Two revolutionary concepts announced by Unitor Ships Service A/S of Norway in answer to the problem of preventing environmental damage from oil spills at sea due to collisions and groundings are highlighted. The first is the imaginary double bottom system that involves filling a tanker's cargo tanks to a height of between 1.0m and 2.5m with specially treated seawater prior to loading oil cargo, and that works on an equilibrium principle that limits spillage. The second announcement concerns the Oil Spill Recovery System that involves equipping a tanker with a hi-tech fabric container capable of holding 30,000 tons of oil. The container, located in a special aluminum casing lashed to a deck-mounted launching pad, is connected to a flexible cargo hose that links to onboard pumping equipment--or if this equipment becomes unusable, to portable pumps. Launched and filled with oil from a ruptured tank, the fabric container, which is also fire resistant, can be towed at sea at speeds of 4 to 6 knots without experiencing any adverse effects, and can cope with rough seas.

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    • Journal article
  • Publication Date: 1990-10

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  • Accession Number: 00661704
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM