厌氧折流板-好氧反应器处理染废水中试试验研究

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1、哈尔滨T稗大学硕十学位论文ABSTRACTPrintinganddyeingwastewaterbelongstohighlyconcentratedandr．difficultlydegradableorganicwastewater,whichisdifficulttobereleaseduptostandardbyconventionalbiologicaltreatment．Afteranalyzingthecharacterofprintinganddyeingwastewaterandthepracticalwastewatertreatmenttechnologyrou

2、teofasewagedisposalplantinZhejiangProvince，webringforwardtheplanthroughwhichthetechnologyrouteof“anaerobicbaffledreactor(ABR)一crossflowaerobicsludgereactor(CFASR)”isutilizedtotreatthiskindofwastewater．LongtermoperationeffectofABRtechnicssystemisexaminedandresultsshowthatundertheconditionthatHRT

3、is11-12h，theanaerobicinfluentpHisunregulated，theaverageinfluentCOD，BODandSSvalueare1076m叽550me．a．and404mg／Lrespectively,theaverageeffluentCOD，BODandSSvalueare621mg几444me．／Land183mg／Lrespectively,andtheaverageCOD，BOD，SSremovalrateare42％，19．2％and48．6％respectively．AbovedataindicatethatABRpossesses

4、finerremoveleffecttoCOD，BODandSS．TheaveragevalueofinfluentB／CisO．56，andtheaveragevalueofeffluentB／Cis0．68．TheelevationofB／Cindicatestheimprovementofbiochemicaldegradability．TheaverageinfluentVFAis2．05mmol／L,theaverageeffluentVFAis1．77mmol／L,andtheVFAremovalratevariationrangeis一82-55％．Thenegativ

5、eVFAremovalrateindicatesthatthereexistsaccumulationof嘲inthereactorandthe．广acidificationeffectisfiner．WhenCOD／S042‘(m／m)islessthan1．0duringtheprevious60days，theS042。removalrateishigh，between50％and70％；during60一90d，the5042‘removalrateisdecreasedto10—40％，whichindicatesthatSRBdonotdominatealreadywhi

6、lemethanogensandacid—producingbacteria(AB)do．ThroughanaerobicreactiontreatmentbyABR，effluentNH4+·Nrisesslightly,effluentTNdeclinesslightlycomparedwithinfluentTN，andTPcontentIIIC，．^哈尔滨丁程大学硕十学位论文inwaterrises，SOthelatteraerobicmicrobeswillbebeneficialtogrowwell．AccordingtotheprocessingeffectofABRt

7、oprintinganddyeingwastewater,theoptimaloperatingparametersofABRaredetermined：thestartupHRTiscontrolledat60-30h，andthesteadyoperationHRTisat11—12h；thestartuppHis7—8，andthesteadyoperationpHis7—9．5；thestartupMLSSis45v／t,andthesteadyo