Insular Biobjective Routing with Environmental Considerations for a Solid Waste Collection System in Southern Chile

Daniela S. Arango González, Elias Olivares-Benitez and Pablo A. Miranda

Advances in Operations Research, 2017, vol. 2017, 1-11

Abstract:

This paper presents a biobjective problem for a solid waste collection system in a set of islands in southern Chile. The first objective minimizes transportation cost and the second one reduces the environmental impact caused by the accumulation of solid waste at the collection points. To solve this problem, biobjective mixed integer linear programming is used. In the model, an itinerary scheme is considered for the visit to the islands. The model decides which collection points are visited per island, the collection pattern, and quantity of solid waste to be collected at each site. The quantity of solid waste is obtained dividing the solid waste generated in the island by the number of collection points selected in that same island and the frequency of visits. For this problem, we considered that the environmental impact function varies through the days during which solid waste is accumulated at each collection point. We present an instance based on real data for a set of islands in Chiloe and Palena regions in southern Chile, in which the deposit node is Dalcahue. We used the epsilon-constraint method and the weighted sum method to obtain the Pareto front, using commercial optimization software.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaor:4093689

DOI: 10.1155/2017/4093689

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