电生成Fenton试剂处理工业印染废水的中试研究陈玉峰

:1000-5277(2005)02-0058-04电生成Fenton试剂处理工业印染废水的中试研究陈玉峰1,2,方　熠1,程　尉1,郑　曦1,陈日耀1,陈　震1＊(1.,　350007;2.,　050081)　　:对电生成Fenton试剂处理实际工业印染废水进行了中试型实验,并对其实际的处理费用进行了简单的计算.实验发现:本技术可以有效处理工业印染废水,CODCr去除率在80%以上,脱色率达到95%,处理费用在1.17元/m3,具有很好的实际应用价值和市场前景.:Fenton试剂;印染废水;电解槽:O646　　　:A　:2004-06-25　:(JB02177,JB03138)　:(1978—　),,,.　＊,E-mail:[e-mail]intingandDyeingWastewaterbyElectro-generatedFentonReagentCHENYu-feng1,2,FANGYi1,CHENGWei1,ZHENGXi1,CHENRi-yao1,CHENZhen1＊(1.CollegeofChemistryandMaterialsScience,FujianNormalUniversity,Fuzhou350007,China;2.DepartmentofChemistry,ShijiazhuangVocationalTechnologyinstitute,Shijiazhuang050081,China)Abstract:Acontinuouselectro-generatedFentonreagentelectrobathwasdesigned.Printinganddye-ingwastewaterwastreatedbythissystem.Theexpensesoftreatmentwastewaterwerecalculated.There-sultindicatedthatwasagoodmethodfortreatmentprintinganddyeingwastewater.CODCrremovingratewas80%,anddecolorizationratewas95%.Theexpenseswereabout1.17yuan·m-3.Keywords:Fentonreagent;printinganddyeingwastewater;electrobath,、、、、,,[1]:(1):、、;(2):、、、、;(3)BOD5:,,,,;(4)CODCr:,,,,.,,,,.,、,,,[2-3].,,.1　1,、(1000mg·L-1)、,,20～3021　2()Vol.21　No.220056JournalofFujianNormalUniversity(NaturalScienceEdition)Jun.20051.;2.;3.;4,5.;6.;7.;8.;9.;10.图1　电解槽示意图t·d-1.[4]..2　2.1　工艺流程简介Fenton[5],、、、、(2),1.2.2　调节池,pH9,Fenton,,pH4～5.,.,,[6].图2　电生成Fenton试剂的废水处理流程图2.3　电解槽,.,,.:(1)、.,,、、,.;(2),,PVC;(3)、;(4),,,,[7-8].2.4　过滤池,.pH,Fe2+、Fe3+Fe(OH)3.Fe(OH)3;,Fe3+.[9].592:Fenton表1　电生成Fenton试剂反应处理印染废水主要操作顺序pH4～5()①pH8～8.5②③①②2.5　实际运行结果,2.2CODCrBOD580%,95%,pH.表2　实验检测结果GB6920-86GB11914-87GB7488-87GB11903-89GB7466-87pHρCODCr/(mg·L-1)ρBOD5/(mg·L-1)//(mg·L-1)129.279.261127109732331525250.0240.023346.956.932092075957550.0040.0043　3.1　电生成Fenton体系的电耗,,W=ItU1000Q,W(kW·h·m-3),I(A),t(h),U(V),Qt(m3).:2V,450A,1h,1m3,W=450×1×2.01000×1=0.9kW·h·m-3,,、,,0.5kW·h·m-3,1m31.4kW·h·m-3,0.55·(kW·h)-1,0.77·m-3.3.2　支持电解质(Na2SO4),,、、,.60·t-1,75·t-1.1kg·m-3,0.08·m-3.3.3　铁消耗量2000·t-1,,,0.32·m-3.3.4　污泥量0.5～1.0kg·m-3(,Fe(OH)3),.,1.17·m-3.60()214　,Fenton,,:,CODCrBOD580%,95%.1.17·m-3,Fenton.参考文献:[1].、[M].:,1997.1-6.[2]Barrera-DiazC,Urena-NunezF,CamposE,etal..Acombinedelectro-chemical-irradiationtreatmentofhighlycoloredandpollutedindustrialwastewater[J].Radiationphysicsandchemistry,2003,7:1-7.[3]GuidoS,LisaS,RiccardoA,etal..Electrochemicaloxidationoforganicpollutantsatlowelectrolyteconcentrations[J].ElectrochimicaActa,2000,46:373-380.[4].Fenton-Fenton[D].:,2001,6:34-36.[5]CHENZhen,ZHENGXi,CHENRi-yao,etal..Fentonreagentgeneratedinelectrolysiscellanditsusageindegradationanddecolorizationofdyes[J].ChemicalResearchinChineseUniversities,2002,18(1):34-39.[6],,.[M].:,2002.17-25.[7]BockrisJOM,BrianCinwayE,ErnestY,etal..ComprehensiveTreatiseofElectrochemistry,Volume2:Electro-chemicalProcessing[M].NewYork:Plenumpress,1981.345-351.[8].[M].:,1992.277-279.[9].[M].:,2002.73-95.(:)612:Fenton