化学絮凝磷酸铵镁结晶MBR组合工艺处理养猪沼液研究郭会真

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COD0.8~2g/LNH4+-N、TP200~800、20~90mg/L[1]。、、。、SBR、[2-3]。MBR、、、。[4]MAP[5]。NH4+-N、A/O-MBRA/O-MBR、-A/O-MBR-MAP-A/O-MBR3。11.1UASB1ABC。1.2A/O-MBR10mm3NH4+-NTNTPABC1272~3353444~909460~7937.0~8.47.4~8.47.5~8.5656~1489456~1339114~238631~1504623~1485161~37413.8~70.54.6~40.08.5~52.613Tab.1TheinfluentcontentofthreetestsCOD/(mg·L-1)ρ/(mg·L-1)pH111211.2000922.710021MAPA/O-MBRA/O-MBR、-A/O-MBR-MAP-A/O-MBR。MAPMgSO4·7H2ONa2HPO4·12H2OMg2+、NH4+、PO43-1.1:1.0:0.85MBRHRT32h-MAP-A/O-MBRCODNH4+-N78.4%99.6%MAPCOD/ρ(TN)0.974.10TN12.0%36.8%COD/ρ(TN)TN。MAPMBRX713A1000-3770(2017)01-0086-0052016-03-312013BAD21B031992-15900925785ghz101010@163.comsiqingxia@tongji.edu.cn43120171Vol.43No.1Jan.,2017DOI:10.16796/j.cnki.1000-3770.2017.01.018861。150mm4.5L2.7L。140r/min。PLC8min/2min。PVDF。40nm0.02m250kPa。1.3PACPAMPACPAM。PAC1.2~2.0g/LPAM80~200mg/L。MAPAirliftInternalCirculationStru-viteReactorAICSR50L42L9L。12cm、80cm24cm80cm。。MAPAICSR。MgSO4·7H2ONa2HPO4·12H2O100g/LCO2pHNH4+-N。MAP2。A/O-MBR1、-A/O-MBR2、MAP--A/O-MBR3324、24、28d3。[6]CODNH4+-NTN。22.1COD3MBRCOD23。21COD596.8~887.5mg/LCOD127.9~452.3mg/LCOD1235050323003003007.0~8.07.0~8.07.0~8.0<0.5<0.5<0.52.0~4.02.0~4.02.0~4.0+MAP33MBRTab.3OperationparametersofMBRreactorsinthreeconditionsHRT/hpHρ(DO)/(mg·L-1)8.0~9.01.1:1.0:0.856.00.9pHn(Mg2+):n(NH4+):n(PO43-)HRT/h/(m3·h-1)2MAPTab.2OperationparametersofMAP1MAP-A/O-MBRFig.1SchematicdiagramofMAP-A/O-MBRreactor212CODFig.2TheremovalratesofCODinconditions1and205101520250.00.20.40.60.81.0020406080100 COD/(gL)t/d/%33CODFig.3TheremovalratesofCODinconditions30510152025300.00.20.40.60.81.0020406080100COD/(gL)t/d/%--MBR87242.1mg/LA/O-MBRCOD66.3%。CODGB5084-2005≤150mg/L、≤200mg/L、≤100mg/L[7]。A/O-MBR、、[8]NH4+-NCOD/ρ(TN)1COD[9]。A/O-MBRGB5084-2005。[10]。2MBR。22COD304.3~887.5mg/LCOD128.2~199.5mg/LCOD157.6mg/LA/O-MBRCOD78.0%。[11]。A/O-MBRCOD。COD。-A/O-MBRCODGB5084-2005。200~500mg/L[12-13]。3MAPMAPMAPAICSR。3MAPCOD626~989mg/L460~793mg/LMAPA/O-MBRCOD102~181.9mg/LCOD138mg/LCOD78.4%-MAP-A/O-MBRCODGB5084-2005。HRT32hCOD。MAP0.974.10CODMAPNH4+-N。2.2NH4+-NNH4+-NNH4+-N[14]。NH4+-N456.6~1021mg/L。4A/O-MBR-A/O-MBRNH4+-N9.5mg/L10.7mg/L98.6%2NH4+-N412NH4+-NFig.4TheremovalratesofNH4+-Ninconditions1and2MBRρ(NH4+-N)ρ(NH4+-N)/(g·L-1)05101520250.00.20.40.60.81.01.2020406080100t/d/%53NH4+-NFig.5TheremovalratesofNH4+-Ninconditions3ρ(NH4+-N)ρ(NH4+-N)/(g·L-1)0510152025300.00.20.40.60.81.0020406080100 t/d /%43188MBR3NO3--NNO3--N[15]。NH4+-NMBRNH4+-N[16]。NH4+-N。MAPNH4+-NNH4+-N。53MAPNH4+-N707.5~899.3mg/L114.3~138.1mg/LMAPNH4+-N126.4mg/L84.5%MBRNH4+-N3.6mg/L。AICSRMAPNH4+-N。MAPNH4+-N。3NH4+-N98%NH4+-NGB5084-2005-MAP-A/O-MBRHRT32h。2.3TN63TN。6A/O-MBRTN623.7~858.6mg/L749.6mg/LCOD/ρ(TN)0.70~1.340.98300%-A/O-MBRTN655.1~837.1mg/L747.9mg/LCOD/ρ(TN)0.78~1.200.97300%。2TNNO3--NTN12.0%14.6%。COD/ρ(TN)[17]。TN1gNO3--N4gBOD5COD/ρ(TN)42MBR2TN。A/O-MBRNH4+-N98%~99%NO3--NNO3--N10%~20%NO3--N500~1000mg/L[18]。。81.2%———Fe2+[19]。[20]。。、3NH4+-N。3-A/O-MBRMAPNH4+-NTNA/O-MBRCOD/ρ(TN)。63MBRTN141.5~174.9mg/L、COD460~793mg/LCOD/ρ(TN)2.63~4.954.10。MBRTN81.5~124.7mg/L97.2mg/L36.8%。12COD/ρ(TN)0.974.10TN12.0%36.8%COD/ρ(TN)TN。63TNFig.6TheremovalratesofTNinthreeconditionsρ(TN)/(g·L-1)ρ(TN)05101520250.00.20.40.60.81.01.2010203040506070t/d/%--MBR89StudyonChemicalFlocculationMAP/MBRCombinedProcessesforTreatmentofPiggeryBiogasSlurryGUOHuizhen1,TAOZhiwei1,FENGLiang1,WANGSen2,XIASiqing1(1.StateKeyLaboratoryofPollutionControlandResourceReuse,CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.ShanxiUniversityofScience&Technology,Xi'an710021,China)Abstract:Piggerybiogasslurryisdifficulttoreachthedischargestandardaftertreating.Inordertoinvestigatetheinfluenceofchemicalflocculationpretreatmentandthemagnesiumammoniumphosphate(MAP)ontheA/O-MBRprocesstreatmentefficiency,threeprocessesincludingA/O-MBR,chemicalflocculation-A/O-MBRandchemicalflocculation-MAP-A/O-MBRwereusedfortreatingpiggerybiogasslurry.Theresultsshowedthat:undertheconditionsthatthemolarratiosofMg2+,NH4+,PO43-was1.1:1.0:0.85intheAirliftInternalCirculationStru-viteReactor(AICSR)byaddingMgSO4·7H2OandNa2HPO4·12H2OandtheHRTwas32hintheA/O-MBR,theremovalefficiencyofCODandNH4+-Nwere78.4%and99.6%inthechemicalflocculation-MAP-A/O-MBRprocess.AfterMAPcrystallizing,theCOD/ρ(TN)ofinfluentincreasedfrom0.97to4.10,andtheTNremovalratealsoincreasedfrom12.0%to36.8%correspondingly,indicatingthattheincreaseofCOD/ρ(TN)couldimproveTNremovalefficiency.Keywords:chemicalflocculation;MAP;MBR;piggerybiogasslurry3MAP--A/O-MBRMBRCODNH4+-N、TN138.0mg/L3.6、97.2mg/LCOD、NH4+-NTN78.4%99.6%、36.8%CODNH4+-NGB5084-2005、NH4+-N、TN。A/O-MBR-A/O-MBR-MAP-A/O-MBR。A/O-MBR-A/O-MBRHRT50h-MAP-A/O-MBRHRT32hMAPNH4+-N-MAP-A/O-MBR。[1],,,.[J]..2013,31(6):22-24.[2],,,.[J].,2010,26(7):96-98.[3],,,.SBR[J].,2010,24(2):19-21.[4],,.[M].:,2007.[5],,,.pH[J].,2011,32(9):2598-2603.[6]《》.[M].4.:,2002:243-281.[7]:GB5084-200

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