Fenton氧化深度处理高浓度造纸废水的中试实验

81Vol．8No．120141ChineseJournalofEnvironmentalEngineeringJan．2014Fenton122221．3000722．065001FentonFentonCODFentonCOD90%COD100mg/L61～1．2kg/tFentonCOD96%COD60mg/L81．15～1．4kg/tFenton。FentonX793A1673-9108201401-0215-07Apilotstudyonadvancedtreatmentofhigh-concentrationpapermakingwastewaterbyFentonoxidationprocessJiaYongqiang12LiWei2JiaLizhuang2YanDongjie21．SchoolofChemicalEngineeringandTechnologyTianjinUniversityTianjin300072China2．StateKeyLaboratoryofcoal-basedlowCarbonEnergyENNLangfang065001ChinaAbstractApilotexperimentwascarriedouttodeeplytreathigh-concentrationpapermakingwastewaterviaFentonoxidationprocess．TheCODremovaladditiondosageofeachchemicaldosagecostandsludgeemis-sionswerediscussedaswellasevaluationoftheexperimentoperationstability．TheresultsshowthatCODre-movalisupto90%afterprimaryFentonoxidationwitheffluentCOD100mg/Landitssludgeemissionsis1～1．2kg/tonwastewaterwithcorrespondingdosagecostof6yuanaftersecondaryFentonoxidationCODremovalreaches96%witheffluentCOD＜60mg/Landitssludgeemissionsis1．15～1．4kg/tonwastewaterwithcorre-spondingdosagecostof8yuan．AstheresultsshowitdemonstratesFentonoxidationprocess＇sfeasibilityoftrea-tinghigh-concentrationpapermakingwastewaterwithastrictereffluentstandard．KeywordsFentonoxidationprocessadvancedtreatmentpapermakingwastewater2011013001A2012－12－252013－02－041981～。[e-mail]。CPsPCP1。2～72。3。。45Fenton6-89101112。FentonFentonCOD。11．18+COD1000～1500mg/LSS150～200mg/LpH7～8300。1．2CODFenton1。1FentonFig．1ProcessflowofprimaryandsecondaryFentonoxidationpHFenton1314pH1PAM2。FentonFenton。FentonpH2。1FentonFeSO4H2O2。pH1PAM2。1．3。Fenton。、Fenton、pH、Fen-tonpHpHpH。FentonFenton。1．418%90%30%32%1‰PAM10%5%18%1．51．5．1Fenton1m3/hpH5.6-5．8。30%0．8-1．5L/hpHpH32%pH11‰PAM2。1．5．2Fenton1m3/hpH5.6～5．8。30%0．8～1．5L/h0．5～1．0L/hpH2pH32%pHFenton10%Fen-ton121‰PAM12。1．6pHpHCOD6121Fenton15。22．1Fenton2．1．1COD。200L18%180L35、40、4550kgpH5．7COD1L/hpHpH7．01‰PAM3L/h。23030s。22CODCOD2。180LCOD45kgCOD90%50kgCOD180L45kgFenton。2CODFig．2ＲelationbetweenCODremovalefficiencyandferroussulfatedosage2．1．2COD180L18%45kgpH5．70．8、1．0、1．21．4L/hCOD。2．1．1。COD3。1L/hCODCOD。3CODFig．3ＲelationbetweenCODremovalefficiencyandH2O2dosage2．1．3pHpH2CODpH2CODpHpH7．0COD150～180mg/LpHpH6．0COD110～130mg/LpHpH5．2COD90～110mg/LpHpH5．0COD4。pHpH。FentonFentonpHpHCOD。pH24pHCODFig．4ＲelationbetweenCODandofpH7128。2．1．42Fenton23020s22020s1520s。2．1．55dFenton5d1。5d1m3/hCOD1100～1300mg/LpHCOD100～140mg/LFentonCOD88%2COD80～110mg/LPAMCODCOD90%。FentonCOD60mg/LFenton。2．1．6Fenton5d2。20～22LH2O21．0～1．1LNaOH1．2～1．4LPAM3．0～4．0L60．2～0.24m3SS5g/L1～1．2kg。1FentonTable1PilotdataofprimaryFentonoxidationm3/hCODmg/LpH2COD%111∶001．05124812196．829216∶001．11181123．510591211∶001．02119095．6685．369316∶001．01120989292311∶001．051058132．121109016∶000．991246100．281．0893411∶001．021211142．19133．218916∶001．051089104．79591511∶001．021224101．24859316∶001．051260130．4110．61912Fenton、Table2PilotadditiondosagedosagecostandsludgeemissionsofprimaryFentonoxidationL/hH2O2NaOHPAM/t2m3/h111∶00211．141．354．06．600．2216∶0021．91．11．33．26．590．19211∶0019．251．11．13．56．020．2016∶0019．261．10．953．85．690．22311∶0022．031．01．23．56．470．2216∶0018．891．11．413．26．000．20411∶0021．81．01．33．06．340．2216∶0023．71．01．353．56．680．20511∶0017．81．01．253．25．690．2416∶0019．441．01．353．06．600．22180L18%45kgH2O230%NaOH32%PAM1‰PAM。185/m330%1000/t250/t32%860/tPAM15000/t。8121Fenton2．2Fenton2．2．12pHFentonpH1pHPAM12．1．3pH5．02pH5．211SSFenton。2．2．2Fen-tonCODFentonpH。35Fenton7L/h0．6L/hCODCOD。3Table3Dosageandcorrespondingnumber10%30%16L/h0．4L/h26L/h0．6L/h36L/h0．8L/h47L/h0．6L/h57L/h0．8L/h68L/h0．8L/h5FentonCODFig．5ＲelationbetweenCODremovalefficiencyandferroussulfateandH2O2dosagesFentonCOD60%FentonCOD90%Fenton1Fenton。2．2．312Fenton1211520s23010s12。12020s24010s121。121520s3010s。2．2．45dFenton5d4。1m3/hCOD1100～1400mg/LCOD40～55mg/LCOD96%COD60mg/L。FentonCOD。2．2．5Fenton5d5。20～22LH2O21．0～1．1LH2O20．6～0．7LFe-SO46．5～7LNaOH1．6～2．2LPAM6．5～7L8．00．23～0．28m3SS5g/L1．15～1．4kg。91284FentonTable4PilotdataofprimaryandsecondaryFentonoxidationm3/hCODmg/L12COD%111∶001．051307124409716∶001．0712991094996211∶001．0411599235．59716∶001．1111958343．196311∶001．010487146616∶001．0412059153．496411∶001．02128110348．69616∶001．05137911054．296511∶001．113689549．29616∶001．05137010543975Fenton、Table5PilotadditiondosagedosagecostandsludgeemissionsofprimaryandsecondaryFentonoxidationL/hH2O2H2O2FeSO4NaOHPAM/t1m3/h2m3/h111∶0021．151．00．66．792．227．38．120．220．0716∶0020．511．00．66．662．226．157．840．220．06211∶0019．611．00．76．411．677．437．420．220．0616∶0020．91．00．76．921．676．927．180．220．06311∶0020．11．10．77．181．677．947．950．180．0716∶0019．61．10．757．072．17．058．060．170．06411∶0020．261．10．76．832．226．68．400．170．0616∶0019．71．10．77．052．226．678．070．170．06511∶0022．051．00．76．72．226．797．990．180．0616∶0018．591．00．76．81．786．798．120．180．06180L18%45kgH2O230%FeSO410%NaOH32%PAM1‰PAM。185/m330%1000/t250/t32%860/tPAM15000/t。3FentonCOD。FentonCOD90%COD100mg/L61～1．2kg/tFentonCOD96%COD60mg/L81．15～1．4kg/t。1．．201029153-56PengT．LiZ．J．MiaoA．Y．etal．Ｒesearchapproachofadvancetreatmentofwastewaterfrompapermaking．Pa-perandPaperMaking201029153-56inChinese2．．19