废水处理系统中有机物分子量分布及其变化

11*201620。、、1K。TOCTOC60.9%、58.5%、65.2%UV254UV25469.9%、67.9%、82.1%。。X703Adoi10.3969/j.issn.1003-6504.2010.11.0091003-6504(2010)11-0043-03DistributionandTransformationofMolecularWeightofOrganicMattersinaWastewaterTreatmentSystemSHENGuoLIYin*SchoolofEnvironmentalScienceandEngineeringDonghuaUniversityShanghai201620ChinaAbstractDistributionandtransformationofmolecularweightoforganicmattersinawastewatertreatmentsystemweremonitoredbyultrafiltrationmembranemethod.Characteristicsofmolecularweightdistributionoforganicmattersandamountsoforganicfractionsindifferentmolecularweightrangesweremeasured.Resultsshowedthatorganicsonthefractionofmolecularweightlessthan1Khadthelargestratiointotalorganicsofoutletsintheanaerobicanoxicandaerobictank.TOCoftheorganicswithlowmolecularweightlessthan1Kwas60.9%58.5%65.2%oftotalTOCandUV254was69.9%67.9%82.1%oftotalUV254respectively.Itislessefficienttoremoveorganicsoflowmolecularweightbytraditionaltreatmentprocess.Keywordsdistributionofmolecularweightorganicmattersultrafiltrationmembrane。[1]。[2-7]。[8-9]。。。11.1、、。0.45μm、0.22μm1000010001。MILLIPORE8400。400mL4.18×[e-mail]*[e-mail]。EnvironmentalScience&Technology3311201011Vol.33No.11Nov.20101Table1Separationmembranespecification(0.45μm)(CA)0.45μm(0.22μm)(PES)0.22μm10000(PES)10000Da1000(PES)1000Da33。0.1MPa。1.21.2.11330min23250mL。1.2.2131h2。1.30.45μm250mL150mL。TOC、UV254。TOCDOC。100mL50mL30~40mL。TOC、UV254。1.4TOCTOC-VCPHDOC0.45μmTOCUV254UVmini-1240。22.1TOCDOC318.8mg/L、、TOC1。1、、1KTOCTOC60.9%、58.5%、65.2%。1K~10K10K~0.22μm0.22μm~0.45μmTOC5%~7.5%、20%~24.5%、5%~12%。1K。、[10]。。、[11]。2.2UV254UV2540.6344cm-1、、UV2542。UV254254nmUV254。UV254TOCTHMs[12]。2、、UV2541KUV25469.9%、67.9%、82.1%。1KUV254TOC。[13]UV2544411。31TOCUV2541K。1KTOCTOC60.9%、58.5%、65.2%UV254UV25469.9%、67.9%、82.1%。210K。10K60%。[][1].[J].200524125-126.ShiJin-yueZhangYu-xianBaoWei-bin.DistributionofmolecularweightoforganicmaterialofwatersourceinYaojiangRiver[J].YunnanEnvironmentalScience200524S125-126.inChinese[2].DOM[J].20073081-2.WeiJingZhangCai-xiangMaTeng.RemovalofDOMinleachatebycoagulation[J].EnvironmentalScience&Tech－nology20073081-2.inChinese[3].[J].200427576-77.LiJian-quLiLing-zhiWangZhan-sheng.Removaloforganicmatterinmicro-pollutedsurfacewaterbybiologicpretreatment[J].EnvironmentalScience&Technology200427576-77.inChinese[4].[J].199920143-46.ZhouLi-hongZhangShu-qiWangZhan-shengetal.Astudyontheremovalofmutagensfromwaterbyvariousu－nitedwaterpurificationprocesses[J].EnvironmentalScience199920143-46.inChinese[5]ChangCNChaoALeeFSetal.Influenceofmolecu－larweightdistributionoforganicsubstancesontheremovalefficiencyofDBPsinaconventionalwatertreatmentplant[J].WaterScienceandTechnology2000411043-49.[6].DOM[J].20001631-4.DongBing-zhiCaoDa-wenFanJin-chuetal.Re－movalofdissolvedorganicmatterDOMfromsourcewaterofHuangpujiangRiverbycoagulationandpowderedactivat－edcarbonPACprocess[J].ChinaWater&Wastewater20001631-4.inChinese[7]LepaneVPerssonTWedborgM.EffectsofUV-Bradia－tiononmolecularweightdistributionandfluorescencefromhumicsubstancesinriverineandlowsalinitywaterestuarine[J].CoastalandShelfScience2003561161-173.[8].[J].2003293155-158.DongBing-zhiLiWei-yingChenYanetal.EvaluationwiththechangeoforganicsMWdistributionforeffectoforganicsremovalbydifferenttreatmentmethod[J].TechnologyofWaterTreatment2003293155-158.inChinese[9].[J].2003233327-331.LiShuangZhangXiao-jianFanXiao-junetal.Organicmatterofvariousmolecularweightfractionsinsourcewater[J].ActaScientiaeCircumstantiae2003233327-331.inChinese[10].[J].200929175-80.ZhangLi-qingWangLeiWangXu-dongetal.EffectofmolecularweightdistributionandhydrophobicityofwastewatereffluentorganicmatterEfOMonnanofiltrationmembranefouling[J].ActaScientiaeCircumstantiae200929175-80.inChinese[11].[J].200632621-26.WangLeiWangXu-dongLiuYingetal.Characteris－ticsofresidualorganicsMWdistributioninthesecondaryeffluentandexperimentstudyofapplicablepretreatmentformembrane[J].TechnologyofWaterTreatment200632621-26.inChinese[12].[J].2008311123-25.DongYue-fenZhangLi-yun.Distributioncharacteristicsofmolecularweigthfordiscolvedorganicmattersinwatersources[J].HebeiChemicalEngineeringandIndustry2008311123-25.inChinese[13]ImaiAFukushimaTMatsushigeKetal.Fractionationandcharacterizationofdissolvedorganicmatterinashal－loweutrophiclakeitsinflowingriversandotherorganicmattersources[J].WaterResearch200135174019-4028.45