An integer programming approach to optimizing solid waste system for environmental impact management
整数规划用于固废系统环境影响模型的研究

In this study, an optimization model was developed based on the integer programming methods to address the environmental risk during solid waste transformation process. The integer programming method can help to address the selection of solid waste transfer routes and expansion schemes. The objective of the developed model is to minimize the system cost in solid waste treatment process considering the environmental effects for the surroundings of driving routes. The results indicated that different types of solid waste may need different recycling stations, in addition, the optimal routes from transfer stations to recycling stations may change during different planning periods. The landfill is always the best option for solid waste treatment due to its lower operation cost. However, pyrolysis is promising in the future owing to its huge treatment volume and the minimum transport and operation costs. The proposed model can effectively optimize resources distributions of municipal solid waste system and provide science-based waste management evidences for decision-makers.