短程硝化反硝化技术经济特性分析张小玲

34　320029西安建筑科技大学学报()J.Xi’anUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.34　No.3Sep.2002—张小玲,彭党聪,王志盈(,710055)　:,、、—.—、,.:短程硝化-反硝化;曝气量;外加碳源量;反应器容积:X703　　　　:A　　　　:1006-7930(2002)03-0239-04　AnalysisontheeconomiccharacteristicsofShortcutNitrificationandDenitrificationZHANGXiao-ling,PENGDang-cong,WANGZhi-ying(SchoolofEnvir.&Muni.Eng.,Xi'anUniv.ofArch.&Tech.,Xi'an710055,China)Abstract:Basedontheexperiment,thispaperdiscussedtheadvantagesofshortcutnitrificationanddenitrificationfromaerationamount,organicmaterialandvolumeofreactorandtheotherrespect.Theresultsshowedthatshortcutnitrifi-cationanddenitrificationisanefficienanandeconomicalprocess,whichisvaluabletotraditionalbiologicalnitrogenre-moval.Keywords:shortcutnitrificationanddenitrification;aerationamount;carbonsourceamount;volumeofreactor、,,(59878042),[1、2],—.NH4+→NO2→N2—,,,,.(SBR、A/O、A2/O),,—.1　分析与讨论1.1　、.BOD5150mg/l,:2002-05-12:(59878042).:(1976-),,,,.DOI:10.15986/j.1006-7930.2002.03.00990%,BOD5:150×90%=135mg/l.1mgBOD51.0～1.5mg,1.5mg;NH4+—N300mg/l,90%.,1mgNH4+—NNO2-—N3.43mg,NO3-—N4.57mg;.0.58L/h,:(1):RO1=(1.5×135+3.43×300×90%)×0.58=654.6mg/h(2):RO2=(1.5×135+4.57×300×90%)×0.58=833.1mg/hRO2-RO1RO2=833.1-654.6833.1×100%=21.4%20%.1.2　(Gs).,(N0).GsN0(EA),.,,6.2%～7.1%.[3]:N0=RO·Csm(20)T·(Csw(θ)-C)·1.024(θ-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)=9.2mg/L.30℃,30℃Cs(30)=7.6mg/L,,T1,U0.9[2],Csw(30)=UdCs(30)=0.9×1×7.6=6.84mg/L.,2～3mg/L,;,0.5～1.0mg/L,(80%)[3].C1=1.0mg/L(),RO1=654.6mg/h,C2=2.0mg/L(),RO2=833.1mg/h(1),:(1):N01=654.6×0.975×9.21×(6.84-1)×1.024(30-20)=793.2mg/h(2):N02=833.1×0.975×9.21×(6.84-2)×1.024(30-20)=1218.0mg/hN02-N01N02=12180-793.212180×100%=34.9%20%,,[4,5]().,(DO=1.0mg/L)(2.0mg/L)34.9%.1.3　,.,:3CH3COONa+8NO2-+H2O→4N2+6CO2+3NaOH+8OH-(4)5CH3COONa+8NO3-→4N2+10CO2+5NaOH+8OH-+H2O(5)(4)、(5),1gNO3-—N3.66g、1gNO2-—N2.20g,NO2-NO3-40%.,240　　　　　　　　　　　　　　　()　　　　　　　　34NO2-NO3-,,..碳氮比对反硝化的影响:,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:C/N8.13,NO3-—NC/N8.73.NOx-—N(50mg/L),NO2-—NNO3-—N:X2-X1X2=8.73-8.138.73×100%=6.9%(6)、(7)./%60708090C/NX1X20.133.972.805.565.477.148.138.73/%96.749.623.46.9,,NO2-—NNO3-—N.,C/N3:1,70.8%,53.9%.1.4　,.0.64kgNH4+—N/kgMLSS·d:0.59kgNO2-—N/kgMLSS·d:,0.79kgN/kgMLSS·d:0.53kgN/kgMLSS·d.—,.——,,.V1·R1=V2·R2.::V2-V1V2=R1-R2R2×100%=0.65-0.590.64×100%=7.8%;V2-V1V2=R1-R2R2×100%=0.79-0.530.79×100%=32.9%V—,R—,1—,2—.1.5　0.04～0.13gVSS/gN,0.02～0.07gVSS/gN,0.345gVSS/gN0.765gVSS/gN,24～33%,50%[5].75%,48.5%.—,50%.2　结　论(1)(1.0mg/L)(2.0mg/L)34.2413:—9%;(2),NO2-—NNO3-—N,,;(3)——,,7.8%,32.9%;(4)—,50%;(5)—、、,,—.:[1]　,,,.[J].,2000,20(3):207-210.[2]　.[M].:,1992.[3]　,,,.[J].,2000,32(1):4-7.[4]　PengDangCong,NicolasBernet,Jean-PhillipeDelgenesandReneMolettaSimultaneousorganiccarbonandni-trogenremovalinanSBRcontrolledatlowdissolvedoxygenconcentration[J].JournalofChemicalTechnologyandBiotechnology,2001(12):553-558.[5]　VOETJP,etal.Removalofnitrogenfromhighlynitrogenouswastewater[J].JWPCF,1975,47:394-398.(上接第231页),,,.5.5　WHW-BSWHW-CBSDOHW-BSDOHW-CBS305.7310.1284.0300.0355.5415.0327.5385.0,,15%,,..,30%,.,.,.3　结　　论①、,,,.②,,.,,.③,,.④.,,(),、,.:[1]　.[J].,2002,34(2):133-136[2]　.[D].:,2001.[3]　.[D].:,2001.[4]　GB50010-2002.[S].242　　　　　　　　　　　　　　　()　　　　　　　　34