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12FEnvironmentalScience&Technology3312F201012Vol.33No.12FDec.2010430062。。X703Adoi10.3969/j.issn.1003-6504.2010.12F.0811003-6504(2010)12F-0309-03NewMethodofScrapIronDealingWithP-nitrophenolSimulatedWastewaterandtheResearchofItsMechanismWANGHai-renSHIXing-yang,XUYuQUJun-eFacultyofMaterialsScienceandEngineering,HubeiUniversity,Wuhan430062,ChinaAbstractP-nitrophenolsimulatedwastewaterwaspreparedandthedegradationofitbycopperized-scrapironinconstantcurrentmodewasresearched.Throughthedynamicsimulationresearch,theresultsshowedthat:todealwithp-nitrophenol,thecopperized-ironaspotentialelectrodehasobviouslybettercatalyticoxidationability,comparingwiththepurecopperized-ironinnermini-cellsystem.Thedegradationprocessaccordedwithpseudo-first-orderreactionkineticsequation.TheeffectofCurrentfordegradationefficiencyisrelativelygreater,withtheincreaseofthecurrentdensity,theremovalofp-nitrophenolwasmore.ThemethodofthisusingwasteirontotreatwastewaterhastheconceptofcirculareconomyandeconomicapplicabilityKeywordscopperized-iron;constantcurrentmode;p-NP;degradation2010-07-02(1966-)15071324528whr9999whr@163.com。(P-NP)、、[1]。。、[2][3][4]。[5][5][6][7]。。。、、[8-9]、[10]、[11]、[12]。11.15%NaOH30min、H2SO420min2%2min、、、。331.2CS300400mg/L10mg/L。。1.3,、、、(SCE)2g/LNa2SO4+10mg/L。1.0~2.5V50mV/s。1.4UV-762。pH=7AD1D=(ρ0-ρ)/ρ0×100%D=(A0-At)/A0×100%1ρ0—(mg/L)ρ—(mg/L)A0—At—。22.11pH=7λ400nm。20～25mg/LAC。-。2.2I＝0mAI＝100mA400g/LpH=7、10mg/L10、20、30、40、50、60min5mL-p-NP3。3I＝0mAI＝100mA。。Fe2+。2.3442g/LNa2SO4+10mg/L1.0~2.5V50mV/s。4。、。。2.4100、200、400mA400g/LpH=7、10mg/L10、20、30、40、50、60min5mL-。ln(CA/C0)t5。60minCA=C0e-kt231012Fk-0.0295、-0.0297、-0.0299-0.0297R0.9988。k2CA=C0e0.0297t32.50、100、200、300、400mA400g/LpH=7、250mL、10mg/L6。6。2h95%80%。400mA0.5h90%。Fe2+p-NP。31、、。2。[][1]BhushanB,ChauhanA,SamantaSK,etal.Ki2neticsofbiodegradationofp-nitrophenolbydifferentbacteria[J].BiochemicalandBiophysicalResearchCommunications,2000,27(3):626-630.[2],.[J].,2007(2):26-28.[3],,.[J].,2008,25(3):269-273.[4],,,.[J].2007,30(12):66-69.[5],,,.[J].,1996,13(4):45-50.[6],,.[J].,2000,22(5):32-36.[7],,,./H2O2[J].,2006,26(9):28-30.[8],,.SbSnO2[J].2005,36(2):234-237.[9],,,.[J].,2006,33(3):54-55.[10].+[J].,200834(9):14-16.[11],,.[J].(),2007,30(6):632-636.[12],,.[J].2007,30(12):66-69.311