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:025322468(2002)20420459206:X70113:A1,2(11,510405;21):(BAF).,,,,.,BOD90%,NH32N80%,BOD610kg(BOD)P(m3d),BAF.CODBAF.:;;;ResearchonthehomemadelightgranularceramicsusedinBAFJIANGPing1,HUJiucheng2(11CivilandEnvironmentalEngineeringDepartment,GuangzhouUniversity,Guangzhou510405;212EnvironmentalandChemicalEngineeringInstitute,NanchangUniversity,Nanchang330029)Abstract:Thephysicalandchemicalpropertiesofhomemadelightgranularceramicsandtheeffectsofthedomesticseweragetreatmentbybio2logicalaeratedfilter(BAF)werestudied.Therewasagreatdealofsessilemicrobeonthesurfaceoftheceramics.Theceramicshavesomeadvantages:fastmembraneformation,longliveandgoodoxygen2chargingcapacity.Whentheceramicswereusedinthetreatmentofdomesticsewerage,theremovalofBOD,theremovalofNH32NandtheBODloadingwere90%,80%and610kg(BOD)P(m3d),respectively.TheceramicscanbeusedasmicrobialfilterofBAF.TherelationshipsbetweenremovalofCODandfilterheight,reactionkineticsandtechno2logicalconditionsofBAFwerealsodetermined.Keywords:lightgranularceramics;biologicalaeratedfilter;oxygen2chargingcapacity,kinetics:2001207206;:2001210201:(1976),,(BiologicalAeratedFilter,BAF)2080,,.SSCODBOD[17].BAF,BAF[8],.BAF.1(BODNP=10051),CNN.90mm,1m,21153L3106L,113m,,().[9],COD(COD70%),(202510d).,CODNH32N.[10],(HRT)(GPL),HRTGPL22420027ACTASCIENTIAECIRCUMSTANTIAEVol.22,No.4Jul.,20023d.,,,,12d.:CODCr(GB11914289);BOD5GB7488287;NH32N(GB7479287);DO(GB7489287),(SJG2203).221121111,(),,.,,BAF(1).1BAFTable1ThepropertiesoflightgranularceramicsandtheoverseasfillersinBAF,mm,gPcm3,gPcm3,%,%,m2Pgm2Pm3,%,%Ahita()3156121155018801050133198515114OldES()2113191190108013401836150135361167017901090144111834131012221112(SEM)BAF,13.1,,,.2,,1,.3.1(1000)Fig.1Thesectionoftheceramics(1000)2(500)Fig.2Thesectionoftheceramicswithgrownmicrobe(500)3(3000)Fig.3Thesectionoftheceramicswithgrownmicrobe(3000),,,BAF.21206422BAF,,4DOtFig4RelationshipbetweenDOandtunderdifferentairflowrates.,.,,(DO),,0151minDO,DO[10].,4.dcPdt=KLa(Cs-C)(1),dcPdt,mgP(Lh);KLa,h-1;CCs,;Cs,mgPL;Ct,mgPL.2Table2KLafortheemptyreactorandtheBAF,LPh1005025KLa(),h-118126131178145KLa(),h-1471512511017118KLa()/KLa()216119210(1):C0dCCs-C=KLat0dt(2)lnCsCs-C=KLat(3)lnCsCs-C=KLatt,KLa,KLa(2).,,,.,,,,,;,,,,,KLaDO,.,KLa,:,,,,;,,;,,,.,(BAF),,,.2133,CODCN,CN(H2)COD70%,NH32N20%,NNH32N80%,NH32NN.BAF:CN,N.1644:3Table3Influenceofthefillerhighnessoneffectofthetreatment,mCNN0137(H1)01635(H2)0199(H3)11255(H4)COD,mgPL2331112118681923131519COD,%47170701409010093120NH32N,mgPL2411211318173121044179NH32N,%11163221205010080100,,(),:dSPdH=-KS(4)SPS0=e-KH(5),K,K=KSm0(QPA)n(6)SPS0=e-KSm0QAnH(7),dSPdH,mgP(Lm);S0,mgPL;S,mgPL;H,m;Q,m3Pd;A,m2;K;m;n.:H=ln(S0PS)PKSm0(QPA)n(8)ln(SPS0)=-KSm0(QPA)nH(9)(9),(6)n=-011374,m=-011352,K=101233,(6),K=101233S-0113520(QPA)-011374(10),COD:H=[lnS0PS]P[101233S-0113520(QPA)-011374](11)(10),BAF,,BAF.(11).,,,,,3.2144(GPL=5)Table4InfluenceofHRTontheeffectoftreatmentHRT,min,m3P(m2h)COD,mgPLCOD,mgPLCOD,%CODPBOD,kgP(m3d)3159143122816101104551860105P57.31414715452181085102611050103P46.45612513442111674148641836159P33.32814319301911455131711126169P23.6015.0212012551022170911125136P21.6621.0115722551213153941718177P15.9728.0111792501013150941613191P11.7242.001786250101017595179139P7.884,42min21min,,;315min,,,COD55%.,1521min,(116212m3P(m2h)).264225CODBODFig.5InfluenceoftheratioofgastoliquidontheCODremovierateandBODloading215116m3P(m2h),COD380480mgPL(BOD248314mgPL),(GPL)CODBOD,5.,GPL,COD;GPL8,;GPL10,COD,.,,5P110P1.216Monod[11]:U=(UmaxSe)P(Ks+Se)(12),U,gP(m2d),:U=Q(S0-Se)Na,Q,m3Pd;S0mgPL;Se,mgPL;Umax,gP(m2d);Ks,U=UmaxP2,mgPL;N:,m3;a:,m2Pm3.BOD5500mgPL,SenKs,K=UmaxPKs,(12):U=KSe(13).5.5BOD5Table5Resultsofkineticsexperimentanddataprocessing,m3PdS0,mgPLSe,mgPLQ(S0-Se),gPd,m2U,gP(m2d)1PU,(m2d)Pg1PSeLPmgLv,kg(BOD)P(m3d),%101180801995167131562155351310118830117644143931020124082143716117196215537103011422011314518790183012401831131916439124215531513701065101050912182891340133620712025134611102155323193010417010395191978718501576180130421537913621553311080103220102352519376146017201661643916491144215533518201027901025229188761261PU1PSeFig.6Relationshipbetween1PUand1P(S02Se)(12),:1PU=KsPUmax1PSe+1PUmax(14)1PU1PSe,KsPUmax,1PUmax,6.,Umax=18512gP(m2d),Lvmax=Umaxa=1851283413=15415kg(BOD)P(m3d),KsPUmax=11041,Ks=11041,Umax=192178mgPL1,BAF(BOD):U=Umax(Se-Sn)Ks+(Se-Sn)=18512(Se-Sn)192178+(Se-Sn)(gP(m2d))BOD90%,BOD10mgPL3644:,BOD610kg(BOD)P(m3d),1315kg(BOD)P(m3d).311,,,,,,(),,,.21BAF,2.31BAF,116m3P(m2h),51,COD85%,BOD90%,NH32N80%,610kg(BOD)P(m3d).:[1]PujolR,etal.Akeypointofnitrificationinanupflowbiofiltrationreaction[J].WatSciTech,1998,38(3):4349[2]FrankRogalla,etal.Newdevelopmentincompletenitrogenremovalwithbiologicalaeratedfilters[J].WatSciTech,1990,22(1P2):273280[3]SeguretF,etal.Hydrodynamicbehaviorofafull2scalesubmergedbiofilteranditspossibleinfluenceonperformances[J].WatSciTech,1998,38(89):249256[4]ChudobaP,etal.Athree2stagebioformancesofapilotplant[J].WatSciTech,1998,38(89):257265[5]DillonGR,etal.Apilot2scaleevaluationofthebiocarboneprocessforthetreatmentofsettledsewageandf