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Study of the combustion in a rotary kiln of model household waste from the city of Abomey-Calavi in Benin

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Author Affiliations

  • 1Laboratory of rural engineering, National University of Agriculture, 01 BP 55 Porto Novo, Benin
  • 2Research Unit on Molecular Interactions, Study and Research Laboratory in Applied Chemistry of the Polytechnic School of Abomey-Calavi, University of Abomey-Calavi (URIM / LERCA / EPAC / UAC), 01 BP: 2009 Cotonou, Benin and Pluridisciplinary Research Laboratory for Technical Education (LARPET), National University of Science Technology Engineering and Mathematics, Lokossa BP 133, Benin
  • 3Laboratory of rural engineering, National University of Agriculture, 01 BP 55 Porto Novo, Benin
  • 4Laboratory of rural engineering, National University of Agriculture, 01 BP 55 Porto Novo, Benin
  • 5Laboratory of rural engineering, National University of Agriculture, 01 BP 55 Porto Novo, Benin
  • 6Laboratory of rural engineering, National University of Agriculture, 01 BP 55 Porto Novo, Benin
  • 7Pluridisciplinary Research Laboratory for Technical Education (LARPET), National University of Science Technology Engineering and Mathematics, Lokossa BP 133, Benin

Res. J. Engineering Sci., Volume 11, Issue (3), Pages 1-11, September,26 (2022)

Abstract

Africa's major cities and capitals have experienced rapid population growth over the past four decades. This often exponential population growth poses major challenges for public authorities in the area of sanitation and the collection and treatment of household waste. In Abomey-Calavi, the household solid waste management system is reduced to pre-collection, with no collection or disposal activities operational. It is therefore essential to set up an action plan to analyze the problem and its characteristics, to determine the recovery methods, to test the different solutions proposed and to optimize the most viable systems. The present study, based on a characterization of household waste in the city of Abomey-Calavi, has shown that the combustible fraction of household waste can be represented by the combustible mixture of Wood (88%), Cardboard (7%) and Plastic (5%). A feasibility study on the burning of household waste in the city of Abomey-Calavi was then carried out. A rotary kiln was used to dry the model waste. To take into account the humidity of Benin, the tests were also carried out on the fuel mixture with defined proportions of water. In each case, the temperature and pollutant profiles were analyzed.

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