sup的处理实验研究

36AppliedScienceCr3+618000Cr3+PHPH46BV/hG822.1A1674-6708201015-0096-021PH6~7Cr(OH)310ppm25%1ppm8032(Cr3+)Cr6+(CrO42-)(Cr2O72-)33.1100ml,Cr3+1000mg/L100ml=0.1g4.4mmol/g60%70%70%0.1/4.4mmol/g52g/mol0.7=0.6244g3.215100ml.HClNaOHPH12347250.6244g5324h50ml3.3,PH70100%PH7NaOH,Cr(OH)3Cr3+PH4PH12PH347PH7Cr3++3OH-=Cr(OH)3Cr3+Cr(OH)3Cr(OH)3Cr(OH)3Cr3+-3eCr6+20PO&UPJ/hPOJPPROJPPROJhJPROhJPO+&O1D2+3+JKPO3+3+1D2+&U2+&U3+3+36333552010992.indd92010--01:1:83AppliedScience123[1].[J].,2009(1).[2],.[J].:,2007(5).27129396100{RSO3HH20100RH+H2S04}100PH44PHPH4[1][M]..[2],,.[M]..[3]..1,1995,5.[1],[J].,1997,1.[2],[J].,2003.[3],.()[J].,2005,6.[4].[J].,2009.65000333355201092.indd922010--01:1:7