2006年4月重庆大学学报(自然科学版)Apr.2006 第29卷第4期JournalofChongqingUniversity(NɑturɑlScienceEdition)Vo.l29 No.4 :1000-582X(2006)04-0091-04*张红晶1,2,龙腾锐1,何 强1,王 胤1(重庆大学1.城市建设与环境工程学院;2.化学化工学院,重庆 400030) :为了确定侧向流曝气生物滤池(LBAF)的运行周期,采用了测定进出口间水头损失与出水水质关系的方法.实验表明:1)LBAF的运行周期是根据进出口间水头损失结合出水氨氮浓度来确定的.2)LBAF的水头损失与竖向流曝气生物滤池不同,经历了“稳定-增高-再稳定”3个阶段.3)在水力负荷分别为0.45m/h、0.73m/h和1.1m/h时,LBAF的运行周期是21d、8d和5d,与传统曝气生物滤池相比,采用侧向流曝气生物滤池(LBAF)可以适当延长运行周期.:侧向流曝气生物滤池;运行周期;反冲洗 :X703.1:A (LBAF),,、、,[1];SS,,、SS,,,SS,[2].LBAF,LBAF.1 试验工艺流程与方法1.1 试验设备,,,LBAF.LBAF1,2.28m,0.70m,1.00m,A、B2,A10~15mm,25mm,,S,,,,,,,,,.B3~6mm,,.:10mm(15~25mm),,,,.28mm,、、3.1 LBAF1.2 试验水质1.*:2005-12-15::(1967-),,,,,.1 mg/LCODBOD5SSpH136~59639.6~197.115.8~41.534.9~69.0043~2203.1~7.86.7~7.9278135.530.049.001375.07.21.3 检测项目与分析方法[3],.、2.2 、CODCrHACHCODReactor、HACHDR/2010SSDT-100、CS101-2D7212 实验结果与讨论2.1 LBAF反应器运行周期内的沿程水头损失3.2,LBAF,2.2,LBAF,0~0.28m,A(0.28~1.40m);A,;B(1.40~4.00m),,;,,.3 /(mh)AB/h/℃10.225∶15∶19.332004.10.01-2004.11.1023.6~18.220.385∶15∶15.472004.11.21-2005.01.3117.5~10.130.625∶15∶13.512005.02.26-2005.03.1013.9~17.9 A,,A,“S”(1),,A,.B“S”,.,,.2 2.2 沿程水头损失的实验结果分析LBAF,.[4],z1g+p1ρ+u212=z2g+p2ρ+u222+∑hf,(1)Z1、Z2、;P1、P2、;u1、u2、;∑hf.u1=u2,P1=P2,(1),Z1-Z2=∑hf/g.(2) (2),.,.,[4]:∑hf=λldeu22,(3)λ,Re,;l;de,;u,.,Re,λ,u,(3),,,.,,,,deu,(3),,.LBAF,,,(3),.2.3 进口和出口间的水头损失和出水水质的关系3,3-8.1,,18d92重庆大学学报(自然科学版) 2006年3 1NH+4-N4 1COD5 2COD6 2NH+4-N7 3COD8 3NH+4-N,,COD,.2,7d,,8d,COD.3,,,COD.2.4 LBAF的运行周期2[5]:1),,.2),,.、,.,,.LBAF[6],,,“--”3(9).,LBAF,.,,COD,,,.9 393第29卷第4期 张红晶,等: 侧向流曝气生物滤池运行周期的确定,LBAF,34.4 LBAF123/d20853 结 论1)LBAF;2)LBAF,“--”3;3)0.45m/h、0.73m/h1.1m/h,LBAF21d、8d5d.:[1] LETALLECX,ZEGHALS,VIDALA,eta.lF.ModellingandSimulationofaBiofilterFiltration.InNewandEmergingEnvironmentalTechnologiesandProductsforWastewaterandStormwaterCollection[Z].Toronto,Canada.WEFSpecialtyConferenceSeriesProceedings,2000,8/33-8/44.[2] MOORER,QUARMBYJ,TONSTEPHENSON.TheEffectsofMediaSizeonthePerformanceofBiologicalAeratedFilters[J].WaterResearch,2001,35(10):2514-2522.[3] .()[M].:,2002.[4] .()[M].:,1998.[5] IK-KEUNYOO,DONGJINKIM.EffectsofHydraulicBack-washLoadonEffluentQualityofUpflow[J].BAFJEnvi-ronSCIHealth,2001,A36(4):575-585.[6] ,,.()[M].:,2002.OperationCycleinLateralFlowBiologicalAeratedFilterZHANGHong-jing1,2,LONGTeng-rui1,HEQiang1,WANGYing1(1.CollegeofUrbanConstructionandEnvironmentalEngineering;2.CollegeofChemistryChemicalEngineering;ChongqingUniversity,Chongqing400030,China)Abstract:InordertodeterminetheoperationcycleofLBAF,themethodtestingheadlossbetweenexitandentranceandwaterqualityisused.Theresultsoftheexperimentindicatetha.t1)theoperationcycleofLBAFisdeterminebyhead-lossandtheresidualNH+4-Nconcentration.2)ItisdifferentfromBAFinheadloss,headlossofLBAFgoesthroughthreestages:‘steady—goingup—resteady’.3)whenhydraulicloadis0.45m/h、0.73m/hand1.1m/h,theopera-tioncycleofLBAFis21days、8daysand5days.IncomparisonwithtraditionalBAF,theoperationcycleofLBAispostponed.Keywords:lateral;flowbiologicalaeratedfilter;operationcycle;backwash(编辑 姚 飞)94重庆大学学报(自然科学版) 2006年