23废水好氧生物处理工艺1活性污泥法

1111212122111.0021.0060.020.2mm20100cm2/ml1)99.299.8%MaMeMiMii221)2)3)20304)----------103/ml3MLSSMixedLiquorSuspendedSolidsMLSS=Ma+Me+Mi+Miimg/lg/m3MLVSSMixedVolatileLiquorSuspendedSolidsMLVSS=Ma+Me+MiMLVSS/MLSS0.75~0.85SVSludgeVolume30%2030%SVISludgeVolumeIndex301gml/g)/()/((%))/()/(lgMLSSlmlSVlgMLSSlmlSVSVI10SVI50150ml/g1BODXa031)2)3)a.b.c.BOD5CODF/M(2.2dkgVSSkgBOD/5)F/M2F/MF/M3():vrbVXaQSx;:x(VSS),dkg/rwXQQ(dm/3)eirSSSiS5BOD(35/mkgBODlmgBOD/5)4eS5BOD(35/mkgBODlmgBOD/5)a,b65.0~5.0a1.0~05.0b4:vrXVbSQaO''22OdkgO/2'a5kgBODdkgBODkgO52/'bkgVSSdkgVSSkgO/25:(1030min)BOD5(COD)BOD5BOD51VolumetricOrganicLoadingRateBOD5VCQLivCOD)(3dmkgCOD;VBQLivBOD5)(35dmkgBOD2SludgeOrganicLoadingRateVMLSSCQLisCODdkgMLSSkgCOD;VMLSSBQLisBOD5dkgMLSSkgBOD53HydraulicRetentionTimeQVHRTh4SludgeRetentionTimerwXQXVSRThd5rQQR11)BOD590-95%2)1)2)3)()2a.F/Mb.c.a.b.36a.b.4a.b.5a.b.c.1000m3/d67a.5b.80~90%10%c.40007000mg/ld.SVI80.80.911.802.60kgO2/kw.h2.5%79a.78mb.c.a.b.1016m50150ma.10b.c.d.e.()BOD5SS(kgBOD5/kgMLSS.d)0.20.40.20.60.20.4(kgBOD5/m3.d)0.30.6082.00.61.0(d)515515515MLSS(mg/l)150030003000600020003500MLVSS(mg/l)120024002400480016002800(%)2550251002575HRT(h)483538BOD5(%)859585908590BOD5SS(kgBOD5/kgMLSS.d)0.20.60.050.151.55.0(kgBOD5/m3.d)1.01.20.10.41.22.4(d)51520300.252.5MLSS(mg/l)1000300040001000030006000200500MLVSS(mg/l)80024003200800024004800160400(%)2510075100515HRT(h)0.51.03618481.53.0BOD5(%)8090956075BOD5SS(kgBOD5/kgMLSS.d)0.41.01.01.2(kgBOD5/m3.d)2.03.23.03.6(d)5155MLSS(mg/l)60001000030005000MLVSS(mg/l)40006500240040008(%)25504080HRT(h)1.53.01.02.0DO(mg/l)610SVI(ml/g)3050BOD5(%)75958590123,1MichaelisMentonSKSvmmax9vmaxvmKSPEESSE2Monod19421950SKSsmaxxdtdx/dkgVSSkgVSS/maxSmg/lsKvSKSSmaxxdtdsv)(dkgVSSkgBOD5maxvSvmaxv=vmax2maxvvOKmS10sK1)SsKmaxmaxXKXdtdS1max2)SsKSKKS2maxXSKdtdS2LawrenceMcCarty1XdtdS)(XdtdSqu)(cdxXVc:xiewrwcXQXQQXQXV)(11rwcXQXVcXdtdx/TTctxx/1cc12LMXKdtdsYdtdxduYdkgBODkgVSS5/dK1ddkgVSSkgVSS/dcKYq1cYqSKSvvsmaxXdtdsqvuSKSXqdtdssumaxSmaxqsK3L-MeSc12seeuKSSvXdtdsqmax)/(dcKqY1dseecKKSSvYmax11)()1(maxdccdseKYvKKSLawrenceMcCartyI.II.123iewwcQXXQQXQVX)(wcQVXc=-eueiTQSRVdtdsRQSQSdtdsV)1()/()/(0VSSQdtdseiu)(cdeicKVSSQYX1QVHRTt/cdeicKSSYtX1c13tcRc=-XRQVXKdtdsYQXRQXVdtdxduir)1()(0Xdtdsqu/)/(XRQVXKYqRQXdr)1()(dcKYq1XXRRVQrc11rXSVIXr61012SVIMLSSMLVSSYobsYYusdtdSdtdXY)()(obsYuTobsdtdSdtdXY)/()/(qXdtdSXdtdXYuTobs//)/(/)/(c1dcKYq1)1/(cdobsKYYYdKcdobsYKYY1114obsY1cYdK)(/eiobsSSQxYcSeE(3)cSeEcSeE(c)minSe=SIdesecKSKSvYmax1disicKSKSvYmaxmin)(1isSKdcKvYmaxmin)(1SKSvvsmaxqvSKSvqsmaxesSK,SKSKvqsmaxsKvKmaxKSXdtdsqu)/(KSXdtdsu)/(VSSQtSSdtdseieiu/)(/)()/(XVSSQKSqeie)(XqSSQVei)(sK)(maxmaxqvYdKsK)(maxmaxqveseSKSvvmaxmaxmax111vSvKveXdtdsqvu/eIuSStXdtdsXqv)/(1115tqv11eSv11~maxvKsmax1vYdKdcKqY1tXSSXdtdsqeiu)/(ceSqcq1~YdK1FickFickFickdydCDvLd(1)dvLDCydydC1MtA16AdtdMvd/)((2)1dydCADdtdML)((3)2Lewis&Whitman19231)2)3)4)5)6)igPPigPPiCsCiC()lylisyCCdydC43LLsLyCCADdtdM5dtdMkgO2/hygyiCLCiPiPg17LDm2/hAm2LLsyCCkgO2/m3.mV(m3))(/LsLLCCVyADVdtdM6)(LsLCCVAKdtdC6dtdCkgO2/m3.hKLm/hLLLyDK/LaKVAKL)(isLaCCKdtdC7LaKh-1VyADVAKKLLLLa8LaKLaKLaK1/KLahlCCsdC/dt81)LaK2)Cs3LaKLaK7dtKCCdCLas9tKCCCCLatss0ln1010tKCCCCLatss3.2)lg(0(10)C0t=0(mg/l)Ctt=t(mg/l)Cs(mg/l)1810tssCCCC0lgtKLa/2.3LaK1)Na2SO3CoCl21mg/L7.9mg/LNa2SO310~20%CoCl2Co2+1.5mg/LCo2+2)106~103)tssCCCC0tssCCCC0lgtKLa/2.320CR0kgO2/hRkgO2/h1KLaKLaKLaLaLawKKKLaw=0.80.852CssswCCCswmg/l0.90.973KLaKLaKLa)20()20()(024.1TLaTLaKKKLaTKLa20TC20CTC4CsCsC01234567891014.6214.2313.8413.4813.1312.8012.4812.1711.8711.5911.3319mg/lC1112131415161718192021mg/l11.0810.8310.6010.3710.159.959.749.549.359.178.99C222324252627282930mg/l8.838.638.538.388.228.077.927.777.635CsCsCs(P)'10013.1'5)760()(PPPCCsPs15PPaCs(P)Cs(760)PCsmg/lPPaPkPa)760(5)760()(10013.1ssPsCPCC510013.1PCsCsm52110013.1212121btssssmPOCCCC(18)Ot%AAtEEO12179121(19)EA%6%12%PbHPPb3108.9(20)PP1.013105PaHm1R0VCKVCCKVdtdCRsmLaLsmLa)20()20()20()20(0CLCL=0;Vm3TPRVCCKRLTsmTLa)()20()20(024.1R0/RLTsmTsmCCCRR)()20()20(0024.123R0/R=1.331.612023LTsmTsmCCCRR)()20()20(0024.124CL2mg/l2cAORE0EAOCkgO2/hssCGGO28.0331.1%2121%1.33120Ckg/m3Gsm3/hGsAsERG28.0027EA24R0R0vrVXbQSaO''2281(28)O2=R=O224R0LTsmTsmCCCRR)()20()20(0024.127AsERG28.00m3/dGs(m3/min)2R028O2R=O2LTsTsCCCRR)()20()20(0024.1R0[]Q10000m3/dBOD5150mg/lBOD515mg/lV3000m3Xr=2000mg/lEA=10%,21Cl=2mg/lT=250C4.5ma=0.5,b=0.1,=0.85,=0.95=1.0(1)Gsm3/min(2)R0(kgO2/h)[]A(1)28RVXbSSQaOvei'(')21000200030001.01000)15150(100005.02ORhkgOdkgO/1.53/127522(2)1820C25CPbPaHPPb535310454.15.4108.910013.1108.919%3.19)1.01(2179)1.01(21)1(2179)1(21AAtEEO20C25CCs(20)=9.17mg/l;Cs(25)=8.38mg/l;18LmgCsm/79.10213.1910013.110454.117.92155)20(LmgCsm/86.9213.1910013.110454.138.82155)25(3R024LTsmTsmCCCRR)()20()20(0024.1hkgO/3.81286.90.195.0024.185.079.1013.532)2025(427min/4.48/6.2903%1028.03.8128.0330mhmERGAsB.29R0LTsTsCCCRR)()20()20(0024.1hkgO/4.85)238.80.195.0(024.185.017.913.532)2025(221Ep1kgO2/kw.hEA%R0kgO2/h22mm200mEA=1525%2kgO2/kw.h26mm1)2)EA=20%31)2)3)K1)9102388.18.210379.0DvKR308.2320804.0DvKNR0kgO2/hNkwVm/sDmK1K22)K11010mm45m/s3)123060r/min22.54)130254.054.85BOD51)2)3)4