Modeling barriers to a circular economy for construction demolition waste in the Aysén region of Chile

IF 6.4 Q1 ENVIRONMENTAL SCIENCES Resources, conservation & recycling advances Pub Date : 2023-10-01 DOI:10.1016/j.rcradv.2023.200145

Karina D. Véliz , Jeffrey P. Walters , Carolina Busco , Maximiliano Vargas

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引用次数: 3

Abstract

An increasing rate of urbanization, lack of knowledge, low willingness to pay for sustainable waste management, and absence of legal landfills inhibit the rate at which Circular Economy (CE) is implemented. The successful CE adoption for construction and demolition waste (CE-CDW) involves navigating a complex tapestry of interconnected factors that enable or inhibit CE-CDW success. We used a participatory system thinking and modeling approach to analyze the interaction of inhibiting factors that impact CE-CDW in Aysén, Chile. Barriers to CE-CDW were identified in the literature and modeled in a workshop with experts from different areas of construction industry, policy, and academia. The emerging CE-CDW system model was analyzed using structural factor and network analysis techniques to identify leverage points for policy and practice. Findings pointed to limited strategic vision of policy and regulation as a key barrier impacting the necessary financial and technical elements needed to implement and scale-up CE-CDW.

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智利Aysén地区建筑拆迁废弃物循环经济障碍建模

城市化率的提高、知识的缺乏、为可持续废物管理付费的意愿低以及缺乏合法的垃圾填埋场都抑制了循环经济的实施速度。成功采用CE处理建筑和拆除废物（CE-CDW）涉及到驾驭一系列复杂的相互关联的因素，这些因素促成或阻碍了CE-CDW的成功。我们使用参与式系统思维和建模方法来分析影响智利Aysén CE-CDW的抑制因素的相互作用。文献中确定了CE-CDW的障碍，并在与建筑业、政策和学术界不同领域的专家举行的研讨会上进行了建模。使用结构因素和网络分析技术对新兴的CE-CDW系统模型进行了分析，以确定政策和实践的杠杆点。调查结果表明，政策和监管的战略眼光有限，是影响实施和扩大CE-CDW所需的必要金融和技术要素的关键障碍。

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