粉煤灰在造纸废水处理中的应用

2520066Vol.25Suppl.JournalofLiaoningTechnicalUniversityJun.20062006-03-15Z200530305124803A1978-E-mail:[e-mail]1008-0562(2006)1-0316-02112(1.0500412.050054X794AApplicationofflyashintreatmentofwastewaterinpapermakingGONGYou-kui1,XIANGHui-qiang1,LIUFen2(1.DepartmentofArchitecture,ShijiazhuangInstituteofRailwayTechnology,Shijiazhuang050041,China;2.CollegeofMechanicalandElectronicEngineering,HebeiUniversityofScienceandTechnology,Shijiazhuang050054,China;)AbstractInordertosolvetheenvironmentalpollutioncausedbypapermakingwastewaterandflyash,applicationofflyashassorbent,addedaftermodificationandcombinedwithotherprocessinthetreatmentofpapermakingwastewaterwassummarized.Theresultsshowthatapplicationofflyashinpapermakingwastewatertreatmenthasthecharacteristicofsimpleinprocess,goodeffectandloweroperationcost.Andthisprocesshasexpansiveapplicationforeground.Theproblemsremainedwerepointedout.Furtherresearchonthemechanismofwastewatertreatmentwithflyash,separationandfinalutilizationofthesaturatedflyashareneededtodointhenearfuture.Keywordsflyashpapermakingwastewaterpollution[1]1[1]3.7tCODBOD5ZnSS69.0%81.7%93.7%51.3%2COD20.8%19%pH5.0COD18.7%14.3%317Al3+Fe3+SiO2[2]3Al3+Fe3+Al3+Fe3+H2SiO3Al3+Fe3+H2SiO3CODH2SO4COD30030min70%pH72010min[1][3]35g200~300µm20min95%4CaOMgOK2OCOD72%SS97%COD42%SS47%[1]500mg/L20%50%FentonpH3H2O22.5mL/LFeSO4150mg/LFentonCOD86%90%300g/L3hCOD68%[1]FentonH2O2Fe2+·OH5[1]HClH2SO4w(HCl)w(H2SO4)=13pH=104150min160~200µm50minCODBOD81.5%80.7%99.1%94%[3][1],,.[J].,1993,12(6):16-18.[2],,.[J]..2001,18(4):20-2.[3],.[J]..1997,25(l):9-11.