TreatmentoftriazophospesticidewastewaterbyFentonreactionLiRongxi1,2,YangChunping1(1.CollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082,China;2.DepartmentofBiologicalEngineeringandEnvironmentalScience,ChangshaCollege,Changsha410003,China)Fenton1,2,1(1.,410082;2.,410003)[]Fenton,FeSO4·7H2O、H2O2、pHCOD,,。:(500mL)pH4、FeSO4·7H2O2.5g、30%H2O237.5mL、90min;。[]Fenton;;;[]X703.1[]B[]1005-829X(2009)03-0065-05Abstract:TreatingtriazophospesticidewastewaterbyFentonreactionhasbeeninvestigated.TheeffectsofkeyfactorsincludingdosesofFeSO4·7H2OandH2O2,pH,andstirringtimeonCODremovalrateareinvestigated.Theoptimumconditionsforthereactionsareconfirmed.ThedegradationofthecombinedwastewaterandworkshopwastewaterfromHunanTianyuChemicalPesticideCo.,Ltd.byFentonreagentisstudied.Theresultsshowthattheoptimumconditionsareasfollows:fortreatingevery500mLcombinedandworkshopwastewater,thepH=4,doseofFeSO4·7H2O=2.5g,anddoseof30%ofH2O2=37.5mL,andstirringtime=90min.Thewaterqualityoftheeffluentcanmeetthenationalstandards.Keywords:Fenton;triazophos;pesticidewastewater;wastewatertreatment[](NCET-05-0701),。(C12H16N3SPO3,O,O--O-(1--1,2,4--3-))-,,《》。,,。COD、、、,〔1-3〕。Fenton,Fe2+H2O2HO·〔1-2,4〕。、、、,,、、〔5-7〕。Photo-Fenton、UV/Fenton〔3,8〕,Fenton,。COD,。Fenton。11.1:COD324229320093IndustrialWaterTreatmentVol.29No.3Mar.,200965mg/L,pH6.5;COD7154mg/L、COD3418.2mg/L、pH6。:30%H2O2,,;FeSO4·7H2O,,;H2SO4,,。:MS-3COD,;,。1.2。500mL1000mL,H2O2FeSO4·7H2O,H2SO4pH,,。30min,COD。COD。Fenton,Fenton,。22.1COD2.1.1pH500mL2.5gFeSO4·7H2O50mL30%H2O2,6mol/LH2SO4pH,30min,COD,pHCOD1。Fenton,pH,COD,pH4。pHH2O2,HO·;pHFe3+Fe2+。pH4,COD,pH4。2.1.2FeSO4·7H2O500mL50mL30%H2O2,6mol/LH2SO4pH4,FeSO4·7H2OCOD,2。2,FeSO4·7H2O,CODFeSO4·7H2O,1.25g,FeSO4·7H2O,COD。Fe2+,HO·,,。FeSO4·7H2O1.25g。2.1.3H2O2500mL4,1.25gFeSO4·7H2O,pH4,25.0、37.5、50.0、62.5mL30%H2O2,H2O2COD,3。3,H2O250mL,COD。H2O2,HO·H2O2;H2O2,504540353002468pHCOD/%1pHCOD2FeSO4·7H2OCOD50403020100123FeSO4·7H2O/gCOD/%50403020100203040506070H2O2/mLCOD/%3H2O2COD2009-03,29(3)66H2O2,Fe2+Fe3+,Fe3+,H2O2,HO·,H2O2COD。50mL30%H2O2500mL。2.1.4,COD。500mL1.25gFeSO4·7H2O50mL30%H2O2,6mol/LH2SO4pH4,,COD,COD1。,COD,90min,COD96%,COD200mg/L,《》(GB8978—1996)。,90min。,(500mL):pH4、FeSO4·7H2O1.25g、30%H2O250mL、90min。1~31,pH、FeSO4·7H2O、H2O2、,1~3COD50%,COD96%(1)。,Fenton,,。2.2,Fenton。,Fenton,,COD。2.2.1COD500mL4,2.5gFeSO4·7H2O,17.5、27.5、37.5、47.5mL30%H2O2,pH4,90minCOD,H2O2,4。H2O2,COD,H2O237.5mL,COD85.4%,H2O237.5mL。500mL37.5mL30%H2O2,pH4,30min,FeSO4·7H2OCOD,5。FeSO4·7H2O,COD,2.5gCOD85.2%,FeSO4·7H2O2.5g。500mL2.5gFeSO4·7H2O37.5mL30%H2O2,pH4,,COD。,COD,90min,COD85.4%,COD499mg/L。,,(500mL):pH4、FeSO4·7H2O2.5g/L、30%H2O237.5mL、1COD/min306090COD/(mg·L-1)1783.1518.7119.9COD/%45.084.096.31008060402005101520FeSO4·7H2O/gCOD/%5FeSO4·7H2OCOD2COD/min306090COD/(mg·L-1)1825.31418.6499.0COD/%46.658.585.4,:Fenton2009-03,29(3)1008060402001020304050H2O2/mLCOD/%4H2O2COD673COD/min306090COD/(mg·L-1)59901598912COD/%16.2777.6687.252009-03,29(3)90min。2.2.2COD500mL,FeSO4·7H2O2.5g,30%H2O217.5、27.5、37.5、47.5mL,pH4,90min,COD,H2O2COD,6。H2O2,COD,37.5mL87.25%,47.5mL87.31%,。,37.5mLH2O2。500mL,37.5mL30%H2O2,1.0、2.5、7.5、15.5gFeSO4·7H2O,90min,FeSO4·7H2OCOD,7。FeSO4·7H2O,COD,4COD86.58%、87.25%、84.41%、76.75%。Fe2+。Fe2+,,,;Fe2+,Fe2+H2O2,Fe3+,。,2.5g500mLFeSO4·7H2O。500mL2.5gFeSO4·7H2O37.5mL30%H2O2,,CODCOD,3。,COD,90min,COD87.25%,COD1000mg/L,《》(GB8978—1996)。,,(500mL):pH4、FeSO4·7H2O2.5g/L、30%H2O237.5mL、90min。,COD,,。,,FeSO4·7H2O,H2O2。KundeLin〔3〕,-Fenton,UV/Fenton:50mmol/LH2O2,0.3mmol/LFeSO4·7H2OpH3.0,COD95.2%。UV/Fenton〔8〕,Fe2+,H2O2,[Fe2+]∶[H2O2]1∶20COD90%。UV/FentonpH5~7COD〔8〕,-FentonpH4。,-Fenton。,,Fenton,、、。3,Fenton(500mL):pH4、FeSO4·7H2O1.25g、30%H2O250mL、90min,COD96%。Fenton,。[][1]ChironS,Fernandez-AlbaA,RodriguezA,etal.Pesticidechemi-caloxidation:state-of-the-art[J].WaterResearch,2000,34(2):366-1008060401020304050H2O2/mLCOD/%6H2O2COD9080700481216FeSO4·7H2O/gCOD/%7FeSO4·7H2OCOD68[](1966—),,。:13755053095,E-mail:lirongxi1966@yahoo.com。[]2008-11-13()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,:Fenton2009-03,29(3)2000,23(1):93-106.[7]KuypersMMM,SliekersAO,LavikG,etal.Anaerobicammo-niumoxidationbyanammoxbacteriaintheBlackSea[J].Nature,2003,422(6932):608-611.[8]ChamchoiN,NitisoravutS.Anammoxenrichmentfromdifferentconventionalsludges[J].Chemosphere,2007,66(11):2225-2232.[9]SchalkJ,VriesSD,KuenenJG,etal.Involvementofanovelhy-droxylamineoxidoreductaseinanaerobicammoniumoxidation[J].Biochemistry,2000,39(18):5405-5412.[10]StrousM,PelletierE,MangenotS,etal.Decipheringtheevolu-tionandmetabolismofananammoxbacteriumfromacommunitygenome[J].Nature,2006,440(7085):790-794.[11]KartalB,KuypersMMM,LavikG,etal.Anammoxbacteriadisguisedasdenitrifiers:nitratereductiontodinitrogengasvianitriteandammo-nium[J].EnvironmentalMicrobiology,2007,9(3):635-642.[12]GaliA,DostaJ,vanLoosdrechtMCM,etal.Twowaystoachieveananammoxinfluentfromrealrejectwatertreatmentatlab-scale:PartialSBRnitrificationandSHARONprocess[J].ProcessBiochemistry,2007,42(4):715-720.[13]MaurerM,SchweglerP,LarsenTA.Nutrientsinurine:energet-icaspectsofremovalandrecovery[J].WaterScienceandTechn