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WATERPURIFICATIONTECHNOLOGYVol.30,No.1,2011Feburary25th,2011201130145-48WaterPurificationTechnology、。、、[1-2]。[3]。。[4-5]。。11.11.2-[6][][]1980-13917706423E-mail:ysh928@hotmail.com。[]1973-E-mail:xbsun@ecust.edu.cn。1222221.2018012.200237。。6%TU992.3A1009-0177201101-0045-04AdvancedTreatmentforTotalCyanideinCokingWastewaterwithChemicalOxidationProcessYeShenhao1,SunXianbo2,HuLanfang2,ZhaoJing2,HuangSiyuan2,FengZiyan2(1ShanghaiYamingLightingCO.,LTD.,Shanghai201801,China;2EastChinaUniversityofScience&Technology,Shanghai200237,China)AbstractRemovalefficiencyoftotalcyanidesincokingwastewaterbyozoneoxidationandchlor-alkalioxidationwasinvestigated.Theresultsshowthatozoneoxidationhasapooreffectonremovaloftotalcyanides,theconcentrationofeffluenttotalcyanidescannotmeetthedischargestandard.Thecyanidesincokingwastewater,whichisrelativelystableanddifficulttobeoxidizedbyozone,ismostlyferricyanide.Chlor-alkalioxidationhasgoodeffectonremovaloftotalcyanides.Whenthedosageofsodiumhypochloritesolu－tionisover6%,theconcentrationofeffluenttotalcyanidescanmeetthedischargestandard.KeywordscokingwastewatercyanideozoneoxidationChlor-alkalioxidationferricyanide1Tab.1CharacteristicofWastewaterpHCODZn2+Ni2+Fe3+Co2+7.51573.300.141.410.145.110.01／mg·L-145--DOI:10.15890/j.cnki.jsjs.2011.01.009Vol.30,No.1,2011UV-2802H。11L。CF-3-G-005GKI1.2m3／h6.6mg／L。。22.112。40min40min90min42.5%1.90mg／L0.3mg／L。。2[7]。。13.3mg／L、0.14mg／L。。1[8-9]。CN-。3.0mg／LNaCN3.0mg／L。pH9HCNpH＝10.03。20min。20min75%。50min60min86%。1Fig.1SchematicDiagramofOzoneOxidationEquipment︵︶▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲2pH=7.5Fig.2TheRelationshipofOzoneOxidationTimeandCyanideRemovalRatioforWastewater(pH=7.5)3pH=10.0Fig.3ComparisonofOzoneOxidationRemovalofFreeandCyanideComplexpH=10.04540353025201510500102030405060708090100／min／%1008060402000102030405060／min／%.46--WATERPURIFICATIONTECHNOLOGYVol.30,No.1,2011Feburary25th,201110min10min46%10min[10]。。490min50.9%42.5%。23。NaCN、HCN。2.2pHNaClO。。NaClO10%3%1%Na2SO3。53.44mg／L60min72.1%75min76.7%1h0.3mg／L。NaClO23.19mg／L6%0.3mg／L。50030／。。31。4pH=7.5Fig.4ComparisonofCyanideRemovalEffectforWastewaterandManualMake-upWaterpH=7.560504030201000102030405060708090100／min／%5Fig.5Chlor-AlkaliOxidationTimeEffectontheTotalCyanideRemoval01020304050607080／min9080706050403020100／%2NaClOTab.2TheDoseofNaClOEffectontheTotalCyanideRemoval／%／mg·L-1／%36120.490.280.140.430.260.20.460.270.1785.691.594.747--Vol.30,No.1,20112831MIEX○R。MIEX○R300800CODMn36%32%MIEX○RCODMn2.6mg／LGB5749—2006。2MIEX○R100100012.43.0。MIEX○R。。3MIEX0.16／t。1BoyerTH,SingerPC.Apilot-scaleevaluationofmagneticionexchangetreatmentforremovalofnaturalorganicmaterialandinorganicanions[J].WaterResearch,2006,40(15),2865-2876.2BoyerTH,SingerPC.Bench-scaletestingofamagneticionex－changeresinforremovalofdisinfectionby-productprecursors[J].WaterResearch,2005,39(7):1265-1276.3HumbertH,GallardH,Jacquemet,etal.Combinationofcoagula－tionandionexchangeforthereductionofUFfoulingpropertiesofahighDOCcontentsurfacewater[J].WaterResearch,2007,41(17):3803-3811.4.MIEX○R[J].,2009,28(5):51-55.5,,,.MIEX○R[J].,2009,25(6):14-18.6HumbertH,GallardH,SutyH,etal.Performanceofselectedan－ionexchangeresinsforthetreatmentofahighDOCcontentsur－facewater[J].Waterresearch,2005,39(9):1699-1708.7MergenMRD,JeffersonB,ParsonsSA,etal.Magneticion-ex－changeresintreatment:impactofwatertypeandresinuse[J].WaterResearch,2008,42(8-9):1977-1988.8,,,.[J].,2006,22(11):1-5.9DrikasM,ChowCWK,CookD.Theimpactofrecalcitrantor－ganiccharacterondisinfectionstability,trihalomethaneformationandbacterialregrowth:Anevaluationofmagneticionexchangeresin(MIEX○R)andalumcoagulation[J].JournalofWaterSupply:ResearchandTechnology-Aqua,2003,52(7):475-487.10AllpikeBP,HeitzA,JollCA,etal.Sizeexclusionchromatogra－phytocharacterizeDOCremovalindrinkingwatertreatment[J].EnvironmentalScience&Technology,2005,39(7),2334-2342.2。36%0.3mg／L。1.[J].,2005,(8):162-164.2,,,[J].,2005,24(2):44-49.3DB31／199－2009.[S],2009.4,,,.[J].,2006,35(2):110-112.5.[J].,2002,20(4):278-280.6.[M].2002.12.7.[J]2005.525(2):18-218DongheePark,DaeSungLee,YoungMoKim,etal.Bioaugmen－tationofcyanide-degradingmicroorganismsinafull-scalecokeswastewatertreatmentfacility[J].BioresourceTechnology,2008,99:2092-2096.9FatmaGurbuz,HasanCiftci,AtaAkcil.BiodegradationofcyanidecontainingeffluentsbyScenedesmusobliquus[J].JournalofHaz－ardousMaterials2009,162:74-79.10.[M].:2003..........................................................................................................、、48--