122Vol.12No.220182ChineseJournalofEnvironmentalEngineeringFeb.20182015ZX07203-0112017-08-232017-10-141993—。E-mailduuyan@yeah.net*E-mailzhoubeihai@sina.comUASB-SBR1212*12341.1000832.1000833.2142664.100020-SBR、UASB-SBR3SBR。UASBCOD8kg·m3·d-1、pH7.0、35℃、HRT25hCOD80%~85%SBR15min、480min、60min、15min、810minCOD、NH+4-N、TN91.8%、98.7%71.6%COD≤180mg·L-1、NH+4-N<15mg·L-1、TN<50mg·L-1《》GB18596-2001。NO-2-N50%NO-2-N。SBRX703.1A1673-9108201802-0497-08DOI10.12030/j.cjee.201708147Treatmentoflarge-scalelivestockwastewaterbyUASB-SBRprocessDUYan12ZHOUBeihai12*YUANRongfang12BAOXiangming3LIDongwei41.SchoolofEnergyandEnvironmentalEngineeringUniversityofScienceandTechnologyBeijingBeijing100083China2.BeijingKeyLaboratoryofResource-OrientedTreatmentofIndustrialPollutantsUniversityofScienceandTechnologyBeijingBeijing100083China3.JiangsuTaiyuanEnvironmentalScienceandTechnologyCo.Ltd.Yixing214266China4.BeijingBOSCHEnvironmentalScienceandTechnologyCo.Ltd.Beijing100020ChinaAbstractInthispaperatreatmentprocessofUASB-SBRwasbuilttotreatthelargescalelivestockwastewaterwhichaimedtosolvetheproblemofconventionalanaerobic-aerobictreatmentprocessandSBRtreat-mentprocessincludinglowdenificationefficiencyhighoperatingcostsandsoon.BasedonthetreatmentprocessthreekindsofSBRexperimentwerestudied.ItcanbeseenfromtheexperimentthatwhenthevolumeloadingcalculatedbyCODwas8kg·m3·d-1withthepHvalueof7thetemperatureof35℃andHRTof25htheremovalefficiencyofCODwasfrom80%to85%duringtheanaerobicprocessUASB.FortheoptimizedSBRtreatmentconditionsinfluent15minreaction480minprecipitation60mineffluent15minidle810mintheremovalefficiencyofCODNH+4-NandTNinlivestockwastewaterinSBRwere91.8%98.7%and71.6%respectively.TheeffluentCODwaslessthan180mg·L-1NH+4-N<15mg·L-1TN<50mg·L-1meetingtheDischargeStandardofPollutantsforLivestockandPoultryBreedingGB18596-2001.Thenitriteaccumulationoccurredandshortcutnitrificationdenitrificationwasthemainwayofnitrogenremoval.KeywordslivestockwastewaterSBRnitrogenremovalshortcutnitrificationdenitrification1。32。12COD、SS、NH+4-N、TP、C/N3-7。CODNH+4-NCODC/N。8。-、、NP。UASB92UASB、、、HRT。。SBRSBR、、/、、10。SBR。“UASB-SBR”。11.11UASB500mm150mm5.0L50mm20mmSBR500mm150mmLZB-3WB。1Fig.1Sketchmapofexperimentflow1.2UASB1SBRUASB2。1UASBTable1InfluentwaterqualityofUASBpH/℃COD/mg·L-1NH+4-N/mg·L-1TP/mg·L-17.0~7.323~25790~20135102~30029~607.2248104244388942UASB-SBR2SBRTable2InfluentwaterqualityofSBRmg·L-1CODNH+4-NTNNO-3-NNO-2-N685~1600122~250165~2602~80.02~0.2144319523060.061.3UASBMLSS4000~4500mg·L-1SBRMLSS2000~2500mg·L-1。1.4UASB30~35℃HRT25hSBRDO2~3mg·L-10.4SRT16d18~25℃3310d。3SBRTable3ModesofSBRoperation10645—07000800—11001100—12001200—12151215—131511315—13301430—17301730—18301830—18451845—064520645—07000800—16001600—17001700—17151715—064530645—07000800—18001800—19001900—19151915—06451.5CODNH+4-NNO-3-NN-1--NO-2-NTNTP。HACHDR5000。NO-2-N111。r=C2C1+C2×100%1r%C1NO-3-Nmg·L-1C2NO-2-Nmg·L-1。22.1UASBCOD、NH+4-NTP2aCOD1867mg·L-11545mg·L-117.25%。UASB2054.1%COD11095mg·L-1UASB86.2%1530mg·L-1。2616605mg·L-1COD2100mg·L-1COD。12。28COD8925mg·L-11551mg·L-182.5%。2bNH+4-N。NH+4-N99412UASBNH+4-N。UASBHRT13。NH+4-NNH+4-N14。UASBTPTPPAOspoly-P15。2UASBCOD、NH+4-N、TPFig.2RemovalofCODNH+4-NTPinlivestockwastewaterinthestart-upphaseofUASB2.2UASBCOD2.2.1COD30℃、pH6.8~7.5、HRT25h。COD1.5、5、8、10、1520kg·m3·d-110dCOD3。3CODFig.3EffectofvolumetricloadingonremovalefficiencyofCOD3COD。1.5、5、8、10、1520kg·m3·d-1COD2.6%、73.6%、82.3%、85.6%、77.9%32.1%COD1490、1265、1432、1467、332113345mg·L-1。COD。。15kg·m3·d-120kg·m3·d-1“”16。10kg·m3·d-1。2.2.2CODCOD7000~10000mg·L-1、HRT25hpH6.8~7.515、20、25、30、3540℃10dCOD4。4UASBCOD15、20、25、30、3540℃UASB0052UASB-SBR4CODFig.4EffectoftemperatureonCODremovalefficiencyCOD58.2%、71.0%、82.5%、83.1%、83.8%73.7%COD3250、2123、1452、1440、14852298mg·L-1。20℃25℃COD71.0%82.5%。17pHCOD。35℃COD。。25~35℃COD。18。2.2.3HRTCODHRT。COD7000~10000mg·L-1、30±1℃pH6.8~7.5HRT5、10、15、20、25、3035h10dHRTCOD5。5HRTCODFig.5EffectofHRTonCODremovalefficiency5HRTCODHRTCOD。HRT5、10、15、20、25、3035hUASBCOD17.7%、40.3%、64.9%、80.7%、90.0%、87.4%88.6%COD7987、4311、3057、1625、1459、15061549mg·L-1。HRT5h25hCOD72.25%COD6793.86mg·L-1827.45mg·L-1。HRTCOD。HRT。HRT19。HRT30h35hHRT。2.3SBR2.3.1SBRCODSBR316h228h310h3。6COD1500mg·L-1COD60%1、23COD105126CODSBRFig.6ChangesofCODoflivestockwastewaterindifferentmodesofSBR68%、87%94%COD486、15660mg·L-13>2>1。123COD200mg·L-1COD85%COD《》GB18596-2001。23COD。3COD。2.3.2SBR7ab3NH+4-NTN1、23NH+4-N47%、96%96%NH+4-N105、59mg·L-13TN51%、70%76%TN109、5158mg·L-123NH+4-NTN90%70%NH+4-NTN1NH+4-NTN20mg·L-160mg·L-1。NH+4-NNO-x-NNH+4-N。27c3TN3NO-2-NNO-2-NNO-2-N20-21。7TN、NH+4-N、NO-3-NNO-2-NSBRFig.7ChangesofTNNH+4-NNO-3-NandNO-2-NofthelivestockwastewaterindifferentmodesofSBR3/NO-2-N/。NO-2-NNO-2-N22。NO-2-N50%23。7b833NO-2-N2NO-2-N13251.56%2。1NO-2-N124。2052UASB-SBR8NO-2-NSBRFig.8AccumulationrateofNO-2-NindifferentmodesofSBR3NO-3-N3NOBNOB25。83NO-2-N。NO-2-NNOBNO-3-NNO-2-N26。31UASB、pH、HRT。8kg·m3·d-1、pH7.0、35℃、HRT25hCOD83%。2UASBSBR2COD、NH+4-NTN90.87%、98.65%71.59%COD≤180mg·L-1、TN<50mg·L-1、NH+4-N<15mg·L-1《》GB18596-2001。33SBR1115min、180min、60min、15min、60min215min、180min、60min、15min、720min215min、480m