To dream or not to dream in Havana: multi-criteria decision-making for material and energy recovery from municipal solid wastes |
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Authors: | Alfonso-Cardero Arael Pagés-Díaz Jhosané Kalogirou Efstratios Psomopoulos Constantinos S Lorenzo-Llanes Junior |
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Institution: | 1.Departamento de Ingeniería Química, Universidad Tecnológica de La Habana “José Antonio Echeverría” (CUJAE), Marianao, 11500, La Habana, Cuba ;2.Departamento de Ingeniería Química, Laboratorio de Biotecnología Ambiental, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Casilla 40, Correo 33, Santiago, Chile ;3.International Waste Management & WtE Expert, 11 Davaki, 16233, Athens, Greece ;4.Department of Electrical & Electronics Engineering, University of West Attica, Campus Ancient Olive Grove, 250 Thivon str & P. Rali Ave, GR-12244, Egaleo, Greece ;5.Earth Engineering Center, Columbia University, 500 West 120th St., #926, New York, NY, 10027, USA ;6.Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Vicu?a Mackenna 4860, Macul, Santiago, Chile ; |
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Abstract: | Currently, solid waste management strategies in Havana are outdated. This paper aimed to select the most suitable alternative for integrating material recovery facilities (MRF) with waste-to-energy technologies in the city of Havana, Cuba. Seven scenarios were considered: combustion, gasification, and hydrothermal carbonization (HTC) with and without carbon capture, and anaerobic digestion (AD). The selection was based on environmental, techno-economic, and social parameters using an analytic hierarchy process (AHP) as a multi-criteria decision-making tool (MCDM). The MCDM-AHP accounted for qualitative criteria (based on experts’ judgments) and quantitative (based on Aspen Plus simulation models). From the MRF, 63% of the input recyclable materials were recovered, representing an energy saving of 256 kW-h/tMSW. The AHP results showed that environmental criteria had the highest priority, resulting in ~63% and ~73% higher than social and techno-economic criteria, respectively. Likewise, from the techno-economic, environmental, and social sub-criteria analysis, investment risk, pollution, and work safety had the major concern compared with the other sub-criteria levels. Overall, MRF+AD was the most suitable scenario (21% preference) for treating Havana’s municipal solid waste (MSW), followed by combustion and gasification with carbon capture, respectively. This study confirms that AD is a preference option for emerging economies like Cuba, mainly due to low environmental pollution, high social acceptance, and financial stability in the long term. |
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