Japan certifies MOL’s ballast water treatment system

30 Jun 2011
FineBallast OZ

FineBallast OZ

Mitsui OSK Lines says that FineBallast OZ, an ozone-based ballast water treatment system co-developed by MOL, MOL Marine Consulting, and others has received a certificate of compliance from the Japanese government.

FineBallast OZ employs the synergistic effect of chemical killing treatment by the oxidation power of active ingredient ozone and physical killing treatment using a specially designed pipe placed in the ballast water piping lines, which combines a strong killing effect and a long-lasting bactericidal effect. Killing treatment is done only once, at the time the ballast water tanks are filled. MOL says there is no need for a chemical agent for ozone supply and storage—the system produces the required amount of ozone as needed, extracting it from air. Micro bubbles of ozone are poured into the system, which achieves a high absorption efficiency and high contact efficiency against plankton and bacteria. Harmful substances remaining in ballast water are extracted by activated charcoal. This has no impact on the environment.

The system was audited based on guidelines set out in the international convention for the control and management of ships’ ballast water and sediments (G8), adopted by IMO. Certification involved a full-scale on-land test of the system by Mitsui Engineering & Shipbuilding and other participant companies and an onboard test on the MOL-operated containership MOL Express. Both tests verified the system’s conformity to the ballast water treatment standard.

The system acquired the final approval under the procedure for approval of ballast water management systems that make use of active substances (G9) by IMO at the end of September 2010.

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