玉米酒精废水处理工艺及启动研究

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1、Abstract一。_—————●—————_—————-—————_——————_———————————————————————————————一AbstractInthisthemaizealcoholwastewatertreatmentprojectofonepaper,regardingalargenumberofdomesticandforeignphnt懿aresearch0bject，throughconsultingofmaizealcoholliteratures，theprocessofmaizealcoholprod

2、uction，thequalitywastewaterandthecurrentsituationofstudyontreatmentforthiskindofwastewaterwerediscussedbriefly,whichhadprovidedtheoreticalbasisfor也eprojectadoptingforintemalcirculationanaerobicreactor(IC)+conventionalactivatedsludgeprocessmaizealcoholwastewater．Byanalyzing

3、thereactionmechanism，operationrulesandaffectingfactorsofICreactorandconventionalactivatedsludgeprocess，thestart-upandoperationconditionofthemainprocessofIC+conventionalactivatedsludgemaizealcoholwastewaterweremainlystudied，whichprovidedasetprocesstreatingofempiricaldatafor

4、theapplicationofthecombinedprocessinthetreatmentforthiskndofwastewater．Inshort，thestudyresultshadcertaintheoreticalsignificanceandvalue．applicationnet、7l，oICreactors(recordedas1撑and2撑respectively)wereinoculatedwimdigestionflocsludgefromHuixianBaiquanWineryanddigestiongranu

5、larsludgefromMengzhouWinery,respectively．Becauseofthedifferentseedingsludge，twodifferentprogramsofstart-upforthetwoICreactorswereadopted，asshownbelow．ARefinoculatedwithseedingsludge，theICreactor(1勺hadbeensoakedbywaterforthreestages．Inthefirst4~5days，andthefollowingstart．up

6、processWasdividedintostage，feedingwastewateroflowCODconcentrationbelowabout3000mg／L；Inthesecondstage，increasingtheCODininfluentgraduallytotheconcentrationoftherawwastewater；Inthethirdstage，feedingtherawwastewater．IntermittentpulsefeedingmodeWasadoptedduringthewholeprocess．

7、Thestart—upprocessoftheICreactor(2开)maintainedastage，i．e．，thewastewaterafterpretreatmententeredtheICreactordirectlV．Sometimelater,iftheVFAineffluentwasbelow400mg／L，thepHiIlemuentwasabove6．5，theremovalefficiencyofCODreached80％，andthegasproductionWasnormal，thefeedingflowWasi

8、ncreasedgraduallyuntiltheorganicthedesignloading．Whenthestart。upofthetworeactorswasloadin