Mitsui O.S.K. Lines, Ltd. (MOL) announced that an ozone-based ballast water treatment system earned a certificate of compliance from the Japanese government. 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 the International Maritime Organization (IMO).
Certification required a full-scale on-land test of the system and an onboard test. Both tests verified the system’s complete conformity to the ballast water treatment standard. The system also acquired the final approval under the “Procedure for Approval of Ballast Water Management Systems that Make Use of Active Substances (G9)” by the IMO.
Ozone is an extremely powerful biocidal agent that is produced on site by electric discharge using air. The ozone is mixed with the water to be treated and the micro organisms are killed by oxidation.