| 摘要 |
<p>Method for purging sludge from the bottom of a water area, more particularly by suction dredging, in which method the bottom sludge is pumped with an underwater pump to the shore, to a barge or similar, and in which method the pump (4) is mechanically connected to a body (21) floating on the water surface (3), wherein the floating body (21) is unmanned during the dredging work, and the dredged sludge is processed during the dredging work in a pre-dryer (27), which removes at least 50% by volume of the water contained in the pumped sludge as a continuous process, and the removed water is led back into the water area.</p> |
