采用厌氧序批间歇式反应器处理屠宰废水试验研究张文艺

186200211TransactionsoftheCSAEVol.18　No.6Nov.　2002张文艺()　:(ASBR)。。ASBR、、、CODcr。,、、ASBR,CODcr1100～3000mg/L,24h,75%。ASBR:SV30=35%～46%,25～35℃,24h,0.2～0.5kg/(kgMLSS.d)。:厌氧序批间歇式反应器(ASBR);屠宰废水;CODcr:X784　　　　:A　　　　:1002-6819(2002)03-0127-04:2001-11-20:(2002KJ035,2002KJ050):(1968-),,,,:,21。,243002。E-mail:[e-mail]1　ASBRASBR(AnaerobicSequencingBatchReactor)2090RichardR.Dague“”,。(SRT),,,(HRT),,[7]。1。图1　ASBR工艺的运行模式(一个循环周期)Fig.1　CirculationmodeofASBR(acirculatingcycle)①:,、,。②:(CH4、CO2),:、、、。③:,,。④:,,。,,、。2　2.1　2。,q=50mL/min(h=1h)3L(5L),(),。,。图2　试验装置示意图Fig.2　Schematicdiagramofthetestunit2.2　,:1　Table1　QualitiesofwastewaterpHSS/mg·L-1/mg·L-1CODCr/mg·L-1BOD5/mg·L-16～7.5250～65047.82～298.941104～2816587～10436.8417173.3819607382.3　《》(3)[5]。CODcr;-;pH;MLSS;SV30。2.4　。127,。23,,,。CODcr1217mg/L,28h,CODcr372mg/L,69.4%,,2CODcr。2　CODcr()Table2　TestresultsofCODcrremovalforcultivationanddomesticationofASBR(part)CODcr/mg·L-1CODcr/mg·L-1/%2001-02-23112062444.292001-03-14138578143.612001-04-09119657651.842001-04-21121737269.43　3.1　ASBR:。,();。。3.2　(ASBR),Monod,。。,。,4,。1():,;2():,1,3min;3():,1.5min,2min1;4():。3。3　Table3　Effectsofagitationonremovalrates　CODcr/%143.37285.23385.84430.123,,。,,,,。3.3　CODcr3.3.1　污泥量SV30对出水CODcr的影响SV30,24h,20℃,2.5L,1h,,3。图3　污泥量SV30与出水CODcr去除率的关系Fig.3　RelationshipbetweenCODcrremovalrateandSV303,CODcr,SV30=35～46CODcr75%,SBR。3.3.2　进水pH值对出水CODcr的影响,pH4～9,6.5～8.5,Wilkinson(1975),,。pH6.0～8.0。,,pH5.0,pH7.0,pHCODcr,4。,,pH6.5～7.5CODcr。图4　进水pH值与CODcr去除率的关系Fig.4　RelationshipbetweenCODcrremovalrateandpHvalues3.3.3　环境温度对出水CODcr的影响Dague[2]ASBR35℃、25℃、20℃、15℃,80%～90%,ASBR(CODcr=400～1000mg/L)。CODcr1100～3000mg/L,ASBR,10℃、15℃、20℃、25℃、36℃1282002　,ASBRCODcr,45。,ASBR,。36℃,CODcr80.53%、88.52%(4)。5ASBR25℃。4　CODcrTable4　EffectofexternaltemperatureoneffluentCODcr/h/℃101520253624CODcr/mg·L-111201120211224321808CODcr/mg·L-1624489704656352/%44.2956.366.6773.0380.5348CODcr/mg·L-111191120243218081952CODcr/mg·L-1336319576400224/%7071.576.3277.8888.52图5　反应器温度与CODcr去除率的关系Fig.5　RelationshipbetweenCODcrremovalrateandreactortemperature3.3.4　运行时间对出水CODcr的影响529℃,CODcr。,CODcr,96h,CODcr98.36%。5　CODcr(T=29℃)Table5　EffectsofagitatedtimeonCODcrremovalrates(T=29℃)/h12244896CODcr/mg·L-1986119617761952CODcr/mg·L-152457656032/%46.8651.8468.4798.364　　1)ASBR。,30℃,24h,CODcr75%,,。ASBR,。,。ASBR:、SV30=35%～46%,25～35℃,24h,0.2～0.5kg/(kgMLSS.d)。2)ASBR[2]。、CODcr,[7]99%CODcr。3)ASBR,。,,,。4)USAB,ASBR:①ASBRSBR,,,UASB、,SBR、,、;②ASBR、、,,,;③ASBR,;④ASBR(F/M),,,。5)ASBR,,,。,、、(、)、,ASBR。[　　　][1]　H.Timur,etal.Anaerobicsequencingbatchreactortreatmentoflandfillleachate[J].AmericanWaterResearch,1999,33(15):3225～3230.[2]　DagueRR,etal.Initialstudiesontheanaerobicseq-uencingbatchreactor[J].AmericanWaterSci.Tech,26,2429～2432.[3]　.SBR[J].,2001.28～30.[4]　　.(ASBR)[J].,1997,l23(4):18～24.[5]　.(3)[M],1989.5.[6]　.(ASBR)[J].,2000,16(10):1～5.[7]　.ASBR[J].,2000,(1):84～90.129　3:ExperimentalStudyofAbattoirWastewaterTreatmentbyAnaerobicSequencingBatchReactorZhangWenyi(ChemicalandEnvironmentalEngineeringDepartment,AnhuiUniversityofTechnology,Ma'anshan243002,China)Abstract:AnaerobicSequencingBatchReactor(ASBR)isanewtypeofanaerobicreactor.Inthispaper,ASBRwasusedtotreatabattoirwastewater.ThestudyfocusedontheinfluenceontheefficiencyofCODcrofASBRprocessaswellastheinfluenceontheefficiencyofremovalrateofCODcrextertedbypHvalue,anaerobicreactiontime,temperature,andimpactload.Theresultshowedthatthemostimportantfactorswerethemethodsofagitation,temperature,andreactiontime.TheremovalefficiencyofCODcrreached75%wheneffluentCODcrwas1100～3000mg/L,andanaerobicreactiontimewas24h.TheoptimalconditionsofASBRfortreatingabattoirwastewaterisasfollows:usingintermissionagitationmethod,SV30=35%～46%,temperature25～35℃,reacttime24h,impactload0.2～0.5kg/(kgMLSS.d).Keywords:anaerobicsequencingbatchreactor(ASBR);abattoirwastewater;CODcr　　、、。,,、,。1　1)、。,,;,、,;,。2)、()。。、,,。,。3)、。、、、,。“”,1),2)3)。2　1),。,。。　　2),。,,。、、,,。3),。,,,,。“”、“”、“”;,“”、“”、“”、“,”。,、。4),。,,,。5),。6),,、。,600。(王应宽供稿)1302002