3紫外分光光度法测定垃圾渗滤液COD

19(300384)UV254.UVCODUV254.UVCODUV254COD.UVCODUV254CODX502A1005-8206(2005)02-0019-03DeterminationofCODinWasteLeachatebyUltravioletAbsorptionSpectrometryChiYongzhiLiYuZhangChunqingLiuYaweiLiShujie(DepartmentofMunicipalandEnvironmentalEngineering,TIUC,Tianjin300384)AbstractTherelationshipsofultravioletabsorbancyUV254and.UVwithCODwerestudiedrespectively.Thelineare-quationofUV254andCODandthelinearequationof.UVandCODweresetup,andtheformerismoresignificantthanthelatter.Becausethismethodcansavetime,manpowerandwithoutpretreatment,soUV254couldbeusedtoassesstheCODvalueofwasteleachateasaparameter.KeywordsUltravioletabsorptionspectrometryWasteleachateCODDeterminationCODCODCr80000mg/LCODCOD[1]COD200～400nm[2][3]CODCODCODCOD11.17521cm1.2254nm1cm752COD22.1COD1814.4mg/L103mL1cm200～400nm11254nmCOD((200310032004-07-21132Vol.13No.220054EnvironmentalSanitationEngineeringApril200520131UV254CODUV254CODmg/L1234567890.2700.2920.3650.4500.5800.7000.8200.9251.015202550701101602002202552ΔUVCODUV254UV365ΔUVCODmg/L1234567890.2700.2920.3650.4500.5800.7000.8200.9251.0150.1780.1920.2620.3340.4540.5610.6690.7660.8460.0920.0990.1030.1160.1220.1390.1510.1590.16920255070110160200220255UV25420a,[4]254nmUV254UV254UV2542.2COD2.2.1UV254COD254nm91UV254CODUV254COD21r=0.9984COD=b×UV254-a=317.87×UV254-67.99n=9rar0.0017=0.8982[5]rr0.001UV254CODb95%b317.87±16.67COD=317.87±16.67×UV254-67.992.2.2.UVCODΔUVCOD.UV=UV254-UV365UV365365nm[2]2.UVCOD32r=0.9962COD=3158.25×.UV-280.21UV254COD.UVCODb95%b3158.25±246.19COD=3158.25±246.19×.UV-280.2133.10～250mg/LUV254COD.UVCODr0.9953.2UV254.UV12.52.01.51.00.50200250300350/nm300250200150100500COD/(mg/L)0.100.120.140.160.18.UV3.UVCOD2UV254COD300250200150100500COD/(mg/L)UV2540.20.40.60.81.01.2212-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------COD3.3UV254CODUV254COD.UVCODb95%bUV254.UVUV254.UVCOD4[1].[M].,2002[2],.[M].1992[3].GC-MS[J].20034831-33[4].UV254[J].200224261-65[5].[M].19871971-5000200460001100350350～4005a5000t