The powder that can turn sludge into clean drinking waterRion NakayaFebruary 18, 2019October 12, 2021
Turn human waste into drinking water – Janicki OmniprocessorRion NakayaJanuary 8, 2015October 12, 2021
Poop Guy: A dad who is revolutionizing sanitation in Pune, IndiaRion NakayaMarch 25, 2014September 2, 2022
