Environmental assessment of alternative municipal solid waste management strategies. A Spanish case study |
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| Authors: | MD Bovea V Ibáñez-Forés A Gallardo FJ Colomer-Mendoza |
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| Institution: | 1. Department of Sciences and Technologies, Parthenope University of Naples, Italy;2. School of Environment, Beijing Normal University, China;1. Autonoma de Madrid University, Faculty of Business and Economy, Campus de Cantoblanco, 28049 Madrid, Spain;2. Castilla-la Mancha University, Faculty of Social Sciences of Talavera, Av Real Fábrica de Seda S/N, 45600 Talavera de la Reina, Toledo, Spain;3. Complutense of Madrid University, Faculty of Business and Economy, Campus de Somosaguas, 28023 Pozuelo de Alarcón, Madrid, Spain;1. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China;2. Beijing Engineering Research Center for Watershed Environmental Restoration & Integrated Ecological Regulation, Beijing 100875, China;3. Institute of Environmental Sciences, CML, Leiden University, Einsteinweg 2, 2333 CC Leiden, The Netherlands;4. Center for Social and Environmental Systems Research, National Institute for Environmental Studies (NIES), Onogawa 16-2, Tsukuba-City, Ibaraki 305-8506, Japan;5. Department of Sciences and Technologies, Parthenope University of Naples, Centro Direzionale—Isola C4, 80143 Naples, Italy;1. Federal University of Minas Gerais, School of Engineering, Department of Sanitary and Environmental Engineering, Bloco 2, Sala 4628, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais CEP 31270-901, Brazil;2. Federal University of Viçosa, Rodovia MG-230, Km 7, Rio Paranaíba, Minas Gerais CEP: 38810-000, Brazil |
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| Abstract: | The aim of this study is to compare, from an environmental point of view, different alternatives for the management of municipal solid waste generated in the town of Castellón de la Plana (Spain). This town currently produces 207 ton of waste per day and the waste management system employed today involves the collection of paper/cardboard, glass and light packaging from materials banks and of rest waste at street-side containers.The proposed alternative scenarios were based on a combination of the following elements: selective collection targets to be accomplished by the year 2015 as specified in the Spanish National Waste Plan (assuming they are reached to an extent of 50% and 100%), different collection models implemented nationally, and diverse treatments of both the separated biodegradable fraction and the rest waste to be disposed of on landfills.This resulted in 24 scenarios, whose environmental behaviour was studied by applying the life cycle assessment methodology. In accordance with the ISO 14040-44 (2006) standard, an inventory model was developed for the following stages of the waste management life cycle: pre-collection (bags and containers), collection, transport, pre-treatment (waste separation) and treatment/disposal (recycling, composting, biogasification + composting, landfill with/without energy recovery). Environmental indicators were obtained for different impact categories, which made it possible to identify the key variables in the waste management system and the scenario that offers the best environmental behaviour. Finally, a sensitivity analysis was used to test some of the assumptions made in the initial life cycle inventory model. |
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