LCA comparison of container systems in municipal solid waste management |
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| Authors: | Jesús Rives Joan Rieradevall Xavier Gabarrell |
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| Institution: | 1. SosteniPrA (UAB-IRTA), Institute of Environmental Science and Technology (ICTA), Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain;2. Department of Chemical Engineering, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain;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;1. Department of Sciences and Technologies, Parthenope University of Naples, Italy;2. School of Environment, Beijing Normal University, China;1. Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania “LUIGI VANVITELLI”, Via Vivaldi 43, 81100, Caserta, Italy;2. Chemical Engineering Department, University College London, Torrington Place, London, WC1E 7JE, UK;1. Faculty of Science and Technology, University of Macau, Macau, China;2. School of Environment, Tsinghua University, Beijing 100084, China;1. State Key Laboratory of Clean Energy Utilisation, Zhejiang University, Hangzhou, China;2. Centre RAPSODEE, Ecole des Mines Albi, Campus Jarlard, 81013 Albi Cedex, France;3. Hangzhou Municipal Solid Waste Disposal Supervision Center, Hangzhou, China;1. Department of Electronics Engineering, Faculty of Engineering, University of the Basque Country UPV/EHU, Alameda Urquijo s/n, 48013 Bilbao, Spain;2. Department of Geography, Prehistory and Archaeology, Faculty of Arts, University of the Basque Country UPV/EHU, Tomás y Valiente s/n, 01006 Vitoria-Gasteiz, Spain |
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| Abstract: | The planning and design of integrated municipal solid waste management (MSWM) systems requires accurate environmental impact evaluation of the systems and their components. This research assessed, quantified and compared the environmental impact of the first stage of the most used MSW container systems. The comparison was based on factors such as the volume of the containers, from small bins of 60–80 l to containers of 2400 l, and on the manufactured materials, steel and high-density polyethylene (HDPE). Also, some parameters such as frequency of collections, waste generation, filling percentage and waste container contents, were established to obtain comparable systems. The methodological framework of the analysis was the life cycle assessment (LCA), and the impact assessment method was based on CML 2 baseline 2000. Results indicated that, for the same volume, the collection systems that use HDPE waste containers had more of an impact than those using steel waste containers, in terms of abiotic depletion, global warming, ozone layer depletion, acidification, eutrophication, photochemical oxidation, human toxicity and terrestrial ecotoxicity. Besides, the collection systems using small HDPE bins (60 l or 80 l) had most impact while systems using big steel containers (2400 l) had less impact. Subsequent sensitivity analysis about the parameters established demonstrated that they could change the ultimate environmental impact of each waste container collection system, but that the comparative relationship between systems was similar. |
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