城镇污水处理厂国家地表类水提标工程设计李兴

20187·202· IV(510030)[]++(GB18918-2002)(A)(GB3838-2002)IV[][]TQ[]A[]1007-1865(2018)07-0202-02UpgradingDesignofMunicipalWastewaterTreatmentPlantforClassIVoftheNationalSurfaceWaterStandardLiXing,ZhongYu,SuWenyue(GuangdongEnvironmentalProtectionEngineeringResearchandDesignInstituteCo.,Ltd.,Guangzhou510030,China)Abstract:IntheUpgradingProjectoftheFirstPhaseofDongyuanCountyMunicipalWWTP,byadoptingtheprocessof“BiologicalAeratedFilter+EfficientSedimentationTank+PrecisionFiltration”,theeffluentwaterqualityindicatorsimprovefromClassAoftheNationalDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918-2002)toClassIVoftheNationalEnvironmentalQualityStandardforSurfaceWater(GB3838-2002).TheDesignideas,processflow,designparametersofmainstructures,andequipmentconfigurationwereintroducedindetail.Thecharacteristicsofprocessdesign,economicindicators,andoperationeffectweresummarized.Thisprojectcanbeusedforreferencefortheupgradingandreconstructionprojectofthesametypesofwastewatertreatmentplant.Keywords:wastewaterupgradingprojectbiologicalaeratedfilterefficientsedimentationtankprecisionfiltration201522016(GB3838-2002)IV115000m3/d2010A/A/O+DB44/26-2001(GB18918-2002)(A)5CODcr30~40mg/LBOD52.0~10mg/LSS8~10mg/LNH3-N2.0~5.0mg/L22.1DB44/26-2001(GB18918-2002)(A)DB44/26-2001(GB18918-2002)(A)GB3838-2002IV11Tab.1DesigninfluentandeffluentqualityCODcrBOD5SSTNNH3-NTP(mg/L)401010155(8)0.5(mg/L)30610151.50.32.2NH3-NTPNH3-NA/A/O10dNH3-N5mg/L(8mg/L)(BAF)TPSS10mg/LTP0.3mg/L2.32.3.1(BAF)[1][2]2.3.2[3]2.3.310~100µm5mg/L[4]2.4++1[]2018-03-01[](1991-)2018745369·203· 1Fig.1Flowchartofwastewatertreatmentprocess(BAF)+SSTP2.52.5.1(BAF)358m3/h10m18.5kW2.5.2(BAF)(BAF)CODcrBOD5NH3-N(BAF)153000/(125m3/h)35m26400mm3.57m/h20m3/m2·h60m3/m2·h40min/0.05kgBOD5/m3·d3.2m206.5m3315m36(51)6.5m3/min8mH2O15kW2(11)35m3/min8mH2O75kW3(21)350m3/h13.5m18.5kW35280UPVC2.5mm440mm2500EPDM0.25m3/h·1mm25%3.5~5kpa560m36~9mm3.2m1.8~2.3g/cm30.9~0.95g/cm362m330~50mm0.3m1615mm3.7kW11t4.9kW2.5.3TP127500/(312.5m3/h)8m52m26.0m3/m2·h6(42)10~65m3/hH=20m3.0kW11.2m5.0m3.0kW21.2m7.0m4.5kW28m7.0m2.2kW160m3UPVC80mm1.5m2.5.4SSSS5mg/L1110000~20000m3/d1600mm10μm1.5kW19.4m3/h60m2.2kW2.6(1)1.5mg/L(2)0.3mg/LPACPACPAC(3)[5](4)[6]2.2(5)[7](1)(2)(3)(4)(4)[8]31995.740.118/m3(2)2Tab.2Operatingcosts(/)(/m3)119.720.036235.360.06531.920.00447.500.01364.500.11842016811320172133Tab.3EffluentqualitymonitoringresultsCODcrBOD5SSTNNH3-NTP(mg/L)160.675.470.3090.29(mg/L)30610151.50.35++(GB3838-2002)IV(转173)2018745369·173·8~15min703()Ca(AlO2)2(CSA)3.1Ca(OH)2CaO+H2O=Ca(OH)2+64.9kJCa(OH)2AlH2OCa(AlO2)2Ca(OH)2+(Al+H2O)=3CaO·Al2O3·6H2O+3H2↑Ca(OH)2Al2O3Al(OH)3AlH2OH2H23.2JC/T407-200822JCT/407-2008[3]Tab.2TechnologyrequisitionofAluminumpowdercreamusedinaeratedconcreteblocks(JCT/407-2008)24~30min440%~60%16min80%30min“”3.321-2-2Fig.2Therelationcurveofgasreleasingspeedandslurrythickeningspeed2(1)0~5min60%Ca(OH)2Al2O3Al(OH)3(2)5~15minCa(OH)2CaOCaO(3)15~20min70(4)20~30min2030min4(1)(2)(3)8~15min70[1][M]1996[2]JC/T621-2009[S]2010[3]JC/T407-2008[S]2008(203)[1](BAF)[J]200524(1)57-59[2](BAF)[J]2016(3)140-140[3][J]2017(2)40-40[4][J]2017(12)106-107[5][J]200925(3)102-104[6][J]2012(7)67-70[7][J]2015(12)126-127[8]CN205603299U[P]2016