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【英文标准名称】:StandardTestMethodforDeterminingAnaerobicBiodegradationofPlasticMaterialsUnderHigh-SolidsAnaerobic-DigestionConditions
【原文标准名称】:在强溶解液真空降解条件下测定塑性材料的真空生物降解的标准试验方法
【标准号】:ASTMD5511-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D20.96
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:降解;变换;塑料
【英文主题词】:anaerobicbiodegradation;anaerobicdigestion;biodegradation;high-solidsdigestion;landfill;plasticstestmethod
【摘要】:Biodegradationofaplasticwithinahigh-solidsanaerobicdigestionunitisanimportantphenomenonbecauseitwillaffectthedecompositionofotherwastematerialsenclosedbytheplasticandtheresultingqualityandappearanceofthecompostafterananaerobicdigestionprocess.Biodegradationofplasticscouldallowforthesafedisposaloftheseplasticsthroughaerobicandanaerobicsolid-waste-treatmentplants.Thisprocedurehasbeendevelopedtopermitthedeterminationoftherateanddegreeofanaerobicbiodegradabilityofplasticproductswhenplacedinahigh-solidsanaerobicdigesterfortheproductionofcompostfrommunicipalsolidwaste.Limitations8212;Becausethereisawidevariationintheconstructionandoperationofanaerobic-digestionsystemsandbecauseregulatoryrequirementsforcompostingsystemsvary,thisprocedureisnotintendedtosimulatetheenvironmentofanyparticularhigh-solidsanaerobic-digestionsystem.However,itisexpectedtoresembletheenvironmentofahigh-solidsanaerobic-digestionprocessoperatedunderoptimumconditions.Morespecifically,theprocedureisintendedtocreateastandardlaboratoryenvironmentthatwillpermitarapidandreproducibledeterminationoftheanaerobicbiodegradabilityunderhigh-solidsdigestionconditions.1.1Thistestmethodcoversthedeterminationofthedegreeandrateofanaerobicbiodegradationofplasticmaterialsinhigh-solidsanaerobicconditions.Thetestmaterialsareexposedtoamethanogenicinoculumderivedfromanaerobicdigestersoperatingonlyonpretreatedhouseholdwaste.Theanaerobicdecompositiontakesplaceunderhigh-solids(morethan30%totalsolids)andstaticnon-mixedconditions.1.2Thistestmethodisdesignedtoyieldapercentageofconversionofcarboninthesampletocarboninthegaseousformunderconditionsfoundinhigh-solidsanaerobicdigesters,treatingmunicipalsolidwaste(1,2,3,4).Thistestmethodmayalsoresemblesomeconditionsinbiologicallyactivelandfillswherethegasgeneratedisrecoveredandbiogasproductionisevenactivelypromoted,forexample,byinoculation(codepositionofanaerobicsewagesludge,anaerobicleachaterecirculation),moisturecontrolinthelandfill(leachaterecirculation),andtemperaturecontrol(short-terminjectionofoxygen,heatingofrecirculatedleachate)(5,6,7).1.3Thistestmethodisdesignedtobeapplicabletoallplasticmaterialsthatarenotinhibitorytothemicroorganismspresentinanaerobicdigestersoperatingonhouseholdwaste.1.4ThevaluesgiveninSIunitsaretoberegardedasthestandard.1.5ThistestmethodisequivalenttoISODIS15985.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsaregiveninSection8.
【中国标准分类号】:G31
【国际标准分类号】:13_030_99
【页数】:6P.;A4
【正文语种】: