电解法在废水处理中的应用封明

doi10．3969/j．issn．1001-3849．2013．01．012121．7271002．727100。、、、。X781．1B2012-03-302012-07-24ApplicationofElectrolysisMethodsinWastewaterTreatmentFENGMingLEIXiao-li1．YaozhouDistrictEnvironmentalMonitoringStationofTongchuanCityTongchuan727100China2．EnvironmentalMonitoringStationofTongchuanCityTongchuan727100ChinaAbstractAsanenvironmental-friendlywastewatertreatmenttechnologyelectrolysismethodwaswidelyusedinwatertreatment．Inthispapertheprincipleofelectrocoagulationelectro-floatationandelectro-catalyticoxidationmethidswereintroducedindetail．Andtheapplicationofelectrolysismethodinchromi-um-containingwastewaterurbanlandfillleachateemulsifiedwastewaterandchemicalfiberpulpblackliquortreatmentweredescribed．Finallythefutureresearchdirectionofelectrolysismethodwasanalyzed．Keywordselectrolysiswastewaterapplicationprogress。、、、。。1。1。、2。1．1Fe2+、Al3+、3。、·34·20131351238、4。Fe－2e→Fe2+Al－3e→Al3+2H++2e→H2↑。、、、、COD5。6CrⅢ、CrⅥZn2+、。7Crn+、Cu2+Zn2+96．22%、99．86%99．13%。1．2、H2、O2Cl2。、8。2H2O－4e→2O+4H+→O2↑+4H+4OH－－4e→2H2O+2O→O2↑+2H2O2H++2e→2H→H2↑、8。1．39。。HO·HO·。、。Al→Al3++3eFe→Fe2++2eFe→Fe3++3e2H2O+2e－→H2↑+2OH－、10。Cl－+2OH－→OCl－+H2O+2e－4OH－→2H2O+O2↑+4e－2H2O+2e－→H2↑+2OH－、、。。22．1CrⅥCrⅢCrⅥCrⅢ100、、、。200920009512．9、、CrⅥCrⅥCrⅢCrⅥ。ρCrⅥ60mg/L。11·44·Jan．2013PlatingandFinishingVol．35No．1SerialNo．2381。1pH1h。12ρCrⅥ0．6g/LpH=31．2g40min10min8．5A/dm294%。13CrⅥ、pH、。++CrⅥ99．6%。2．2。、。。14CODNH3-N88%100%98%84%CODNH3-N。15COD。16。5．0A/dm25hCOD50%100%2。22．3173。NaClFe-Fe、。Fe-Fe11mm0．1%NaCl1．0A/dm2CODCr94%。18。15min1．0A/dm2pH=7ρNaCl15g/L15～18mmCOD95．3%97．6%。32．419ACF、。CODCr、64．25%94．00%。204。·54·20131351238CODCrρCODCr2～4g/LCODCr45%68%。pH8～10t10min7～9kHz4A/m215mmδ3mm。43、。NH3-N、NO3－NO2－。1．-J．200928137-42．2．J．20045764-69．3．J．2001215619-621．4CalvoLSLeclercJP．AnElectro-coagulationUnitforthePurifi-cationofSolubleOilWastesofHighCODJ．EnvironmentalProgress200322157-65．5．EB/OL．http//．goepe．com/apollo/offer-shyishuang－3035694．html2011-10．6．J．200727z194-97．7．Cr3+Cr6+Zn2+J．2011321103-106．8．D．200521-23．9．J．2002136-9．10．J．2002221122-24．11．J．2003163247-248．12．J．2006241158-60．13．J．20082101349-1352．14．J．20032212892-897．15．-D．20041．16．J．20082736-9．17．J．2002254628-632．18．J．2006164179-182．19．J．2000193120-123．20．J．2001305422-424．·64·Jan．2013PlatingandFinishingVol．35No．1SerialNo．238