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10 2 20046JournalofTianjinInstituteofUrbanConstruction Vol.10 No.2 Jun.2004池勇志,李 毓,吴丽萍(,300384) :通过将修正后的基质动力学参数引入前置反硝化生物脱氮工艺设计,重点介绍了利用污泥龄作为设计前置反硝化生物脱氮工艺脱氮反应器容积的设计方法.此外,还介绍了前置反硝化生物脱氮工艺系统剩余污泥量、系统需氧量和系统碱度校核的计算公式. :;;;;:X799.3031 :A :1006-6853(2004)02-0122-03 ,《》(GBJ14-87)(97),[1].,.,..1 12.1 20℃[2]μmd-10.30~3.000.80KsmgNH4-N/L0.20~0.500.40YmgMLVSS/(mgNH4-N·d)0.10~0.300.20Kdd-10.03~0.060.052 20℃[2]μmd-10.30~0.900.30KsmgNO3-N/L0.06~0.200.10YmgMLVSS/(mgNO3-N·d)0.20~0.400.30Kdd-10.04~0.080.062 (1)μ′m μ′m=0.8·exp[0.098(t-20)]·DOKO2+DO·[1-0.833(7.2-pH)](1):μ′m、DOpH,d-1;t,℃;DO,mg/L;KO2,KO2=1.3mg/L;pHpH,7.2. (2)qmax qmax=μ′mY(2):qmax,mgNH4-N/(mgMLVSS·d);Y、:2003-12-15 :(1971-),,,,.1. (3)θmcNθdcN ①θmcN θmcN=Yqmax-Kd(3):θmcN,d;. ②θdcN θdcN=SFθmcN(4):θdcN,d;SF,,1.5~2.5;θmcN,d. (4)q q=1θdcN+Kd1Y(5):q,mgNH4-N/(mgMLVSS·d);. (5)TKNN1 N1=qKsqmax-q(6):N1TKN,mg/L;Ks,mg/L,1,Ks=100.051t-1.158;. (6)t1 t1=No-N1qXN(7):t1,d;NoTKN,mg/L;XN,mg/L, XN=(0.08~0.10)Xv(8):Xv,mgMLVSS/L;. (7)V1 V1=t1·Q(9):V1,m3;Q,m3/d;.3 (1)20℃qD20.20℃qD203.3 qD20[3]qD20/mgNO3-N·(mgMLVSS·d)-1/℃qD20/mgNO3-N·(mgMLVSS·d)-1/℃0.030~0.11025~270.754250.289200.530200.349250.575250.603250.386200.362250.08425 qD20=0.3FM+0.029(10):qD2020℃,mgNO3-N/(mgMLVSS·d);FM,mgBOD5/(mgMLVSS·d),0.2~0.4. (10). (2)qDT qDT=qD20θ(t-20)(11):qDTt℃,mgNO3-N/(mgMLVSS·d);qD2020℃,mgNO3-N/(mgMLVSS·d);t,℃;θ,θ=1.09. (3)t2 t2=ND-N2qDNXDN(12):t2,d;NDNO3-N,mg/L;N2NO3-N,mg/L;qDTt℃,mgNO3-N/(mgMLVSS·d);XDN,mgMLVSS/L. (4)V2 V2=t2·Q(13):V2,m3;. (5)θdcD θdcD=θdcN·V2/V1(14):θdcD,d;.4 θdc θdc=θdcN+θdcD(15)·123· :5 ΔX ΔX=(V1+V2)Xv1000·θdc(16):ΔX,kgMLVSS/d;.6 O2 O2=aQ(So-Se)+b[Q(TNo-N1)-0.124×1000ΔX]-1000cΔX-2.86[Q(TNo-N1-N2)-0.124×1000ΔX](17):O2,g/d;a、b、cBOD、NH4-N,1,4.571.42;So、Se、BOD,mg/L;Q,m3/d;0.124;2.86;TNo,mg/L;N1TKN,mg/L;N2,mg/L;ΔX,kgMLVSS/d.7 ,pH6.5,50mg/L. ALKW+ALKC+ALKDNALKN+ALKE(18):ALKW,mg/L,CaCO3;ALKCBOD5,mg/L,CaCO3,ALKC=k(So-Se),kBOD5,mg(CaCO3)/mgBOD5,,4;ALKDN,mg/L,CaCO3,ALKDN=3.57×(ND-N2);ALKN,mg/L,CaCO3,ALKN=7.14×(No-N1);ALKE,=50mg/L,CaCO3;. (18),(18).4 θdck[4]θdc/dk/(mg(CaCO3)/mgBOD5)200.1010~200.05100.01:[1] , ,,.[J].,2001,5(17):46-49.[2] .———[M].:,2002.[3] ,.[M].:,1998.[4] .[M].:,1997.KineticsdesignontechnologyofbiologicalpredenitrificationfrommunicipalwastewaterCHIYong-zhi,LIYu,WULi-ping(DepartmentofMunicipalandEnvironmentalEngineering,TIUC,Tianjin300384,China)Abstract:Byintroducingrevisedsubstratekineticsparametersintothedesignontechnologyofbiologicalpredenitrification,themethodwhichusedsolidretentiontimetodesignthereactorvolumesandthecalculationformulasforsystemsludgeexcessamount,systemoxygendemandandsystemalkalinitycheckofthetechnologyareintroduced.Keywords:municipalwastewater;technologyofbiologicalpredenitrification;biologicaldenitrification;kineticsprarameters;re-actordesign·124· 2004 10 2
本文标题:城市污水前置反硝化生物脱氮工艺的动力学计算池勇志
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