ABS树脂废水有机物反硝化潜势及降解特性

2711201411ＲesearchofEnvironmentalSciencesVol．27No．11Nov．2014．ABSJ．201427111379-1386．WANGＲanWANGTongCHENGJiayunetal．DenitrificationpotentialsanddegradationcharacteristicsoforganicsinABSresinwastewaterJ．ＲesearchofEnvironmentalScience[e-mail]．*[e-mail]123142323523*11．7100542．1000123．1000124．1320225．056038ABS．ABS．ρSCODSCOD755.4～1043.3mgLρTN86.1～111.1mgL95.4～144.6mgLNO3－-N3.4～4.6mgg·hNO3－-N33.2～49.7mgL22.2～3.20.4～0.9mgg·h62.2～94.9mgL．SCOD48.9%～62.8%ON81.5%～95.7%．NH4+-N．．ABSX703.11001－6929201411－1379－08ADOI10.13198j．issn．1001-6929．2014．11．23DenitrificationPotentialsandDegradationCharacteristicsofOrganicsinABSＲesinWastewaterWANGＲan123WANGTong1CHENGJia-yun4SONGYu-dong23LYUQian-qian235ZHOUYue-xi23*YANGLi-wei11．CollegeofEnvironmentalScienceandEngineeringChang'anUniversityXi'an710054China2．ＲesearchCenterofWaterPollutionControlTechnologyChineseＲesearchAcademyofEnvironmentalSciencesBeijing100012China3．StateKeyLaboratoryofEnvironmentalCriteriaandＲiskAssessmentChineseＲesearchAcademyofEnvironmentalSciencesBeijing100012China4．JilinPetrochemicalCompanyLtd．PetroChinaJilin132022China5．CollegeofUrbanConstructionHebeiUniversityofEngineeringHandan056038ChinaAbstractInordertooptimizethebiologicalnitrogenremovalprocessofABSresinwastewaterthedenitrificationpotentialsofthewastewaterweremeasuredandthedegradationcharacteristicsoforganicsinthewastewaterduringthedenitrificationprocesswereinvestigated．TheresultsindicatedthatABSresinwastewatercontainedsufficientcarbonsourceforitsdenitrificationincludingbothreadilybiodegradableandslowlybiodegradableorganicswithdifferentdenitrificationrates．ForABSresinwastewaterwithsolublechemicaloxygendemandSCODof755.4-1043.3mgLandtotalnitrogenTNof86.1-111.1mgLthetotaldenitrificationpotentialswerefrom95.4-144.6mgLNO3－-N．Thedenitrificationpotentialsofthereadilybiodegradableorganicsinthewastewaterwerefrom33.2-49.7mgLwithdenitrificationratesof3.4-4.6mgg·hNO3－-N．Thetotaldenitrificationpotentialsofthetwocategoriesofslowlybiodegradableorganicsrangedfrom62.2-94.9mgLwithdenitrificationratesof2.2-3.2and0.4-0.9mgg·hrespectively．DuringthedenitrificationprocesstheremovalefficienciesofSCODandorganicnitrogenONwerefrom2748.9%-62.8%and81.5%-95.7%respectively．Organicscontainingnitrogenincludingorganicnitrilesweretheimportantcarbonsourcesfordenitrificationandweredegradedsignificantlywithproductionofammonianitrogen．Accordingtothree-dimensionalexcitationandemissionmatrixfluorescencespectrathearomaticcycleswerenotdestroyedsignificantlyunderdenitrificantionconditionswhiletheyweredestroyedquicklyunderaerobicconditions．KeywordsABSresinwastewaterdenitrificationpotentialsdenitrificationstageorganicsdegradationABS--1．ABS2-3．ρCODCr800～1300mgLρTN90～110mgLρTKNTKN80～100mgL4-6．ABS．-NH4+-NTN．TNABS．7-8．ABS．．ABSABS．11.1ABS4d4ABSρSCODSCOD755.4～1043.3mgLρTN86.1～111.1mgLρNH4+-N11.2～15.1mgLρNO3－-N1.7～2.2mgLρNO2－-N0.08～0.11mgLρPO43－-P10.1～19.8mgL．ρCH3COONa158.8mgLρ〔NH42SO4〕123.7mgLρKH2PO474.2mgLρNaHCO3191.7mgLρMgSO4·7H2O83.3mgLρCaCl250.0mgLρ〔NH42FeSO42〕5.0mgL．．1.2115cm30cm5L．1—2—3—4—pH5—DO6—7—N28—9—．1Fig.1TheschematicdiagramofexperimentalsetupABS、SBＲ．430min．CODCr0.06ggABS5LρMLVSSMLVSS2630mgL．KNO3ρNO3－-N40mgL．N2DO．．pH7.2～7.4ρDO0.1mgL25±0.3℃．0、5、10、15、20、25、30、35、40、45、50、60、70、80、90、100、120、140、160、180、200、220、240、260、280、300、320、340、360min0.45μmρTN、ρNO2－-N、ρNO3－-N、ρNH4+-N、ρONON、ρSCOD、ρPO43－-PρMLVSS．083111ABS．0、5、10、15、20、25、30、35、40、45、50、60、70、80、90、100、120、140、160、180、200、220、240min0.45μmρNO2－-N、ρNO3－-N、ρNH4+-NρMLVSS．1.31.3.1ρTNTOC-VCPHTOCTNM-1ρNO2－-NρNO3－-NICS-1000ρSCODCTL-12ρNH4+-N〔UV-2100〕ρPO43－-PρDOProPluspHFE20KpH-ρMLVSS．ρONρON=ρTN－ρNO2－-N－ρNO3－-N－ρNH4+-N1.3.2GC-MSABS2-、2-GC-MS．9．7683B．10μL1μLAgilentHP-519091J-43330m×250μm×0.25μm1mLmin260℃5∶1EM2094.1V230℃MS150℃310℃30～400amu．40℃3min5℃min300℃3min58min．1.3.3F-7000．0.45μm200λEx200～500nmλEm200～500nm5nm0.5s12000nmmin700V．1.4NO2－-N1gN2NO3－-N0.6gN2ρ'NO3－-NρNO3－-NρNO2－-NNO3－-NN2NO3－-NNO2－-N10-111．ρ'NO3－-N=ρNO3－-N+0.6·ρNO2－-N12YH12．1－YH=2.86·rD1·Δt1cAc2rD11ρ'NO3－-NmgL·minΔt11mincAcρCODCrmgL．3kDikDi=rDiρMLVSS3rDiiρ'NO3－-NmgL·min．4～7ABS12．DPSs=rD1－rDend·Δt1fww4DPXsⅠ=rD2－rDend·Δt2fww5DPXsⅡ=rD3－rDend·Δt3fww6DPt=DPSs+DPXsⅠ+DPXsⅡ7DPSsSsNO3－-NmgLDPXsXsⅠ、ⅡⅠ、ⅡNO3－-NmgLDPtmgLrD2、rD3、rDend2、3ρ'NO3－-NmgL·minΔt2、Δt32、3minfww0.2．22.12．2ρ'NO3－-N2．13-14．60minρ'NO3－-N31.9mgL23.3mgLy=－0.1437x+32.2194Ｒ2=0.996760183127minρ'NO3－-N〔y=－0.0139x+23.9054Ｒ2=9872〕60min．0.67NO3－-N6.4mgg·h．2Fig.2Changesofnitrogenconcentrationduringdenitrificationexperimentofsyntheticwastewater150.65～0.72Sage160.59±0.05Insel17、0.67．．KNO3ρNO3－-NρNO2－-N3．34h0.5mgg·h．3Fig.3ChangesofnitrogenconcentrationduringtheendogenousstageHenze187～20mgg·h0.2～0.5mgg·h．Kujawa120.2～0.6mgg·h．ABSABS．2.2ABSABS4．4ABSρ'NO3－-N41．1ρ'NO3－-N2、360～260min4260～360min．4ABSFig.4ChangesofnitrogenconcentrationduringdenitrificationexperimentofABSresinwastewaterKujawa12ρ'NO3－-N31、23．Kujawa12kDSs、kDXsⅠ、kDXsⅡⅠ、Ⅱ1.4、2.2、0.4mgg·hkDSs＜kDXsⅠ12ABS28