搜索
34320029()J1XianUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.34No.3Sep.2002,,(,710055):,.,.:-;;;:X703:A:100627930(2002)0320239204XAnalysisontheeconomiccharacteristicsofShortcutNitrificationandDenitrificationZHANGXiao2ling,PENGDang2cong,WANGZhi2ying(SchoolofEnvir.&Muni.Eng.,Xi’anUniv.ofArch.&Tech.,Xi’an710055,China)Abstract:Basedontheexperiment,thispaperdiscussedtheadvantagesofshortcutnitrificationanddenitrificationfromaerationamount,organicmaterialandvolumeofreactorandtheotherrespect.Theresultsshowedthatshortcutnitrifi2cationanddenitrificationisanefficienanandeconomicalprocess,whichisvaluabletotraditionalbiologicalnitrogenre2moval.Keywords:shortcutnitrificationanddenitrification;aerationamount;carbonsourceamount;volumeofreactor,,(59878042),[12],.NH4+NO2N2,,,,.(SBRAöOA2öO),,.11.1.BOD5150mgöl,X:2002205212:(59878042).:(19762),,,,.90%,BOD5:15090%=135mgöl.1mgBOD51.01.5mg,1.5mg;NH4+N300mgöl,90%.,1mgNH4+NNO2-N3.43mg,NO3-N4.57mg;.0.58Löh,:(1):RO1=(1.5135+3.4330090%)0.58=654.6mgöh(2):RO2=(1.5135+4.5730090%)0.58=833.1mgöhRO2-RO1RO2=83311-6541683311100%=2114%20%.1.2(Gs).,(N0).GsN0(EA),.,,6.2%7.1%.[3]:N0=ROCsm(20)A(Csw(H)-C)11024(H-20)(1)Csm(20)=Cs2(pb0.1013+Qt21)(2)Qt=21(1-EA)79+21(1-EA)(3)EA6.2%,(3)::Qt=19.958,(2),:Csm(20)=0.975Cs(20),20,:Cs(20)=9.2mgöL.30,30Cs(30)=7.6mgöL,,A1,B0.9[2],Csw(30)=BQCs(30)=0.917.6=6.84mgöL.,23mgöL,;,0.51.0mgöL,(80%)[3].C1=1.0mgöL(),RO1=654.6mgöh,C2=2.0mgöL(),RO2=833.1mgöh(1),:(1):N01=654.6019759121(6184-1)11024(30-20)=793.2mgöh(2):N02=83311019759121(6184-2)11024(30-20)=1218.0mgöhN02-N01N02=12180-7931212180100%=3419%20%,,[4,5]().,(DO=1.0mgöL)(2.0mgöL)34.9%.1.3,.,:3CH3COONa+8NO2-+H2O4N2+6CO2+3NaOH+8OH-(4)5CH3COONa+8NO3-4N2+10CO2+5NaOH+8OH-+H2O(5)(4)(5),1gNO3-N3.66g1gNO2-N2.20g,NO2-NO3-40%.,042()34NO2-NO3-,,..:,NO2-NNO3-N,,.NO2-N,,.(Y)(X):Y1=3.75x1+59.5(R=0.9768)(6)Y2=6.3x2+35(R=0.9955)(7)90%,Y1=Y2=90:CöN8.13,NO3-NCöN8.73.NOx-N(50mgöL),NO2-NNO3-N:X2-X1X2=8.73-8.138.73100%=619%(6)(7).ö%60708090CöNX1X20.133.972.805.565.477.148.138.73ö%96.749.623.46.9,,NO2-NNO3-N.,CöN3:1,70.8%,53.9%.1.4,.0.64kgNH4+NökgMLSSd:0.59kgNO2-NökgMLSSd:,0.79kgNökgMLSSd:0.53kgNökgMLSSd.,.,,.V1R1=V2R2.::V2-V1V2=R1-R2R2100à=0.65-0.590.64100%=7.8%;V2-V1V2=R1-R2R2100à=0.79-0.530.79100%=32.9%V,R,1,2.1.50.040.13gVSSögN,0.020.07gVSSögN,0.345gVSSögN0.765gVSSögN,2433%,50%[5].75%,48.5%.,50%.2(1)(1.0mgöL)(2.0mgöL)34.1423:9%;(2),NO2-NNO3-N,,;(3),,7.8%,32.9%;(4),50%;(5),,.:[1],,,.[J].,2000,20(3):2072210.[2].[M].:,1992.[3],,,.[J].,2000,32(1):427.[4]PengDangCong,NicolasBernet,Jean-PhillipeDelgenesandReneMolettaSimultaneousorganiccarbonandni2trogenremovalinanSBRcontrolledatlowdissolvedoxygenconcentration[J].JournalofChemicalTechnologyandBiotechnology,2001(12):5532558.[5]VOETJP,etal.Removalofnitrogenfromhighlynitrogenouswastewater[J].JWPCF,1975,47:3942398.(231),,,.5.5WHW-BSWHW-CBSDOHW-BSDOHW-CBS305.7310.1284.0300.0355.5415.0327.5385.0,,15%,,..,30%,.,.,.3,,,.,,.,,.,,..,,(),,.:[1].[J].,2002,34(2):1332136[2].[D].:,2001.[3].[D].:,2001.[4]GB50010-2002.[S].242()34