AAO工艺脱氮除磷运行效果分析李曈

58Vol．5No．820118ChineseJournalofEnvironmentalEngineeringAug．2011A/A/O*100124A/A/O。A/A/O83.2%A86.3%0.15kgBOD5/kgMLVSS·d10～12d。2%～2.5%。A/A/OX703A1673-9108201108-1729-06AnalysisonrunningeffectforbiologicalnitrogenandphosphorusremovalofA/A/OtechnologyLiTongHaoRuixiaLiuFengLiuJingCollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124ChinaAbstractInordertoimprovethescientificmanagementlevelandeffluentqualityofamunicipalwastewatertreatmentplantWWTPtherelationshipbetweennitrogenandphosphorusremovaleffectandoper-atingparametersoftheA/A/OtechnologywasstudiedbysamplingandanalyzingalongtheprocessinWWTPofBeijing．Theresultsshowedthatthetotalnitrogenremovalratewas83.2%andthemainformofnitrogenwasnitratenitrogenineffluent．TheTPconcentrationineffluentcouldreachthe1gradeAlevelofnationaldischar-gingstandardinChinabasicallyandtheTPremovalratewasover86.3%．ThedenitrifyingphosphorusremovalplayedaremarkableroleintheanoxicphaseofA/A/Oprocess．Therelationshipbetweennitrogenandphos-phorusremovaleffectandsludgeloadingexpressedinversevariation．SludgeretaintimeSRThadanobviousimpactonphosphorusremoval．Whenthesludgeloadingwasabout0.15kgBOD5/kgMLVSS·dandtheSRTwasabout10～12dinA/A/Oprocessnitrogenandphosphorusremovalrateswereupto81%and88%re-spectively．Therewasaninversevariationrelationshipbetweenthephosphorusaccumulationandthesludgeemis-sioncapacitiesinthewastewatertreatmentsystem．Whenthesludgeemissioncapacitiesmaintainedabout2～2.5percentofinfluentphosphorusremovalcanbecontrolledinthestableandeconomicstatus．KeywordsA/A/Oprocessbiologicalnitrogenandphosphorusremovalphosphorusaccumulationop-erationalparameter5077800480820062009ZX07104-0062010－10－122010－12－291990～。[e-mail]*[e-mail]、。。--A/A/O5COD、、1-4。A/A/O、、DO56。-A/A/O-、、。、、、。11.120m3/dA/A/OAB。20093—591。、、3、、、、COD《》4。1Fig．1SewagetreatmentprocessesandsamplingpointsMLSS3300～3600mg/L1.5～2.4mg/L0.10～0.16kgBOD5/kgMLSS·d95%～100%8～16d。1。1Table1WaterqualityofinfluentandeffluentinaWWTPmg/LCOD400～8006030～45KN60～90TN2010～20NH3-N50．5～7．5TP5．1～7．51≤11．2-Specords100Je-naCARYEclipseSimplicity。、。1.30.99993.8%0.1%。22．1、、、、2。。2、、Fig．2Concentrationchangeoftotalnitrogenammonianitrogenandnitratenitrogenintheprocess203718A/A/O58.92mg/L。、。A/A/O2.37mg/L96.0%83.2%。A/A/O、。10.01mg/L58%。2．23。。A/A/O5.82mg/L26.89mg/L8.49mg/L18.4mg/L68.4%3Fig．3Concentrationchangeoftotalphosphorusinthetechnologyprocess2.99mg/L5.5mg/L64．8%。1mg/LA86.3%。2.33A/A/O。NO－3PHB7。1、2P=Q+QC+QC－Q+Q+QCQ+Q+Q1P=Q+Q+QC－CQ+Q+Q=C－C2Pmg/LPC、mg/LQ、m3/d。4.97mg/L、5.5mg/L。8A/A/OHRT8h70%250%A/A/O36%。9-51.8%48.2%。10A/A/O。A/A/O。33.1COD/TN、COD/TPA/A/OVFAVFAPHB13715PHB。A/A/O、、。11SBRCODC/NCOD150mg/L200mg/LC/NCODC/N。COD500～600mg/LBOD5/COD＞0.46A/A/O。COD/N4～1512C/P32A/A/OC/PC/P3213。COD/TN、COD/TP4。4Fig.4InfluenceofCOD/TNandCOD/TPonnitrogenandphosphorusremovalrate4COD/TN、COD/TP4～6、80～100、A/A/O。3.2、SRT。。F/M、。。、5。、6。5、Fig.5CorrelationbetweenTNremovalrateandSRTF/M55d。23718A/A/O6、Fig．6CorrelationbetweenTPremovalrateandSRTF/M6、。F/M0.15kgBOD5/kgMLVSS·d10～12d81%、88%。3．3、14。7。△P△P＜0△P=0△P＞0。ΔP=QC+QC－QC－QC－P－P37Fig．7PhosphorusmaterialbalanceinsewagetreatmentsystemP、P0.003%0.007%。ΔP=QC+QC－QC－QC48。8Fig．8Relationshipbetweenphosphorusaccumulationandsludgeemissioninthesystem810%。4000～5000m32%～2.5%。41A/A/O83.2%1mg/LA86.3%。2A/A/O33715、。3。F/M0.15kgBOD5/kgMLVSS·d10～12d81%88%。410%。2%～2.5%。1．A2/O．199814327-30LouJinshengXieShuibo．Astudyonenhancingtreat-menteffectivenessofA2/Oprocessandrelatedmeasures．ChinaWater＆Wastewater199814327-30inChi-nese2．A2/O．200626112228-2232XuWeifengChenYinguangGuGuoweietal．ResearchonsubstratetransformationmechanisminA2/Oprocess．EnvironmentalScience200626112228-2232inChi-nese3YilmazG．LemaireR．KellerJ．etal．Simultaneousnitrificationdenitrificationandphosphorusremovalfromnutrient-richindustrialwastewaterusinggranularsludge．BiotechnologyandBioengineering20081003529-5414KondoT．TsunedaS．EbieY．etal．Characterizationofthemicrobialcommunityintheanaerobic/oxic/anoxicprocesscombinedwithsludgeozonationandphosphorusad-sorption．JournalofWaterandEnvironmentalTechnology200973155-1625SoejimaK．OkiK．TeradaA．etal．Effectsofacetateandnitriteadditiononfractionofdenitrifyingphosphate-ac-cumulatingorganismsandnutrientremovalefficiencyinan-aerobic/aerobic/anoxicprocess．BioprocessandBiosystemsEngineering2006295-6305-3136．A2/ODO．200925970-74ZhangRongbingWenYangBaoHaipengetal．DOspa-tialdistributionandevaluationindicatorsforDOcontrolqualityinA2/Oprocess．ChinaWater＆Wastewater200925970-74inChinese7．．20106161540-1544WangQiangWangJihuaZhangXiaoqietal．Growthandcharacteristicsofnitrogenandphosphorusremovalofadenitrifyingphosphateaccumulatingbacteria．JournalofChemicalIndustryandEngineering20106161540-1544inChinese8．A2/O．200941846-50WuChangyongPengYongzhenPengYietal．Charac-teristicsofdenitrifyingphosphorusremovalinA2/Oprocess．JournalofHarbinInstituteofTechnology200941846-50inChinese9．-．200848992-94ZhangZhichaoHuangXiaXiaoKangetal．Enhancedphosphorusremovalinbiologicalnitrogenandphosphorusremovalprocessusingmembranebioreactor．J．TsinghuaUniv．Sci．＆Tech．2