地下水中锰对接触氧化滤池快速启动的影响朱来胜

710055KMnO4Fe2+、Mn2+NH+4－N、Fe2+Mn2+。Mn2+KMnO42mg/LMn2+0、12mg/LNH+4－N、Fe2+Mn2+KMnO4。Mn2+2mg/L15dMn2+27d44．4%20d1．5mg/LNH+4－N、1mg/LFe2+2mg/LMn2+。6～10m/hFe2+、NH+4－NMn2+Fe2+、NH+4－NMn2+1、22mg/L。＞2mg/L。TU991[e-mail]eseConcentrationonStart-upofContactOxidationFilterinGroundwaterTreatmentZHULai-shengHUANGTing-linCHENGYaYANGYan-fengZHAONanSchoolofEnvironmentalandMunicipalEngineeringXi’anUniversityofArchitectureandTechnologyXi’an710055ChinaAbstractThequickstart-upofthepilot-scalecatalyticoxidationfilterwasconductedusingchem-icaloxidationprocessthatwasKMnO4oxidizedFe2+Mn2+withtheformationofFe－MnoxidesandthenFe－Mnoxidesdepositedonthesurfaceofquartzsandtoformaco-oxidefilterfilmwhichcouldsimultaneousremoveNH+4－NFe2+andMn2+bychemicalaction．TheinfluentMn2+of2mg/LwasoxidizedbyKMnO4attheinitialstageofthestart-upoperationandtheeffectofsurplusconcentrationwasstudied．Threedifferentmethodstheconcentrationof01and2mg/LMn2+surpluswereemployedtooptimizethestart-upprocessforsimultaneousremovalofNH+4－NFe2+andMn2+fromgroundwater．Theeffectoffiltrationrateontheoperationefficiencyofthefilterswasalsoinvestigated．Atthelaterstageofthestart-upoperationtheKMnO4wouldnotbeaddedintofilter．Theresultsshowedthatthestart-upperiodofthefilterwiththeconcentrationsof2mg/LsurplusMn2+15dwasshortenby44．4%com-·6·3321201711CHINAWATEＲ＆WASTEWATEＲVol．33No．21Nov．2017paredtotheconcentrationsof0mg/LsurplusMn2+27d．WhentheinfluentNH+4－NFe2+andMn2+concentrationwas1．5mg/L1mg/Land2mg/Ltheeffluentcouldmeetthestandardofthewa-terqualitysimultaneouslyin15days．Thiswasthefirststudytoshortenthestart-upperiodinto20days．Whenthefiltrationratewas6－10m/htheremovalcapacityofpollutantsofthefilterwaslessaffectedbythefiltrationrate．Fe2+NH+4－NandMn2+inthefilterwasremovedinaccordancewiththeorder．ThemaximumsimultaneousremovalofFe2+NH+4－NandMn2+concentrationwere12and2mg/Lundertheexperimentalconditionswhichcouldalsomeettheneedsofthemostcontaminatedgroundwatertreatment．InadditiondissolvedoxygenwasdeterminedtobealimitingfactorwhentheinfluentNH+4－Nconcentrationwashigherthan2mg/L．Keywordscatalyticoxidationfilterchemicaloxidationprocessgroundwaterquickstart-upammoniumironmanganese、、1。2。、、、3。《》、0．5、0．30．1mg/L。、。、。Tekerkopoulou、45。、6～10。115～6℃120d。12、、81d。KMnO4Fe2+Mn2+、。Guo13、、。14、、、、。NH+4－N10dMn2+。KMnO4KMnO4Mn2+、、。11.11。1Fig．1Schematicdiagramoffiltersystem3800mm、280mm。、、、。·7·．watergasheat．com3321300mm300mm8～15mm。10。d80=1．41mmd10=0．76mmK80=1．851100mm。1.2KMnO4Fe2+、Mn2+90%Mn2+Mn2+Mn2+2、34mg/LKMnO4Mn2+2mg/LMn2+0、12mg/L。NH4Cl、FeCl2·7H2O、MnCl2·7H2OKMnO4。1。1Tab．1Waterparametersforpilot-scalefilter/℃16．7～19．2pH7．2～8．0/mg·L－17．5～8．8/mg·L－10～0．2/mg·L－10～0．3/mg·L－10～0．003/mg·L－10～0．136/mg·L－10～0．076KMnO44m/h3．5～4L/s·m26min。11KMnO46m/h2d3．5～4L/s·m2。NH+4－N、Fe2+Mn2+。1.3DO、pH、、、、、、DO、pH、0．45μm。、pHDOHACHMn2+NH+4－NNO－2－NNO－3－NN－1－－。22.12.1.1、。NH+4－N、Fe2+Mn2+。2。2Mn2+Fig．2Variationofinfluentandeffluentammoniumconcentrationduringstart-upperiodwithdifferentinfluentsurplusmanganese·8·3321．watergasheat．com2Mn2+0、12mg/L48、89。11KMnO46m/h。Mn2+15NH+4－N2mg/LMn2+0．4～2．4mg/LNH+4－N。Mn2+Mn2+NH+4－N1617。2.1.2Mn2+0、12mg/L15、137Mn2+27、1915Mn2+。Mn2+Mn2+Mn2+12mg/L29．6%44．4%3。3Mn2+Fig．3Variationofinfluentandeffluentmanganeseconcentrationduringstart-upperiodwithdifferentinfluentsurplusmanganeseFe2+、Mn2+KMnO4Mn2+MnO2·xH2O。Mn2+MnO2·xH2O181、2。MnO2·xH2O+Mn2+=MnO2·MnO·x－1H2O+2H+1MnO2·MnO·x－1H2O+1/2O2+H2O=2MnO2·xH2O2KMnO4Mn2+Mn2+MnO2·xH2OMn2+Mn2+1920。Mn2+Mn2+2mg/L。2.26m/h、、、、、4NH+4－N、Fe2+Mn2+1．5、12mg/LFe2+30cm30cm＜0．5mg/LMn2+110cm＜0．1mg/L、。0·9·．watergasheat．com3321～30cm。Fe2+、Mn2+NH+4－N。4Mn2+、、Fig．4VariationofnitrogenironmanganeseandDOwithdepthoffilterafterstableoperationwithdifferentinfluentsurplusmanganese2.314NH+4－NMn2+6m/hNH+4－NMn2+2．32．66mg/L。NH+4－N、Fe2+Mn2+Fe2+Mn2+12mg/LFe2+NH+4－NNH+4－NMn2+5。5、Fig．5Variationofammoniumironandmanganesewithdepthoffilterafterstableoperationwithdifferentfiltrationrate6～8m/hNH+4－NMn2+2mg/L10m/hNH+4－N1．5mg/L2mg/L。NH+4－N、Fe2+、Mn2+2、·01·3321．watergasheat．com1、2mg/L6m/h810m/h30cm90、110cmNH+4－N0～20cm0～300～50cm。0～70cm0～900～110cm68m/h110cm10m/h。NH+4－NMn2+Mn2+。2.47．5～8．8mg/L6m/h、1mg/L、2mg/L6。6Fig．6VariationofdissolvedoxygenandammonianitrogenwithdepthoffilterafterstableoperationatdifferentinfluentconcentrationNH+4－N2．53mg/L。NH+4－N1．5～2mg/L0～30cm。NH+4－N2mg/L0～20cm1．5mg/L。。3①Mn2+。Mn2+2mg/L15d。②Fe2+、NH+4－NMn2+0～20、0～300～50cm。③6～8m/h2mg/LNH+4－N、1mg/LFe2+2mg/LMn2+10m/h1．5mg/LNH+4－N、1mg/LFe2+2mg/LMn2+。1TekerlekopoulouAGPapazafirisPGDVayenasDV．Afull-scaletricklingfilterforthesimultaneousremovalofammoniumironandmanganesefrompotablewaterJ．JChemTechnolBiotechnol20108571023－1026．2．N－J．20173871－10．3．J．2006272310－314．4TekerkopoulouAGVayenasDV．Ammoniaironandmanganeseremovalfrompotablewaterusingtricklingfil-tersJ．Desalination20072101/3225－235．5TekerkopoulouAGVayenasDV．Simultaneousbiologi-calremovalofammoniaironandmanganesefrompota-blewaterusingatricklingfilterJ．BiochemEngJ·11·．watergasheat．com33212008391215－220．6．J．20143481993－1