鼓泡塔生物反应器处理化肥工业含氨废水的实验研究朱智勇

172　　　　　　　　　　　　　　　　　　　　　　　　　　　　Vol17,No220016　　　　　　　　　ChemicalReactionEngineeringandTechnology　　　　　　　　June,　2001:2000-10-20;:2000-12-16:(1971-),,;(1966-),,,,。:(No.29706006)(No.X5998021):1001-7631(2001)02-010-01,　1,　1,　2,　3(1.,　300072;2.,　300072;3.,　300270):　,CODNH3-N,。,,(NH3-N450mg/L,COD1000mg/L),:30℃,pH8,0.15m3/h,2.5g/L,8h,,NH3-N5mg/L,COD50mg/L,。:;　;　;　:TQ033　:A1　　。,。,,,[1]。,,、。,,、、。,;NH3-N,COD;,,。,。,,、、,、。,,。2　2.1　,,:1　Table1　CompositionofthewastewaterCOD/mg·L-1NH3-N/mg·L-1pH9924476.81　Fig1　Theflowsheetofthetestprocess1-;4-;7-　2-;5-;　　3-;6-;　2.2　1000mm、100mm,1。,(HRT)4～9h,(MLSS)0.5～3g/L;15～40℃;pH6～10;,(DO)1～6mg/L。COD,、pH、、、HRT,。2.3　COD[2];NH3-N[2];pH25;DORSS-5100。2.4　2.4.1　,、、,、,,、。2.4.2　,,,,,pH,,,30,,,,,,,10%,。。,。3　3.1　NH3-NCODNH3-N428mg/L,COD992mg/L,pH7,HRT8h,,NH3-NCOD,NH3-NCOD。2。160　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　20012,COD,NH3-N。20℃,,。,,35℃,NH3-N。Mulder[3,4]。35℃,,。,25℃～35℃。2　NH3-NCODFig2　EffectofthetemperatureonremovalofNH3-NandCOD3　pHNH3-NCODFig3　EffectofthepHonremovalofNH3-NandCOD3.2　pHNH3-NCOD35℃,,pH。3。pH[5～7]。3,pHNH3-N,pH8,,pH69。pH,pH,,NH3-N。pH7～8,NH3-NCOD90%。4　DOFig4　TherelationshipofFluxvsDO5　NH3-NCODFig5　EffectoftheFluxonremovalofNH3-NandCOD3.3　NH3-NCODNH3-N423mg/L,COD973mg/L,pH8,,,NH3-NCOD,4。1612.　　　,NH3-N[1]。,NH3-NCOD。,DO,,,5。5,0.1m3/h,NH3-N,,NH3-NCOD。0.15m3/h(DO4mg/L),NH3-NCOD90%。3.4　()NH3-NCODNH3-N434mg/L,COD911mg/L,0.2m3/h,,(MLSS),NH3-NCOD,6。6　NH3-NCODFig6　EffectofthesolidphaseholduponremovalofNH3-NandCOD7　HRTNH3-NCODFig7　EffectoftheHRTonremovalofNH3-NandCOD6,MLSSNH3-NCOD。MLSS2g/L,NH3-N。。MLSS,,。MLSS,,。COD,,,MLSS(MLSS=0.5g/L),,HRT8h,COD。,,CODNH3-N。3.5　HRTNH3-NCODNH3-N436mg/L,COD959.2mg/L,MLSS2g/L,,HRTNH3-NCOD。7。HRTNH3-N,,。,,。7,HRT7～8h,6h。CODHRT,COD。3.6　,,:30℃,pH8,162　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　20018　NH3-NCODFig8　TheresultforremovalofNH3-NandCODontheoptimalcondition0.15m3/h,MLSS2.0g/L,HRT8h。8,NH3-NCOD94%,,COD50mg/L,NH3-N5mg/L,(COD≤150mg/L,NH3-N≤60mg/L),。:1);2),,,。4　　1　,,。,,NH3-NCOD。NH3-N。2　,、pH、、MLSSHRTNH3-N。:35℃,pH8,0.15m3/h,2.5～3mg/L,HRT8h,。NH3-N5mg/L,95%。,COD,50mg/L,。COD　DOHRT——,mg/L　——,mg/L——,h　　　　NH3-NMLSSt——,mg/L——,g/L——,d:[1]　,.[M].:,1998.[2]　.[M].:,1989.[3]　MulderJW,KempenRV.N-removalbySHARON[C].IAWQconference,1997,30～31.[4]　CooperDF,WilliamsSC.High-ratenitrificationinabiologicalfluidizedbed[J].Wat.Sci.Tech.,1990,22:431～442.[5]　AbelingU,SeyfriedCF.Anaerobic-aerobictreatmentofhighstrengthammoniumwastewater-nitrogenremovalvianitrite[J].Wat.Sci.Tech.,1992,26(5-6):1007～1015.[6]　HelingaC,SchellenA,MulderJW,etal.Thesharonprocess:aninnovativemethodfornitrogenremovalfromammonium-richwastewater[J].Wat.Sci.Tech.,1997,37(9):135～142.[7]　LiuJ,LIW,WangX,etal.Removalofnitrogenfromcoalgasificationwastewaterbynitrosoficationanddenitrosofication[J].Wat.Sci.Tech.,1998,38(1):39～46.1632.　EXPERIMENTALSTUDYONNITROGEN-CONTAININGWASTEWATERTREATMENTOFCHEMICALFERTILEZERPLANTINBUBBLINGCOLUMNBIOREACTORZHUZhi-yong1,WENJian-ping1,MAOGuo-zhu1,ZHOUWei-yi2,ZHANGGuang-qing3(1.BiochemicalEngineeringDepartment,ChemicalEngineeringSchool,TianjinUniversity,Tianjin300072,China;2.AnalysisCenter,TianjinUniversity,Tianjin300072,China;3.InspectionInstituteofBoilerandPressureVessels,Dagangdistrict,Tianjin300270,China)Abstract:　ThechemicalfertilizerwastewaterwithhighconcentrationofCODandNH3-Niscomplex.Therefore,itisrelativelydifficulttobetreated.Inthispaper,experimentshavebeencarriedoutinabubblingcolumnbioreactorfornitrogen-containingwastewater(COD1000mg/L,NH3-N450mg/L)givenbychemicalfertilizerplantsusingthemethodofactivatedsludgeinwhichthepreponderantstrainswasused.Theexperimentalresultsshowedthatundertheconditiosoffollowing:whentempera-ture=30℃,pH=8,flux=0.15m3/h,solidphaseholdup=2g/L,HRT=8h,theconcentrationofCODintheeffluentislessthan50mg/LandNH3-Nislessthan5mg/L.Alltheindexesofthewaterqualityoftheeffluentarefarbelowthefirstclassstandardsofthenationalemissionforthechemicalfer-tilizerindustry.　　Keywords:bubblingcolumnbioreactor;　nitrogen-containingwastewater;　biologicalnitrifica-tion;　wastewatertreatment164　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　2001