合肥某污染场地修复过程的环境足迹核算及不确定性研究  

Study on the calculation and uncertainty of environmental footprint analysis for remediation of a polluted site in Hefei

作　　者：田平 朱于红 杜耀 田明鑫 陈彩成 杨尚源 徐文菲 周鸿 TIAN Ping;ZHU Yuhong;DU Yao;TIAN Mingxin;CHEN Caicheng;YANG Shangyuan;XU Wenfei;ZHOU Hong(Zhejiang Zone-King Environmental Sci&Tech Co.,Ltd.,Hangzhou Zhejiang 310000)

机构地区：[1]浙江卓锦环保科技股份有限公司,浙江杭州310000

出　　处：《环境污染与防治》2024年第10期1515-1520,共6页Environmental Pollution & Control

基　　金：浙江省“尖兵”“领雁”研发攻关计划项目(No.2023C03139)。

摘　　要：以安徽合肥某典型污染地块的修复实践为例,采用环境足迹分析电子表格(SEFA)对修复过程中的各环节进行环境足迹核算,并通过蒙特卡洛模拟对核算结果的不确定性进行分析。结果表明,该修复工程的能源消耗量为6375万MJ,95%的置信区间为5039.62万~7694.36万MJ,变异系数为4.95%;温室气体(GHG)排放量为4497.5 t(以CO_(2)当量计),95%置信区间为3572.12~5335.16 t,变异系数为4.40%,说明分析结果具有较高的准确性。不确定性分析表明,材料用量、设备运行时长、运输距离等参数详细记录是保证分析结果准确的重要途径。为促进土壤污染风险管控和修复全过程的绿色低碳发展,建议将能源消耗量和碳排放量纳入土壤修复评估指标,建设碳足迹数据库,开发适合中国国情的本土化环境足迹评估软件。This study took the remediation practice of a typical polluted site in Hefei,Anhui Province,as a case.The Environmental Footprint Analysis Spreadsheet(SEFA)was employed to account for the environmental footprint throughout the remediation process.Monte Carlo simulation was used to analyze the uncertainty of the accounting results.The findings revealed that the energy consumption of the remediation project was 63.75 million MJ,with a 95%confidence interval of 50.3962 million to 76.9436 million MJ,and a coefficient of variation of 4.95%.The total greenhouse gas(GHG)emission was 4497.5 tons(expressed as CO_(2)equivalent),with a 95%confidence interval ranging from 3572.12 to 5335.16 tons and a coefficient of variation of 4.40%,indicating high accuracy of the analysis.The uncertainty analysis showed that detailed recording of parameters such as material usage,equipment operation time,and transportation distance was essential for ensuring the accuracy of the results.To advance green and low-carbon development in soil pollution risk control and remediation,it was proposed that energy consumption and carbon emissions should be integrated into the assessment indicators for soil remediation.Furthermore,constructing a carbon footprint database and developing environmental footprint assessment software tailored to China’s national conditions were recommended.

关 键 词：土地开发利用 土壤修复 环境足迹分析 碳排放 不确定性分析 

分 类 号：X53[环境科学与工程—环境工程]