The Hyde GUARDIAN employs a chemical-free process that combines filtration with ultraviolet disinfection to treat the ballast water of a ship to prevent the spread of invasive species.
Hyde Marine, a subsidiary of Calgon Carbon Corp, will provide two HG1500X-SF70 units and one HG250S for each of the new-build ships, which will be installed in 2012. The tankers are currently under construction at SPP Shipbuilding Co Ltd in Sacheon, South Korea.