+Fenton氧化+BAF"组合工艺处理的晚期垃圾渗滤液各级出水为研究对象,考察了HA、FA和HyI等溶解性有机物(DOM s)在各个工艺处理过程中的变化。结果表明,组合工艺COD和NH3-N去除率分别达到98.4%和99.3%;对DOM s的去除率为98.3%,其中胡敏酸(HA)、富里酸(FA)和亲水性有机物(HyI)的去除率分别为98.3%、99.5%和95.7%。各处理工艺中SBR和混凝工艺对HA和HyI的去除贡献较大,Fenton氧化工艺对FA去除率较高。Fenton氧化和BAF联用,可以有效去除难降解的溶解性有机污染物,使出水达到《生活垃圾填埋污染控制标准》(GB16889-2008)排放标准。 SBR＋coagultation ＋Fenton oxidation＋biological aerated filter（BAF）,as a combinnation process,was used to treat landfill leachate.The treated effluent of each treatment process was analyzed,and the removal performance of dissolved organic matters（DOMs） such as humic acid（HA）,fulvic acid（FA） and hydrophilic（HyI） fractions containning in leachate were investigated.The results showed that 98.4% of COD and 99.3% of NH3-N were removed,whereas 98.3%,99.5%,95.7% and 98.3% of HA,FA,HyI as DOMs were removed respectively in this combination process.SBR and coagulation process became predominating in removal of HA and HyI,and Fenton reagent has a favorable treatment efficiency of FA.Fenton oxidation process followed BAF could remove recalcitrant organic pollutants effectively,ensuring the effluent to satisfy with the GB16889-2008 discharge standard.

关 键 词： 溶解性有机物 胡敏酸 富里酸 亲水性有机物

领　　域： [环境科学与工程]