ASTM D4692-2001(2010) 反渗透和纳米渗透用硫酸盐标定盐分(CaSO4,SrSO4和BaSO4)的计算和修正的标准实施规程

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【英文标准名称】:StandardPracticeforCalculationandAdjustmentofSulfateScalingSalts(CaSO4,SrSO4,andBaSO4)forReverseOsmosisandNanofiltration
【原文标准名称】:反渗透和纳米渗透用硫酸盐标定盐分(CaSO4,SrSO4和BaSO4)的计算和修正的标准实施规程
【标准号】:ASTMD4692-2001(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D19.08
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:barium;calcium;membranefouling;membranescaling;nanofiltration;reverseosmosis;strontium;sulfatescaling;Sulfatescalingsalts;Watercontent;Bariumsulfate(BaSO4);Brackishwater/brines;Concentration(ofelements);Nanofiltration(
【摘要】:Inthedesignandoperationofreverseosmosisandnanofiltrationinstallations,itisimportanttopredicttheCaSO4,SrSO4,andBaSO4scalingpropertiesoftheconcentratestream.Becauseoftheincreaseintotaldissolvedsolidsandtheincreaseinconcentrationofthescalingsalts,thescalingpropertiesoftheconcentratestreamwillbequitedifferentfromthoseofthefeedsolution.Thispracticepermitsthecalculationofthescalingpotentialfortheconcentratestreamfromthefeedwateranalysesandthereverseosmosisornanofiltrationoperatingparameters.ScalingbyCaSO4,SrSO4,andBaSO4willadverselyaffectthereverseosmosisornanofiltrationperformance.Thispracticegivesvariousproceduresforthepreventionofscaling.1.1Thispracticecoversthecalculationandadjustmentofcalcium,strontium,andbariumsulfatesfortheconcentratestreamofareverseosmosisornanofiltrationsystem.Thecalculationsareusedtodeterminetheneedforscalecontrolintheoperationanddesignofreverseosmosisandnanofiltrationinstallations.Thispracticeisapplicableforalltypesofreverseosmosisdevices(tubular,spiralwound,andhollowfiber)andnanofiltrationdevices.1.2Thispracticeisapplicabletobothbrackishwatersandseawaters.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.
【中国标准分类号】:G12
【国际标准分类号】:71_120_99
【页数】:4P.;A4
【正文语种】:英语