Kone Kinanpara, Ta Bi Tra Noel Alexandre, Yeo Ténéna Martial, Gnagne Théophile and Bony Kotchi Yves
In Côte d›Ivoire, as in many cities in sub-Saharan Africa, the issue of fecal sludge treatment remains a public health and environmental protection issue. In Katiola, a plant was set up to address this challenge. This study focused on its operation, with a particular focus on unsaturated flow drying beds, a simple technology adapted to local realities. The study was based on direct observations, surveys, and an analysis of operational data over several years. It was noted that the plant receives increasing volumes of sludge, but often still below its capacity. The unsaturated flow drying bed, although efficient in infiltration and drying, has limitations related to frequent clogging, requiring rest periods to maintain its efficiency. Despite these constraints, the Katiola plant plays an essential role in limiting illegal discharges. Its proper operation, however, depends on the availability of emptying operators and better local organization. This study thus highlights the need to strengthen technical and human resources for more efficient sludge management in the municipality of Katiola.