UASB处理甲醇废水的实验研究李宁

4　11环境工程学报Vol.4,No.11201011ChineseJournalofEnvironmentalEngineeringNov.2010UASB李　宁1　张　晔2　刘　彪2　杨海亮1　马三剑1＊(1.,215011;2.,215011)　　(UASB)COD。,COD=36000mg/L,70～74kgCOD/(m3·d),COD95%,COD2000mg/L。,。　　　(COD)　X703.1　　　A　　　1673-9108(2010)11-2519-03ExperimentalstudyonthetreatmentofmethanolwastewaterbyusingaUASBreactorLiNing1　ZhangYe2　LiuBiao2　YangHailiang1　MaSanjian1(1.InstituteofEnvironmentalProtectionApplicationTechnology,SuzhouUniversityofScienceandTechnology,Suzhou215011,China;2.SuteEnvironmentalEngineeringCorporation,Suzhou215011,China)Abstract　Theupflowanaerobicsludgeblanket(UASB)reactorwasusedforthetreatmentofmethanolwastewaterwithhighconcentrationatmediumtemperatures.Understeadyrunofthereactor,whentheinfluentCODconcentrationreaches36000mg/L,thevolumeloadingratecanreach70～74kgCOD/(m3·d),theCODremovalratecanbeupto95%andtheeffluentCODconcentrationdropstolessthan2000mg/L.Thissoundexperimentalresultprovidesreliablebasisforpurifyingthehighconcentratedwastewaterofmethanolundertheanaerobiccondition.Keywords　anaerobicreactor;wastewaterofmethanol;chemicaloxygendemand:(A0030803):2009-11-15;:2009-12-31:(1984～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　,、,。,,[1]UASB,11kgCOD/(m3·d),90%。[2],。[3],18kgCOD/(m3·d)、1.098kgCOD/(kgVSS·d),UASB,COD90%。,[4],:4CH3OH※3CH4+CO2+2H2O,,。,、,,。1　1.1　1,,,UASB90mm,700mm,80mm,3L,35±2℃,,。1.2　IC,85%,1.2g/L,,1mm,45kgSS/m3,VSS/SS0.67,1/3。41　Fig.1　Processflowchartoftestequipments1.3　,,、、[5]。。:1000～24000mg/L,400～500mg/L,300～400mg/L,50～200mg/L。COD2000～40000mg/L,pH6～8,NH3-N0～25mg/L,。COD90%。1.4　COD,pH,SS、VSS,(VFA)。2　2.1　,,500～4000mg/L,、COD∶N∶P(200～400)∶5∶1[6],、,[7,8],pH=7.2～7.6,35±2℃。10d,COD2。2　CODCODFig.2　RelationbetweenCODremovalrateandCODconcentrationofinfluentinsludgeacclimationperiod2,,5dCOD80%,7dCOD90%,COD200mg/L,VFA2～3mmol/L,。2.2　,COD(HRT),2。11～41dCOD,36000mg/L,42d。34。COD,3L。3,,4000mg/L,36000mg/L,COD96%。VFA3mmol/L,。COD3000～36000mg/L,,,VFA252011　:UASB。,N、P[9],。36000mg/L,COD,。4,24～12h,,,COD96%,。11h,,,150～300mL/d,COD。5,3kg/(m3·d),COD95%。78kg/(m3·d),98%。80kg/(m3·d),80%,83kg/(m3·d),60%,,VFA8mmol/L,,,UASB70～76kg/(m3·d)。5　CODFig.5　RelationbetweenCODremovalrateandvolumetricloadinginloadincreasingperiod2.3　6,3d,,70d,,50kg/(m3·d),74kg/(m3·d)。COD36000mg/L,12h。20d,94%,COD2000mg/L,pH7.3～7.5,VFA4mmol,COD36000mg/L,74kg/(m3·d),,,。6　CODFig.6　RelationbetweenCODremovalrateandvolumetricloadinginloadstabilizationperiod3　　(1)35±2℃,UASB,7d,、。(2)UASB,70～74kg/(m3·d),COD95%,、。(3)COD3000～36000mg/L,,COD96%,VFA3mmol/L,。(4)COD36000mg/L,24h12h,,COD96%。[1],,,..,2001,17(4):50-52[2],,,..,2007,27(12):32-35[3],,.UASB.,2006,22(7):42-45[4]WeijmaJ.,StamsAJ.M.Mehtanolconversioninhigh-rateanaerobicreactors.WaterScienceandTechnology,2001,44(8):7-14[5],,,..,2008,28(1):29-32[6],..,2004,24(4):633-636[7]LetingaG.,vanderCeestA.T.,HobmaS.,etal.Aneor-bictreatmentofmethanolicwastes.WaterResearch,1979,13(8):725-737[8]LettingaG.,DezeeuwW.,OuboryE.Anaeorbictreatmentofwastewatercontainingmethanolandhigheralcohols.Wa-terRes.,1981,15(2):171-173[9].-.,2004,11(3):55-572521