Fenton氧化混凝法预处理噻烷噻唑制药废水的研究聂超

Fenton－/12133311.1000832.1000373.100084Fenton。H2O2100mL/L6hpH2～3FeSO4·7H2OH2O21∶51∶6FeSO4·7H2O49.06g/L40.88g/L。40mL/LCaOH220g/LpH7。2COD15000mg/L/85%。FentonＲESEAＲCHONPＲETＲEATMENTBYFENTONANDCOAGULATIONFOＲ25-DIHYDＲOXY-DITHIANE/2-AMINO-5-NITＲO-THIAZOLEPHAＲMACEUTICALWASTEWATEＲNieChao1LiuShumo2MaWeifang13Guohao3HanDongmei3SuFangfang11.SchoolofEnvironmentalScienceandTechnologyBeijingForestryUniversityBeijing100083China2.BeijingChina-UnionEngineeringCo．LtdBeijing100037China3.BeijingAssociationofSustainableDevelopmentBeijing100084ChinaAbstractDithianewastewaterandthiazolewastewaterdischargedfromapharmaceuticalfactorywerepretreatedbyusingFentonoxidationandcoagulation．TheresultsshowedthatdithianewastewatershouldbeuseFentonoxidationfirstlyandthencoagulationthiazolewastewatershouldbeusecoagulationfirstlyandthenFentonoxidation．TheoptimalconditionswereasfollowsdosageofH2O2100mL/Lthereactionratiotime6hpH2～3themolarratioofFeSO4·7H2OandH2O21∶5and1∶6respectivelydosageofFeSO4·7H2O49.06g/Land40.88g/L．Thebestdosageofliquidferricchloridewas40mL/Linthecoagulationpretreatmentofdithianewastewater．ThebestdosageofcoagulationCaOH2was20g/LinthecoagulationtreatmentafterFentonoxidationforthiazolewastewatertreatmentwhileusingCaOH2tocontrolpHtoabout7inthecoagulation．CODremovalrateweremorethan85%byusingcombinatedtechnologiesindithiane/thiazolepharmaceuticalwastewaterwhentheinfluentCODwasaround15000mg/L．KeywordsFentonoxidationcoagulationpharmaceuticalwastewater2014－10－09025-14-、2--5-、。、、pH、、。Fenton。H2O2Fe2+·OH2.8V1。Fenton93201533、、2-5。Fenton2Fenton、、COD。11.11。21。1pH/NTUρCOD/mg·L－1/mS·cm－1TDS/mg·L－1254nm25-14-2.4090.27880192.296100＞3.52--5-8.5217714700130.465200＞3.5225-14-2--5-CASNo．/℃25--14-25-dihydroxy-dithianeC4H8O2S240018-26-63.9g/L20℃130～1452--5-2-amino-5-nitro-thiazolC3H3N3O2S121-66-410g/L20℃196～204125-14-2--5-2。1.2100mL500mLpHFenton30%H2O2FeSO4·7H2OCOD、pH。2pHpHFentonpH2.0～4.06。25--14-pH2.40Fenton。2--5-pH8.52Fenton。22.1H2O2COD725--14-1FeSO4·7H2O6g/L。2--5-2FentonFeSO4·7H2O10g/L4hH2O2COD2。2H2O22H2O2100mL/L25--14-COD34%H2O2。H2O2H2O2CODH2O2H2O2COD8。2--5-CODH2O2100mL/L。pHpHpH。04201533。25--14-S—OH。2--5-N、SN—NH2N、S—NO2。。H2O2COD2。2.225--14-FeSO4·7H2O6g/LH2O2100mL/L3。33hH2O2COD4hCOD6h3COD70%24h78.0%6h。2.3nFeSO4·7H2O∶nH2O225--14-H2O2100mL/L6hFeSO4·7H2O。2--5-40mL/LH2O2100mL/L6hFeSO4·7H2O4。a—25--14-b—2--5-。4425--14-nFeSO4·7H2O∶nH2O21∶5COD78.2%。Fe2+/H2O2Fe2+H2O2·OH。Fe2+HO·H2O2。nFeSO4·7H2O∶nH2O2=1∶5FeSO4·7H2O49.06g/L。nFeSO4·7H2O∶nH2O21∶6COD76.3%FeSO4·7H2O40.88g/L。2.42.4.1H2O2100mL/L14201533nFeSO4·7H2O∶nH2O2=1∶56h20g/LCaOH2pHpH2.576.32。。1h。17.6NTUCOD1120mg/L85.8%。CaOH2pHpH。2.4.21hCOD、pH5。5pHCOD5pHCOD40mL/L48.5%pH5.26CODpH。PAFCCODpH40mL/L。312-5-14-H2O2100mL/L6hFentonnFeSO4·7H2O∶nH2O2=1∶5FeSO4·7H2O49.06g/LCaOH2pH20g/L。22--5-40mL/LH2O2100mL/L6hFentonnFeSO4·7H2O∶nH2O2=1∶6FeSO4·7H2O40.88g/L。3－COD。1．FentonJ．200426128-30.2．FentonJ．201142117-20.3．Fenton/J．200627112201-2205.4．Fenton－J．200424439-41.5．FentonJ．2008393768-71.6．FentonJ．200828105-9.7．FentonJ．201213131-34.8．CODCrJ．2012373148-151.1991－。[e-mail]。[e-mail]24201533