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1、英文原文Sludgereductionduringbrewerywastewatertreatmentbyhydrolyzation-foodchainreactorsystemAbstract:Duringbrewerywastewatertreatmentbyahydrolyzation-foodchainreactor(FCR)system,sludgewasrecycledtotheanaerobicsegment.Withthefunctionofhydrolyzationacidific
2、ationintheanaerobicsegmentandtheprocessesofaerobicoxidationandantagonism,predation,interactionandsymbiosisamongmicrobesinmultileveloxidationsegment,residualsludgecouldbereducedeffectively.The6-monthdynamicexperimentsshowthattheaveragechemicaloxygendema
3、nd(COD)removalratiowas92.6%andaveragesludgeproductionoftheaerobicsegmentwas8.14%,withtheCODoftheinfluentat960–1720mg/Landhydraulicretentiontime(HRT)of12h.Sincetheproducedsludgecouldberecycledandhydrolyzedintheanaerobicsegment,noexcesssludgewasproducedd
4、uringthesteadyrunningforthissystem.Keywordshydrolyzation,multileveloxidation,excesssludge,reduction1.IntroductionDuringthe1980s,themainbrewerywastewatertreatmentlocallyandabroadwastheaerobictechnique,thenthehydrolytic-aerobictechniquesshowedupinthelate
5、1980s.Currently,themaintechnologyforbrewerywastewatertreatmentaretheactivatedsludgeprocess,contactoxidationprocess,andhydrolytic-aerobictechniques.Althoughthesetechniqueshavesomeadvantagesoftheirown,theyallhaveaproblemwithsludgedisposal[1].Thesludgepro
6、ductionisabout60%ofthechemicaloxygendemand(COD)removalamountforconventionalactivatedsludgetechnology,andabout30%forconventionalbiofilmmethod[2].Thecostofsludgedisposalhadbecomeaneconomicburdenofthesewageplant.Thesludgeproducedmaybringaboutsecondarypoll
7、ution.Therefore,thestudyonwatertreatmentprocessesthatcanleadtosludgereductionisbecomingoneoftheimportantissuesinsewagetreatment.Thisstudyadoptedprinciplesofcleanerproduction.Withthehydrolyzation-acidificationinanaerobicsegments,residualsludgecouldbetra
8、nslatedintosolubleorganicmatterandsmallorganicmolecules,thenentertheaerobicsegmentasorganicload.Aseriescontactoxidationsystemforfoodchainreactor(FCR)wasappliedintheaerobicsegmenttoformamanualbiogeocenoseandfoodchain.Basedonbiologicalthe
