好氧颗粒污泥SBR工艺处理避孕药生产废水李巍

SBR李　巍1,　纪树兰2(1.天津渤海职业技术学院环境工程系,天津300402;2.北京工业大学环境与能源工程学院,北京100124)　　　:　将以葡萄糖为碳源培养的好氧颗粒污泥接种于序批式间歇反应器(SBR),经过驯化后用于处理避孕药生产废水,取得了良好的效果。处理过程分为去除有机物和脱氮两个阶段,考察了不同运行参数对两个阶段处理效果的影响。结果表明,在第一阶段中,当曝气量≥0.3m3/h时,对COD的去除率在2h内即可达到90%以上,而且能够保证水体中有充足的溶解氧。在第二阶段,对氨氮的去除率随运行周期的延长而增大,当运行周期为22h时,对NH3-N的去除率达到98%以上,亚硝态氮积累率为92%以上。在最佳运行参数下,系统出水COD、NH3-N和NO-2-N分别为(150～200)、(2～9)、(90～110)mg/L,对COD、NH3-N和TN的去除率分别稳定在90%、96%和50%以上,而亚硝态氮的积累率为97%左右,短程硝化效果明显。　　:　好氧颗粒污泥;　SBR工艺;　避孕药生产废水:X703　　:C　　:1000-4602(2010)11-0145-04　　:(8042007)AerobicGranularSludgeSBRProcessforTreatmentofContraceptiveWastewaterLIWei1,　JIShu-lan2(1.DepartmentofEnvironmentalEngineering,TianjinBohaiVocationalandTechnicalCollege,Tianjin300402,China;2.CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100124,China)　　Abstract:　TheaerobicgranularsludgecultivatedbyglucosewasinoculatedinSBRandusedtotreatcontraceptivewastewaterafteracclimation,withanexcellenteffect.Thetreatmentprocesswasdi-videdintotwostages,oneforremovaloforganicmatterandotherfornitrogenremoval.Theinfluenceofdifferentoperationparametersonthetreatmentefficiencyinthetwostageswasinvestigated.Theresultsshowthatinthefirststage,whentheaerationrateisequaltoormorethan0.3m3/h,theremovalrateofCODcanreachmorethan90%within2h,andenoughdissolvedoxygen(DO)canbeensuredinwater.Inthesecondstage,theremovalrateofammonianitrogenisincreasedwiththeprolongationoftheopera-tioncycle.Whentheoperationcycleis22h,theremovalrateofammonianitrogenismorethan98%,andtheaccumulationrateofnitritenitrogenismorethan92%.Undertheoptimaloperationparameters,COD,ammonianitrogenandnitritenitrogenintheeffluentare150to200mg/L,2to9mg/Land90to110mg/Lrespectively,theremovalratesofCOD,ammonianitrogenandTNare90%,96%and50%respectively,whiletheaccumulationrateofnitritenitrogenis97%,showinganobviousshort-cutnitrifi-·145·第26卷　第11期2010年6月　　　　　　　　　　　　中国给水排水CHINAWATERWASTEWATER　　　　　　　　　　　　　Vol.26No.11Jun.2010cationeffect.　　Keywords:　aerobicgranularsludge;　SBRprocess;　contraceptivewastewater　　、、CODNH3-N、pH、,[1]。,、、,。Wang[2],CODNH3-N88.7%88.9%。,。Cassidy[3],97%,。SBR,,,。1　材料与方法1.1　SBR,10cm,50cm,3L。,,。1。1　Fig.1　SchematicdiagramofSBRpH,,,。pH(2L),30min,,;pH,,。1.2　,COD2000～4000mg/L,NH3-N200～300mg/L,pH8～10。,。:2.0g/L,NH4Cl0.40g/L,KH2PO40.10g/L,CaCl20.030g/L,0.10g/L,1mL/L,pH7.0。,、,1.5mm,9280mg/L,SVI11.23mL/g。1.3　MLSSSVI:;:;COD:COD;NH3-N:;NO-2-N:N-(1-)-;NO-3-N:。2　结果与讨论2.1　4。480min,2min、475min、1min、2min。1,25%,COD,90%;SVI,;。2,50%,SVI,224.32mL/g,,,;COD,88%。3,75%,SVI33.65mL/g,COD81.12%;。4,,,SVI17mL/g,COD90%,。·146·第26卷　第11期　　　　　　　　　　　　　　中国给水排水　　　　　　　　　　　　。2.2　2.2.1　,COD(DO),[4],。COD,,0.1、0.2、0.3、0.4m3/h,COD、NH3-N、TNDO。,0.10.2m3/h,DO;0.2m3/h,2hDO5.0mg/L,COD91.84%;0.1m3/h,0.5hDO2.4mg/L,1h,2hCOD77.89%。0.30.4m3/h,DO,1h5.0mg/L,;1hCOD90%。,,DO,,NH3-N,NO-2-NNO-3-N。,DO,COD,NH3-N,NH3-N,NO-2-N。,≥0.3m3/h,2hCOD90%,。0.3m3/h,2h。2.2.2　pH①　2。,,NH3-N,22h,98.14%,NH3-N3～5mg/L。10h,NO-2-N92%,22h95.92%,。2　Fig.2　Effectofoperationcycleonnitrogenremoval②　pHpH:,NH3-NNO-3-N,,pH,,pH7.4～8.3,NO-2-N,NO-2-NpH8.0,NO-3-NpH7.0[5]。,pH(FA),FA,,pH。,pH,,pH8.5～9.0,。2.3　SBR,60d。,,COD,COD,150～200mg/L,90%。3。,60d,NH3-N2～9mg/L,NH3-N96%～99%。,NO-2-N90～110mg/L,NO-3-N1～4mg/L,97%。TN50%～60%,:①;②。(下转第152页)·147·李　巍,等:好氧颗粒污泥SBR工艺处理避孕药生产废水第26卷　第11期[3]　SekiH.StochasticmodelingofcompostingprocesseswithbatchoperationbytheFokker-Planckequation[J].TransASAE,2000,43(1):169-179.[4]　HigginsCW,WalkerLP.Validationofanewmodelforaerobicorganicsolidsdecomposition:simulationswithsubstratespecifickinetics[J].ProcessBiochem,2001,36(8-9):875-884.[5]　Sole-MauriF,IllaJ,MagriA,etal.Anintegratedbio-chemicalandphysicalmodelforthecompostingprocess[J].BioresourTechnol,2007,98(17):3278-3293.[6]　PetricI,SelimbasicV.Developmentandvalidationofmathematicalmodelforaerobiccompostingprocess[J].ChemEngJ,2008,139(2):304-317.[7]　,,,.[J].,2002,22(5):736-741.[8]　VanLierJJC,VanGinkelJT,StraatsmaG,etal.Com-postingofmushroomsubstrateinafermentationtunnel:compostparatmetersandamathematicalmodel[J].NethJAgriSci,1994,42(4):271-292.[9]　DasK,KeenerHM.Numericalmodelforthedynamicsimulationofalargescalecompostingsystem[J].TransASAE,1997,40(4):1179-1189.[10]　EkinciK.Theoreticalandexperimentalstudiesontheeffectsofaerationstrategiesonthecompostingprocess[D].Columbus,USA:TheOhioStateUniversity,2001.[11]　,,,.[J].,2005,6(2):20-23.[12]　KaiserJ.Modellingcompostingasamicrobialecosys-tem:asimulationapproach[J].EcolModel,1996,91(1-3):25-37.[13]　LinYP,HuangGH,LuHW,etal.Modelingofsub-stratedegradationandoxygenconsumptioninwastecom-postingprocesses[J].WasteManage,2008,28(8):1375-1385.[14]　ZavalaMAL,FunamizuN,TakakuwaT.Modelingofaerobicbiodegradationoffecesusingsawdustasamatrix[J].WaterRes,2004,38(5):1327-1339.E-mail:[e-mail]:2009-12-20(上接第147页)3　Fig.3　Nitrogenremovalbyaerobicgranularsludge3　结论①　,COD,≥0.3m3/h,COD2h90%,。,NH3-N,22h,NH3-N98%,NO-2-N92%。②　,SBR60d,COD90%,NH3-NTN96%50%,97%。。:[1]　TislerT,Zagorc-KoncanJ.Toxicityevaluationofwastewaterfromthepharmaceuticalindustryaquaticor-ganisms[J].WaterSciTechnol,1999,39(10-1