电化学氧化法处理模拟黄连素制药废水的研究肖宏康

5　5环境工程学报Vol.5,No.520115ChineseJournalofEnvironmentalEngineeringMay2011肖宏康1,2　肖书虎1　张国芳1,2　宋永会1＊　曾　萍1　邵　红2　李　辉2(1.,100012;2.,110142)　　RuO2/Ti,。KClK2SO42,、pH、COD,;、pH、,COD95%60%,,。　　　　RuO2/Ti　　X703.1　　　A　　　1673-9108(2011)05-0987-05TreatmentofsimulatedberberinewastewaterinelectrochemicalprocessXiaoHongkang1.2　XiaoShuhu1　ZhangGuofang1.2　SongYonghui1　ZengPing1　ShaoHong2　LiHui2(1.DepartmentofUrbanWaterEnvironmentalResearch,ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China;2.CollegeofEnvironmentalandBiologicalEngineering,ShenyangUniversityofChemicalTechnology,Shenyang110142,China)Abstract　ElectrochemicaltreatmentofsimulatedberberinewastewaterwithRuO2/Tielectrodeasanodewasinvestigated.Firstly,thetreatmentefficiencieswerecomparedbyusingKClandK2SO4assupportingelec-trolytesseparately,andthentheeffectsofcurrentintensity,initialpH,electrolyteconcentrationandelectrodedistanceonthedegradationofberberineandCODwerestudiedindetail.Theresultsshowedthattheremovalef-ficienciesweremuchbetterinKClsystemthanK2SO4systemandthemechanismofberberinedegradationwasrelatedtotheelectro-generationofactivechlorine.Meanwhile,theoptimalexperimentalconditionswereobtainedwiththeberberineandCODremovalefficienciesreachingabove95%and60%,respectively.Eventually,theenergycostswereanalyzed.Aboveall,itwasnecessarytoprovidesomescientificbasisforthepracticalapplica-tiononthetreatmentofberberinepharmaceuticalwastewater.Keywords　berberine;pharmaceuticalwastewater;electrochemicalprocess;RuO2/Tianode;activechlo-rine:“”(2008ZX07208-003);(20100470399);(2010KYYW15):2010-01-27;:2010-03-15:(1985～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　,C20H18ClNO4,1。,,。[1],,;,,,[2]。,,[3-4],。“”,,、、、,、、、、[5-11]。,Cl2、HCIO、ClO-O3,,,;、,5、、、,。,、、TiRuO2,,、、pH,。1　Fig.1　Chemicalstructureofberberine1　1.1　、、,2。500mL;10cm×6cm;RuO2/Ti,Ti;AMRFLmodel:LPS302A35V/10A()。pH0.1mol/LHClNaOH,720APLUSBenchtoppH(ThermoOrionCo.USA)。2　Fig.2　Schematicdiagramoflabscaleexperimentaldevice1.2　500mg/L,。500mL,。、pH、,。UV-6100()340nm。COD(CR3200COD,WTWGerman)[12]。2　2.1　KClK2SO42,。,。KClK2SO42。pH8、3A,0.1mol/LKClK2SO4,3。3　2CODFig.3　ComparisonofremovalefficienciesofberberineandCODintwoelectrolytes3,KCl15min95%,90minCOD60%;K2SO4,120min,COD30%10%。,KClCODK2SO4。Cl-,Cl-Cl2(),(1)～(3)[6,10,13]。,。,。2Cl-※Cl2+2e-(1)9885:Cl2+H2O※HOCl+H++Cl-(2)HOCl※OCl-+H+　(3)4K2SO4KCl200～600nmUV-Vis。,4K2SO4,KCl,290nm,。[14]:290nm,。4　K2SO4KClFig.4　UV-VisspectravariationinK2SO4andKClsystemswithtime2.2　。,。500mg/L(pH8),2cm,0.1mol/LKCl,COD(5)。5,COD。3A,15min95%COD90min60%,2A,COD50%。,2A。5　CODFig.5　EffectofcurrentintensityonberberineandCODremoval2.3　pH,2,pH。pH2～5.5,;pH5.5～9.5,2,pH;pH9.5,[14-16]。pH,pH3.26、5.21、7.02、9.0411.02,6。6,30min,95%pH3～11;COD50%。,CODpH5～7,60%。:HClO,HClOCl2,,COD;ClO-,ClO-98956　pHCODFig.6　EffectofinitialpHonberberineandCODremoval,ClO-[15-16]3。,pHCOD。2.4　KCl,。,COD(7)。7,,。0.15mol/L,10min,0.02mol/L,60min。,。0.1mol/L,COD,0.1mol/L。2.5　2A、pH8、500mg/L,COD,8。8,1～3cmCOD,2cm。,,7　CODFig.7　EffectofchlorideconcentrationonberberineandCODremoval。,,,2cm。8　CODFig.8　EffectofelectrodedistanceonberberineandCODremoval9905:2.6　,。(2A,0.1mol/L,pH7,2cm)。W=(U×I×T×10-3)/V(4):W———(kWh/m3);U———(V);I———(A);T———(h);V———(m3)。30min,95%,8.57kWh/m3,COD;90min,COD60%,25.72kWh/m3。,,。3　　(1),。(2)。,;0.1mol/L,。pH3～11,pH5～7,;1～3cm,,2cm。(3)95%8.57kWh/m3;COD60%25.72kWh/m3。[1],,,..,1982,(1):13-19[2],.-.,2006,29(1):82-83[3],,,..,2001,23(2):87-89[4],,..,2001,21(10):1-4[5],,,..:,2002[6],,,..,2009,3(3):470-474[7]BoW.,XinC.,MaH.Electrochemicaloxidationofre-fractoryorganicsinthecokingwastewaterandchemicalox-ygendemandremovalunderextremelymildconditions.Ind.Eng.Chem.Res.,2008,47(21):8478-8483[8],,..,2008,3(39):59-61[9]RitaF.Y.,Yu-MingZ.,NanayakkaraN.K.G.,etal.Electrochemicalremovalofrhodamine6GbyusingRuO2coatedTiDSA.AppliedChemistry,2009,48(16):7466-7473[10]ChiangL.C.,ChangJ.E.,WenT.Indirectoxidationeffectinelectrochemicaloxidationtreatmentoflandfillleachate.WaterRes.,1995,29(2):671-678[11]TranL.H.,DroguiP.,MercierG.Electrochemicaldeg-radationofpolycyclicaromatichydrocarbonsincreosotesolutionusingrutheniumoxideontitaniumexpandedmeshanode.J.Hazard.Mater.,2009,164(2-3):1118-1129[12].(4).:,2002[13]CossuR.,PolcaroA.M.,LavagnoloM.C.,etal.E-lectro-chemicaltreatmentoflandfillleachate:OxidationatTi/PbO2andTi/SnO2anodes.Environ.Sci.Technol.,2004,32(22):3570-3573[14]XiaoS.,QuJ.,ZhaoX.,etal.ElectrochemicalprocesscombinedwithUVlightirradiationforsynergisticdegrada-tionofammoniainchloridecontainingsolutions.WaterRes.,2009,43(5):1432-1440[15],,..(),2008,31(2):229-233[16]KimK.W.,KimY.J.,KimI.Electrochemicalconver-sioncharacteristicsofammoniatonitrogen.WaterRes.,2006,40(7):1431-1441991