There is a growing concern about the damage to aquatic ecosystem caused by immigration of non-indigenous species. It is estimated that more than 10,000 million tons of ballast water is transported by shipping activities annually, and ballast water has...
There is a growing concern about the damage to aquatic ecosystem caused by immigration of non-indigenous species. It is estimated that more than 10,000 million tons of ballast water is transported by shipping activities annually, and ballast water has been recognised as a major vector for the transplant of aquatic species across bio-geographical boundaries. The problem of harmful aquatic organisms in ballast water was first raised at International Maritime Organization (IMO) in 1988. And the international convention for the control and management of ships' ballast water and sediments was adopted at MEPC and it's diplomatic conference of IMO at February 2004. To develop the ballast water control and management technology to meet the standard of IMO convention, ballast water treatment system using the sodium hypochlorite are being studied now.