Method and apparatus for removing plants or other material existing in water

An apparatus for removing plants or other material existing in water by means of a collector head connected to rest on a work machine moving on land and/or in a water system, whereby the apparatus includes a collector head which is movable in water in the plant layer, and the collected plants or other material are transferrable by means of a pump and transfer pipes included in the collector head, either onto land or to a cargo area floating on water, such as a barge, and the apparatus further including at least two feeder drums placed in the collector head and rotatable on their own shafts, with which plants or other material may be shredded and led from between said feeder drums onto the pump located behind said feeder drums, whereby said feeder drums have conveyor/shredder members located one over the other at a distance from each other and protruding from the surface of the drum, wherein at least the outermost tips of at least some of the conveyor/shredder members are directed forward in the direction of rotation, and in that the passing of said plants or other material to the pump is ensured by means of guide members formed as counter blades and guiding the flow, whereby gaps are adapted between said guide members, located at the division of the conveyor/shredder members, which guide members and gaps can provide counter blades for the conveyor/shredder means, and entanglement of plants or other material around the drums is preventable.