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INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,2014,,,,(,510006)、、、、、[1-2]。,:,,UASB,90d。,24dUASB,,CODCr、VFA、58%、178.0mg/L、4L/d。UASB:CODCr3700mg/L,pH7.5,HRT8h,12kg[CODCr]/(m3·d),35℃。7d,CODCr1328mg/L,CODCr64%,VFA187.1mg/L,pH8.2,14L/d。UASB,22kg[CODCr]/(m3·d)5d4d。:UASB;;;;VFA;:X703.1:A:1009-2455(2014)06-0028-06TreatmentofDendrocalamusmembranaceusMunropulpingandpapermakingwastewaterbyUASBWANGHao,HUYong-you,CHENYuan-cai,Yan-jia,CHENGJian-hua(TheKeyLabofPollutionControlandEcosystemRestorationinIndustryClusters,MinistryofEducation,CollegeofEnvironmentandEnergy,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:Inviewoftheexistingproblemsofpulpingandpapermakingwastewatertreatmentsuchas:longstartingtimeofanaerobicreactorandpoortreatmenteffect,takingtheanaerobicgranularsludgeadoptedforbrewingwastewatertreatmentastheseedsludge,thetreatmentofDendrocalamusmembranaceusMunropulpingandpapermakingwastewaterusingUASBreactorwhichlasted90dayswasstudied.Theresultsshowedthat,UASBreachedaplateauafter24days,andatthatmoment,theremovalrateofCODCrreached58%,themassconcentrationofVFAintheeffluentwaterwas178.0mg/L,andthegasproductionratewas4L/d.TheoptimalconditionforthesaidkindofwastewatertreatmentbyUASBwas:theinfluentmassconcentrationofCODCrwas3700mg/L,thepHvaluewas7.5,theHRTwas8h,theorganicloadwaslowerthan12kg[CODCr]/(m3·d),theoperatingtemperatureofthereactorwas35℃.Aftera7-doperationundertheaboveconditions,theaveragemassconcentrationofCODCrintheeffluentwaterwas1328mg/Lwithanaverageremovalrateof64%,theav-eragemassconcentrationofVFAwas187.1mg/L,thepHvalueoftheeffluentwaterwasabout8.2,theaveragegasproductionratewas14L/d.Itcouldbeseenthat,UASBhadgoodshockloadingresistingandrecoverycapa-bility,therefore,evenhadbeensufferedtheorganicloadingimpactashighas22kg[CODCr]/(m3·d)for5days,thereactorcouldstillresumenormaloperationwithin4days.Keywords:UASB;DendrocalamusmembranaceusMunropulpingandpapermakingwastewater;degradation;anaerobicgranularsludge;VFA;shockloadingUASB·28·,[3-6],CODCr45%[7]。,(UASB)。、、[8-9],,,(HRT)(OLR)[10],。,UASB,HRT、,UASB[10-11]。UASB,HRT,UASB,UASB,,UASB。11.11。UASB。,,200mm,300mm。,100mm,800mm,6.3L,。,35~38℃。5,200mm。1.2UASB,CODCr1000~4500mg/L,、、350∶5∶1[12]。,1。pH,20%pH7.8±0.2。1.3EGSB。TSS29.3g/L,VSS22.04g/L,。1.4UASB,,UASB2。,,HRT,,、SEM,。1.5CODCr;pHpH;LML-1;(VFA)[13];;[14];Zeiss1Fig.1ExperimentaldevicepH/ρ(CODCr)/(mg·L-1)11.0~11.52000~25003500~3600ρ(TP)/(mg·L-1)ρ(TN)/(mg·L-1)ρ(SO42-)/(mg·L-1)7.0~7.870~74102~1061Tab.1Wastewaterquality28~3233~3738~4344~4950~56/%907050300/%103050701002Tab.2Ratiosofpapermakingwastewaterininfluentwateratdomesticationstage,,,:UASB·29·INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,2014 Supra55。22.1UASB2.1.1CODCrUASBCODCr2、3。UASB27d。23,27d,10%30%,CODCr90%,9L/d。50%,CODCr(700±50)mg/L,CODCr(78±2)%,5L/d。,CODCr。100%,CODCr(1550±10)mg/L,CODCr(57±1)%,4L/d。CODCr45%~66%[15-16],。2.1.2pHVFAUASBpHVFA4、5。pHVFA[17],pH,UASB,UASBpH。45,UASB,pH7.5~8.0,50%70%,VFA,46VFA229mg/L。,pHpH6.87.8,,,VAF,,pH。CODCr,VFA,2UASBCODCrFig.2CODCrremovaleffectduringUASBreactorstart-up714212835424956t/dρ(CODCr)/(mg·L-1)500040003000200010000 /%1008060402003UASBFig.3GasproductionduringUASBreactorstart-up714212835424956t/dρ(CODCr)/(mg·L-1)500040003000200010000CODCr/(L·d-1)151296304UASBpHFig.4VariationofpHvalueduringUASBreactorstart-up714212835424956t/dpH129630500040003000200010000 CODCrpHpHpHρ(CODCr)/(mg·L-1)5UASBVFAFig.5VariationofVFAconcentrationduringUASBreactorstart-up714212835424956t/dρ(CODCr)/(mg·L-1)5000400030002000100005004003002001000 CODCrVFAρ(VFA)/(mg·L-1)·30· [18]。2.2UASB2.2.1HRTUASBHRT。HRT24、18、12、84h,OLR3.7、4.8、7.4、11.122.0kg[CODCr]/(m3·d)。HRTCODCr6。OLR、pH、VFA7、8、9。6~9,HRT、OLR24~8h、3.7~11.1kg[CODCr]/(m3·d),HRT,CODCr、VFA,CODCr、,pHpH,3d。,,OLR,,[19]。HRT8h,OLR11.1kg[CODCr]/(m3·d),,CODCr1400mg/L,VFA190mg/L,14.4L/d,pH7.8。HRT4h,OLR22kg[CODCr]/(m3·d),CODCr,CODCr,VFA。5,CODCr2026mg/L,CODCr45.6%,VFA684.5mg/L,pHpH6.335.05,,9.9L/d,[20]。HRT8h,4,,,CODCr(1330±20)mg/L,CODCr(64±1)%,VFA(180±10)mg/L,(14.5±1)L/d。,(≤5d)UASB,UASB。UASB。:,,,,,;,2,6HRTCODCrFig.6RelationshipbetweenremovalrateofCODCrandHRT 71421283542t/dρ(CODCr)/(mg·L-1)40003000200010000/%100806040200HRT24hHRT18hHRT12hHRT8hHRT4hHRT8h7OLRFig.7RelationshipbetweenOLRandgasproduction 71421283542t/d/(L·d-1)2016128402520151050OLR/(kg[CODCr]·m-3·d-1)OLR8OLRpHFig.8RelationshipbetweenOLRandpHvalue71421283542t/dpH987652520151050OLR/(kg[CODCr]·m-3·d-1)OLRpHpHpH 9OLRVFAFig.9RelationshipbetweenOLRandVFAconcentration71421283542t/d100080060040020002520151050OLR/(kg[CODCr]·m-3·d-1)OLRVFAρ(VFA)/(mg·L-1),,,:UASB·31·INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,2014 ,。2.2.2UASBUASB,10、11。10,UASB,0.3mm37.35%31.10%,0.3~0.9mm、0.9~1.6mm、1.6~2.5mm16.65%18.55%、14.05%16.85%、24.15%25.70%,2.5mm。,[21]。11,UASB,0.3mm、0.3~0.9mm、0.9~1.6mm、1.6~2.5mm、2.5mm21.88、34.47、56.06、71.86、85.86m/h23.48、39.37、60.63、76.27、92.41m/h。,、,,,。12。,。12(a)12(b),,。,。12(c),,。,,[22],10UASBFig.10VariationofgranularsludgegraindiameterduringthestagesofUASBst
本文标题:UASB处理黄竹制浆造纸废水的研究
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