H2O2法预处理石油化工废水及其动力学研究

O3/H2O2*彭人勇李海刚266042O3/H2O2pH、、O3H2O2COD。pH10.0050minO34g/hH2O230mmol/LCOD、76.78%、96.79%94.44%B/C0.0670.380。。O3/H2O2CODDOI10.13205/j．hjgc．201407008STUDYONPＲETＲEATMENTOFPETＲOCHEMICALWASTEWATEＲUSINGO3/H2O2SYSTEMANDITSSYNEＲGETICKINETICSPengＲenyongLiHaigangCollegeofEnvironmentandSafetyEngineeringQingdaoUniversityofScienceandTechnologyQingdao266042ChinaAbstractThepetrochemicalwastewaterfromoilrefineryhasbeenpretreatedbyO3/H2O2process．TheinfluentialfactorssuchaspHreactiontimeozoneflowanddosageofH2O2ontheremovalrateofCODwereinvestigatedthroughorthogonalexperiment．TheresultsofsinglefactoroptimalexperimentsshowedthattheremovalrateofCODvolatilephenolandchromawereupto76.78%96.79%and94.44%respectivelywhenpHreactiontimeozoneflowanddosageofH2O2were10.0040min4g/hand30mmol/Lrespectively．B/Cwentupfrom0.067to0.380．Thebiodegradabilityhasincreasedobviouslywhichcouldmeettherequirementsofthefollow-upbiochemicaltreatment．AtthesametimethekineticstudyshowedthattheremovalofCODwasinaccordancewiththefirst-orderkineticmodel．KeywordsO3/H2O2petrochemicalwastewaterCODhydroxylradicalkinetics*2009ZＲB019K+1。2013－09－050COD。、、、、Fenton1-2。。O3/H2O2·OH、CO2H2O。COD3-4。、、。、ρCOD7000～8000mg/LρBOD5/ρCOD＜0.1。O3/H2O2CODO3/H2O2、。11.1废水水质及工艺流程23EnvironmentalEngineering15～20t/h。。COD、1。1Table1ＲawwaterqualityofpetrochemicalwastewaterρCOD/mg·L－1ρBOD5/mg·L－1ρTOC/mg·L－1ρ/mg·L－1ρNH3－N/mg·L－1pH/7790520228011944954.85180O3/H2O21。1O3/H2O2Fig．1ProcessflowandexperimentalequipmentofO3/H2O21.2实验方法O3。H2O21L。pH、、H2O2O3/H2O2CODCOD。1.3分析方法［5］pHCODBOD5BODTrakⅡNH3－N4-TOCTOC。22.1正交实验结果O3/H2O2pH、、O3H2O2。L934COD2。2Table2OrthogonaltestdesignpH/minO3/g·h－1H2O2/mmol·L－1COD/%131011014.33233033039.48335055035.21471035025.87573051035.59675013042.277111053041.818113015046.389115031056.73k129.67327.33734.32735.550k234.57740.48340.69341.187k348.30744.73737.53735.82018.63417.4006.3665.6372pH＞＞O3＞H2O2。pH=1150minO33g/hH2O230mmol/L。。2.2单因素优化实验结果2.2.1pHO33g/hH2O230mmol/LpH8、9、10、111250minCOD2。2pHCODFig．2EffectofpHvalueonCODremovalrates2CODpHpH＞10COD。O3H2O2HO2－HO2－·OHCOD6。pH10COD69.74%pH12COD69.92%。pH＞10·OH33WaterPollutionControl。pHpH12pH9.68pH10pH7.33。pH。pH10。2.2.2O33g/hH2O230mmol/LpH102030405060minCOD3。3CODFig．3EffectofreactivetimeonCODremovalrates3COD50minCOD70.21%COD。COD·OH·OH7CO2pH·OH。50min。2.2.3O3pH10H2O230mmol/LO312345g/h50minCOD4。4O3CODFig．4EffectofozoneflowonCODremovalrates4O3COD。O34g/hCOD76.30%O3COD。O3·OHCOD。O3O3O3·OHCOD8。O34g/h。2.2.4H2O2O34g/hpH10H2O21020304050mmol/L50minCOD5。5H2O2CODFig．5EffectofdosageofH2O2onCODremovalrates5H2O2CODH2O230mmol/LCOD76.78%H2O2。9H2O2HO－2O3·OHH2O2·OHCODH2O2·OH·OH·OHCOD。H2O230mmol/L。2.3O3/H2O2氧化法处理石化废水的反应动力学研究pH10O34g/hH2O230mmol/LO3/H2O2COD8000mg/L－lnCt/C0t6。6－lnCt/C0tFig．6Linearcorrelationof－lnCt/C0andreactivetime43EnvironmentalEngineering6－lnCt/C0t0.99k=0.0283min－1。O3/H2O2COD10。2.4O3/H2O2处理后废水水质变化O3/H2O2pH10O34g/hH2O230mmol/L50min3。3Table3WaterqualityaftertreatingunderthebestconditionsρCOD/mg·L－1ρ/mg·L－1/B/CρNH3－N/mg·L－1pH1808.8238.34100.3839.657.1576.7896.7994.44—91.99—3O3/H2O2B/C。。O3/H2O2。31O3/H2O2pH1050minO34g/hH2O230mmol/L。COD76.78%B/C0.0670.380。2O3/H2O2O3/H2O2COD0.0283min－1。1ShilpiVermaBasheshwarPrasadIndraManiMishra．ThermochemicaltreatmentthermolysisofpetrochemicalwastewaterCODremovalmechanismandflocformationJ．IndustrialandEngineeringChemistryＲesearch20115095352-5359.2．FentonJ．．200936387-90.3．O3/H2O2J．2010301273-76.4SutrasnoKartohardjonoMilasariHerdianaPutriSriFahmiatietal．CombinationofozonationprocessandabsorptionthroughmembranecontactorusingnaturalhotspringwaterasabsorbenttoremoveammoniafromwastewaterJ．JournalofEnvironmentalScienceandEngineering20121428-433.5．M．4．200291-283.6．O3/H2O244－J．20072891998-2002.7．－HJ．201243124-27.8．J．．2012342100-104.9YuYinghuiMaJunHouYanjun．Degradationof24-dichlorophen-oxyaceticacidinwaterbyozonehydrogenperoxideprocessJ．JournalofEnvironmentSciences20061861043-1049.10．J．20047411-13.1962－。櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅[e-mail]ubilizationanddegradationofphenanthreneunderthermophilicconditionsJ．JournalofEnvironmentalQuality20043362015-2025．14．J．2002313-17．15．－J．2008291189-195．16KottermanMJJVisEHFieldJA．SuccessivemineralizationanddetoxificationofbenzoapyrenebythewhiterotfungusBjerkanderasp．strainBOS55andindigenousmicrofloraJ．AppliedandEnvironmentalMicrobiology19986482853-2858．17KirkTKFarrellＲL．Enzymatic“combustion”themicrobialdegradationofligninJ．AnnualＲeviewofMicrobiology198741465-505．18NovotnyCErbanovaPSasekVetal．ExtracellularoxidativeenzymeproductionandPAHremovalinsoilbyexploratorymyceliumofwhiterotfungiJ．Biodegradation1999103159-168．1981－。[e-mail]1977－。[e-mail]1963－。[e-mail]53WaterPollutionControl