沸石滤料曝气生物滤池处理水产养殖废水的工艺特性蒋轶锋

31320103　　　　　　ENVIRONMENTALSCIENCEVol.31,No.3Mar.,20101,2,1,1(1.,　310032;2.,　310051):(ZBAF).,,7d25d;0.25m/h20∶1,CODNH+4-N85%70%.ZBAF、,,DO;(-P)(),,114.12nmol/g0.67mg/(g·h).:;;;;:X703.1　:A　:0250-3301(2010)03-0703-06:2009-05-13;:2009-09-28:(2008ZX07421-002,2008ZX07101-006-07,2008ZX07106-2-2);(2007BZE58B07);(2007C13081);(20062912A06);(20080210):(1978～),,,,,E-mail:[e-mail]ofZeoliteMediaBiologicalAeratedFilterforTreatingAquacultureWastewaterJIANGYi-feng1,LIUDa-hua2,SUNTong-xi1,CHENJian-meng1(1.CollegeofBiologicalandEnvironmentalEngineering,ZhejiangUniversityofTechnology,Hangzhou310032,China;2.ZhejiangFeidaDesulfurizationEngineeringCo.Ltd.,Hangzhou310051,China)Abstract:Inthisstudy,anup-flowzeolitemediabiologicalaeratedfilter(ZBAF)wasdevelopedandemployedforthetreatmentofaquaculturewastewater.TheresultsshowedthatZBAFcouldstartupquicklyafter7dand25dinviewpointofmineralizationandnitrification.0.25m/hand20∶1werefoundtobetheoptimalhydraulicloadingandgas/waterratio,underwhicharound85%ofCODand70%ofNH+4-NwereremovedstablyintheZBAF.Throughanalysisofwaterqualityandmicroorganismalongtheflowdirection,theheterotrophicandnitrifyingpopulationoccupiedrespectivelyinthebottomandtopofthefiltercolumn,andlowerDOconcentrationwasregardedastheboundaryzoneforthesetwodifferentgroupsofchemotrophicbacteria.Thechangingprofilesofbiomass(phospholipid-P)andactivity(oxygenuptakerate)showedthesimilarmodealongtheheightofZBAF,andtheirmaximumvaluesof114.12nmol/gand0.67mg/(g·h)weredetectedatthebottomofthefilter.Keywords:biologicalaeratedfilter;aquaculturewastewater;zeolitemedia;processcharacteristics;start-up　　,,,.,[1,2].COD、NH+4-N,(ZBAF).、,NH+4-N[3～6],BAF,,1/4～1/6,[6～9].ZBAF、,、,CODNH+4-N,ZBAF.1　1.1　1,ZBAF,150050mm;,,;,1350mm,50mm10～15mm,3～8mm;(20mm,),300mm,0()1、2、3、4(),DOI:10.13227/j.hjkx.2010.03.021　　　　　　31.1.　2.　3.　4.5.　6.　7.　8.(ZBAF)1　Fig.1　FlowdiagramoftheZBAF1.2　,,,1.1.3　ZBAF(DO≥4mg/L),0.10m3/(m2·h);,、;35d,,ZBAF.2.ZBAFSS,-+-:10min,8L/(m2·s);5min,53L/(m2·s);10min,3L/(m2·s).1.4　1.4.1　COD、NH+4-N、TNTP[10],pHDOWTWpH-330iOXi-330i.1　Table1　InfluentwaterqualityCOD/mg·L-1NH+4-N/mg·L-1TN/mg·L-1TP/mg·L-1SS/mg·L-1pH280～36031.2～43.735.3～55.42.3～4.726～786.0～8.632540.251.03.1547.62　Table2　OperationalparametersfortheZBAF/m·h-10.100.10,0.25,0.40,0.6030∶130∶15∶1,10∶1,20∶1,30∶1,40∶1/d422828351.4.2　(),(-P)(OUR).-P(P,nmol/g)[11],100mL;OUR[mg/(g·h)](O2),BOD,[12].2　2.1　ZBAFZBAF.,VSS/SS0.8;2L,3d;3d.COD2.,ZBAF,,ZBAF[13].COD,7dCOD80%,80%～95%,,7043:　　　2　ZBAFCODFig.2　CODremovalduringtheperiodofZBAFstart-up.1(3)7d.NH+4-N4.15d,NH+4-N90%,17d51%,,25d,65%～75%.NH+4-N.15d,,NH+4-N、;17d,NH+4-N,　　　3　Fig.3　ComparisonofSEMimagesbeforeandaftertheformationofthebiofilm4　NH+4-NFig.4　AmmoniaremovalduringtheperiodofZBAFstart-upNH+4-NNOx--N(NO-2-N+NO-3-N),4,17～25d,NOx--N6.0mg/L20.0mg/L,20.0mg/L,.,25d,.NH+4-N[3～5,13],NH+4-N,BAF.2.2　ZBAF2.2.1　,ZBAF,(DO≥4mg/L),4CODNH+4-N,5.0.10m/h0.25m/h,CODNH+4-N4.4%5.0%;0.40m/h0.60m/h,COD,NH+4-NNOx--N.,,;,,[14],;,ZBAFCODNH+4-N,、,,DO、NH+4-N705　　　　　　31,NH+4-N[15,16].5,0.40m/h,NH+4-NNO-x-N,,CODNH+4-N,,0.25m/h.5　CODNH+4-NFig.5　RemovalsofCODandammoniaunderdifferenthydraulicloads2.2.2　0.25m/h,(5∶1～40∶1).6,,10∶1,CODNH+4-N90%70%.,,,,,[17～19].,,;NO-x-N20∶1,[20,21].(40∶1),COD,.20∶1,.2.3　ZBAF7COD、NH+4-N、DONO-x-N.0～1,60%COD、NH+4-N16%;3～4,COD4.5%,NH+4-N36%(50%);2DO;NO-x-N,6　CODNH+4-NFig.6　RemovalratesofCODandammonianitrogenunderdifferentconditionsofgas-waterratio7　COD、NH+4-N、DONO-x-NFig.7　ChangesofCOD,NH+4-N,DOandNO-x-NconcentrationsalongZBAFcolumn,3～4NO-x-N50%.BAFZBAF.0～1,,COD,DO,,NO-x-N,NH+4-N;DO,3～4,,NH+4-N,NO-x-N50%.1～3,CODNH+4-N,2DO,[22].7063:ZBAF,8,、1,114.12nmol/g、0.67mg/(g·h)5.86×10-3mg/(nmol·h).(4).8　Fig.8　Changesofbiomassandbiologicalactivityalongmedia,,1,,,,.,,COD.,、(NH+4-N),[22,23],[24,25].[26],8,0～3,、,3～4,.,,,[11,17,18].3～4,,,NH+4-N.3　(1)、NH+4-N,ZBAF;,7d25d;0.25m/h,20∶1,CODNH+4-N80%～95%65%～75%.(2),;2,,DO,,.(3),、1(300mm),114.12nmol/g、0.67mg/(g·h)5.86×10-3mg/(nmol·h);,,,.:[1]　MelzerA.Aquaticmacrophytesastoolsforlakemanagement[J].Hydrobiologia,1999,395:181-190.[2]　BoopathyR,BonvillainC,FontenotQ,etal.Biologicaltreatmentoflow-salinityshrimpaquaculturewastewaterusingsequencingbatchreactor[J].InterBiodeteriorationBiodegradation,2007,59(1):16-19.[3]　,,.[J].,2008,28(8):1618-1624.[4]　,,,.[J].,2008,24(23):85-88.[5]　,,,.HCl[J].,2007,28(3):551-555.[6]　OldenburgM,SekoulovI.Multipurposefilterswithion-exchangerfortheequalizationofammoniapeaks[J].WaterSciTechnol,1995,32(7):199-206.[7]　BaykalBB.Clinoptiloliteandmultipurposefiltersforupgradingeffluentammoniaqualityunderpeakload[J].WaterSciTechnol,1998,37(9):235-242.[8]　,,.CODNH+4-N[J].,2002,18(12):13-15.[9]　PakD,ChangW,HongS.Useofnaturalzeolitetoenhancenitrificationinbiofilter[J].EnvironEngin,2002,23(7):791-798.[10]　.[M].().:,2002.[11]　,,.[J].,2002,28(5):1-5.[12]　UrferD,HuckPM.Measurementofbiomassactivityindrinkingwaterbiofiltersusingarespirometricmethod[J].WaterRes,2001,35(6):1469-1477.[13]　,,.[J].,2002,3(12):38-42.[14]　,,.707　　　　　　31[J].,2004,26(6):433-436.[15]　WangHD,PengYZ,WangSY,etal.Enhancednut