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Combining multi-criteria decision analysis with GIS approaches for decentralized organic wastes composting plants site selection in Tiassalé, Southern Côte d’Ivoire
Citation Link: https://doi.org/10.15480/882.4319
Publikationstyp
Journal Article
Date Issued
2022-06
Sprache
English
TORE-DOI
Journal
Volume
40
Issue
6
Start Page
706
End Page
720
Citation
Waste Management & Research 40 (6): 706-720 (2022-06)
Publisher DOI
Scopus ID
Publisher
SAGE Publications
In recent years, decentralized composting appeared as one of the most appropriate treatment options for organic waste valorization in low- and middle-income countries. In Cote d’Ivoire, a pilot project has proved the feasibility of organic municipal solid waste composting for the city of Tiassalé. However, numerous issues still need to be addressed for the establishment of a sustainable decentralized composting system in this city. One of the key issues is site selection. Until now, there is no clear model for such plant site selection. In this study, multi-criteria decision analysis (MCDA) and geographical information system (GIS) approaches were combined to develop an appropriate model for selecting decentralized composting sites in the city of Tiassalé. The methodology used involved two different and complementary phases. First, MCDA and GIS techniques were used to identify the most suitable site areas. Seven criteria clustered in three main factors (environmental, social and economic), and five constraints were considered in the analysis process. Second, five sites were selected within the most suitable areas after a basic field visit and ranked using the Analytic Hierarchy Process. The results showed that the most suitable spaces for decentralized composting plant siting represent only 2.6% of the study area. The investigation yielded on the selection of the two best options for decentralized composting plant siting for the city of Tiassalé. This study proved that the combination of MCDA and GIS is a practical and efficient method to identify suitable sites for decentralized composting plants.
Subjects
Decentralized composting
GIS
MCDA
AHP
organic wastes
site selection
DDC Class
600: Technik
620: Ingenieurwissenschaften
Publication version
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10.1177_0734242X211038173.pdf
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