EGSB处理啤酒废水的酸化问题及对策

Vol135No12200959EGSB112223(1,530004;2(),537300;3,537300)EGSB,EGSB,pH,EGSBpH353815615715,EGSBEGSBCountermeasuresforacidificationinbeerwastewatertreatmentbyEGSBYangFei1,YuZebin1,XiongQingming2,NiXuanzhi2,ChenChao2,LiYuzhong3(1.SchoolofEnvironment,GuangxiUniversity,Nanning530004,China;2.YanjingBeer(Yulin)LimitedCompany,Yulin537300,China;3.YulinCityEnvironmentalProtectionResearchInstitute,Yulin537300,China)Abstract:Inthebeerwastewatertreatmentbyexpandedgranularsludgebed(EGSB)process,theacidificationisoneofmainquestionsinsystemnormaloperation.Themaincausesoftheacidificationaretheorganicloadimpact,thealkaliimpact,thehightemperatureimpactandsoon.ThisarticleanalyzesthecausesofacidificationinEGSBsystemforbeerwastewatertreatment.Bycontrollingthetemperature,pHandthewaterquantity,theEGSBtemperatureandthepHvaluearekeptrespectivelyduring3538.5and6.57.5,thustheEGSBsystemisrestoredtothenormalcondition.Keywords:EGSB;Beerwastewater;Acidification;CountermeasureCODCr20003500mg/L,BOD/COD015016,UASB-SBREGSB-CASS[1]EGSB-CASS,CASS,CODCr75%90%,EGSB,,EGSB,,EGSB11,,,,pH,EGSB,EGSB,CASS,(GB198212005)60Vol135No1220091EGSBÁ12m18m4000m3/d,HRT1212h,,2000m3/d,HRT24h2pH,;,(),,pH;,,pHpH:pH()[2]pH,,[2]EGSB,pH,pH615715,pH,pH5815EGSBpHEGSB,,EGSBpH618712;,EGSBpH615715,pH6615,,;pH6,,,;pH513,[3]2112000m3/d,3828m3/dEGSBpH11,,,(3815)1EGSBpH3:007:0011:0015:0019:0023:009m/3810391039123912341534101mpH6140612861206106518961223mpH6167614961316100610461355mpH6169616161376148519961339mpH617561856140615161066143,,,:(1)NaOHEGSBpH,pH89EGSBpH,EGSB,NaOHpH89,EGSB,,,,,(2)EGSB,EGSB,,,,(3)1,EGSB3815,,3815,,EGSB(4)EGSB,EGSBEGSBpH22,EGSB,EGSBCODCr3325118mg/L,EGSBCODCr1101mg/L828152mg/L,7511%,212()EGSBVol135No122009612EGSBpH3:007:0011:0015:0019:0023:009m/3812371838103718381236101mpH6138615071487148618561653mpH6128614961676182710561975mpH6126615061686173618961919mpH612861606173618661986196pH,,,(3815),(3)3EGSB3:007:0011:0015:0019:0023:00/381038163616381238103910pH81241118310126917481827132EGSB9m/381538103914381538153818EGSB1mpH616891508152815771586188EGSB3mpH619691638193719171316188EGSB5mpH619371029108818671926194EGSB9mpH710271067127714171447134pH,,,,(VFA)H2,VFApH,,,,:(1),,EGSB,EGSB(2),CASS,,CASS,(3)CO2,CO2CO2,CO2Na+,EGSBpH4,,EGSBCODCr1101mg/L802mg/L,4EGSBpH3:007:0011:0015:0019:0023:009m/3510341038103813381038101mpH6128615461136174615561473mpH6126613561116115616161475mpH6118612661126124616361759mpH6146615361656188617361943(1)EGSB,,,pH(2)EGSBpHEGSBpH615715,pHCO2(3)EGSB3815,,,(4)pHEGSBpH353815615715,CODCr120mg/L80mg/L1,,.UASB+AS.(),2004,22(3):77802,,..:,20023,,,..:,2001E2mail:xxzx7514@yahoo1com1cn:2008208229:2008211211