多级AO工艺强化城市生活污水再生过程的污染物去除效果研究李彤彤

Vol．8No.4July2018JournalofEnvironmentalEngineeringTechnology8420187．AOJ．201884420-428．LITTLIYJXUJFetal．AnalysesonpollutantsremovalinmunicipalwastewaterreclamationplantwithmultistageAOprocessJ．JournalofEnvironmentalEngineeringTechnology201884420-428.2018-01-18“”2016ZX05040-0012015BAL04B011992—[e-mail]*1986—[e-mail]O12324222522*1．1000482．1000123．1000124．2004445．518063A2OAOMAO。、DOM。MAOCODCr、DOC、TN、TPNH+4-N95.14%、89．70%、94.53%、97.26%99.74%GB18918—2002《》AMAODOMDOM。。AOMAODOMX7031674-991X201804-0420-09doi10.3969j.issn.1674-991X.2018.04.055AnalysesonpollutantsremovalinmunicipalwastewaterreclamationplantwithmultistageAOprocessLITongtong1，2，LIYingjun3，XUJianfeng2，4，XIBeidou2，LNingqing2，LIUHui2，WANGJinsheng5，ZHANGLieyu2，WANGLei21．CollegeofＲesourceEnvironmentandTourism，CapitalNormalUniversity，Beijing100048，China2．GroundwaterandEnvironmentalSystemEngineeringInnovationBase，StateEnvironmentalProtectionKeyLaboratoryofSimulationandControlofGroundwaterPollution，ChineseＲesearchAcademyofEnvironmentalScience，Beijing100012，China3．BeijingVocationalCollegeofAgriculture，Beijing100012，China4．SchoolofEnvironmentalandChemicalEngineering，ShanghaiUniversity，Shanghai200444，China5．ShenzhenLongChengHigh-techEnvironmentalProtectionCo．，Ltd．，Shenzhen518063，ChinaAbstractAmunicipalwastewatertreatmentplant(MWWTP)inBeijingCitybasedonthetraditionalA2Oprocesswasaddedwithmulti-stageAO(MAO)toenhancethenitrogenandphosphorusremovaleffect．TheeffluentfromdifferentunitsoftheMWWTPwasstudied，andtheremovaleffectsofthepollutantsinthewastewaterespeciallyfordissolvedorganicmatter(DOM)bytheenhancedprocesswereanalyzed，byanalyzingthebasicwaterqualityindicators，ultravioletabsorptionspectrumandrelatedparameters，andcombinedwithmulti-variatestatisticanalysis．AftertreatmentoftheMAO-enhancedprocess，theaverageremovalrateofchemicaloxygendemand，4AOdissolvedorganiccarbon，totalnitrogen，totalphosphorus，ammonianitrogenwere95．14%，89．70%，94．53%，97．26%%and99．74%，respectively，whichmetfirstclassAofUrbanSewageTreatmentPlantPollutantDischargeStandards(GB18918-2002)．Withtheadditionofmulti-stageAOunits，theremovalrateofDOMwasincreased．Atthesametime，themolecularweightofDOMandthedegreeofagglomerationincreasedsignificantly;thestabilityofthecompoundsincreased．Thecorrelationanalysisofwaterqualityindexandultravioletfluorescencespectrumshowsthattheremovalofnitrogenandphosphorusismoreobviouswhenthetypeofsubstituentismainlyaliphaticchaininthearomaticring．Keywordsmultistageanoxicoxic(MAO);removalofnitrogenandphosphorus;municipalwastewater;reclamation;dissolvedorganicmatter(DOM);lowcarbonsource12。、3-45。、DOM6。、DOM7。GB18918—2002《》A。8。A2OMAOA2OA2OMAO。MAO、、。AO9。10。MAODOM11-12。DOMDOM13。、DOM。DOM-ultraviolet-visibleUV-Vis、14。DOM15-17。、MAO、MAODOMMAO。11.12×105m3d24h30dC∶N∶P16∶3.5∶1。A2OMAOA2OMAO、、A2O、MAO、、1。DOM·124·81#～10#。4000rmin5min0.45μmTOC15mgLpH6～7。1Fig.1FlowchartofamunicipalWWTPofBeijingCitywithmultistageAOprocess1.21.2.1TOCmultiNC-2100TOCAnalyticJenaGEＲNH+4-NTN、NO－3-N、NO－2-NCODCrTP18-20。1.2.2UV-1700-190～700nm1nm。203、253、254、260、355、436nmUVUV254、UV260100DOCSUVA254SUVA260SUVA256SUVA436E2E4SUVA253SUVA203E253E203。2MAOCODCr、NH+4-N、TN、TP95.14%、99.74%、94.53%97.26%13.36、0.14、3.310.46mgLGB18918—2002《》A。A2O5#TN17.26mgL71.54%TP34.89mgLMAO8#TN7.12mgL88.25%。MAO。MAOMAO。2.1MAO2.1.1TN、NH+4-N、NO－3-NNO－2-N2。2NH+4-NTN86%。NO－3-NNO－2-N、TNNH+4-NNH+4-NNO－3-N。2Fig.2ThechangesofnitrogenineachwastewatertreatmentunitA2O5#TNNH+4-N17.2513.70mgL。TNNH+4-NNO－3-N21-22。NH+4-NNO－3-NMAO。·224·4AOMAONH+4-NNH+4-NNO－x-NTNNH+4-N7.122.54mgLA。8#NO－3-NNO－2-N1.842.44mgLNO－2-NNO－2-N50%23。NO－2NO－2NO－3NO－2。DOM24-26。27NO－3-NNO－2-N。MAO94.53%。2.1.23。VFAsDPBVFAsPHB-β-poly-β-hydroxybutyrate。PHB。NO－3-NNO－3-NPHBNO－3-NNO－3-N28-29。A2OVFAsPHB3#TP80.28mgLTP97.26%。A2O5#TPPHB30-31TP5#TP。3TPFig.3ThechangesofTPineachwastewatertreatmentunitMAO。、PHB32。MAO8#TP16.21mgLTPA2O53.54。、、18。。MBＲ10#TP0.46mgL。2.1.3CODCrCODCr4。CODCr27.74%CODCr。A2O33-3433。55.59%CODCrCODCr36。CODCr37-39A2O5#·324·84CODCrFig.4ThechangesofCODCrineachwastewatertreatmentunitA。MAOCODCr49.89mgLMAOCODCr。MBＲCODCrCODCr0.04～0.45μm39。MBＲCODCr13.36mgL40-41。MBＲ、MAO、。2.2-2.2.1--DOM42。5。240～285nmBBπ→π*DOM18。240nm19。DOMπ。240nm46。2.2.2SUVA254DOM5-Fig.5UV-visspectraofeffluentsamplesofeachwastewatertreatmentunit43SUVA260DOMDOM44-46。E2E4DOM47-48E253E203E253E20349、、、48。A2OSUVA254、SUVA260、E2E4E253E2033#4#1DOMDOM、、、。DOMDOM。MAOSUVA254SUVA260。。E2E4E253E203MAODOMMAO。2.3MAO2。·424·4AO1Table1UVspectradataofwastewatersamples1#2#3#4#5#6#7#8#9#10#SUVA2541.050.992.052.522.202.302.462.472.040.26SUVA2600.990.931.992.462.152.242.372.391.940.29E2E43.559.1310.3511.6912.0812.0611.649.5319.531.00E253E2030.170.160.220.220.230.130.130.080.040.022CODCrTN、NH+4-NP＜0.01CODCrDOM51-52。MAODOM。TN、NH+4-NE253E203DOM。TPNO－3-NNO－3-NTPE253E203DOM。SUVA254SUVA260r0.999P＜0.0153。2E2E4r0.721P＜0.010.710P＜0.01、。DOM。2Table2PearsoncorrelationbetweenultravioletfluorescencespectraandtheotherwaterqualitychemicalindicatorsCODCrTNNH+4-NNO－3-NNO－2-NTPSUVA254SUVA260E2E4E253E