催化氧化法处理焦化废水研究邹琳琳

StudyonCatalyticOxidationTreatmentofCokingWastewaterZOULin-lin,HUANGChongPANYi,YANGShuang-chunLiaoningShihuaUniversity,LiaoningFushun113001,ChinaAbstract:Ashighconcentrationorganicwastewater,cokingwastewaterispoisonous,harmfulanddifficultbiodegradable.Catalyticoxidationprocesscandecomposeorganicmacromolecularmaterialandreducecokingwastewatertoxicity.Inthisarticle,researchstatusofcatalyticoxidationtreatmentofcokingwastewaterwasmainlyintroduced,includingelectrodecatalyticmethod,electrochemicalcatalysismethod,wetcatalyticoxidation,supercriticalwateroxidationmethod,catalyticcouplingmethod,titaniumdioxidephotocatalysismethodandultrasoniccollaborativelightcatalysis,andsoon.Variousmethodsweresummarizedandevaluated.Then,somesuggestionsofresearchdirectioninthefuturewereputforward.Keywords:Cokingwastewater;Catalyticoxidationmethod;Titaniumdioxide;Catalyticcoupling;Photocatalysis:12V40min,COD70%[6]MWCNT-MEMWCNT-ME120minCOD145mg/L71mg/L51%[7]t=3.0hU=9.0VpH=9.080L/minCOD1062mg/L497mg/L[8]H2O216.6mA/cm2160L/h4.2mS/cmpH4.5540minTOC40%180min30gL-1m(Fe)/m(C)=31CODpH3H2O21.8mlL-1120min30gL-1m(Fe)/m(C)=31pH=7FeCl3100mgL-1PAM2mgL-1COD97%99%[25]-,pH3.070min,m(Fe)/m(C)=1.01.3pH9.0-NO2-NTN57.0%50.0%[26]RE-TiO2/PACREPACmPAC/mTiO2=11Nd-TiO2/PACpHCODCOD385mg/L0.5L/h4g/L90minCOD89%[27]TiO2:3hTiO24gLpHTOC53.40%,6623[28]TiO2/Fe3O42.6g·L-1CODNH3-N98.91%77.35%[29]4.27nmTiO23.2[30]DegussaP25,CODCODCOD4.0g/L