Ecochlor and Argo Navis have recently installed a BWTS onboard SCF Novoship Technical Management’s tankers NS Stream and sister ships NS Consul and NS Century.
The NS Stream is a medium range, ice class, oil/chemical tanker built in 2006. Submerged ballast pumps, as well as situating portions of the treatment system in both hazardous and non-hazardous zones, led to a complex engineering design and installation for the Ecochlor retrofit. It is an ice class vessel that operates in waters as low as -30 °C., as the Ecochlor treatment system and filters have to be maintained at temperatures above 0 °C, additional piping was installed to heat the space.
The NS Consul and NS Century are tankers with ballast pumps located in the cargo pump room. This allowed for the installation of the ballast water filter in the cargo pump room in close proximity to the ballast pumps. However, the ballast pump capacity on these ships is high, which means large filters were needed. To install the filters in their final location, temporary openings had to be cut into the ship because they would not fit through the existing openings.
Ship Efficiency Review News
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