What’s dredging

Port is a social infrastructure comprising our
living and economical and industrial activities by
handling 99.7% of export and import cargo.
We contribute to affluent living by "dredging" that
secures water depth and area necessary for a large
vessel's navigation by excavating soil on seabed.

Utilize soil (Recycle)

We send sediment to reclamation

site for recycle with environmentally-

friendly-method.

Dredged material is used for reclamation that converts the sea into land.Our work vessel can send soil to reclamation site by pipeline.This reduces the burden on environment, and is also efficient and economical method.We have two unloading technology.One is "Air pressure vessel". That can send soil through pipeline with the help of pressured air to reclamation site.The other is "Barge unloader vessel". That can make the mixture of soil and sea water on the barge, sucks it with pump and send it through pipeline to reclamation site. Our technology is high evaluated as environmentally-friendly-methods among the marine concerned.

Air pressure vessel AP 1660 RYOSEI MARU

Barge unloader vessel P8160 RYOSEI MARU