Managing mixed debris after industrial disasters: separation, processing, and circular economy integration
提出一个多目标优化框架，将循环经济原则融入灾难物流规划，通过分类、回收和转化碎屑，平衡经济价值、运营成本和风险，帮助恢复管理者做出可持续决策。
Industrial disasters generate huge volumes of debris, posing significant social, environmental, and economic challenges. Most existing disaster logistics frameworks focus on immediate debris removal without adequately addressing subsequent recycling and material reintegration. We propose a multi-objective optimisation framework that integrates circular economy principles into disaster logistics planning. Debris are sorted, recycled, and transformed over a tactical, multi-period planning horizon. The problem is formulated as a multi-objective linear optimisation model, simultaneously maximising economic interest and minimising operational costs and risks associated with hazardous materials. The SAUGMECON method is adapted to solve this problem. Results indicate the proposed framework efficiently generates Pareto fronts balancing economic value, operational costs, and risk. Results highlight a risk tolerance threshold (18% for our instances). Below this level, cost and economic interest are decoupled, while they become strongly correlated above (coefficient above 0.7). Sensitivity analyses show the robustness of the model to variations (10%) in network capacities and costs, with limited impact on the Pareto front. Sites capacities also play a key role in flow absorption. These findings illustrate the model's reliability in real-world disaster scenarios and its ability to help recovery managers include sustainability and risk mitigation in their planning decisions.