| 摘要 |
<p>The object of the invention is a method and system for the removal of sludge from a fish farm pond. The sludge is led from a net bag (5) to a collection tank (3) through an input connection (10) and the sludge is removed from the collection tank (3) to the output line (6B). During the removal of the sludge the input connection (10) of the collection tank (3) is closed by a valve (12) and a pressure medium is led to the collection tank (3), when the sludge leaves the lower part of the collection tank (3) to the output line (6B).</p> |
