化学需氧量COD绿色测定方法研究李可

　　:2003-05-06::　(1981-),,化学需氧量(COD)绿色测定方法研究李　可,　赵仕林,　赵　凡,　王咏梅,　杨丽雪,　廖　洋(,610066)　　:COD,.,、50%,Ce(SO4)2,.,COD41%.:;;;:O661.1　　:A　　:1001-8395(2003)06-0649-03　　,COD,[1].,、、、、,、、、[2],COD,[3].,50%.COD,,COD,[4].,[5],Ce(SO4)2.,COD,,[6].COD,.1　1.1　　:K2Cr2O7、Ce(SO4)2、Hg-SO4、H2SO4、Ag2SO4,、、、、,FeNH2(SO4)4·10H2O,,.:COD(JHR-2).1.2　1.2.1　重铬酸钾法　、.GB11914-98COD.1.2.2　硫酸高铈法　GB11914-98COD,.1.3　(%)=COD-CODCOD×100%.CODCO2H2O,,COD,:C+4COD[6].CODGB11914-89.2　2.1　2.1.1　重铬酸钾法测定含苯废水1　/mL/mL/mL/%X/%S10.0225.0018.532.0920.0225.0018.512.182.160.0730.0225.0018.502.220.0025.0019.000.00　　　X;S,　200311　26　6()JournalofSichuanNormalUniversity(NaturalScience)Nov.,2003　Vol.26,No.6　2.1.2　重铬酸钾法测定含苯甲醛废水2　/mL/mL/mL/%X/%S10.0250.0029.5040.8720.0250.0029.7039.9040.710.7430.0250.0029.4041.350.0050.0038.000.002.1.3　重铬酸钾法测定含对羟基苯甲醛废水3　/g/mL/mL/%X/%S10.02550.0029.6939.5720.02550.0029.6539.7639.780.2230.02550.0029.6040.000.00050.0038.000.002.1.4　重铬酸钾法测定含对甲氧基苯甲醛废水4　/mL/mL/mL/%X/%S10.0250.0029.6939.8020.0250.0029.6539.9939.890.1030.0250.0029.6739.890.0050.0038.000.002.1.5　重铬酸钾法测定含苯甲酸废水5　/g/mL/mL/%X/%S10.02225.0016.1513.6820.02225.0016.1813.5313.560.1030.02225.0016.1913.480.00025.0019.000.00:50%,:.2.2　2.2.1　硫酸高铈法测定含苯废水6　/mL/mL/mL/%X/%S10.0225.0017.5014.5020.0225.0017.4013.3317.440.0530.0225.0017.4314.850.0025.0020.400.002.2.2　硫酸高铈法测定含苯甲醛废水7　/mL/mL/mL/%X/%S10.0225.001.8389.2820.0225.001.8589.1889.230.0530.0225.001.8489.230.0025.0020.400.002.2.3　硫酸高铈法测定含对羟基苯甲醛废水8　/g/mL/mL/%X/%S10.02525.004.1077.6220.02525.004.2077.1477.380.2430.02525.004.1577.380.00025.0020.400.002.2.4　硫酸高铈法测定含对甲氧基苯甲醛废水9　/mL/mL/mL/%X/%S10.0225.005.3172.2720.0225.005.3172.2772.970.8130.0225.005.3474.380.0025.0020.400.002.2.5　硫酸高铈法测定含苯甲酸废水10　/g/mL/mL/%X/%S10.02225.0015.4723.6620.02225.0015.6023.0722.920.8030.02225.0015.8022.070.00025.0020.400.00:650　　()26,,70%,:.2.3　11　、2.1640.7139.7839.8913.5617.4489.2377.3872.9722.9211,,,COD.2.4　2.4.1　重铬酸钾法测定印钞废水的COD12　COD/mL/mL/mLCODX/%S12.0025.0013.25552.022.0025.0013.30547.25524.8032.0025.0013.20556.80.0025.0019.000.002.4.2　硫酸高铈法测定印钞废水的COD13　COD/mL/mL/mLCODX/%S12.0025.0012.25782.422.0025.0012.30777.6778.63.4532.0025.0012.32556.80.0025.0012.400.00:CODCOD,,41%,.3　,CODCrCOD,,[7].,50%,,.[1].[M].:,2001.4:104～107.[2],.[M].:,2002.[3],,,.[J].(),2002,25(3):307～309.[4],,.[J].,2001,18(16):38～40.[5].[J].(),1999,38(34):27～28.[6].COD[J].,1998,13(22):24～25.[7].CODCOD[J].,1998,12(14):42～44.GreenDeterminationMethodofChemistryOxygenDemandLIKe,　ZHAOShi-lin,　ZHAOFan,　WANGYong-mei,　YANGLi-xue,　LIAOYang(CollegeofChemistry,SichuanNormalUniversity,Chengdu610066,Sichuan)Abstract:ThereexistsaproblemoflowerpercentageofoxidizationtotheorganicmattersofbenzeneandaromatichydrocarbonswhenwedeterminetheCODbythemethodofpotassiumdichromatetitration.Fromtheresultsofexperiments,theCODdeterminedbythemethodofpotassiumdichromatetitrationis50%lowerthanthatoftheory,andthismethoditselfisharmfultoenvironmentandpeople.TheCODdeter-minedbythemethodofcericsulfatetitrationishigherthantheCODdeterminedbythemethodofpotassiumdichromatetitration.Keywords:Chemistryoxygendemand;Wastewater;Percentageofoxidation;Greendeterminationmethod(编辑　余　毅)6516　:(COD)