As extreme weather events become more prevalent with climate change, droughts are gripping the planet. But despite being one of the driest places in Sub-Saharan Africa, the capital city of Namibia, Windhoek, manages to keep clean, safe water flowing. How do they do it? They turn sewage into drinking water in just 24 hours using a process known as Direct Potable Reuse (DPR).
And Singapore is at it too!
In 2003, Singapore’s national water agency launched an unprecedented program to provide more than 50% of their nation’s water supply by recycling wastewater. The program had been planned for decades to ensure the island nation never ran out of clean water. Francis de los Reyes explains the science of this type of wastewater treatment in the video below.