高效低能耗污水处理装置中生物脱氮技术的研究徐亚同

　1999,5(Suppl):94～98　　Chin.J.Appl.Environ.Biol.　1999-10-05　:1999-05-19　　:199-06-01徐亚同　史家樑　张大鹏　郭文艳　张　明　谢　冰(　　200062)　　,BOD0.05～0.46kg/m3d-1,,CODCr80%,BOD590%,NH3-N.,,N10%50%.　;;;;　X703∶X172STUDYONTHETECHNOLOGYOFBIOLOGICALNITROGENREMOVALINHIGHEFICIENCYANDLOWENERGY-COSTWASTEWATERTREATMENTEQUIPMENTXUYatong,SHIJialiang,ZHANGDapeng,GUOWenyan,ZHANGMing&XIEBing(Dep.EnvironmentalScienceandTechnology,EastChinaNormalUniversity,Shanghai　200062)Abstract　Treatingurbandomesticwastewateratnormalandlowconcentrationwithvolumetricloadingofabout0.05～0.46kgm-3d-1underdifferentconditionsofinfluentflow,thishigheffifiencyandlowenergycostwastewatertreatmentequipmentprovedveryeffective,suchasmorethan80%CODcrremoval,over90%BOD5removalandqualifiedeffluentNH3-Nconcentration.Furthermore,theremovalofTNcouldbeimprovedfrom10%toabout50%byaddingaback-flowapparatusintreatingurbandomesticwastewateratlowconcen-tration.Keywords　nitrogenremoval;nitrification;denitrification;domesticwastewater;lowenergyconsume,,.,A/O、A2/O,NH3-N[1],,[2];“”,COD、BOD,,NH3-N[4].,,CODCrNH3-N.N.1　1.1　.:①;②A/O,(1).,,BOD,NH3-N;,NO3--NN2,BOD.,NH3-NNO3--N;(BOD),.1.2　(1).,,:d=9cm;d=2cm.1.3　,(ρ/gL-1):0.067,Na2CO30.067,0.05,NaHCO30.02,0.033,Na3PO40.017,0.017,(NH4)2CO30.028,0.022.1L.,.1　Table1　ThedimensionofthestructuresStructurenamehe/cmd/cmVe/LAnaerobicbiologicalfilter392113.5(1)Aerobicbiologicalfilter(Structure1)46125.2(2)Aerobicbiologicalfilter(Structure2)9696.11.4　CODCr、BOD5、NH3-N、NO2--N、NO3--NTN,[3].2　COD,(ρCOD≈400mg/L)(ρCOD≈200mg/L).,11(OCI～XI).2.1　ⅠⅡ:Ⅰ(2、3):qv=36L/d,tHR=12h,V()∶V()=2:1(tHR=8h,tHR=4h),BOD0.25kgm-3d-1;03-17～04-24,COD,.Ⅱ(4、5):qv=36L/d,tHR=12h(Ⅰ);04-25～05-14.2　ⅠCODBOD＊Table2　Theremovalefficiency(RE)ofCODCrandBOD5underoper-ationconditionⅠDateCODCr(ρ/mgL-1)InEfRE/%BOD5(ρ/mgL-1)InEfRE/%03-17189.734.182.003-24239.822.790.504-01220.447.878.304-09159.021.786.004-17304.021.692.9155.23.497.804-24164.610.393.8102.13.197.0＊In=Influent;Ef=Effluent;RE=RemovalEfficiency.(Thesamebe-low).　　,56,ⅠⅡ.,ⅠⅡ,,COD200mg/L,BOD100mg/L,ρ(N),ρ(TN)30mg/L,ρ(NH3-N)≈11mg/L.,COD、BOD,,,95Suppl:　　.Ⅱ,,,TN.,(COD、BOD)(6),N(7).3　ⅠNTable3　TheconversionbetweenthenitrogencompoundsunderoperationconditionⅠDateρ(NH3-N)/mgL-1InEfρ(NO2--N)/mgL-1InEfρ(NO3--N)/mgL-1InEfρ(TN)/mgL-1InEfRE/%03-177.214.306.80327.526.24.803-248.09.001.508.132.725.023.704-017.46.401.0010.137.034.22.804-0916.412.901.3015.935.230.114.504-1718.32.000011.931.930.15.604-2414.19.000.45016.228.627.24.82.2　,,,Ⅰ,A/ON.,tHRρt,(4　ⅡCODBODTable4　TheremovalefficiencyofCODCrandBOD5underoperationconditionⅡDateCODCr(ρ/mgL-1)InEfRE/%BOD5(ρ/mgL-1)InEfRE/%05-08191.719.889.7%169.02.098.805-14105.619.381.7%43.65.587.OCⅢ～Ⅺ),(8),Ⅲ～Ⅶ,ρ(COD)400mg/L,ρ(BOD)200mg/L,ρ(NH3-N)25mg/L.(,,,,.)5　ⅡNTable5　ThetransformationresultsofnitrogencompoundsunderoperationconditionⅡDateρ(NH3-N)/mgL-1InEfρ(NO2--N)/mgL-1InEfρ(NO3--N)/mgL-1InEfρ(TN)/mgL-1InEfRE/%05-089.71.600.1708.3328.812.955.205-1413.05.500.7508.422.514.933.86　ⅠⅡCODCr、BOD5Table6　ComparisonoftheremovalefficiencyofCODCr,BOD5andthevolumeloadingbeweenoperationconditionsⅠ&ⅡOC＊qv/Ld-1BODVolumeloadingofBOD(ρt(BOD)/kgm-3d-1)CODCr(ρ/mgL-1)InEfRE/%BOD5(ρ/mgL-1)InEfRE/%Ⅰ360.25212.926.487.6128.73.397.5Ⅱ360.20148.719.686.8106.33.896.4　　　　　＊OC=Operatingcondition(Thesamebelow)7　ⅠⅡNTable7　ComparisonoftheconversionofnitrogencompoundsbeweenoperationconditionsⅠ&ⅡOCρ(NH3-N)/mgL-1InEfρ(NO2--N)/mgL-1InEfρ(NO3--N)/mgL-1InEfρ(TN)/mgL-1InEfRE/%Ⅰ11.98.901.85010.8532.228.810.6Ⅱ11.33.500.4708.372513.745.268、79:ⅢⅠ,ρt,CODCr、BOD5,,NOX--N,NNH3-N,,,N,TNⅠ.96　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　589:8　CODCr、BOD5Table8　ComparisonoftheremovalefficiencyofCODCr,BOD5fromthenormalconcentrationwastewaterunderdiferentoperationconditionsOCBack-flowqv/Ld-1ρt(BOD)/kgm-3d-1＊CODCr　(ρ/mgL-1)InEfRE/%BOD5　(ρ/mgL-1)InEfRE/%Ⅲ-360.46357.768.780.8271.043.284.1Ⅳ-180.26420.070.583.2276.014.994.6Ⅴ-120.10362.031.991.2159.69.893.9Ⅵ-80.08332.537.388.8194.513.193.3Ⅶ-40.05383.245.988.0Ⅷ+360.21273.220.492.5120.94.796.1Ⅸ+180.23251.05.098.0Ⅹ+120.15251.05.098.0Ⅺ+60.08429.024.294.3260.05.098.0　　　　＊ρt/kgm-3d-1:Volumeload(Thesamebelow)9　NTable9　ComparisonoftheconversionofnitrogencompoundsinthenormalconcentrationwastewaterOCρ(NH3-N)/mgL-1InEfρ(NO2--N)/mgL-1InEfρ(NO3--N)/mgL-1InEfρ(TN)/mgL-1)InEfRE/%Ⅲ13.827.600.3800.4752.643.417.5Ⅳ33.741.000.7300.4058.651.112.8Ⅴ28.228.104.906.0652.443.816.4Ⅵ16.622.907.8012.952.846.911.2Ⅶ18.913.509.5023.662.658.56.6Ⅷ19.825.900.802.757.438.731.0Ⅸ16.022.902.506.359.646.821.3Ⅹ14.814.401.304.054.326.052.1Ⅺ17.65.401.0010.058.123.160.2①ⅣⅢ,,CODCr、BOD5,,NOX--N,,N.②,CODCr、BOD5;,ⅤⅢⅣ,,NNO3--N.③ⅥⅤ,,,NOX--N,CODCr、BOD5Ⅲ、Ⅳ,N,,N.,Ⅵ,NH3-N(15mg/L),,.④Ⅶ,,NNOX--N,NH3-N13.5mg/L,.⑤()(2、3):,,,CODCr、BOD5,.,CODCr、BOD5,.ρt(BOD)0.2kgm-3d-1,,NOx--N.6、7Ⅷ～Ⅺ,,,,NH3-N;,NO2--NNO3--N.12L/d,BOD0.15kgm-3d-1,NH3-N15mg/L.TN,,NOx--N,,TN.97Suppl:　　2BOD(ρt)CODcrCOD5Fig.2ThecorrelationbetweenthevolumeloadingofBODandRE/%ofCODcrandBOD53BODFig.2ThecorrelationbetweenthevolumeloadingofBODandthenitrification2.3　:,1,2,,2,.1,;2,,21.,1,TNN,NNOX--N,.,,2,COD.,2,,.3　3.1　A/O(6,7),,CODCr、BOD5、NH3-N、NOX--N