滴定法测定废水中高浓度六价铬的研究

:1008-5580(2005)03-003-021,2(11,610023;21,201800),CODCr,;,:O65512:B:2005-04-20:(1963-),,;:[1]1mgPL,,,[1],,,,CODCr,,1111:1202h()112258g,,1000mL,,(1P6K2Cr2O7)=0.02500molPL:11485g(C12H8N2H2O,1,10-phenanthnoline),01695g(FeSO47H2O),100mL,:[(NH4)2Fe(SO4)26H2O]3195g,20mLH2SO4,1000mL,,,112100mL500mL,20mL(),,10mL,3;,:c[(NH4)2Fe(SO4)2]=0.0250010100V1133500,7550114,,,,,21H2SO41#(mgPL)2#(mgPL)(20010mgPL)20mL87148841112001187150841322001287155841562001287147831971991830mL83121821101961883116811951971183132821151971683128811891961921#(mgPL)2#(mgPL)(20010mgPL)801447617419711801267617819615801507617219619JournalofChengduTextileCollege223(77)20057Vol.22,No.3(Sum77)21#(mgPL)2#(mgPL)(20010mgPL)8014276162197128714884111200118715084132200128715584156200128714783197199183(mgPL)(mgPL)(mgPL)1#87148881508015871508719791687155871280178714788117912(200.0mgPL)2001120211192132001220010193112001220115191191991820016192141,,,20mL,;20mL,20mL,,2,,,:,,,3,,,1mgPL,,,,3CODCr,OODCr,,[1][M]1:,19961[2]1[M]1:,19921OnTitrimetricMethodUsedtoDetermineHighConcentrationCr6+ofWasteWaterYANGDong-jie1,LIUJia-yang2(1.DepartmentofDyeingandChemistry,Chengdu610023;2.EnvironmentalMonitoringStation,JiadingDistrict,Shanghai201800)Abstract:ReagentusedtodetermineCODCrwasutilizedtoanalyzehighconcentrationCr6+ofwastewater;andtheresultswerecomparedanddiscussed;themethodisprovedtobesimple,fastandeasytomaster.Keywords:Cr6+,titrimetricmethod,wastewaterwithhighconcentrationCr6+420057