含铬废水微波还原处理工艺研究

273(107)200809HydrometallurgyofChinaVol.27No.3(Sum.107)Sep.20081,2,1(1.,411105;2.,450008):,,Cr()26g/L,pH-0.5,,Cr()0.48mg/L,,,:;;;:X756:A:100922617(2008)0320173203:2007212212:(1983),,,,,Cr()Cr(),,Cr()Cr()100,Cr()200mg/L,[1],Cr()Cr()[2][3][4][5][6][7],[8][9],pHCr()Cr()26g/L,pH-0.5,[10]MK,Cr()Cr(),Cr(OH)3,Cr(),,,,11.1,1,pH-0.5,651g/LCr()Cr()HClH2SO4K+Al3+26101002518:721;HWWB210;SHA2C;DJ1C;L522371:MK,1.2100mL250mL,,65(),(),,(,,,,),[11]Cr(),Cr()Cr()20080922.1Cr(),3min,,Cr(),Cr(),11Cr()1,,,Cr()Cr(),Cr()85,,75,,,,,Cr():n[C6H10O5]+nH2SO4n[C6H11O5]HSO4,(1)n[C6H11O5]HSO4+nH2On[C6H12O6]+nH2SO4,(2)4Cr2O2-7+C6H12O6+32H+8Cr3++6CO2+22H2O,(3)(1),(2),(3)C6H12O6MK,,,,,Cr()Cr(),C6H12O6,2.2Cr()Cr(),,,,,Cr(),,,Cr()Cr()22Cr()2,100,Cr()1300mg/L,Cr(),,Cr(),,,1,H2SO4H+,H2SO4Cr(),C6H12O6,,,C6H12O6Cr2O2-7,,Cr()Cr()2.3Cr(),95,Cr()3,Cr(),Cr(),,2min,1min3,4,,,471273,:3Cr()42.4Cr()26g/L,pH-0.5,MK16g/L,98,5min,Cr()0.48mg/L,GB89781988Cr()(0.5mg/L),,,Cr()1.25mg/L31),Cr()Cr(),,2)Cr()26g/L,pH-0.5,,,,,Cr()0.48mg/L,:[1].Cr()[J].,2006,25(3):2852288.[2],,,.[J].,2006,7(4):1202123.[3],,,.[J].,2006,19(2):25226.[4],,,.[J].,2006,25(11):49251.[5],,.[J].,2007,33(6):23225.[6],,.Cr()[J].,2007,36(1):22224.[7],,,.2[J].:,2006,25(3):66269.[8],,,.2[J].,2006,25(4):3352338.[9],,,.2[J].2006,29(5):79280.[10].Cr()[D].:,2004:1.[11]..CJ/T7121999[S].19992624.TreatmentofCr()2containingWasteWaterbyMicrowaveCatalysisReductionLIYi1,ZHANGJian2,SUNChuan2zhu1(1.EnvironmentalScienceandEngineeringDepartment,XiangtanUniversity,Xiangtan,Hu’nan411105,China;2.ZhengzhouWaterConservancySchool,Zhengzhou,He’nan450008,China)Abstract:Themicrowavecatalysisreductionhaslowenergyconsumption,highreactivespeed.Thewastewatertreatedbymicrowavecatalysisreductioncanbedischargeddirectly.ForthewastewaterthatinitialCr()concentrationisof26g/LandpHisof-0.5,concentrationofCr()indischargedwatercanbereducedto0.48mg/L.Theexperimentalresultsshowedthatmicrowaveheatingcanobviouslyincreasereactivespeedconstantandreduceactivationenergy.Keywords:Cr()2containingwastewater;microwave;reduction;management571