ASTM D6586-2003(2008) 用快速小刻度柱测试法预测水系中粒状活性炭污染物吸附的标准方法

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【英文标准名称】:StandardPracticeforthePredictionofContaminantAdsorptionOnGACInAqueousSystemsUsingRapidSmall-ScaleColumnTests
【原文标准名称】:用快速小刻度柱测试法预测水系中粒状活性炭污染物吸附的标准方法
【标准号】:ASTMD6586-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D28.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:barriersystems;detentionandcorrectionalfacilities
【摘要】:Granularactivatedcarbon(GAC)iscommonlyusedtoremovecontaminantsfromwater.Howeverifnotusedproperly,GACcannotonlybeexpensivebutcanattimesbeineffective.Thedevelopmentofengineeringdataforthedesignoffull-scaleadsorbersoftenrequirestime-consumingandexpensivepilotplantstudies.Thisrapidstandardpracticehasbeendevelopedtopredictadsorptioninlarge-scaleadsorbersbaseduponresultsfromsmallcolumntesting.Incontrasttopilotplantstudies,thesmall-scalecolumntestpresentedinthispracticedoesnotallowforarunningevaluationoffactorsthatmayaffectGACperformanceovertime.Suchfactorsmayinclude,forexample,anincreasedremovaloftargetcompoundsbybacterialcolonizingGACorlongtermfoulingofGACcausedbyinorganiccompoundsorbackgroundorganicmatter.Nevertheless,thispracticeoffersmorerelevantoperationaldatathanisothermtestingwithouttheprincipaldrawbacksofpilotplantstudies,namelytimeandexpense;andunlikepilotplantstudies,smallscalestudiescanbeperformedinalaboratoryusingwatersampledfromaremotelocation.Thispracticeknownastherapidsmall-scalecolumntest(RSSCT)usesemptybedcontacttime(EBCT)andhydraulicloadingtodescribetheadsorptionprocess.MeancarbonparticlediameterisusedtoscaleRSSCTresultstopredicttheperformanceofafull-scaleadsorber.Thispracticecanbeusedtocomparetheeffectivenessofdifferentactivatedcarbonsfortheremovalofcontaminantsfromacommonwaterstream.1.1Thispracticecoversatestmethodfortheevaluationofgranularactivatedcarbon(GAC)fortheadsorptionofsolublepollutantsfromwater.Thispracticecanbeusedtoestimatetheoperatingcapacitiesofvirginandreactivatedgranularactivatedcarbons.Theresultsobtainedfromthesmall-scalecolumntestingcanbeusedtopredicttheadsorptionoftargetcompoundsonGACinalargecolumnorfullscaleadsorberapplication.1.2Thispracticecanbeappliedtoalltypesofwaterincludingsyntheticallycontaminatedwater(preparedbyspikinghighpuritywaterwithselectedcontaminants),potablewaters,industrialwastewaters,sanitarywastesandeffluentwaters.1.3Thispracticeisusefulforthedeterminationofbreakthroughcurvesforspecificcontaminantsinwater,thedeterminationofthelengthsoftheadsorbatesmasstransferzones(MTZ)andthepredictionofGACusageratesforlargerscaleadsorbers.1.4Thefollowingsafetycaveatappliestotheproceduresection,Section10,ofthispractice:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G13
【国际标准分类号】:91_090
【页数】:6P.;A4
【正文语种】:英语