Designation:E2060−06(Reapproved2014)StandardGuideforUseofCoalCombustionProductsforSolidification/StabilizationofInorganicWastes1ThisstandardisissuedunderthefixeddesignationE2060;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversmethodsforselectionandapplicationofcoalcombustionproducts(CCPs)foruseinthechemicalstabilizationoftraceelementsinwastesandwastewater.Theseelementsinclude,butarenotlimitedto,arsenic,barium,boron,cadmium,chromium,cobalt,lead,molybdenum,nickel,selenium,vanadium,andzinc.Chemicalstabilizationmaybeaccompaniedbysolidificationofthewastetreated.Solidifica-tionisnotarequirementforthestabilizationofmanytraceelements,butdoesofferadvantagesinwastehandlingandinreducedpermeabilityofthestabilizedwaste.1.1.1Solidificationisanimportantfactorintreatmentofwastesandespeciallywastewaters.Solidification/Stabilization(S/S)technologyisoftenusedtotreatwastescontainingfreeliquids.ThisguideaddressestheuseofCCPsasastabilizingagentwithouttheadditionofothermaterials;however,stabi-lizationorchemicalfixationmayalsobeachievedbyusingcombinationsofCCPsandotherproductssuchaslime,limekilndust,cementkilndust,cement,andothers.CCPsusedaloneorincombinationwithotherreagentspromotestabiliza-tionofmanyinorganicconstituentsthroughavarietyofmechanisms.Thesemechanismsincludeprecipitationascarbonates,silicates,sulfates,andsoforth;microencapsulationofthewasteparticlesthroughpozzolanicreactions;formationofmetalprecipitates;andformationofhydratedphases(1-4).2Long-termperformanceofthestabilizedwasteisanissuethatmustbeaddressedinconsideringanyS/Stechnology.Inthisguide,severaltestsarerecommendedtoaidinevaluatingthelong-termperformanceofthestabilizedwastes.1.2TheCCPsthataresuitedtothisapplicationincludeflyash,spentdryscrubbersorbents,andcertainadvancedsulfurcontrolby...
