Desalination as an Integrated Water–Energy–Material System in Water-Stressed Regions
Water scarcity has become a structural constraint for sustainable development in arid and semi-arid regions. In North Africa, declining renewable water availability, recurrent droughts, population growth and agricultural demand have pushed conventional water resources beyond their renewal capacity. As a result, seawater desalination has evolved from an emergency response to a strategic infrastructure for national water security. However, the rapid expansion of desalination systems has revealed systemic challenges extending beyond water production. Energy consumption, membrane fouling, chemical use, brine discharge and environmental impacts increasingly determine the sustainability and social acceptability of desalination. At the same time, desalination brine—traditionally considered a … Continue reading