一体式管式膜mbr处理餐饮废水的实验研究

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1、ABSTRACTTheresearchaimedatthecampuscateringwastewater．Firststartedwiththeinvestigationofwaterquality，thenAOprocesscombinedwithtubularmembraneMBR(TMBR)wasadoptedtotreatingcateringwastewaterreferringtothewaterqualityreports．Domestictubularmembraneusedfortreatingc

2、ateringwastewaterwasrarelyreported，membranemadeofPVDFwaschosenasthetubularmembrane．Treatmenteffectswerebeingcheckedinthestudy．HydraulicRetentionTime(HRT)，SludgeRetentionTime(SRT)，sludgeconcentrationandquantityofrefluxdecidedtreatmenteffects．ThepropervaluesofHRT

3、，SRT，sludgeconcentrationandquantityofrefluxwerethekeypointstomaketheeffluentqualitymatchthenationstandard．Fromtheangleofcontrollingmembranefoulingandthestudyontheoptimizationofaerationparameters，numericalmodelexperimentsimulationandfilterexperimentwerecombinedi

4、nhelpingstudyingtheflowfieldintheverticaltubularmembraneandtheoptimizedaerationmode．Firstly，theoilinthecateringsewagewastrappedandthewastewaterwascoagulated．Theironseriesofcoagulantsandaluminumseriescoagulatingagentinpreprocessingtheoriginalwaterwasinvestigated

5、，whenthealuminumchloridedosageis60mg／L，theeffluentqualityisthebest．Differentworkingconditionsweredesignedreferringtotheimportantfactorsthattookpartintheactivatedsludgetreatmentmethods．ThestudyshowedthatwhentheHRTremainedat10hours，sludgeconcentrationremainedat89

6、／L，effluxratiostayedat300％，thequalityofeffluentisCOD--<50mg／L，TN≤13mg／L，NH3·N一<5mg／L，Oil<一lmg／L，LAS<一0．5mg／L，theturbidityis0．6NTU．It’SbetterthanthedatasofgreenwaterstandardintheGB／T18920-2002

7、uswaterconsumption>．WhentheMBRwasoperatingnormally，thespeedofmembranefoulingcanbecontrolledwellbyphysicalbrushandofflinechemicalclean，whichcanmeettheneedofpracticalapplication．Secondly，theaerationformandaerationwerestudiedandtheresukshowedthattheguideplatecould

8、offermembranechannelgreatervelocityandshearforceprovide．Thevelocnwasreducedby56．62％．Comparingthedifferentamountoftheaeratlon，forthi8№doftubularmembranewith7channels，theexpos