DuPont Awarded Grant from Singapore’s National Water Agency to Increase Sustainability of Desalination for Clean Water Share Article Closed Circuit Reverse Osmosis (CCRO) Technology to reduce energy requirements of desalination systems by 15 percent “As we look to increase access to fresh water, we believe that closed circuit reverse osmosis will prove to be a more sustainable way to purify, conserve and reuse water, including saltwater.” HP Nanda, global vice president, general manager, DuPont Water Solutions WILMINGTON, Del. (PRWEB) ...