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WATERPURIFICATIONTECHNOLOGYVol.24No.62005 (武汉科技大学环境工程系,湖北武汉 430081) ,,:、、:,,、。,;、,,,、。。 StudyonModifiedMediainTreatmentofMicro-pollutedWaterforStrengtheningFiltrationLeiGuoyuan LiuWei LiYongcheng ZouYouhong WangGuanghui(DepartmentofEnvironmentEngineering,WuhanUniversityofScienceandTechology,Wuhan430081,China)Abstract Themodifiedmediacoatedbytitaniawasmadeinlaboratoryscale,andusedtotreatmicro-pollutedwaterinthisstudy.Theexperimentresultsshowedthatitsabitilyofremovingturbidity,organicpollutants,algaecellsishigherthanthatofquartzmedia.Comparedwithmodifiedmediacoatedwithironoxide,ofwhichtheabilityforremovingturbidityissimilar,butbetterforremovingorganicpollutantsandalgaecells.Accordingtomechanismofremovingpollutants,theabilityforremovingturbidityrelateswithbothitssurfaceelecticpotentialanditsabilityofbondingwithorganics,andforremovingorganicpollu-tantsandalgaecellsmainlyrelateswithionicvalenceofmetalcationboundonitssurfaceformondifiedmedia,thehigherionicvalenceofmetalcationis,themoreamountofanionicgroupboundbymetalcation,itsabilitytoremveorganicpoullutantsandalgaecellsisbetter.Thisachievementputforwardtomakeanewfiltrationmedia.Keywords micro-pollutedwater watertreament filtration modifiedmedia ,。。。“-”,。,。,,,、、。。:、、[1,2].,、、。1 1.1 ,,、,,。,、、、、,;133～161μg/L。—18—DOI牶牨牥牣牨牭牳牴牥牤j牣cnki牣jsjs牣牪牥牥牭牣牥牰牣牥牥牰 Vol.24No.62005 ,。1.2 ,,。0.5～2.0mm,,,105℃2～3h,。,。,。,,。,pH=2.5,3h,,。,,,,105℃2h,550℃3～4h,。。,,105℃,。1.3 33mm,100cm,80cm,3cm3～6mm,0.5～2.0mm。。1.4A[3]:ISO.7027-1984;0.45μm,CODMn;721-UV254。2 2.1 ,4.1m3/m2h,1,,,1NTU,1.8NTU。1 2.2 CODMnCODMn,CODMn,,1.0m3/m2h,21h,CODMn2。:CODMnCODMn15%～20%。,CODMn,。2 CODMn2.3 UV254254nm,,:UV254COD、TOC、BOD5,,UV254[4]。UV254。,,UV2540.110cm-1。1.0m3/m2h,12,UV2543。,,UV2544。3 UV254—19—Vol.24No.62005 4 UV2543,UV2540.04,4UV2540.01,,UV254。UV254,。2.4 ,1.03/m2h,5,,0～8h,10%～30%,8h,,,,,14h,5 a,,,,,。,,。2.5 、,,、,、CODMn、1,。,,;CODMn,,4h,CODMn2mg/L;,4h,5.3μg/L。,,,。1 涂钛砂与涂铁砂滤料除污效果的比较 (h)24682468(NTU)4.454.334.672.004.564.004.122.67(NTU)4h4.44,8h3.864h4.28,8h3.84CODMn(mg/L)6.5813.0014.2115.8410.3613.0014.2113.40(mg/L)4h9.79,8h12.414h11.68,8h12.74(μg/L)23.8518.2535.1836.4231.0922.0631.6127.60(μg/L)4h21.25,8h28.434h26.58,8h28.092.6 、[5]:,pH,,,;,=MeOH,RCOO-,MeOOCR,[6]:,、。,5.8～6.7[7],pH,,、,、;,MeOOCR,,。,,,。1,,—20— Vol.24No.62005 ,;,。,4,14;13,CODMn。,,,,。,,。,,。,、、,,,、、,,,、,。,,,。3 1),,、、;,,、。2),、,,,、,;,。3),、,,,-。1 ,,.[J].2002,18(10)9～112 ,,.[J].,2001,29(4):444～4473 ,.[M].:,200274 ,.[M].:,19905 ,,.[J].2002,18(10):42～446 ChangYujung,LiChwang,BenjaminMM,Ironoxide-coatedmediaforNOMsorptionandparticulatefiltration[J].JAWWA,1997,89(5):100～1077 .[M].:,198910, :2005-1-6 :,1964,,。据《中国改革报》10月17日报道,我国海水利用专项规划于近日出台。该规划提出,到2010年的发展目标为:我国海水淡化能力达到80～100万立方米/日,海水直接利用能力达到550亿立方米/年,积极发展海水化学资源的综合利用,海水利用对解决沿海地区缺水问题的贡献率达到16～24%。———摘自报刊文摘—21—