超声波处理焦化废水影响因素成泽伟

成泽伟　苍大强,100083　　,、、pH、(CODCr)(NH+4-N)、CODCrNH+4-N,.,H2O2Fenton,CODCrNH+4-N,:+Fenton+H2O2FentonH2O2.GC-MS,CODCrNH+4-N.、.　;;;　TF09;X756InfluencefactorsfortreatingcokingwastewaterbyultrasonicwaveCHENGZe-wei,CANGDa-qiangSchoolofMetallurgicalandEcologicalEngineering,UniversityofScienceandTechnologyBeijing,Beijing100083,ChinaABSTRACT　Thetreatmentofcokingwastewaterwasresearchedbyultrasonicwave.Theinfluencesofirradiationtime,ultrasonicpower,initialpHvalueofcokingwastewater,initialconcentrationsofchemicaloxygendemand(CODCr)andammonium(NH+4-N),anddissolvedgasontheremovalofCODCrandNH+4-Nwereinvestigatedsystematically.Theultrasonictreatmentsofcokingwastew-atercombinedwithoxidantswerecomparativelyanalyzed.TheresultsshowthattheultrasonictreatmentcombinedwithH2O2orFentonreagenthadasynergeticeffect,andthentheremovalratesofCODCrandNH+4-Ngreatlyincrease.Theorderofremovalrateisthefollowing:ultrasonictreatment+Fentonultrasonictreatment+H2O2FentonultrasonictreatmentH2O2.AccordingtotheanalysisresultsofGC-MS,theremovalprocessofCODCrandNH+4-Nwaspreliminarystudied.Itisfoundthattheproportionsofnon-biodegradationorganisms,suchasnaphthalene,anthraceneandquinoline,obviouslydecreasedintreatedcokingwastewater.KEYWORDS　cokingwastewater;ultrasonic;chemicaloxygendemand;ammonium:2008-11-30:(1975—),,,,E-mail:[e-mail];(1949—),,,　　、,(NH+4-N)、、、、、、,、,[1],,.,[2-3].,,“”.“”、,[4-5].,,.1　:,(CODCr)3000～4000mg·L-1,NH+4-N50～100mg·L-1,pH8.2～9.0;UG-Ⅲ,20kHz,0～300W;;;LZB-2;PHSJ-3FpH;GC-MS(Thermo3111200911JournalofUniversityofScienceandTechnologyBeijingVol.31No.11Nov.2009DOI:10.13374/j.issn1001-053x.2009.11.038FinniganTraceDSQTraceGC2000).:,,1.0cm..CODCrNH+4-N,.CODCrGB11914—89;NH+4-NGB7478—87.2　2.1　:pH9.0,CODCr3200～3500mg·L-1,NH+4-N65～70mg·L-1.1.(t),CODCrNH+4-N,.,·OH,.,CODCrNH+4-N.,,CODCrNH+4-N,,,CODCrNH+4-N.,,120min.1　CODcrNH+4-NFig.1　EffectofirradiationtimeandultrasonicpowerontheremovalratesofCODCrandNH+4-N　　　(P).1,,,CODCrNH+4-N.,,、、.,,·OH,,CODCrNH+4-N[6].300W.2.2　pHH2SO4NaOHpH1.0～12.0,pH.2.pH6.0～8.0,CODCr,CODCr;NH+4-N,..pH6.0～8.0,,,2　pHCODcrNH+4-NFig.2　EffectofpHvalueontheremovalratesofCODCrandNH+4-N　.,.pH6.08.0,,,,,,CODCr.(NH+4)·1386·　　　　　　　31(NH3·H2O)[7].,NH3,,NH3,[8].2,pH,.pHpH8.0.2.3　,CODCrNH+4-N.3:CODCrNH+4-N,.3　CODCrNH+4-NFig.3　EffectofinitialmassconcentrationontheremovalratesofCODCrandNH+4-N　　　.,,,,.,,,,CODCrNH+4-N.CODCrNH+4-N,,.,CODCrNH+4-N.2.4　,,,4.4:CODCrNH+4-N.1.2L·min-1,,CODCrNH+4-N;1.2L·min-1,CODCrNH+4-N.,,,,.,,,[9].,CODCrNH+4-N4　CODCrNH+4-NFig.4　EffectofdissolvedgasontheremovalratesofCODCrandNH+4-N.,NH+4-NCODCr,NH+4-N.,·OH,CODCrNH+4-N.2.5　,·1387·11:,,,.H2O2Fenton(H2O2Fe2+),CODCrNH+4-N.FentonFeSO40.6mmol,H2O2.H2O2,H2O23∶1060min,5.5:(+)CODCrNH+4-N.:+Fenton+H2O2FentonH2O2.5　CODCrNH+4-NFig.5　EffectofoxidantsontheremovalratesofCODCrandNH+4-N　　　.H2O2,·OH·H·OH·OOH.H2O2,·OH·OOH,CODCrNH+4-N.H2O2·OH·OOH,·OH.H2O2.H2O2+,H2O26.0mmol.FentonFe2+H2O2·OH,Fe3+Fe2+,Fe2+H2O2,·OH[10-12].FeSO40.6mmol,H2O27.2mmol.2.6　,GC-MS,1.,CODCrNH+4-N,.1GC-MS,:※※CO2、H2O;1　Table1　Proportionsoforganisms%+Fenton32.8340.6827.43()7.5011.6614.59()6.441.611.26()5.442.281.9815.398.376.71()24.0613.2416.633.857.147.274.5015.0224.13　　※※※CO2、H2O;※※、NH+4、NO-3※CO2、H2O、N2、NO-3.,1,、,Fenton.NH+4-N,,N2、N2O,NO-2NO-3[13-15].:·1388·　　　　　　　31NH+4+OH-NH3+H2O;2NH3+6·OHN2+6H2O;2NH3+8·OHN2O+7H2O;NH3+8·OHNO-3+5H2O+H+;N2+6·OH2NO-2+2H2O+2H+;N2O+8·OH2NO-3+3H2O+2H+.3　(1)CODCrNH+4-N.、,CODCrNH+4-N;pH6.0～8.0CODCr,NH+4-NpH;CODCrNH+4-N,,;CODCrNH+4-N,.(2)H2O2Fenton,,CODCrNH+4-N.CODCrNH+4-N:+Fenton+H2O2FentonH2O2.(3)GC-MS,、,CODCrNH+4-N,Fenton.CODCrNH+4-N.　　　[1]　RenY,WeiCH,WuCF,etal.Environmentalandbiologicalcharacteristicsofcokingwastewater.ActaSciCircumstantiae,2007,27(7):1094(,,,..,2007,27(7):1094)[2]　HaoHW,ChenYF,WuMS,etal.Sonochemistryofdegrad-ingp-chlorophenolinwaterbyhighfrequencyultrasound.Ultra-sonSonochem,2004,11(1):43[3]　KuY,TuYH,MaCM.Effectofhydrogenperoxideonthede-compositionofmonochlorophenolsbysonolysisinaqueoussolu-tion.WaterRes,2005,39(6):1093[4]　YusufGA.Sonochemistry:environmentalscienceandengineer-ingapplications.IndEngChemRes,2001,40(22):4681[5]　EntezariMH,AbbasH,AliSY.Acombinationofultrasoundandinorganiccatalyst:removalof2-chlorophenolfromaqueoussolution.UltrasonSonochem,2005,12(1):137[6]　ManousakiE,PsillakisE,KalogerakisN,etal.Degradationofsodiumdodecylbenzenesulfonateinwaterbyultrasonicirradia-tion.WaterRes,2004,38(17):3751[7]　TaoMJ,WuXH,LuXH,etal.Removalofammonianitrogeninthelandfillleachatebyultrasonictreatment.JHUSTUrbanSciEd,2005,22(1):70(,,,..:,2005,22(1):70)[8]　WangSL,LiaoL,WangYS,etal.Removalofammonia-nitro-geninlandfillleachatebyultrasoundirradiation.TechEquipEn-vironPollutControl,2006,7(6):110(,,,..,2006,7(6):110)[9]　HuXW,NingP,ChenYB,etal.Ultrasonictechnologyforcokewastewatertreatment.NonferrousMet,2003,55(Suppl1):820(,,,..,2003,55(1):820)[10]　LiZC,HanX,ZhangLX,etal.Applicationofoxidantscou-pledwithultrasonicwavetodegradingorganicsinwastewater.EnvironSciTechnol,2007,30(10):74(,,,..,2007,30(10):74)[11]　WeiXL,ZhangLB,MaXL,etal.Advancedtreatmentofco