污染土壤风险管控中碳效应核算方法及案例研究

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中图分类号： Q938.1+3 文献标志码：A 文章编号：2095-2945(2025)20-0030-

Abstract:Basedonacomprehensivelifecycleasessment(LCA)forcontaminatedsoilriskmanagementandcontrol,the boundariesforcarbonemissionaountingweredelineated，andacorespondingcarbonemissioncalculationmethodologywas proposed.Theprimarysourcesofcarbonemisionsidentifiedincludetheproductionandtransportationofbariermaterials， infrastructuredevelopment,andtheexecutionofengineringworks.Utlizingtheproposedcarbonemissoncalculation methodology，anevaluationofthecarbonemisionsassociatedwiththeriskmanagementandcontrolofcontaminatedsoilata non-ferrousmetalprocessingfacityinLiaoningwasconducted.Theresultsindicatethatthetotalcarbonemissonsforthe projectamountto4402.172metrictons，withthecarbonemisionsforisolatingonecubicmeterofcontaminatedsoilbeing 22.8kg.Thestudy'sfindingsrevealthattheproductionofbarrermaterialsisthepredominantsourceofcarbonemissionsinthe risk management and control process,constituting 87.65 % of the total carbon emissions.Following this,the project implementation phasecontributessignificantly，withcarbonemisionsprimarilystemmingfromtheenergyconsumptionofconstructionmachinery, amounting to 410.428 metric tons and accounting for 9.32% of the total emissions.Conversely，the infrastructure development phase generates the least carbon emissions,totaling 119.O24 metric tons,which accounts for 3.03% of the total emissions.

Keywords: life cycle assessment (LCA); carbon emission; risk management; risk management of contaminated soil; barrier materials

我国为积极应对全球气候变化，已确立了一项国家战略目标，即在2030年前实现碳达峰，并在2060年前达成碳中和。（剩余7235字）