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Economic and environmental concerns in planning recyclable waste collection systems
Institution:1. Instituto Universitário de Lisboa (ISCTE-IUL), Business Research Unit (BRU), Av. das Forças Armadas, 1649-026 Lisboa, Portugal;2. CMA, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal;3. CEG-IST, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;1. Department of Engineering Management, College of Electrical and Mechanical Engineering (CEME), National University of Sciences and Technology (NUST), Islamabad, Pakistan;2. Department of Humanities and Sciences, School of Electrical Engineering and Computer Sciences (SEECS), National University of Sciences and Technology (NUST), Islamabad, Pakistan;3. Department of Management Sciences, City University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan;4. Department of Industrial Engineering, Jalozai Campus, University of Engineering and Technology, Peshawar, Pakistan;5. Department of Mechanical and Industrial Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Al Kharj, 11942, Saudi Arabia;6. Department of Industrial Engineering, Yonsei University, 50 Yonsei-ro, Sinchon-dong, Seodaemun-gu, Seoul, 03722, South Korea;1. Escuela de Ingenierías Industriales, Universidad de Extremadura, Av. Elvas s/n, 06006, Badajoz, Spain;2. Centre for Management Studies, Instituto Superior Técnico (CEG-IST), Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001, Lisboa, Portugal;3. Instituto Universitário de Lisboa (ISCTE-IUL), Business Research Unit (BRU-IUL), Av. Forças Armadas, 1649-026, Lisboa, Portugal;1. Department of Industrial and Systems Engineering, Chung Yuan Christian University, Chungli District, Taoyuan City, Taiwan 32023, ROC;2. Industrial Engineering, Faculty of Technology Industry, Petra Christian University, Surabaya, East Java 60236, Indonesia;1. Department of Research Methods and Biopsychology, Technische Universität Braunschweig, Braunschweig, Germany;2. Department of Neurology, Hannover Medical School, Hannover, Germany;3. Department of Developmental, Personality and Forensic Psychology, Technische Universität Braunschweig, Braunschweig, Germany
Abstract:This paper addresses the planning of recyclable waste collection systems while accounting for economic and environmental concerns. Service areas and vehicle routes are defined for logistics networks with multiple depots where different products are collected. The problem is modeled as a multi-product, multi-depot vehicle routing problem with two objective functions: distance and CO2 emissions minimization. A decomposition solution method is developed and applied to a real case study. Six scenarios regarding different service areas and objective functions are studied. Savings of up to 22% in distance and 27% in CO2 emissions are achieved, exceeding economic and environmental goals.
Keywords:Greenhouse gas emissions  Service areas  Vehicle routing problem  Multiple depots  Multiple products  Recyclable waste collection
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