A2O工艺处理化学制药工业高盐有机废水章程宏

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A2/O1,2,1,2(1.,230009;2.,230009)、、、、、,、、、,。,30%,,,。,,、EDS、。[1-6],、,。[7],。,:(、、、)----,,CODCr、、98.8%、99.6%61.4%,GB8978—1996《》。、、,,。,70.1%。,,,。:;;;;:X787.031:A:%1009-2455(2012)03-0031-04TreatmentofhighsalinityorganicwastewaterfromchemicalpharmaceuticalindustryZHANGCheng-hong1,2,PENGShu-chuan1,CHENJin-si2(1.SchoolofResourcesandEnvironmentalEngineering,HefeiUniversityofTechnology,Hefei230009,China;2.HefeiVasunriseEngineeringTechnologyCo.,Ltd.,Hefei230009,China)Abstract:Thecombinedprocessofpretreatment(evaporationdesalination,neutralization,coagulation,sedi-mentation)-anoxic-anaerobic-aerobic-secondarycoagulationprecipitationcouldeffectivelyremovetheorganicpollutantsinwastewaterfromchemicalpharmaceuticalindustry,theremovalratesofCODCr,tolueneandammonianitrogenwere98.8%,99.6%and61.4%respectively,theeffluentwaterqualitymetthespecificationforgrade1inGB8978—1996IntegratedWastewaterDischargeStandard.Thesludgeinanoxic,anaerobicandaerobicstagesflewbackindependently,whichreducedthemixingofmicrobegroups,andwasbeneficialtothesurvivalofdominantbacteria.Anaerobicstagewasthemainprocedureoforganicpollutantsremoval,andtheremovalratereached70.1%.Asthesaidkindofwastewatercontainedahighconcentrationofsalt,thesedimentationperformanceofthesludgewasnotgood,therefore,settingcoagulation-sedimentationtankbehindthesecondarysedimentationtankisanimportantmeasuretoensuretheeffluentwaterqualitymeetthedischargestandardsteadily.Keywords:pharmaceuticalwastewater;highsalinitywastewater;anaerobic;aerobic;coagulationsedimentation!!!!!!!!!!!!!!!!!!INDUSTRIALWATER&WASTEWATERVol.43No.3Jun.,2012·31·INDUSTRIALWATER&WASTEWATERVol.43No.3Jun.,20121Tab.1WastewaterqualityanddischargestandardpHρ(CODCr)/(mg·L-1)ρ(BOD5)/(mg·L-1)ρ()/(mg·L-1)3~580002180206~9≤100≤20≤0.1ρ(NH3-N)/(mg·L-1)ρ(SS)/(mg·L-1)/(mg·L-1)353507200≤15≤701Fig.1Processflowofwastewatertreatment、:①,;;。②,。③、、,、、。④,。⑤,。1.3,,;。,10d,,pH,,30d,,,、。22.12.1.1,,(4.0%)。316,0.55t/t[]。15,,,。NaCl,Cl-;,,。2:,。,。(TDS),TDS3.5%[8]。M.Ingram[9],NaCl10g/L,。AnLi[10],NaCl20g/L,BOD。,,,m(BOD5)/m(CODCr)、()、()。(AFT)(LST),、,、、、。11.1、、、、,、。、、、、、。250t/d,1。1.2CODCr、m(BOD5)/m(CODCr)、、(),----,1。·32·2Fig.2Volumeloadingofanaerobicreactor60120180240300360/d/(kg[CODCr]·m-3)864202.1.2,,。,pH5~6,(NaOH)pH6~9,,15min。2.1.3,pH6~9,,。30min,2.5h。10W/m3[],PACPAM。,。80%~95%,。,PAS,,85%~97%。PAS,,。PAC,Cl-,,Cl-,Na+。2.1.4(72h),,、。,。pH,pH,HRT,,。,,,,。2.2/2.2.1,HRT,18h。、、,、、。,,HRT18h,,CO2H2O。,HRT8h,,m(BOD5)/m(CODCr),。,,。,,DO,DO0.2mg/L。,HRT12h,m(BOD5)/m(CODCr)。2.2.2(UASB),,HRT24h,Φ×H=4200mm×12800mm,,。、、、、,0.5~2.0。。pH6.2~7.8,35~38℃,。2。180d,3.44kg[CODCr]/m3,240d7.78kg[CODCr]/m3,。:①,Na+,;,,Na+。②,。③,,pH,。2.3。HRT18h,,。HRT3h,。180d,,,,:A2/O·33·INDUSTRIALWATER&WASTEWATERVol.43No.3Jun.,20123Fig.3Removaloforganicpollutantsinaerobicpool60120180240300360/dρ(CODCr)/(mg·L-1)400030002000100002Tab.2PollutantsremovaleffectpHρ(CODCr)/(mg·L-1)ρ(BOD5)/(mg·L-1)ρ()/(mg·L-1)ρ(NH3-N)/(mg·L-1)ρ(SS)/(mg·L-1)3.0~5.08000.02180.020.035.0350.06.26900.02030.014.530.26.01290.01190.03.519.87.2108.018.80.0913.87.294.018.50.0813.558.0/%98.899.299.661.483.42,70.1%;,13.75%;14.95%。,,、,:60%90%。2.5(1)0.7%,,、MVR。(2),、,、,。(3),,,。(4),。(5),,;,,;,;PE,ABS;,;、,。3(1)(、、)-/--,,CODCr、、98.8%、99.6%61.4%,GB8978—1996《》。(2)、、,,。,2000mg/L。CODCr,2500~4000mg/L,,,。(20min,2.5h),。,、、VFACODCr。,:CODCr95~120mg/L。3(CODCr)。3,CODCr100mg/L。,,,CODCr95mg/L。2.415,2。(57)·34·,70.1%。(3)0.72%,,。(4)9.8/m3,186/m3。(5),,。,。:[1],,,.[J].,2008,28(9):2-4.[2],,,.[J].,2008,21(6):72-74.[3],.[J].,2009,32(9):209-211.[4],,,.MDAT-IAT[J].,2006,19(3):71-73.[5],,,.[J].,2009,35(2):50-52.[6],,.[J].,2002,33(4):43-45.[7],,,.[J].,2005,21(1):82-84.[8]Binder.UseofSBR'stotreatpesticidewastewater[A].Presentedatthenotredame/milehazardouswasteconference[C].SouthBend:UniversityofNotreDame,1992.[9]IngramM.Theinfluenceofsodiumchlorideandtemperatureontheendogenousrespirationofbacilluscereus[J].JGenPhysiol,1940,23(6):773-779.[10]AnLi,GuGuowei.Thetreatmentofsalinewastewaterusingatwo-stagecontactoxidationmethod[J].WatSciTech,1993,28(7):31-37.:(1988-),,,,,()owen19880207@163.com。:2012-02-27()(34)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!3(1)、-Fe/Ce,。,-。(2),Fe/Ce。n(Fe2+)∶n(Ce3+)∶n()=3∶1∶4,Fe/Ce0.10mol/L,pH8.0,450℃3h,,,30min98.9%。(3)XRDTEM,FeCeγ-Fe2O3CeO2,Ce,,。:[1]WuDY,LongMC,ChenC,etal.RemovingdyeRhodamineBfromaqueousmediumviawetperoxidationwithV-MCM-41andH2O2[J].WaterScienceandTechnology,2009,59(3):565-571.[2]LiuY,SunDZ.EffectofCeO2dopingoncatalyticactivityofFe2O3/γ-Al2O3catalystforcatalyticwetperoxideoxidationofazodyes[J].JournalofHazardousMaterials,2007,143(1-2):448-454.[3].[D].:,2010.[4]ZhengH,ZhangH,SunX,etal.Thecatalyticoxidationofmalachitegreenbythemicrowave-Fentonprocesses[J].WaterScienceandTechnology,2010,62(6):1304-1311.[5],,.-YMnO3[J].,2011,31(3):115-116.[6],.Ca3CO2O6[J].,2006,28(12):24-26.:(1971-),,,,,,()022-23085117()yzchi@tjuci.edu.cn;:(1957-),,,,,,()022-23085117()xueningfei888@163.com。:2012-03-30(),,,:Fe/Ce·57·

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