AO2FentonBAF工艺处理焚烧垃圾渗滤液试验研究

、、、、。。201058270kt·a-1[1]。。。1CODB/C0.6～0.8[2-4]。2A/O2BAF。11.170L240L。。FentonBAF。Fenton。FentonBAFBAF。1.2COD38～44g·L-12.0～2.5g·L-1pH6.5～7.5。1.3。BAF。1.4CODGP-11Fig.1TestprocessA/O2-Fenton-BAF“”5100062A/O2FentonBAF。COD220g·m-3·d-1COD85.3%92.9%FentonH2O2:COD=2n(Fe2+):n(H2O2)=1BAFCOD188.6g·m-3·d-1COD80mg·L-12mg·L-1。2。Fenton-X703.1A1000-3770(2012)02-0[e-mail][e-mail]38220122TECHNOLOGYOFWATERTREATMENTVol.38No.2Feb.,2012112Hitachi-330pHPHS-25pH[5]。22.1A/O2COD75g·m-3·d-1、3.8g·m-3·d-1。115、COD220g·m-3·d-1、9.6g·m-3·d-1。COD2。2。COD。COD85.3%92.9%。2.2。2A/O2COD12。1CODCOD。2.1%。。。2。。。COD。2.3A/O2COD。Fenton-BAF。FentonCODBAF[6]。2.3.1FentonFenton、、pH、、。FentonpH3pH5、1hFentonCOD。1H2O2n(Fe2+):n(H2O2)=1pH81hH2O23。3H2O2COD2COD75.3%H2O205101520253035404505001,0001,5002,0002,5003,0003,500
 COD/mgLt/d2(a)COD2(b)2A/O2CODFig.2TheeffectofA/O2onCODandammonianitrogenremoval051015202530354045020406080100120140160180
 
(NH-N)/mgLt/d220223272.156.311.16.862.064.2685.367.41CODA/O2CODTab.1TheeffectofinfluentCODloadonthecontributionofeachunitCODremovalofA/O2/g·m-3·d-1/%9.698.516.315.756.36.8615.84.2588.426.82A/O2Tab.2TheeffectofinfluentammonialoadonthecontributionofeachunitammoniaremovalofA/O2/g·m-3·d-1/%A/O2-Fenton-BAF113H2O2COD1.5。H2O2Fe2+Fe3+H2O2·OHH2O2[7]。2FeSO4·7H2OH2O2:COD=2pH81hFeSO4·7H2O4。4n(Fe2+):n(H2O2)=1COD75.3%85.7%FeSO4·7H2O。Fe2+Fe2+·OHFe2+H2O2·OH·OH[8]。n(Fe2+):n(H2O2)=1FentonFeSO4·7H2OFe3+“”。FentonH2O2:COD=2、n(Fe2+):n(H2O2)=1、pH=5、1h。FentonCOD162.4mg·L-115.5mg·L-1。2.3.2BAFBAF12cm25cm。18LFenton16mL·min-1COD3。3BAF4COD70mg·L-11.7mg·L-14。BAF188.6g·m-3·d-1。3COD220g·m-3·d-1A/O2COD85.3%92.9%COD2232g·m-3·d-1A/O2COD67.4%81.7%。2。。FentonH2O2:COD=2n(Fe2+):n(H2O2)=1。Fenton-BAFCOD70mg·L-11.7mg·L-1。BAFCOD188.6g·m-3·d-1。[1].[J].,2010(9):10-15.[2]RobinsonHD,BarrMJ,LastSD.Leachatecollection,treatmentanddisposal[J].WaterandEnvironmentJournal,1992,6(4):321-332.[3]HeP,XueJ,ShaoL,LiG,etal.Dissolvedorganicmatter(DOM)inrecycledleachateofbioreactorlandfill[J].WaterResearch,2006.40(7):1465-1473.[4],,,.A2/O[J].,2001,17(11):13-16.[5]《》.[M].4.:,2002.[6],,,.FentonBAF[J].,2007,1(10):42-45.[7],,,.Fenton[J].:,2003,42(3):440-444.[8],,.Fenton“”[J].,2005,13(3):30-32.4FeSO4·7H2OCODFig.4TheeffectofFeSO4·7H2OdosageonCODandcolorremoval0.00.51.01.52.02.53.0020406080100
/%H2O2:COD3H2O2CODFig.3TheeffectofH2O2dosageonCODandcolorremoval0.00.51.01.52.02.53.0020406080100
/%01234162.4104.9128.681.2270.0015.475.9226.9271.7601.6763CODTab.3TheCODandammonianitrogenchangesunderthedifferentinfluentsρ(NH4+-N)/mg·L-1COD/mg·L-1118382114EXPERIMENTSTUDYONCERAMICMEMBRANEREMOVINGHIGHTURBIDITYINWATERTREATMENTZhangJianguo1,ShengDeyang1,GuoJianning2,ZhangXihui2(1.DongjiangWaterCompanyLimited,Dongguan523112,China;2.GraduateInstituteatShenzhenTsinghuaUniversity,Shenzhen518055,China)Abstract:Inordertosolvingthepossibleventureofhighturbiditywatersourceinwaterworks,studywasmadeonceramicmembranefluxvarietylawandreomovingeffectforwaterturbidityandgranulesubstanceinthearticle.Resultsshowed:Withmembraneapertureincreasing,membranefluxincreased.Membranefluxdecreasedfastinthefiltrationearlierperiod,andbecamesteadybasically10minlater.whenwatersourceturbiditywas12NTU,fouraperturemembranefluxwaslarger,about500～600L·m-2·h-1,whenwatersourceincreasedto50～500NTU,fouraperturemembranefluxwassmaller,about300～400L·m-2·h-1.Withmembraneapertureincreasing,ceramicmembranewaterturbidityafterfiltrationdidn'tchangebasically.Whenwatersourceturbiditywas12～500NTU,fouraperturemembranewaterturbidityafterfiltrationwassamebasically,about0.1NTU.Morethan2μmgranulesizeinthewateraftermembranefiltrationwas2～5μmmostly,about80%oftotalgranulenumber.Whenwatersourceturbiditywas500NTU,granulenumberinthewaterafter5and10nmaperturemembranefiltrationwassamebasically,Morethan2μmgranulenumberwasabout30～80CNT·mL-1,granulenumberinthewaterafter50and100nmaperturemembranefiltrationwas215and346CNT·mL-1respectively.Keywords:ceramicmembrane;highturbidity;watertreatment500～600L·m-2·h-150、100、500NTU4300～400L·m-2·h-1。12、50NTU40.07～0.1NTU100、500NTU100nm0.10～0.16NTU。2μm2～5μm80%5、10nm＞2μm30～80CNT·mL-150、100nm500NTU215、346CNT·mL-1。[1],,,.[J].,2000,16(3):44-46.[2].[J].,2006,22(2):91-94.[3],.[J].,2002,33(4):15-17.[4],,,.α-Al2O3[J].,2009,30(2):160-165.[5],,,.19CFD[J].,2007,58(8):2021-2026.[6],,,.50nm[J].:,2007,8(1):82-85.[7]GB5749－2006[S].WASTELEACHATETREATMENTUSINGA/O2-FENTON-BAFPROCESSHuangZhicong,WangXiaojun,LiuYubin(TheKeyLaboratoryofPollutionControlandEcosystemRestorationinIndustryClusters,SchoolofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:Takingleachatefromawasteincinerationpowerplanasobject,A/O2-Fenton-BAFintegratedprocesswasusinginpilotplanttest.Whentheinfluentloadwas220g·m-3·d-1,theremovalratesofCODandammoniawere85.3%and92.9%respectively.AftertheadvancedtreatmentbyFenton-BAF,theCODandammoniaofeffluentwerelessthan80mg·L-1and2mg·L-1respe