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VC(,100084)Ti2Ce2BiCuO/Al2O3,pHVC:COD23%,BOD/COD0.170.6CuO/Al2O3,Ti2Ce2BiTi2Ce2BiVC,150250,;1.4,48MPa,VCVC:Ti2Ce2Bi,200,315MPa,5.5MPa,60minVCResearchoncatalyticwetairoxidationtreatingpharmaceuticalwastewaterofVCproductionJiangZhan2peng,YangHong2wei,TanYa2jun,ZhuWan2peng(DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:Ti2Ce2BiandCuO/Al2O3arechosenascatalystforwetairoxidation(WAO)processtreatingpharmaceuticalwastewaterofVitaminCproduction.Theeffectsofdiversifiedcatalysts,workingtemperatureandpressureandtheinitialpHofthetreatedwastewaterareinvestigated.TheexperimentalresultsshowthatthecatalystimprovedCODremovalby23%andincreasedtheBOD/CODratiofrom0.17tomorethan0.6.AlthoughtheCuO/Al2O3seemssostrippingwhiletheTi2Ce2Biworksmuchstably.UnderTi2Ce2Bicatalyzingatreactiontemperatureinrangeof150250,thepollutantremovalofwastewaterinWAOprocessisproportionaltothetemperature.Underconditionwhentheoxygensupplyisexcess1.4timesofthetheoreticaloxygendemandandthesystematictotalpressureisatrangeof48MPa,theWAOtreatmentofVCwastewaterissteady,freetotheoxygenandpressure.FinallythesuitableworkingconditionofWAOprocesstreatingVCwastewaterisconfirmedascatalyst:Ti2Ce2Bi,reactiontemperature:200,partialpressureofoxygen:3.5MPa,systematictotalpressure:5.5MPaandreactiontime:60min.Keywords:PharmaceuticalwastewaterofVCproduction;Catalyticwetairoxidation;Reactiontemperature;Reactionpressure863(2002AA601260)0VCVC(C6H7O4Na),COD10mg/L,,,,COD,,(WAO)Zimmermann[1]Vol130No13200441转载:(1),,(2),;(3)(),,,(4),,,,,(5)(6),,,,,CuO/Al2O3Ti2Ce2Bi,[2]CuO/Al2O3CuO6%,Ti2Ce2Bi,15015VC,1015m3/d,COD83000mg/L,1600,pH=4,,CuO/Al2O3(10g/L)Ti2Ce2Bi(8g/L)CODTL1ACOD,721,BOD,pH2pHVC211Ti2Ce2BiCuO/Al2O3:200,pH=4,2MPa,315MPa,1h22VC2,Ti2Ce2Bi,1hCOD79%,23%CuO/Al2O3,Ti2Ce2Bi,CuO/Al2O360minTi,Ce,Bi,Cu,11,Ti2Ce2BiTi,CeBi42Vol130No132004中国科技论文在线[3]2/25100150200250300320335/mg/L190145195320565104013251585:015MPa2,100,;150,,,Ti2Ce2Bi,:pH=4,315MPa,150250,VC,44VC4,150250,VC,,,,,,,[4]260,3,200,,BOD/COD016,VC,200213,,,,,,Vol130No13200443中国科技论文在线[5],[6],COD,111114,,315MPa,1142,,,48MPa,COD,214pHpH,pH:200,315MPa,100mL55pHVC5,pHCOD,(pH1215)3(1)VC,Ti2Ce2BiCuO/Al2O3,COD23%,BOD/COD0117016(2),CuO/Al2O3,,,VC,Ti2Ce2Bi(3)Ti2Ce2BiVC,150250,;114,48MPa,VC(4)VC:Ti2Ce2Bi,200,315MPa,515MPa,60min1ZimmermannFJ.Newwastedisposalprocess.ChemEng,1958,(6):1171202,,.Ti2Ce.,2002,23(1):54573.:[].:,19974,..,1988,4(3):81885,.2.,1987,7(3):1301346..,1987,7(4):228234:(010)62772987:2003292175m3/d5m3/d21346,24:,22,1414m3/d;,(2400m3)(8);;,21,20;,2400m35km111426,500,4000,47001800m39000,3240,7()44Vol130No132004中国科技论文在线