高效功能陶粒生物滤池处理农村生活污水研究

2009,28(9):1924-1931JournalofAgro-EnvironmentScience、,,,“”,。COD200mg·L-1NH3-N20mg·L-1TP4.0mg·L-1。。。HRT2.15~5.73h2.8~7.5m3·m-2·d-1NH3-N、TPCOD83.6%~98.3%、89.1%~99.7%84.4%~95.2%。X703.1A1672-2043(2009)09-1924-0811121.1008712.100054AHighEfficientMulti-FunctionCeramicBio-filterforTreatingRuralDomesticSewageTONGJing-jing1,JIGuo-dong1,ZHOUYou1,XIEChong-bao21.TheKeyLaboratoryofWaterandSedimentSciences,MinistryofEducation,DepartmentofEnvironmentalEngineering,PekingUniversi－tyBeijing100871,China2.ChinaIrrigationandDrainageDevelopmentCenter,Beijing100054,ChinaAbstractAhighefficientmulti-functionceramicbio-filterMFCBwasusedtotreatruraldomesticsewagewithconcentrationsofCOD200mg·L-1,NH3-N20mg·L-1,andTP4.0mg·L-1.TwokindsofMulti-FunctionCeramicMFCmadebyourexperimentconsistofflyashes,sawdust,ironores,andothersolidwastes.Theyweregranulatedandsinteredduringhightemperatures,andthenfilledintotheMFCBwithzeolitetogetherasthestyleof“brick-wall”.ThisMFCBwiththesortof“brick-wall”hasthreeadvantages,oneformakingwaterdistri－butionuniformityinthebio-filter,secondforincreasingthecontactingtimebetweendomesticsewageandMFC,andthelastforreducingwa－tercurrentshort-circuitandareasofdead-zoneinthebio-filter.Furthermore,theMFCBweredividedintoanupperaerobiczoneandaloweranaerobiczonebyaerationtubesinthemiddleofthebio-filtertoobtainadeepremovalofnitrogenandphosphorus.Ourresultsindicatethathighremovalefficiencieswereobtainedbythisbio-filter83.6%~98.3%forNH3-N,84.4%~95.2%forCOD,and89.1%~99.7%forTPwiththehydraulicretentiontimeHRTof2.15~5.73handthehydraulicloadingof2.8~7.5m3·m-2·d-1.Inaddition,italsohasthefollowingfouradvantages1easytoimmobilizebiofilmwitharoughenedsurface;2improvingpollutantremovalefficiencieswithhighBrunauer-Enmet-TellerBETof11.8902m2·g-1andthespecialstructuresofabundantmesoporesandmicropores;3highpHresistanceandme－chanicalstrength;4lessornoheavymetalsdissolution.Thus,comparedtootherbio-filters,thisMFCBcanapplywidelyintreatmentofruraldomesticsewagewithrelativelowconstructioncostandeasytooperationandmanagement.Keywordshigheffectivemulti-functionceramic;bio-filter;ruraldomesticsewage;nitrogenandphosphorusremoval2009－01－21“”2006BAD01B082008010481983—。[e-mail][e-mail]。。、、、“FILTER”[1-4]289、、[5-7]。、、。、、、、、、、、[8]、CODNH3-N80%70%[9-10][11]。、、、、[9-1012]。123。。11.1、8~10mm1050℃。。1。12“”1。100mm×80mm×1600mm9.6L700mm“”18~10mm2mm。LMIMILTONROYP+04-718N1。ACO-328。1.2、NH4Cl、KH2PO42。BIOSYSTEMB350[13]28、、30~50×108·g-1。3g·L-11Table1ThecompositionofMulti-FunctionCeramicMFC/180~200/≤325/180~200/20~40/180~200/≤400125%36%10%25%4%20%215%46%10%25%4%20%1Figure1Schematicdiagramofexperimentalapparatus80mm40mm1600mm20mm10mm80mm100mm01925200992Table2Thewaterqualityofsyntheticsewage/mg·L-1/mg·L-1CODC6H12O6-C200CaCl223NH+4-NNH4Cl20FeCl3·7H2O3PO3-4-PKH2PO44NaHCO312MgSO4·7H2O1004Table4TechnologicalparametersofMulti-FunctionCeramicMFC/mm/g·cm-3/%BET/m2·g-1/cm3·g-1/%18~101.41774411.89020.0055034.8628~101.5056446.56110.0264673.04。1.3pH6.5~7.58.0mg·L-120~25℃。COD∶N∶P=100∶5∶1COD400mg·L-1N20mg·L-1P4.0mg·L-1。3d3d4d。0.9m3·m-2·d-13d2.7m3·m-2·d-13dCOD40%。COD200mg·L-1NH3-N20mg·L-1TP4.0mg·L-15.73、4.3、3.44、2.87、2.15h3。1.4COD、NH3-N、TP[14]UV754N722SpH、DOHANNA201YSI550A。、、、[15]AnalytikJenaAG/。22.11、223。4。1222。/、、、、。2.2HRTCOD、HRTCOD45。CODHRT5.73h2.15h1COD93.9%86.6%7.3%2COD90.3%86.0%4.3%。1COD2.8m3·m-2·d-15.73h7.5m3·m-2·d-12.15h。123、Table3Influentflow,HRTandhydraulicload/d/L·d-1/h/m3·m-2·d-10~922.55.732.810~19304.303.7520~2937.53.444.6930~39452.875.6340~49602.157.519262892Figure2Multi-FunctionCeramicofscanningelectronmicroscopeSEMphotographsa1b1c2d2abcdCODCODCOD。7.5m3·m-2·d-1COD。2.3HRTNH3-N、HRTNH3-N67。NH3-N。HRT5.73h2.15h1NH3-N96.8%86.4%10.4%2NH3-N96.7%86.3%10.4%。2.8m3·m-2·d-17.5m3·m-2·d-1NH3-N。2.15hNH3-N86.3%-、-[9-10]NH3-N70%、69%。“”。1927200991928289。NH3-NNO-3N2NH3-N。DO4.3~6.8mg·L-1。2.4HRTTP、HRTTP89。TPHRT5.73h2.15h1TP99.7%90.9%8.8%2TP99.4%90.2%9.2%。2.8m3·m-2·d-17.5m3·m-2·d-1TP。TP。2.15hTP90.2%-、-[9-10]TP21.4%、22%。“”。。3、、、、、192920099、、、。HRT1COD、NH3-NTP212。“”。2.15~5.73hNH3-N、TPCOD83.6%~98.3%、89.1%~99.7%84.4%~95.2%--。。[1]ScanduraJE,SobseyMD.Viralandbacterialcontaminationofground－waterfromon-sitesewagetreatmentsystems[J].WaterScienceandTech－nology,1997,3511/12141-146.[2]JamesA,LagroJr.Designingwithoutnatureunseweredresidentialde－velopmentinruralWisconsin[J].LandscapeandUrbanPlanning,1996,351-9.[3]PellM,NybergF.InfiltrationofwastewaterinanewlystartedpilotsandfiltersystemI.Reductionoforganicmatterandphosphorus[J].JEnvi－ronQual,1989,18452-457.[4]OuazzaniN,BousselhajK,AbbasY.Reuseofwastewatertreatmentbyinfiltrationpercolation[J].WaterScienceandTechnology,1996,3310/11401-408.[5]SunTH,HeYW,OuZQ,etal.Treatmentofdomesticwastewaterbyanundergroundcapillaryseepagesystem[J].EcologicalEngineering,1998,11111-119.1930289[6],,.[J].,2000,16512-15.TIANNing-ning,YANGLi-ping,PENGYing-deng.Treatmentofdo－mesticwastewaterbysoilinfiltrationsystem[J].ChinaWater&Wastewa－ter,2000,16512-15.[7],,,.[J].,2002,23657-61.ZHANGJian,HUANGXia,LIUChao-xiang,etal.Pilotstudyonsub－surfacewaste