Abstract
Environmental problems have become a very important conditions in recent years. Due to this, the issue of
maritime waste treatment control has been taken up by concerned parties. The discharge of waste from a
maritime vessel is permitted with certain attached conditions. However, the worldwide trend conceming maritime
waste treatment has increased to the point where the regulations conceming this are similar in strength to those
relating to waste treatment on land.
The authors investigated the quantity, content and the treatment method during an extended voyage of the
Nagasaki University training ship, Kakuyo-maru.
As a result of this research, the total of the non-bumable waste amounted to 367kg (aluminium cans : 52kg,
steel cans : 36kg, bottles : 279kg) during a 55 day voyage. In the future, from the viewpoint of the prevention
of air pollution and dioxin discharge it will be up to the fishing industry to halt the incineration of plastics and
reduce the quantity of shipboard waste.
