Lecture
This lecture covers the challenges and sustainable development issues related to access to clean water and sanitation in African cities, focusing on the modes of water supply, distribution, and wastewater management based on data from Abéché city. It discusses the different sources of water, such as boreholes, modern and traditional wells, surface water, and others, as well as the sanitation methods, including improved toilets, latrines, and open defecation. The instructor emphasizes the importance of proper water storage, distribution, and wastewater treatment for the overall environmental and sustainable development in African urban areas.