氧化剂预处理垃圾渗滤液的研究

《氧化剂预处理垃圾渗滤液的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、西南交通大学硕士学位论文氧化剂预处理垃圾渗滤液的研究姓名：刘书申请学位级别：硕士专业：环境工程指导教师：郑爽英;魏永宁20080601西南交通大学硕士研究生学位论文第1I页AbstractContentoforganicmatterishighinthelandfillleachate，themajorityofthemiscomplexorganicmacromoleculeswhicharemoredifficulttodegradate，highammonianitrogencontentwhichincreaseswiththenumberoflandfillyears．L

2、eachatealsocontainsclassofaromaticcompoundscontainingbenzeneringwhichiswithbiologicaltoxicity．Thetraditionalbiologicalorphysicalchemistrytechniquescannotmakethewastewatercleanenoughtosatisfythetreatmentcriteriaatanacceptableexpense．Thusitisadifficultproblemtobesolvedtotreatthelandfillleachatei

3、nthecityenvirionment．Theexperimentofpretreatinglandfillleachateadoptchemicaloxidationmethod，makingCOD，ammonianitrogen，aromaticcompoundsachievesabetterremovaleffectiveness，andfurtherstudythespecificdegradatingsituationofaromaticcompoundsphenol，therebyreducingthebiologicaltoxicityandprovidingago

4、odconditionforfollowingbiologicaltreatment．Threekindsoxidantsincommonwhicharesodiumhypochlorite，calciumhypochlorite，potassiumpermanganatewerebeselectedtopretreatlandfillleachateforcomparativeexperiment．Thebestoxidantswerebeselectedbycomparingtheexperiment，tostudythebestremovalofCOD，ammoniacond

5、itionsbyorthogonalexperimentalmethodandstudytheoxidationcharacteristicsofthesyntheticaromaticcompounds．Theanalysesandresearchesoftheexperimentalresultsshowthat：comparieswiththeothertwooxidants，pHvalueinaround9，sodiumhypochloritehasthebesteffectonthetreatmentofleachatefortheremovalofCODandammon

6、ianitrogen．TheaffectedprimaryandsecondaryfactorofCODremovaleffectivenessistheamountofsodiumhypochlorite—呻reactiontime—}temperature，theaffectedprimaryandsecondaryfactorofammonianitrogenremovaleffectivenessistheamountofsodiumhypochlorite—·temperature—啼reactiontime．ThebestCODremovaleffectivenesst

7、echnologicalconditionsoftreatingleachatearethattheamountofsodiumhypochloriteiS10m1．reactiontimeis45min，temperatureis50"C，thecorrespondingremovalrateofCODis西南交通大学硕士研究生学位论文第1II页●II●●___--●________●●--●●__●一25．21％，thebestammonianitrogenrem