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1、西南交通大学硕士学位论文准好氧填埋加速垃圾稳定的现场试验研究姓名：严勃申请学位级别：硕士专业：环境工程指导教师：刘丹;郑乃明20070501西南交通大学硕士研究生学位论文．第ff页AbstractSanimrylandfillingisthemostprincipalmethodsofmunicipalsolidwastedisposalatpresent．Butanaerobic1andfillisdominated,theanaerobiclandfilliSaclosedsystem,thewaterandairoutsidecannotiIlnDduceintoth
2、ewastelayer,SOtherateofthewastedecomposeisslowly,andtheprocessofstabilizationisslowlytoo．’Semi-aerobiclandfillingisbasedonanaerobiclandfillingtechnology,theendoftheleachatecollectingpipeisopentoair,SO．atthegradeoftemperaturebetweenthewaste1ayerandoutsides．air伽beintroducedintothewastelayer,
3、thatcanacceleratethewastedecompose．Based011the】oeatesemi-aerobiclandfillandleachatemcirculafion,thispaperdiscussthemechanismandinfluencefactorsofacceleratestabilization．Throughthestudyoftheleachatequalityofthethreelocaleexperimentalunit,theresultsshowthat；withlcachatere,circulation,theeffe
4、ctofsemi—aerobiclandfillwasteespeciallytheorganiccontaminationdecomposedobviously．After300daysoftheexperiment,theCODconcentrationofthethreeexperimemunitdroppedfrom26172．34mg／L、72435．28mg／L、65324．24mg／Lto3466．29mg／L、4447．58mg几、6618．43mg／Lseparately,theremovalmteis86．76％、93．86％and89．87％．thec
5、oncentrationofBODdroppedfrom21012．23mg／L、42800mg／L、33900mg／Lto390mg／L、1100mg／L、1700mg／Lseparately,theremovalmteis98．14％、97．43％and94．99％．Throughsimulateandpredictofthelaechatequality,theCODconcentrationofthethirdunitmeetthefirsteffluentstandardsofleachateafter2．22yearsandafter1．87yearsmeets
6、thesecondeftuentstandards．Atthesanletime．theBODconcentrationofthethirdunitmeetthefirsteftuentstandardsofleachateafter1．33yearsandafter1．15yearsmeetstheseconde儡uentstandards．Fortheperiodtheexperimentisshort,theremovaleffectofammonia-nitrogenisnotobviously,butfromtheresultofsimulate．血econcen
7、trationofammonia-nitrogenmeetthefirsteft]uentstandardsof1eachateafter2．30yearsandafter2．11yearsmeetsthesecondeflluentstandards。fromtheresult,thedecompose越teofammonia-nitrogeninsemi—aerobiclandfillisfasterthananaerobiclandfiU．Fromthewastedecomposeofthethreeexpe
