1、天津大學(xué)碩士學(xué)位論文膜技術(shù)處理活性污泥水解蛋白液實驗研究姓名：徐林申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：張衛(wèi)江20080601ABSTRACTProteinsolutionfromhydrolysis(PSH)ismadebyactiVatedsludgehydrolysisinsewagetreatmentpl砒andneedt0beconcentratedfurtherbeforebeingusedButthistechnolo

2、gyislim“edbecauseofthehighercost謝lichisrequiredbyheatingconcemrationItisnecessa呵toconcentratethePSHatlowercostInthispaper，thequalityofPSHwasanalyzedBasedontheresultsofwaterqual耐analysis，theMechanical行1tration—MF(UF)ROint

3、egratedmembranesystemswereadoptedto”eatPSHTheconcentrationpolarizationmodelwasbuiltandtheoperatingparametersweredeternlinedMicrofiltration(M暖)wasusedt0removethesuspendedparticles，solidparticles踟dc01loidsinthePSHThemembra

4、neperf0manceofMFwasinVestigatedandappropriateoperationmodewasexploredTheexperimentalresultsshowthatthismode(production：120minutes；bacl(wash1minute；nush3minutes)couldmaintaintllemembrancpe怕rmanceofrejectionandpe腫eabili夠Th

5、eproductturbidi妙ofMOF503membraneisbelowO2NTUandsiltdensityindex(SDI)islessthan3，whichcouldmeettherequirementsofreverseosmosis(RO)feedThenomlalwaterfluxesoftheMOF503MFmembraneis32L／(m2h)atpressureof006MPaWhenwaterflushisi

6、nemcientbecauseofheavypollution，sodiumhydroxidesolutioncouldbeusedascleaningreagentstemovethosefoulingeffectiVeIyTheUPIS503UFmembranecanr旬ectonlyaIittleprotein，andtheprotelnconcen仃ation(PC)ofthepemeatedsolutionisalmosteq

7、ualtothePCinthefeedAsaresuIt，inthescopeofthisexperiment，wethinkitisimpropert0concen仃iltethePSHbyUFTheproductsofMFweretreatI暑dbyREl812—50andULPl812—75ROmembranemodulesTheresultsshowthatROto訓(xùn)proteinrejectionisef矗cientbybo也

8、ofthem，andtheROtotalproteinreiectionisallmorethan99％Whentheoperatingpressureiso9MPaandtheopeTatingcycleis120minutes(flushlminute)，thewaternuxesofULP181275areaboutl626L／m2min，andtheROtotalproteinrejectionismorethan999％The

9、PCofthepemeatedsolutionislessthanO006％Theoperationcanbesustainedbecausethewaternuxesrecoverablerateis867％Butthealkalinenuxesrecoveryrateisonly913％，soitshouldbeimproVedTheconcentrationpolarizationmodel(CPM)wasbuiltaccordi