ASTM D4188-2008 在线加压凝结-絮凝-过滤试验标准实施规程

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【英文标准名称】:StandardPracticeforPerformingPressureIn-LineCoagulation-Flocculation-FiltrationTest
【原文标准名称】:在线加压凝结-絮凝-过滤试验标准实施规程
【标准号】:ASTMD4188-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D19.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Coagulation-flocculation;Colloidaldispersions;Effluents;Filters/filterprocedures--watertesting;Flocculation;Pressuretesting--waterapplications;Wastewatertesting/treatment;Wateranalysis
【摘要】:Pressurein-linecoagulation-flocculationfollowedbyfiltrationisaneffectiveprocesstoremovesuspendedandcolloidalmatterfromwaterandwastewater.Theeffectivenessofthisprocessisdependentonthetypeandconcentrationoftheflocculantorcoagulant,orboth,thepH,thetemperature,thefiltrationmedium(a),andthefiltrationrate.Thispracticepermitstheevaluationofthesevariousparameters.Thispracticecanalsobeusedtodeterminefilterbackwashandrinserequirements.Theresultsobtainedfromthispracticecanbeusedforplantdesignoflargesystems.1.1Thispracticecoverstheprocedureusedtoperformpressurein-linecoagulation-flocculation-filtrationofwaterandwastewater.Itisapplicabletowaterandwastewaterwithrelativelylowsuspendedsolids(x003C;30mg/L).Thepracticeisapplicableforanysizefiltergreaterthan100mm(4in.)indiameter.1.2Thispracticecanbeusedtodeterminetheeffectivenessofflocculantsorcoagulants,orboth,andfiltermedium(a)inremovingsuspendedandcolloidalmaterialfromwaterandwastewater.1.3Intervalbetweenfilterbackwashing,backwashrequirements,rinserequirements,andeffectoffiltrationrateoneffluentqualitycanalsobeobtainedwiththispractice.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_30
【页数】:4P.;A4
【正文语种】:英语