钢铁酸洗废液的处理与综合利用

:100622777(2000)0320012203X1,2(11,330039;21,330047):,,,,:;;;:X756:BTreatmentandComprehensiveUtilizationofPicklingWasteLiquidofIronandSteelFANCheng2chun1,LIYue2xiang2(1.JiangxiProvinceCommercialSchool,JiangxiNanchang330039,China;2.NanchangUniversity,JiangxiNanchang330047,China)Abstract:Thenewesttechnologicaladvancetoreusepicklingwasteliquidofironandsteelissummarized,thesepro2cesscanreducedtreatmentcosts,aswellasitcanincreacedtheeconomiceffect1Theseisapopularizingvalue.KeyWords:picklingwasteliquidofironandsteel;newesttechnologicaladvance;comprehensiveu2tilization;treatment,,,,,(CaSO42H2O),,,,,,:1[1]H2SO4100230g/L,,,20320006JIANGXIMETALLURGYVol.20,No.3June2000X:1999211222:(19622),,,,,100g/L,250g/L,,,3:(1)-5-10,FeSO47H2O;(2),(2025),FeSO47H2O;(3),,FeSO47H2O,,,,,,230g/L,(),FeSO47H2O,FeSO47H2O,,100g/L(16),,,,,,,,2[2],Fe2+,::(1),,FeSO4,pH23,,(2),NaOH,,pH,,(3),,SO2-4,,110((NH4)2SO46%9%),(NH4)2SO4,3[3]12t,,,,,,,3:(1);(2),,;(3),,,,Fe2+,,,,1:,,31203:,Fe2+,,,;,FeSO47H2O1,CaO(),[4]4[5](PFS),[Fe2(OH)n(SO4)3-n2]m,n2,m=f(n),PFS[Fe2(OH)3]3+,[Fe3(OH)6]3+,[Fe8(OH)20]4+,COD,pH(pH=411),PFS(),,PFS,,,,PFS(1)PFS,,m2-SO4/m2+Fe=1.301.35,,,MnO2,65,3h,40,NaNO2,6h,PFS(2)PFSm2-SO4/m2+Fe=1.301.35,,,80,A,4h,PFS5[6],FeO,Fe2O3,SiO2,Al2O3,CaO,MgO,ZnO,36%40%SO2,Fe2+SO2,Fe2+,,1%3%SO2H2SO4,,[1],.[J].,1991,(1):49.[2].HA[J].,1993,(11):5.[3],.[J].,1995,15(4):228.[4]1,[J].,1995,21(4):34.[5]1,[J].,1996,22(4):234.[6].[J].,1997,(4):32.()4120006