“Valuing water”. This is the theme chosen for the celebration of World Water Day on March 22nd, 2021. In Africa, this slogan makes sense insofar as water management has become a major issue in view of climate change.

Several countries are now faced with water stress, which is now affecting several regions, notably North Africa and the Near East. This phenomenon is linked to drought, itself caused by global warming.

According to the United Nations, about 3 billion people are expected to face water stress by 2025. To deal with this phenomenon, water specialists such as SUEZ recommend the use of treated wastewater, which is not yet sufficiently exploited in Africa, for water-consuming activities such as agriculture or for recharging groundwater, which in both cases provides a new natural filtering barrier. Other possible uses include watering green spaces and industrial uses.