Method for removing sludge or mud from the bottom of a water area.

摘要

The invention relates to a method and apparatus for the removal of mud from the bottom of a water area by injecting water into said mud which injection according to the invention is done in such a way that the mud layer is changed into a mud layer having a thick liquefied condition which mud layer then by its higher specific mass by itself flows towards a lower level where it is taken away by means of a pump or by means of a natural flow such as the flow of a river.