Measuring eco-productivity in the management of municipal solid waste: a parametric approach

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Journal of Material Cycles and Waste Management Pub Date : 2025-03-25 DOI:10.1007/s10163-025-02193-9

Alexandros Maziotis, Ramon Sala-Garrido, Manuel Mocholi-Arce, Maria Molinos-Senante

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引用次数: 0

Abstract

Within the context of the circular economy, improving the eco-efficiency (EE) in the management of municipal solid waste (MSW) is of paramount importance. For informed decision-making, understanding the dynamics of EE, i.e., eco-productivity change (EPC) and its drivers—efficiency change, technical change and scale change—have revealed as essential. This study evaluates EPC in MSW management using a parametric approach, enabling the quantification of the influence of environmental variables on performance. An empirical application was developed for a sample of 98 Chilean municipalities from 2015 to 2019. Average EE was 0.796 revealing a good environmental performance of municipalities in managing MSW. Nevertheless, a total of 1,191,841 tons of unsorted waste per year could be recycled if municipalities were eco-efficient. The assessment of EPC identified two sub-periods. From 2015 to 2017, the average EPC was 0.907 indicating a regression in the eco-productivity of 9.3% per year. Between 2017 and 2019 with an average EPC of 1.137, i.e., an improvement of 13.7% per year on eco-productivity. This was due to the positive contribution of eco-technical change and eco-scale efficiency change, whereas EE change remained constant. Moreover, relevant differences in EPC at regional level were found.

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测量城市固体废物管理中的生态生产力：参数化方法

在循环经济背景下，提高城市固体废物（MSW）管理的生态效率（EE）至关重要。为了做出明智的决策，了解生态效益的动态，即生态生产率变化（EPC）及其驱动因素--效率变化、技术变化和规模变化--至关重要。本研究采用参数法对都市固体废物管理中的生态生产力变化进行评估，从而量化环境变量对绩效的影响。从 2015 年到 2019 年，对智利 98 个城市的样本进行了实证应用。平均 EE 为 0.796，这表明市政当局在管理 MSW 方面具有良好的环境绩效。然而，如果市政当局具有生态效率，每年共有 1 191 841 吨未分类垃圾可以回收利用。对 EPC 的评估确定了两个分时期。从 2015 年到 2017 年，平均 EPC 为 0.907，表明生态生产率每年倒退 9.3%。2017 至 2019 年，平均 EPC 为 1.137，即生态生产力每年提高 13.7%。这归功于生态技术变革和生态规模效率变革的积极贡献，而能源效率变革保持不变。此外，还发现各地区的生态生产率存在相关差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Material Cycles and Waste Management 环境科学-环境科学

CiteScore

5.30

自引率

16.10%

发文量

205

审稿时长

4.8 months

期刊介绍： The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles. The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management. The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).