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当前位置：首页 > 商业/管理/HR > 质量控制/管理 > 城市污水生物除磷脱氮系统剩余污泥量的计算许劲
:1006-7329(2003)05-0069-06许 劲1, 罗 平2, 孙俊贻3(1. , 400045;2. , 400044;3. , 400045):剩余污泥量的计算是活性污泥法工艺设计的关键,而活性污泥法是同时生物除磷脱氮的主体工艺形式,因此,准确计算生物除磷脱氮系统的剩余污泥量十分必要。结合昆明市污水处理厂的运行实际,分析比较了传统计算法、污泥龄法和数学模型法在计算城市污水生物除磷脱氮系统剩余污泥量时的准确性,建议现阶段采用污泥龄法进行计算,提出修正系数K(0.75～1)与具体工艺形式有关,并给出K的几个建议值,同时指出数学模型法(ASM2)应是发展方向。:城市污水;生物除磷脱氮;剩余污泥量;污泥龄法;数学模型法;产率系数;修正系数K:X703文献标识码:ASurplusSludgeVolumeCalculationofBiologicalPhosphorusandNitrogenRemovalProcessforMunicipalWastewaterXUJing1,LUOPing2,SUNJun-yi3(1.CollegeofUrbanConstructionandEnvironmentalEngineering,ChongqingUniversity,Chongqing400045,P.R.China;2.CollegeofChemistryandChemicalEngineering,ChongqingUniversity,Chongqing400045,P.R.China;3.CollegeofCivilEngi-neering,ChongqingUniversity,Chongqing400045,P.R.China)Abstract:Sincethekeytothedesignofactivatedsludgeprocessissurplussludgevolumecalculation,whileactivatedsludgesystemsaremainformsinbiologicalPandNremovalprocess(BPNRP),itisnecessarytocalculateexcesssludgeproductionofBPNRP.CombinedwiththeoperatingexperienceofwastewatertreatmentplantsinKunming,thispaperanalyzesandcomparestheprecisionoftraditionalcalculatingmethod,sludgeretentiontimemethodandmathematicalmodelsinsurplussludgevolumecalculationofBPNRPformunicipalwastewater.Then,itsuggeststhatthesludgeagemethodissuitableatpresentandpointsoutthatadjustedco-efficientK(0.75～1)isrelatedtospecificprocessandseveralvaluesofKaregiven.Atthesametime,ital-sopointsoutthatactivatedsludgemathematicalmodelASM2istheorientationofdevelopment.Keywords:municipalwastewater;biologicalphosphorusandnitrogenremovalprocess;surplussludgevol-ume;sludgeretentiontimemethod;mathematicalmodelmethod;sludgeyieldindex;adjustedcoefficientK、,、、,,A/O、A2/O、Barden-pho、UCT、VIP、SBR。《第25卷 第5期2003年10月 重庆建筑大学学报JournalofChongqingJianzhuUniversity Vol.25 No.5Oct.2003:2003-07-03: (1968-),,,,。》(GB8978-1996),,,,。,,[1],,,。,。:、。,、。ASM2,,,[2],,,。,、,,、,。,,,,。1 1.1 ,,。,,、、,,,,,[3,4]。:ΔX=Y(Sa-Se)Q-KdVXv:ΔX———(VSS),kg/d;(Sa-Se)Q———,kg/d;VXv———kg,Xv=MLVSS,V,m3;Y———,1kgBODMLVSSkg;Kd———(),d-1。,θc,ΔX0,,。1.2 ,。,,,,,。,,,ATV。ATV[5]:1)():YH·Q·BOD5,i()-bH·X·MLSS·V·fT,H()70 25 2)(10%):0.1·bH·X·MLSS·V·fT,H。3),60%:0.6·Q·SS。,:SP=YH·Q·BOD5,i-bH·X·MLSS·V·fT,H+0.1·bH·X·MLSS·V·fT,H+0.6·Q·SS:X=(YH·Q·BOD5,i-bH·X·MLSS·V·fT,H)/SP。SP=MLSS·V/θC,SP:SP=YH·Q·BOD5,i+0.6·Q·SS-0.9·bH·YH·Q·BOD5,i·fT,H/(θ-1C+bH·fT,H) 1kgBOD5SPt:SPt=YH+0.6·SSBOD5,i-0.9·bH·YH·θc·fT,H1+bH·YH·θc·fT,H:Q,m3/d;X;V,m3;θC,d;YH,kgSS/kgBOD5,YH=0.6;bH,bH=0.08L/d;fT,H,fT,H=1.072(T-15)(T,℃);SS,kg/m3;BOD5,iBOD5,kg/m3;BOD5,eBOD5,kg/m3。YH=0.6、bH=0.08L/d,:SPt=0.6·(SSBOD5,i+1)-0.072·0.6·θc·fT,H1+0.08·θc·fT,H Y,,SS/BOD5、、。,,1K(K):Y=K·0.6·(SSBOD5,i+1)-0.072·0.6·θc·fT,H1+0.08·θc·fT,H ,SP=Y·Q·(BOD5,i-BOD5,e) (kgSS/d)1.3 IAWQ19952(ASM2),、、,、。,ASM2,19、19、2242,,;ASM113、19,8,,,,,,8.5%～13%[3]。,ASM1。ASM1,[3,4]:1)VSS,XI=TSS(1-fv+fvfnv) (kgSS/d);2),(XB,H),XB,H=BOD5YH/(1+θcbH) (kgVSS/d);,(,XB,A)XB,A=TKNYA/(1+θcbA) (kgVSS/d);3)XP=fPbHθcXB,H (kgVSS/d);,XT=XI+XB,H+XB,A+XP (kgVSS/d)。715 ,: XEF (kgVSS/d),4)Xw=XT-XEF (kgVSS/d)。 :fvSS,0.7;fnvVSS,0.3;YH,0.65kgVSS/kgBOD5;YA,0.1kgVSS/kgNH3-N;bH,0.15d-1(15℃);bA,0.035d-1(15℃);fP,0.2。2 ,,A2/O,。(60%),36.5t,,80%。3～5,10,,。、(ICEAS),,、。1。,,,2(),1～3。1 (mg/L)BOD5CODcrSSTNTP180360200308153010100.5～160～80100～200200304～8101510150.52 (mg/L)BOD5CODcrSSTNTP190.41518.6416.441.376.523.5719.63.316.770.28※※※1※2※※※(Carrousel) (Carrousel)1 ※※※ ※※ ()2 ※※ICEAS※ (、、、)3 ,,[4]。(Yobs=0.65kgSS/kgBOD5)9.26t/d,,72 25,,(),,80%15～20,5t,15～20t。,,BOD5=150mg/L、SS=250mg/LBOD5=10mg/L、SS=15mg/L,、、5.5×104m3/d、10×104m3/d、10×104m3/d,15℃。,VSS/SS0.75,,,,,,,VSS/SS,,VSS/SS0.7。,BOD5,。、,,、(θC=20～30d)[6],θc30d[7]。TP1mg/L、TN,,,,8～15d,θC=8～15d,[3,8]。、、3。3 Y(kgVSS/kgBOD5)Kd(d-1)ΔX(tSS/d)Y(kgSS/kgBOD5)0K≤1SP(tSS/d)XW(tSS/d)(tSS/d)Q=5.5×104m3/dθc=40～30dVSS/SS=0.75Y=0.4Kd=0.1ΔX0K=0.75Y=0.79～0.82SP=6.08～6.38.746.1Q=10×104m3/dθc=25～8dVSS/SS=0.7Y=0.55,Kd=0.05ΔX=5.6Yobs=0.65()ΔX=9.26K=1Y=1.22～1.39SP=17.1～19.516.7～19.515～20Q=10×104m3/dθc=25～20dVSS/SS=0.75Y=0.5Kd=0.08ΔX0K=0.95Y=1.16～1.19SP=16.3～16.716.3～16.716.3 3,。ASM1,θc30d,,θc≥30d,,ASM1,,、,。,,,,ASM2,。K0.75～1,,K,A2/O,K=1;ICEAS,K=0.95;,K=0.75,。3 1),,(ASM2)。,735 ,: ,。2),Y,,,,K(0.75～1),K,A2/O,K=1;ICEAS,K=0.95;,K=0.75。Y=K·0.6·(SSBOD5,i+1)-0.072·0.6·θc·fT,H1+0.08·θc·fT,H 3)θc30d,ASM1。:[1] .COD〔J〕.,1999,15(2):18-24.[2] ,,.〔J〕.,2001,20(4):199-200.[3] ,.〔M〕.,1998.[4] .〔J〕.,2001,27(7):15-18.[5] .〔J〕.,1999,15(6):53-55.[6] .〔M〕.,2000.[7] .〔J〕.,1997,13(3):17-18.[8] .〔M〕.,1999.(上接第46页):[1] ,,.〔J〕.,2000,20(3):7.[2] ,.〔J〕.,1998,(1):1-6.[3] ,.〔M〕.,1995,15(4):56～61.[4] ,.〔M〕.:,1991.[5] ,,.〔J〕.(S0),2002,376-381.[6] ,,.〔J〕.,1997,(5):59-65.[7] .〔J〕.,1994(2):4-8.74 25
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本文标题：城市污水生物除磷脱氮系统剩余污泥量的计算许劲
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