AO一体化曝气生物滤池处理城市污水效能研究

A/O,,(,400045):,,/,:HRTCODSS:HRT;NH+4-N:HRT;TNTP:HRT/:HRT=9h,=1.95m,CODNH+4-N=121,SSTNTP=61:(2001BA604A01-03-02):;;;;:X703.1:C:1000-4602(2006)23-0084-04ResearchonTreatmentEfficiencyofMunicipalWastewaterwithA/OIntegratedBiologicalAeratedFilterHEQiang,DUANXiu2ju,LIUYa2li(KeyLaboratoryoftheThreeGorgesReservoirRegionsEco2EnvironmentMinistryofEducation,ChongqingUniversity,Chongqing400045,China)Abstract:Inordertoresolvetheproblemsofeasyblockageandshortoperationperiodsofconven2tionalBAF,itwasreconstructedtoA/Ointegratedbiologicalaeratedfilterbyaddinganoxictreatmentzone,anditstreatmentefficiencyofmunicipalwastewaterwasinvestigatedbyorthogonalexperiment.TheresultsshowthattheaffectingfactorsareHRT,air/waterratioandfillerlayerheight.TheaffectinglevelforCODandSSremovalisHRTair/waterratiofillerlayerheight.TheaffectinglevelforNH+4-NremovalisfillerlayerheightHRTair/waterratio.TheaffectinglevelforTNandTPremovalisHRTfillerlayerheightair/waterratio.ThesuitableoperationparametersofA/Ointegratedbiolog2icalaeratedfilterareobtainedthroughthesyntheticcomparisonofdifferentfactorsandlevels.TheyareHRTof9h,fillerlayerheightof1.95m,optimumair/waterratioof121forCOD,NH+4-Nremovalandoptimumair/waterratioof61forSS,TNandTPremoval.Keywords:wastewatertreatment;biologicalaeratedfilter;removalefficiency;orthogonalexperiment;operationparameters(BiologicalAeratedFilter,BAF)482223200612CHINAWATER&WASTEWATERVol.22No.23Dec.2006中国城镇水网[1],(1000m3/d)()A/O(IBAF),1IBAF,11Fig.1FlowchartofexperimentalprocessA/O,12#14#,500m3/d,1000m3/d,1015mm,60cm;,58mm7m7m4m,,22IBAFFig.2StructureofIBAF2pH,pH,,L9(33),9,,1/d,CODNH+4-NSSTNTP,11IBAFTab.1SchemeoftheorthogonalexperimentHRT/h/mABCD11(61)1(5)1(1.35)121(61)2(7)2(1.65)231(61)3(9)3(1.95)342(91)1(5)2(1.65)352(91)2(7)3(1.95)162(91)3(9)1(1.35)273(121)1(5)3(1.95)283(121)2(7)1(1.35)393(121)3(9)2(1.65)133119IBAF22IBAFTab.2RemovalperformanceofIBAF%CODSSNH+4-NTNTP183.9187.7159.0330.6828.93285.8389.3664.8636.8132.63387.4590.5773.9339.4238.39485.1587.5565.9332.8529.91586.9489.1873.9536.9733.82687.9989.8669.2934.6935.78786.3487.4370.2432.2331.16887.2788.6364.5831.4431.27988.9689.8271.6336.0336.7735823,:A/O22=67572.27,W=67591.04,ST=18.77SSKj1267.64262.69266.20266.71Kj2266.59267.17266.73266.65Kj3265.88270.25267.18266.75Qj71131.1971140.3071130.8371130.67Sj0.539.640.170.0097P=71130.67,W=71140.99,ST=10.32NH+4-NKj1197.82195.20192.90204.61Kj2209.17203.39202.42204.39Kj3206.45214.85218.12204.44Qj41835.4841877.0241920.2041812.08Sj23.4164.95108.130.0093P=41812.07,W=42008.57,ST=196.50TNKj1106.9195.7696.81103.68Kj2104.51105.22105.69103.73Kj399.7110.14108.62103.71Qj10764.0610790.6810780.2910755.07Sj8.9935.6125.220.0031P=10755.07,W=10824.88,ST=69.81TPKj199.9590.0095.9899.52Kj299.5197.7299.3199.57Kj399.20110.94103.3799.57Qj9910.969985.639920.009910.87Sj0.09574.769.130.00073P=9910.87,W=9994.85,ST=83.98Sj,3:COD:SjBSjASjC,CODSS:SjBSjASjC,SS:SjCSjBSjA,TN:SjBSjCSjA,TNTP:SjBSjCSjA,TP3124=0.100.05,F0.90(2,2)=9.0F0.95(2,2)=19.04,COD,FAFB19,FC9,AB,C;,SS,FAFB19,FC9,AB,C;TNTP,FAFBFC19,ABC4Tab.4SquaredeviationanalysisoftheorthogonalexperimentCODFSSFFTNFTPFA22.415210.000.26554.6411.7052517.204.49529000.0475130.14B26.75586.964.82993.8132.4756983.8717.80511487.1037.38102410.96C20.20517.830.08517.5354.06511626.8812.618135.484.56512506.8520.01150.004850.004650.001550.000365,CODABC;SSTNTPBC,A;NH+4-NABCCOD[2],A:Se=0.023,r=23,F0.90(2,2)=9dT=F0.90(2,2)(Se/r)1/2=0.56|kA1-kA2|dT,|kA1-kA3|dT,|kA2-kA3|682322:123SSNH+4-NTNTP,ABC4A/O:CODSS:;TNTP:;:CODSSTNTP:=9h,=1.95mCODNH+4-N=121,SSTNTP61:[1]PujolR.Processimprovementsforupflowsubmergedbio2filters[J].Water21,2000,32(1):25-29.[2],.[M].:,1985.E-mail:[e-mail]:2006-08-25(83),,,,,SS20mg/L,,,,,,,HRT1h,COD,,HRT45min30min,,,,,,,1#COD3,COD65%,,=13COD42%,40,,,:[1],,.[J].,2004,34(1):1-3.[2],,.[J].,2003,19(3):11-13.[3],,,.[J].(),2004,23(1):61-64.:[phone]E-mail:[e-mail]:2006-08-037823,:A/O22中国城镇水网