Financial Acceptability Study of a Faecal Sludge Treatment Plant for Watercourse Purification in Mali

The sustainable management of faecal sludge is a major challenge for Malian cities facing rapid urbanization and limited access to collective sanitation systems. This study analyzes the financial acceptability of a faecal sludge treatment plant (FSTP) in Mali, using a techno-economic approach that integrates investment, operation, and maintenance costs, as well as the ability and willingness to pay of households and service operators. The results indicate that, under certain tariff and organizational assumptions, the FSTP can be financially acceptable and socially sustainable, provided that adequate institutional support and professionalization of stakeholders are ensured.