OCO工艺泥龄的确定及其工艺设计拟算曹君丽

第9卷第4期2006年10月西安文理学院学报:自然科学版JournalofXi'anUniversityofArts&Science(NatSciEd)Vol.9　No.4Oct.2006:1008-5564(2006)04-0086-05:2006-08-30:(1981—　),,,.OCO曹君丽1,张　静1,杜　娟2,周　艳1,张　云1(1.长安大学环境科学与工程学院,陕西西安　710064;2.西安交通大学能源与动力工程学院陕西西安　710049)　:OCO,,,OCO6～14.SPJALD,,.:OCO;;:X52　　　　　:A1　　,,、,,.A/O、A2/O、SBR、UNITANK,、.OCOPuritek.、、、.2　OCO2.1　OCO,BOD、N、POCO.OCO.1,OCO2[1].1　OCO　　　　　　　　　　　　　　2　OCO、OCO(1),,(2),,,OCO,.2.2　2.2.1　BOD和N的去除,P,,,BOD.,NO3-N2,BOD.,CO2、H2ONH3,,NH3NO3-.,NO3-..2.2.2　P的去除P,PP,,[1][2][3].3　3　OCOOCO,3.3:=—+Vdxdt=QX0-[QwXa+(Q-Qw)Xe]+V[-Y(dsdt)u-KdXa]⑴:dxdt———;(dsdt)u———;Qw———m3/d;Xe———mg/L;Xa———mg/L;Y———,(kg/kgBOD5);Kd———d-;,dxdt=0,X0=0,[Y(dsdt)u-KdXa]V=QwXa+(Q-Qw)Xe(2)(2)VXa,θc=VXaQwXa+(Q-QW)Xc,(2):Y(dsdt)u/Xa-kd=1θc(3)■S∞X■t,q,■S=qX■t,(dsdt)u/Xa=q()(4):q———⑷⑶:Yq-Kd=1θc⑸v=vmaxSKm+S,q=vmaxSKm+S:87　第4期曹君丽,等:OCO工艺泥龄的确定及其工艺设计拟算1θc=YvmaxSeKm+Se-Kd(,S=Se)⑹:Se=Ks(1+Kdθc)YVmaxθc-Kdθc-1(7),OCO,[4].η=So-SeSe,⑺:η=1-Ks(1+Kdθc)(YVmaxθc-Kdθc-1)So(8)(8),S0=200mg/L,:Y=0.5,Kd=0.05d-,v=0.2h-,Ks=200mg/L[5].(8)4.4　:4,,0～6d,.S0=200mg/L,90%,20mg/L,.OCO6～14d.4　:JutlanVidebakSPJALD,:160m3/h　　　　　　　　　　　TN64kg/d(53mg/L)1200m3/d、97m3/hTP16kg/dBOD240kg/d200mg/L:BOD15mg/LNH3()4mg/LTN8mg/LTP1.2mg/LNH3()2mg/LSS30mg/L[1]4.1　OCO①HRT:7.5～12.5h,7.5h,,::=1∶2.3∶3②:Xr=10000mg/L③50%④RNTN:ηTN=TNo-TNeTNo=53-853×100%=84.9%≈85%RN==ηTV1-ηTV=0.851-0.85×100%=567%⑤X=RR+1×Xr=0.561+0.56×10000=3600mg/L≈3.6kg/m388西安文理学院学报:自然科学版第9卷4.2　①V=Qt=160×7.5=1200m3②H=3.6m③S=VH=12003.6=333.3m2④(h)::=1∶2.3∶3T=1.19;T=2.74;T=3.57⑤V=Qt=160×1.19=190.4m3≈191m3　　　　V=Qt=160×2.74=438.4m3≈438m3V=Qt=160×3.57=571.2m3≈571m3r=1913.6π=4.1m　　　r+r=191+4383.6π=7.5m　　　r=12003.6π=10.3m4.3　WW=a(L0-Le)Q-bVXv+(S0-Se)Q×0.5①BODW1=a(L0-Le)Q=0.55×(0.2-0.015)×160×24=390.72mg/L②Xv=f·x=0.75×3600=2.77kg/m3W2=bVXv=0.05×1200×2.77=166.2kg/d③(NVSS).TSS50%W3=(S0-Se)Q×0.5=(0.13-0.03)×160×24×0.5=192kg/d④W=W1-W2+W3=390.72-166.2+192=416.52kg/dXw=W1-W2=390.72-166.2=224.52kg/d⑤θc[6]θc=XVW=3.6×1200416.52=10.37d:200mg/L,10.37d15mg/L,,93%.,93%,4,10d,,,OCO6～14d.5　　⑴OCO--,BOD,,.⑵,,.⑶,OCO6～14d.89　第4期曹君丽,等:OCO工艺泥龄的确定及其工艺设计拟算[　　　][1]　,.OCO[DB/OL].[2]　.[M].:,2001.173-175,176[3]　,,.OCO[DB/OL].,2004-10/2005-10[4]　,,.[M].:,2004.259-260[5]　,.[M].:,2003.156[6]　.[M].:,2001.75-77[　]DeterminationofSludgeAgeaboutOCOCraftandItsCalculateaboutTechnologicalDesignCAOJun-li1,ZHANGJing1,DUJuan2,ZHOUYan1,ZHANGYun1(1.SchoolofEnvironmentalScienceandEngineering,Chang'anUniversity,Xi'an710064,China;2.SchoolofEnergyandPower,Xi'anJiaotongUniversity,Xi'an710049,China)Abstract:TheprincipleofOCOcraftwasshowed,andobtainarelationabouttheefficiencyofprocessandsludgeageaccordingtothebalanceofmaterielandsupplies,fromthisdrawacurvebytheirrelation,atlastreceivedasuitableageofsludgeaboutOCOcraft,therangeofitisaboutsixtofourteendays.Simultane-ouslycarriesonthetechnologicaldesigntakeasewagetreatmentplantofDenmark'sasaninstancetocalcu-late,andgotasludgeageunderthesameefficiencyofprocess,thusconfirmedtheaccuracyoftherelationabouttheefficiencyofprocessandsludgeage.Keywords:OCOcraft;sludgeage;theefficiencyofprocess(上接第85页)ReliabilityAnalysisofStaticandDynamicAccuracyforScrewMechanismTUOYao-fei1,2,LIShao-hong1,2(1.DepartmentofElectronicandMechanicalEngineering,XidianUniversity,Xi'an710071,China;2.DepartmentofPhysicsandElectricalEngineering,YulinCollege,Yulin719000,China)Abstract:Thestaticanddynamicerrorsofscrewmechanismareindividuallyanalyzedbytakingvariouso-riginalerrorsandphysicalparametersasstochasticvariables.Thestaticanddynamicerrorsaresynthesizedaccordingtotheprincipleoflinearpile-upofsmalldisplacement.Basedonthestudiesabove,thereliabili-tymodelofkinematicsaccuracyofthemechanismisestablished.Finally,throughanexample,theinflu-encesofthestochasticvariablesonthereliabilityofkinematicsaccuracyofthemechanismarediscussed,andsomeusefulconclusionsareobtained.Keywords:screwmechanism;staticanddynamicerrors;reliabilityanalysis90西安文理学院学报:自然科学版第9卷