高锰酸钾及高铁酸钾预氧化及Al13对低温低浊水的混凝效果

2013-08-021968—。[e-mail]。Al1311221．6401002．100085Al13。PACPACUV254PACpHAl131NTU。pHAl13TU991B1009-0177201402-0065-06EffectofPre-OxidationwithKMnO4＆KFeO4andCoagulationwithAl13forWaterTreatmentinLowTemperatureandTurbidityQiDunzhe1YuLei1XiaoHan2XuHui21．NingdongWaterCo．Ltd．Yinchuan640100China2．StateKeyLaboratoryofEnvironmentalAquaticChemistryＲesearchCenterforEco-EnvironmentalSciencesChineseAcademyofSciencesBeijing100085ChinaAbstractNingdongWaterPlantisfacedtotreatwaterwithlowtemperatureandlowturbidity．Experimentswerecarriedoutandresultswereachievedasfollows1ThebestremovalefficiencyofturbidityandUV254wasobtainedwithaddingKMnO4andKFeO4followedbyaddingPACremovalefficiencybysimultaneousadditionof3reagentswasthenexttheworstremovalefficiencyofturbidityandUV254wasobtainedwithaddingPACfollowedbyadding2potassiumsalts2Therewasanoptimaldosageofthese2potassiumsalts3Pre-oxidationwasbetterunderacidiccondition4PurifiedAl13couldsignificantlydecreaseturbidityaftersedimentation．Keywordslowtemperatureandlowturbiditypre-oxidationpHAl13、、、。。、“”。、1-3。。pH＜7．50FeOH34-8。、、。Fe3+。—56—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．22014April25th2014201433265-70WaterPurificationTechnology。PACAlb。PACAlb。Al13pH7．7。11．11。1Tab．1WaterQualityofYellowＲiver/NTUTOC/mg·L－1UV254CODMn/mg·L－12．8～3．31．78～1．970．045～0．0482．48～2．62PACAlCl324hPAC。PAC、24h25．0mL4．0hAl13。FerronAl132。2FerronAl13Tab．2CharacterizationofAl13byFerronAlaAlbAlc/%3．1894．831．991．2。2．5m3/h1。3．0m、0．60m、0．60m。GT3。3Tab．3DesignParametersofPilotTestG/s－1500．0071．8132．5211．09T/min0．603．855．1546．48/m·min－1—0．470．350．28GT1800016587100574285。1。1Fig．1SchematicofExperimentalEquipment1．3200r/min90s40r/min10min30min2cm。22．1A0．40mg/L0．80g/L、0．50mg/L、1．00g/L300r/min5minPAC。B、PAC。CPAC5min、。、、。。Mn、Fe。UV2542、3。—66—．Al13Vol．33No．220142UV254Fig．2EffectsofDifferentDosageandDosingMethodonＲemovalofTurbidityandUV254usingPotassiumFerrate3UV254Fig．3EffectsofDifferentDosageandDosingMethodonＲemovalofTurbidityandUV254usingPotassiumPermanganatePACPACUV254PAC。PAC。PACPACPAC。2．2、300r/min2、5、10、20、3040minPAC16．0mg/L0．80mg/L0．50mg/L4、5。4Fig．4EffectsofPre-OxidationTimeonCoagulationPerformanceusingPotassiumFerrate5Fig．5EffectsofPre-OxidationTimeonCoagulationPerformanceusingPotassiumPermanganate—76—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．22014April25th20144、5510min。CC、CO—COO—。10min。2．310min。0、0．20、0．60、0．80、1．001．20mg/LPAC8．0、10．0、12．0、14．0、16．018．0mg/L6。6Fig．6EffectsofDosageofPotassiumFerrateonＲemovalofTurbidity60．80mg/L。2．410min。0、0．20、0．50、0．80、1．001．20mg/LPAC8．0、10．0、12．0、14．0、16．018．0mg/L7。70．50mg/L。7Fig．7EffectsofDosageofPotassiumPermanganateonＲemovalofTurbidity2．5pH、61LpH5．0、6．0、7．0、8．0、9．010．00．80mg/L、0．50mg/L300r/min10minpH16．0mg/LPAC8、9。8pHFig．8EffectsofpHonPre-OxidationusingPotassiumFerratepHpHpH。—86—．Al13Vol．33No．220149pHFig．9EffectsofpHonPre-OxidationusingPotassiumPermanganate2．6Al13pHPACAl138．0、10．0、12．0、14．0、16．018．0mg/L。10、11。10PACAl13Fig．10ＲemovalEfficiencypfTurbidityUsingPACandAl13PACAl13UV254Al13PACAlb。11PACAl13UV254Fig．11ＲemovalEfficiencyofUV254usingPACandAl132．7、0．80、0．50mg/LPAC8．0、10．0、12．0、14．0、16．018．0mg/L。3h12。12Fig．12ＲesultsofPilotTest31、PACUV254PAC。—96—WATEＲPUＲIFICATIONTECHNOLOGYVol．33No．22014April25th20142、5～10min。、。pH。3Al13。4。1KimJSChungYShinDCetal．ChlorinationbyproductsinsurfacewatertreatmentprocessJ．Desalination200315111-92ChenJJYehHHTsengIC．Potassiumpermanganateasanalternationpre-oxidantforenhancingalgalcoagulationpilotandbenchscalestudiesJ．EnvironmentalTechnology2008297721-729．3ChenJJYehHHTsengIC．EffectofozoneandpermanganateonalgaecoagulationremovalpilotandbenchscaletestsJ．Chemosphere2009746840-846．4WilliamSMJamesＲCMichaelDJ．ＲemovalofＲadionuclidesWastewatersUtilizingPotassiumFerrateJ．WaterEnvironmentＲesearch19956761007-1008．5．———J．199414329-30．6LucaDSJCantelliMLucaDMA．FerratevstraditionalcoagulantsinthetreatmentofcombinedindustrialwastesJ．WaterScience＆Technology1992269-112077-2080．7．J．19971451-3．8DeLucaSJIdleCNChaoAC．QualityImprovementofBiosolidsbyFerrateOxidationofoffensiveodourCompoundsJ．WaterScience＆Technology．1996333119-130．644．J．200524262-65．5．J．200726573-75．6．J．20137357-59．7．J．20123712102-104．8．J．20094111250-252．9．、、、、J．201127521-23．10．J．2011236144-145．11．J．2010283416-419．12．F－、C1－、Br－、NO－2、SO2－4J．200219612-14．13．J．200738520-23．14．J．201131845-47．15．J．200020710-12．16．D．2010．17．D．2009．18．J．201131562-66．19．M．2002．20．HAHCODJ．20061688-9．—07—．Al13Vol．33No．22014