EGSB反应器处理高浓度豆制品废水的研究孙凯

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、。COD10000mg·L-120000mg·L-1N、PpH[1]。。[2-4]。ExpandedgranularsludgebedEGSBWageningenLettinga2080Upflowanaerobicsludgeblan-ketUASB3、、[5][6]、[7]、[8-9]。[10]。EGSB。EGSB。32~37℃EGSBCOD、OLR、HRT。11.11EGSB200cm25cm98L32~37℃。1.2。EGSB111211.2018002.P7B5E132~37℃EGSBCOD1000~13000mg·L-1180dCOD、OLRHRT。。EGSBCOD2~6.75kg·m-3·d-1HRT48hCOD、BOD585%COD10000mg·L-1HRT24hOLR10.2kg·m-3·d-1。CODCH40.08~0.14L·g-160%~75%。EGSB、。X792A1000-3770(2010)08-0108-0052009-10-21082312003001983-021-59555119E-mailxflu@sinap.ac.cn36820108TECHNOLOGYOFWATERTREATMENTVol.36No.8Aug.,2010108DOI:10.16796/j.cnki.1000-3770.2010.08.027pHNaHCO3pHpH6.8~7.2。1.3CODAQUALYTICPotometerSystemPCMulti-DirectNH4+-NAQUALYTICPotometerSystemPCMultiDi-rect-TNAQUALYTICPotometerSystemPCMulti-DirectBOD5AQUALYTICBOD5-pHModel868pHNaOH。1.41dMLSS12.69g·L-1。8.42g·L-1SS。COD1000mg·L-1。Ca2+、Fe2+、Mg2+、Co2+、Ni2+。22.120092180dCOD1000mg·L-113000mg·L-1OLR16.7kg·m-3·d-1HRT15~48h。8.42g·L-18~20g·L-1。180d10.3m3COD66.4kg7.80m3、CH470%。60d150d30~60d、60~150d、150~180d。2.1.1180d、2。COD1000mg·L-130%。COD70%~80%。23dOLR。COD85%90%。COD12000mg·L-1COD1500mg·L-185%。BOD5COD3。BOD570%BOD585%。BOD5400~1000mg·L-1。BOD5/COD0.47~0.720.44~0.78。2.1.2TNEGSB2CODCODFig.2VariationsofCODconcentrationsofinfluent&effluentandCODremovalefficiencieswithoperationaltime01020304050607080901000204060801001201401600200040006000800010000120001400016000COD/mgL/dCOD 1Fig.1Schematicdiagramofexperimentalequipment   MBR   SSSSCO!EGSB109。EGSBNH4+NO2-NH4+NO2-。NO2-NO3--N[11]50%~60%。NH4+-NNH4+-NTN。NH4+-NTN4、5。EGSBNH4+-NTNTN35%。EGSBNH4+-NNH4+-NNH4+-NNH4+-N。2.1.3CODCH40.03L·g-10.14L·g-1。CH4CO2N23%、H2S0.03%NaOHCO2CH4CH460%~75%。CODCH40.08~0.14L·g-1Zhu[2]。6。Bing-TeoWong[12]OLRCODOLRCH4。。。[13]。6Fig.6VariationsofbiogasyieldrateofthereactorandCH4contentwithoperationaltime01020304050607080901000204060801001201401601802000.000.050.100.150.200.250.300.35/Lg/d CH 100110120130140150160170180190200050100150200250300350400/d(NH-N)/mgL4NH4+-NFig.4VariationsofNH4+-Nconcentrationsofinfluent&effluentefficiencieswithoperationaltime202530354045100110120130140150160170180190200200250300350400450500550(TN)/mgL/dTN 5TNTNFig.5VariationsofTNconcentrationsofinfluent&effluentandTNremovalefficiencieswithoperationaltime0102030405060708090100020406080100120140160010002000300040005000600070008000BOD/mgL/dBOD 3BOD5BOD5Fig.3VariationsofBOD5concentrationsofinfluent&effluentandBOD5removalefficiencieswithoperationaltime368110。HRTHRTOLRFakhru'l-RaziNoor[14]。2.2EGSBOLR17.5kg·m-3·d-1[7]SS[8-9]。CODSSEGSB。48hCODCOD13000mg·L-1OLR2~6.5kg·m-3·d-1OLREGSB。OLR5~20dOLRCODCOD7。7CODOLRCODCOD85%~90%。EGSBEGSB。2.3COD10000mg·L-1EGSBHRT。HRT5~7HRTHRTCOD8。8HRT24hOLR10kg·m-3·d-1EGSBCOD85%~90%HRT24hOLR10.2kg·m-3·d-1COD85%HRT18hOLR14.1kg·m-3·d-180%HRT15hOLR17kg·m-3·d-1EGSB65%。。8EGSBHRTHRTHRT24hCOD、BOD585%。332~35℃EGSB2~6.75kg·m-3·d-1COD1000~13000mg·L-148hCOD、BOD585%。EGSBOLRHRTCODCOD10000mg·L-124h24h。OLR10.2kg·m-3·d-1。6065707580859095100101520253035404550020004000600080001000012000COD/mgLHRT/hCOD8HRTFig.8EffectofHRTontheperformanceofthereactor7Fig.7EffectofOLRontheperformanceofthereactor70758085909510023456702000400060008000100001200014000COD/mgLOLR/kgmdCODEGSB111TREATMENTOFHIGHSTRENGTHSOYBEANPROCESSINGWASTEWATERWITHANAEROBICEGSBREACTORSunKai1,LuXiaofeng1,ZhouBaochang1,LinHongjun2,HouZhengchi1(1.ShanghaiInstituteofAppliedPhysics,ChineseAcademyofSciences,Shanghai201800,China;2.DepartmentofChemicalEngineering,LakeheadUniversity,ThunderBayP7B5E1,Canada)Abstract:Alaboratory-scaleexpandedgranularsludgebed(EGSB)reactortreatinghighstrengthsoybeanprocessingwastewater(CODwas1000~13000mg·L-1)wasoperatedatmesophiliccondition(32~37℃)forover180days.Theeffectsoforganicloadingrate(OLR),hydraulicretentiontime(HRT)andotherfactorsonthesystemperformancewereinvestigated.Aerobicsludgewasinitiallyinoculatedinbioreactorandgraduallycultivatedtoanaerobicgranularsludgeafter2monthsoperation.UndertestedOLRof2~6.75kg·m-3·d-1andHRTof48h,CODandBOD5removalefficienciesofover85%wereachieved.TheoptimalHRTwasfoundtobeabout24hat10000mg·L-1feeding(OLRwasabout10.2kg·m-3·d-1).Duringstableoperationalperiods,approximate60%~75%methanewasfoundinthebiogaswithanoverallmethaneyieldof0.08~0.14L·g-1.TheresultsindicatethattreatmentofhighstrengthsoybeanprocessingwastewaterwithEGSBreactorisefficientintermsoforganicremovalefficiencyandbiogasyield.Keywords:expandedgranularsludgebed(EGSB)reactor;soybeanprocessingwastewater;organicloadingrate;hydraulicretentiontime35%TNNH4+-N2CODCH40.08~0.14L·g-1CH460%~75%。[1],,.[J].,2000,18(3):13-16.[2]ZhuGF,JZLi,etal.Theperformanceandphaseseparatedcharacteristicsofananaerobicbaffledreactortreatingsoybeanproteinprocessingwastewater[J].BioresourceTechnology,2008,99(17):8027-8033.[3]UemuraS,HHarada,etal.Treatmentofwastewatercontainingalargeamountofsuspended

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