Comparative analysis of organic waste management practices according to the level of urbanization in Burkina Faso

This study analyses organic waste management practices and households' willingness to adopt sustainable recovery methods in three localities in the Guiriko region of Burkina Faso. The survey of 278 households in Bobo-Dioulasso, Bama and Kotedougou shows that the locality is the main determinant of management methods with a highly significant association, contrary to individual sociodemographic characteristics. Subscription to a formal service is exclusively observed in Bobo-Dioulasso, without being generalized, while non-subscriber households mainly use 50% wild deposit and 46.7% incineration. Valuation preferences vary greatly depending on the urbanization gradient, with Kotedougou and Bama favoring composting with free removal and remuneration at 94.2% and 86.5%, while Bobo-Dioulasso divides between free sorting at 52.2% and composting at 37.5%. The use of raw waste as an amendment follows a rural-urban gradient with 73.1% in Kotedougou, 62.9% in Bama and 35.3% in Bobo, and is influenced by gender with an odds ratio of 2.35, education level and occupation. These results call for a territorialization of intervention strategies in waste management.