循环经济如何助力重金属减排:基于环境扩展型投入产出表的分析  

How circular economy can help reduce heavy metal emissions:An analysis based on environmentally extended input-output tables

作　　者：仪明金[1,2] 李强[1,3] Yi Mingjin;Li Qiang(Shenzhen Information Vocational and Technical College,Shenzhen 518000;Xi'an Jiaotong University,Xi'an 710049;Institute of Quantitative Economics,Chinese Academy of Social Sciences,Beijing 100732)

机构地区：[1]深圳信息职业技术学院,深圳518000 [2]西安交通大学,西安710049 [3]中国社会科学院数量经济研究所,北京100732

出　　处：《环境工程学报》2024年第12期3679-3688,共10页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金青年资助项目(72003167);全国统计科学研究项目(2022LY020)。

摘　　要：重金属污染是当今我国面临的最严峻的环境问题之一,如何有效控制重金属的排放,是应对这一问题的关键所在。循环经济作为一种高效利用资源、减少废物、降低污染的经济模式,为解决重金属污染提供了一种可行的途径。本研究基于环境扩展型投入产出表(EEIO),分析了循环经济中的产品寿命延长和资源效率两种策略对重金属排放的影响。研究结果表明,这些策略可以使6类重金属排放量显著降低,降幅在14%~18%之间,其中铅和铬的降幅最为明显,分别降低了17.88%和16.39%。本研究为管理方、企业和社会共同推进循环经济,建立重金属排放防控制度和长效机制提供了有益的参考和借鉴。Heavy metal pollution is one of the most serious challenges facing China today,and controlling heavy metal emissions is the key to tackling this challenge.Circular economy,as an economic model that efficiently uses resources and reduces waste,provides an effective way to reduce heavy metal emissions.This study adopted the environmentally extended input-output table(EEIO)method.The research results showed that these strategies could reduce the emissions of six types of heavy metals by about 14%~18%,among which Pb and Cr were reduced by 17.88%and 16.39%,respectively.These results provide a useful reference and inspiration for the government,enterprises and society to jointly promote circular economy,establish heavy metal emission prevention and control system and long-term mechanism.

关 键 词：循环经济 重金属 产品寿命延长 资源效率 供给使用表 投入产出表 

分 类 号：X53[环境科学与工程—环境工程]