AAO工艺运行过程中磷的迁移与积累规律郝瑞霞

4310201110JOURNALOFHARBININSTITUTEOFTECHNOLOGYVol.43No.10Oct．2011A/A/O曈[e-mail]/A/O、．A/A/O、0.15kg/kg·d10～12d88%2．0%～2.5%．A/A/OX703A0367－6234201110－0129－05AnalysisonremovingandaccumulatingapproachofphosphorusinA/A/OtechnologyHAORui-xiaLITongLIUFengLIUJingCollegeofArchitectureandCivilEng[e-mail]ientificmanagementlevelandeffluentqualityofamunicipalwastewatertreatmentplantWWTPtherelationshipbetweenthephosphorusremovalapproachandoperatingparametersoftheA/A/OtechnologywasanalyzedbysamplingandanalyzingsamplesfromthetreatmenttechnologyprocessofaWWTPinBeijingandalsothephosphorusmaterialbalancewasassessedforthesewagetreatmentsystem．TheresultsshowedthatthedenitrifyingphosphorusremovalplayedremarkablyaroleforphosphorusremovalintheanoxiczoneofA/A/Oprocess．Theabsorptionofphosphorusinanoxiczonehadexceededthequantityintheoxiczone．Thenitrateconcentrationinthereturnednitrifyingliquidhadaninfluenceonthedenitrifyingphosphorusremoval．TherelationshipbetweenphosphorusremovalandsludgeloadsludgeretaintimeSRTshowednegativecorrelation．Whenthesludgeloadwasabout0.15kg/kg·dandtheSRTwasabout10－12dinA/A/Oprocessthephosphorusremovalratewasupto88%．Therewasalsoanegativecorrelationrelationshipbetweenthephosphorusaccumulationandthesludgeemissioncapacitiesinthewastewatertreat-mentsystem．Whenthesludgeemissioncapacitieswerecontrolledto2.0－2.5percentinflowofthetreatmentplantthephosphorusremovalefficiencycouldbekeptonstableandeconomicstatus．KeywordsA/A/Oprocessdenitrifyingphosphorusremovalphosphorusaccumulationoperatingparameter2010－06－28．50778004808200062009ZX07104－006．1960—．、．．－－A/A/OCOD、、．A/A/O、、DO．denitrifyingphosphorusre-movalbacteriaDPB1－4A/A/O5－6．－A/A/O－、、、．11.120m3/dA/A/OAB．20093～591．、、、、COD《》4．1．脱水滤液②总进水①③粗格栅曝气沉砂池④⑤⑥⑦厌氧段缺氧段好氧段沉淀池出水⑧排泥污泥回流⑨硝化液回流11mg·L－1COD537．006050.50TN112.152018.79GB18918—2002BNH3－N58.9250.58TP5.821.00.80A1.2－Specords100JenaCARYEclipseSimplicity．、．1.30.99993.8%0.1%．22.12．．A/A/O5.82mg/L26.89mg/L8.49mg/L·031·4318.4mg/L68.4%2.99mg/L5.5mg/L64.8%．1mg/LA86.3%．35302520151050①③④⑤⑥⑦⑧取样点籽(总磷)/(mg·L-1)22.22A/A/O3．NO3－PHB．7A/A/O．851.8%48.2%．A/A/O．NO3－NO3－NO3－NO3－NO2－9．NO3－．10．11．12NO3－15mg/LTP23%NO3－25～45mg/LTP60%70.4%NO3－55mg/LTP34%．．5～15mg/L20～60mg/L95%2.5～7.5mg/L10～30mg/L0.2～3.5mg/L10%～95%．NO3－25mg/L55mg/L25～55mg/LTP80%．33.1ρCOD/ρTPA/A/O、．．COD500～600mg/LρBOD5/ρCOD＞0.46A/A/O．32A/A/O3213．ρCOD/ρTP3．ρCOD/ρTP80～100ρCOD/ρTP．3.2、SRT·131·10A/A/O．．F/M、．．1009080706050磷去除率籽%(COD)/籽(TP)130120110100908070籽%(COD)/籽(TP)12345678910取样次数磷去除率/%3ρCOD/ρTPTP、4．、．0.15kg/kg·d10～12d88%．3.3、．5．1009080706050磷去除率泥龄20151050泥龄/d12345678910取样次数去除率/%（a）总磷去除率与泥龄关系1009080706050磷去除率污泥负荷0.200.150.100.050污泥负荷/(kg·kg-1·d-1)12345678910取样次数去除率/%（b）总磷去除率与污泥负荷关系4、脱水滤液Q脱水滤液C脱水滤液Q进水C进水栅渣P渣沉砂P砂一级处理二级处理A-A-O+沉淀池Q出水C出水剩余污泥Q剩余污泥C剩余污泥5ΔPΔP＜0ΔP=0ΔP＞0．ΔP=QC+QC－QC－QC－P－P．1P、P0.003%0.007%．ΔP=QC+QC－QC－QC．26．10%．4000～5000m3/d2%～2.5%·231·43．876543210123456789100.60.40.20-0.2-0.4-0.6磷累积量/(t·d-1)排泥量/(103m3·d-1)排泥量驻P取样次数641A/A/O31mg/LA86.3%．2A/A/O．3、．0.15kg/kg·d10～12d88%．410%．2．0%～2.5%．1．A2OJ．20091411846－50．2YILMAZGLEMAIRERKELLERJetal．Simulta-neousnitrificationdenitrificationandphosphorusre-movalfromnutrient－richindustrialwastewaterusinggranularsludgeJ．BiotechnologyandBioengineering20081003529－541．3KONDOTTSUNEDASEBIEYetal．Characteriza-tionofthemicrobialcommunityintheanaerobic/oxic/anoxicprocesscombinedwithsludgeozonationandphos-phorusadsorptionJ．JournalofWaterandEnviron-mentalTechnology200973155－162．4SOEJIMAKOKIKTERADAAetal．Effectsoface-tateandnitriteadditiononfractionofdenitrifyingphos-phate－accumulatingorganismsandnutrientremovalef-ficiencyinanaerobic/aerobic/anoxicprocessJ．Bio-processandBiosystemsEngineering2006295/6305－313．5．A2/ODOJ．200925970－74．6．J．201061161540－1544．7．J．2010361828－31．8．－J．200848992－94．9．J．2007356120－126．10．J．2006371402－403．11．J．200422132－35．12．J．2007235806－808．13．C/PA2/OJ．2005156191765－1769．·331·10A/A/O