The BALPURE ballast water treatment system, which received Type Approval in July 2011, has been selected for use on two flattop oceangoing heavy deck cargo barges. The Type-Approved BALPURE ballast water treatment system from Severn Trent De Nora has been selected for use on two oceangoing heavy deck cargo barges being constructed for Norwegian-based Greenway Shipping by Dalian Shipyard, at its shipyard in Dalian, China. The 9,025 dwt oceangoing barges will reportedly be the first new offshore barges to install the BALPURE system.