High Concentration Bottom Mud Dredger “SWAN-3^®”

SWAN-3^® is a dredging vessel specifically designed for dredging high-concentration bottom mud. By applying a newly developed rotating bucket system, bottom mud can be removed under natural conditions, without the necessity of absorbing excessive amounts of water. Since the rotation speed of the bucket is synchronized with the movement of the dredger, the bottom to be dredged is not disturbed, so the amount of diffuse pollution that may occur during the course of dredging is relatively small, compared with other dredging methods. A level cut in the sediment can be maintained because the mud is removed along the plain of the blades of the bucket. Moreover, since the surface course of the mud is calmly removed, thin-layer dredging that is difficult to achieve using conventional methods, can be achieved.