粉煤灰加气混凝土颗粒曝气生物滤池处理污水试验研究王厚成

2　7环境工程学报Vol.2,No.720087ChineseJournalofEnvironmentalEngineeringJul.2008王厚成　曾正中＊　南忠仁(,,730000)　　、,,,;2,30.72m3/(m2·d)。8.04～10.08kgCOD/(m3·d),CODNH3-N74.2%92%,COD、NH3-N60mg/L1mg/L,GB18918-2002A,。　　　　COD　NH3-N　X703.1　　　A　　　1673-9108(2008)07-0911-05Experimentsonbiologicalaeratedfilteroffly-ashaeratedconcreteparticlesinwastewatertreatmentWangHoucheng　ZengZhengzhong　NanZhongren(NationalLaboratoryofWestChina'sEnvironmentalSystem,CollegeofEarthandEnvironmentalScience,LanzhouUniversity,Lanzhou730000)Abstract　Inthisexperimentresidentialwasterwaterwastreatedusingthefly-ashaeratedconcreteparticlesBAFdisposalatdifferentgastoliquidratiosandhydraulicloadings.Theresultsshowthatnitrifierwaseasytogrowonthefaceoffly-ashaeratedconcreteparticles,andbestgastoliquidratiosandhydraulicloadingswere2∶1and30.72m3/(m2·d),respectively,accordingtothetreatmentefficiencyandeconomicaloperation.WhentheCODloadwaskeptbetween8.04and10.08kgCOD/(m3·d),theaverageremovalratesofCODandNH3-Nreached74.2%and92%,respectively,andtheaverageeffuentconcentrationsofCODandNH3-Nofwastewaterwas60mg/Land1mg/L,whichmeasureduptheAstandardsinthefirstclassofGB18918-2002.Thestudysuggestedthatthebiologicalaeratedfiltercanbeusedtotreatwastewater.Keywords　biologicalaeratedfilter;fly-ashaeratedconcreteparticles;packingmaterials;CODremovalrate;NH3-Nremovalrate:(40671167):2007-11-15;:2008-01-24:(1980～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　208090,[1]。,。,、、、,、。、,,。、,2.5～2.7g/cm3、1.4～2.2g/cm32.0～2.3g/cm3[2,3],。[4]。、、、,,,(1.3～1.5g/cm3),。2,。。,。1　、1.1　1。,18cm,150cm,,,。30cm,4,4。、,。,1。1　Fig.1　Schematicdiagramofexperimentalset-up1　Table1　Maindesignparametersforbiologicalaeratedfilter(mm)(L)200100030015005.125.47.638.11.2　,,。23。2　Table2　CharacteristicsofBAFinfluentCOD(mg/L)NH3-N(mg/L)SS(mg/L)pH144～29612～35.640～686.4～7.68000～10000300～1000200～300-3　Table3　CharacteristicsofBAFmedia(m2/g)(g/cm3)(g/cm3)(%)(mm)9.0～10.01.3～1.50.5404～101.3　:COD、NH3-N、SS、pH。:COD;NH3-N;SS;;pHHANNAPH。2　　2.1　　[5],15～26℃,,48h,。2,。、(3.84m3/(m2·d),2),,2,CODNH3-N50%45%,[6]。2.2　2.2.1　适应阶段,(COD136～280mg/L),7.68m3/(m2·d),2,3d,COD47%～87%。2.2.2　运行参数试验,17～23℃。:(1):15.36m3/(m2·d),1/4、1/2、1、2、48,3d,COD。9127:(2):,3.84、7.68、15.36、30.7261.44m3/(m2·d),3d,。2.2.3　填料层高度工作性能试验,,。2.2.4　反冲洗,,,,5d。、32L/h160L/h,10min,,5min,32L/h10min,。3　3.1　CODNH3-N[7～9],15.36m3/(m2·d),COD、NH3-N2。COD、NH3-N,,COD,1/41/228.3,1/2COD,1/2。NH3-N8.8,1/4。,,[10]。,,[11],,,,。,。NH3-N(1/2)COD(2),,,,,,,NH3-N。2～4,COD74.7%～75.3%,,2～4,。NH3-N1/2296.5%～97.3%,,1/2～2,,2,。2　CODNH3-NFig.2　CODandNH3-Nremovalratesatdifferentgas-to-liquidratios3.2　CODNH3-N,2,CODNH3-N3。3.84～30.72m3/(m2·d),CODNH3-N74.8%～75.3%91.1%～94.8%,。,(),。,。。,、,。COD(15.36m3/m2·d)NH3-N(15.36m3/m2·d)。30.72m3/(m2·d),COD,27.4,NH3-N5.4,COD。COD、,9132、。NH3-N,,CODNH3-N。,3.84～30.72m3/(m2·d),。15.36m3/(m2·d),CODNH3-N,30.72m3/(m2·d)。3　CODNH3-NFig.3　CODandNH3-Nremovalratesatdifferenthydraulicloadings3.3　COD、NH3-NCOD23.84～30.72m3/(m2·d)、2。,15.36m3/(m2·d),2。,COD,COD,COD160～312mg/L,4.03～7.84kgCOD/(m3·d),CODCODNH3-N4。,COD,NH3-N。,。,。,,。,CODNH3-N,[12],,,,4NH3-N。,。,,NH3-N,NH3-N。,COD,70mg/L,5.4～7.8kgCOD/(m3·d)。4　CODCODNH3-NFig.4　InfluenceofinfluentCODonCODandNH3-Nremovalrates3.4　CODNH3-N,,CODNH3-N[13]。2,15.36m3/(m2·d)-COD、NH3-N5。0～10cm,CODNH3-N。10～40cm,COD,0～10cm,SS,SS0～10cmCOD。10～40cmCOD。,NH3-NCOD。,,,,,;,5　CODNH3-NFig.5　RelationshipbetweenthicknessofmedialayerandCOD,NH3-Nremovalrates9147:,,,NH3-N[14]。,40～100cmNH3-NCOD。3.5　6710cm;67,,,,。NH3-N。4　　(1)COD。1/2,COD;30.72m3/(m2·d),COD。NH3-N,NH3-N。(2)2,。3.84～30.72m3/(m2·d),,2,30.72m3/(m2·d)。(3)5.4～7.84kgCOD/(m3·d),8.04～10.08kgCOD/(m3·d)、2、30.72m3/(m2·d),COD74.2%,60mg/L,NH3-N1.0mg/L,GB18918-2002A。(4),。[1],,..:,2002.26～27[2],..:,1987.2～9[3]《》..:,1992.213～219,1118～1129[4],,,..,2006,24(1):9～13[5],..,1992,8(3):13～17[6],.,..,2001,29(10):1240～1245[7],,..,1998,3(19):43～46[8],,,..,2006,7(9):88～93[9],,..,2006,22(9):74～77[10]DilekF.B.,AndersonG.K.Investigationintothemi-crobiologyofahighratejet-loopactivatedsludgereactortreatingbrewerywastewater.Wat.Sci.Tech.,1996,34(5～6):107～112[11],,,..,2002,23(1):58～61[12]..,2003.19～20[13]Fdz-PolancoF.Spatialdistributionofheterotrophsandni-trifiersinasubmergedbiofilterfornitrification.WaterRes.,2000,34(16):4081～4089[14],,..,1996,17(1):15～17915