臭氧化对垃圾填埋场后期渗滤液的预处理研究

第7卷第4期环境污染治理技术与设备Vol.7,No.42006年4月TechniquesandEquipmentforEnvironmentalPollutionControlApr.2006臭氧化对垃圾填埋场后期渗滤液的预处理研究黄报远　金腊华　卢显妍　刘慧璇　唐崇杰(暨南大学环境工程系,广州510632)摘　要　应用自制微孔扩散式接触反应器,考察了不同pH条件下垃圾填埋场后期渗滤液的臭氧化预处理效果。结果表明,渗滤液初始pH值升高,臭氧利用率增大,垃圾渗滤液中COD、腐殖酸的去除速率加快;当初始pH为10时,经臭氧化处理120min后,模拟废水的BOD5/COD可从初始的0.17提高到0.36,改善了废水的可生化性,同时渗滤液的色度、浊度、腐殖酸和SS也有较高的去除率。关键词　臭氧化　垃圾渗滤液　可生化性　腐殖酸中图分类号　X703　　文献标识码　A　　文章编号　10089241(2006)04010304StudyonpretreatmentoflandfillleachateinthelaterstagebyozoneHuangBaoyuan　JinLahua　LuXianyan　LiuHuixuan　TangChongjie(DepartmentofEnvironmentalEngineering,JinanUniversity,Guangzhou510632)Abstract　OzonewastakentopretreatthelandfillleachateinthelaterstageatdifferentpHinamicro2poroustransfercontactreactorspeciallydesigned.Theexperimentalresultsshowedthattheutilizationrateofo2zoneandtheremovalofCODandhumicacidinleachatewasimprovedasinitialpHwasincreased.After120minozonationatinitialpH10,thevalueofBOD5/CODoflandfillleachateinthelaterstagewasimprovedfrom0.17to0.36,whichreflectedthatthebiode