城镇污水处理厂好氧池出水加药絮凝试验

-1-11221.3001912.311203pHSSPAC:X703.1:X703.1:Bxxxx-xxxxxxxx-xxxxxxxxxxxxxx-xxxx-xxDosingFlocculationTestabouteffluentwaterofMunicipalWastewaterTreatmentPlantAerobictankMaQian-li1SongRui2LiHao-ran1ChenFan-zhen1HaoHe1TianJian-quan1ChenLu31.TianjinHuankeWaterServiceCo.,Ltd.Tianjin3001912.HangzhouXiaoWaterMunicipalEngineeringCo.,Ltd.Hangzhou3112033.TianjinAcademyofEnvironmentalSciencesTianJin300191AbstractThroughDosingTestabouteffluentwaterofAerobictank,Wehavediscussedtheeffectofdosingvolume,watertemperature,pHvalue,MLSSandstirringtimeoncoagulationandsedimentation,andWehavealsoverifiedthecorrectnessofthetestresultsthroughtheproductiontest.Therefore,wehavesolvedtheproblemsofcertainamountofwaterintotheWWTPduetooverdesignsize,andtheeffluentSSwithoutstablecompliance.KeywordsFlocculationPrecipitationDosingPolyaluminiumchloridePAC10000m3/dGB18918?2002?+?13500m3/dSSB1.2m3/m21.62m3/m2SSSSSS11.111pH111311000ml61000ml-2-500ml200ml61ml2ml5ml34PAC13ABCDGB15892-2003Al2O328%1.222pH71500~2250mg/L1.363[1]315pH10g100ml10%1000ml1000ml15101.422.1ABCD41500mg/L22pH6.9180r/min30s13004005006007008009001000306090120150180210240270300(s)(mL)D#C#B#A#1-3-Fig.1Screeningexperiment1ABCD4A#AA#2.210mg/L15mg/L30mg/L50mg/L1500mg/L22pH6.9180r/min30s22003004005006007008009001000306090120150180210240270300(s)(mL)0mg/L10mg/L15mg/L30mg/L50mg/L2Fig.2EffectofDosingvolumeonCoagulationandsedimentation230mg/L10~15mg/L30mg/L30mg/L2.310151825302250mg/LpH7.215mg/L180r/min30s3-4-20030040050060070080090010006090120150180210240270300(s)(mL)10151825303Fig.3EffectofWaterTemperatureonCoagulationandsedimentation310~3010~1518152.4pHpH567891530mg/L2215mg/L180r/min30s4-5-20030040050060070080090010006090120150180210240270300(s)(mL)pH=5pH=6pH=7pH=8pH=94pHFig.4EffectofpHValueonCoagulationandsedimentation4pH5~9pHpH7pH2.52250mg/L1500mg/L750mg/L22pH7.215mg/L180r/min30s5-6-1002003004005006007008009001000306090120150180210240270300(s)(mL)2250mg/L1500mg/L750mg/L5Fig.5EffectofMLSSonCoagulationandsedimentation5750~2250mg/L2.620304560120s2250mg/L22pH7.215mg/L180r/min6-7-30040050060070080090010006090120150180210240270300(s)(mL)20s30s45s60s120s6Fig.6EffectofStirringtimeonCoagulationandsedimentation620~45s45~120s45s33.110.86m311.75m3330.55kW20240L/h00.4MPa0.37kW3.213500m3/d1.62m3/m215mg/L12230s7CODSSNH3-NTP711Tab.1InfluentandeffluentqualityofProductiontest(COD)/(mgL-1)(SS)/(mgL-1)(NH3-N)/(mgL-1)(TP)/(mgL-1)(MLSS)/(mgL-1)pH/-8-443312.525.43.07.222148.53013.50.61950~23207.222226.51212.30.22050~24007.2221SSCODNH3-NTPSSSSTPTPTPNH3-N3.31850/15mg/L0.02780.37kW0.55kW320.55kW0.00370.0315410~15mg/LpH5~9pH45sSS[1].[M].:,[e-mail]15208387765