Cleaning procedures and cleaning system for lakes and marshes

A process for the purification of water in a particular area separated treatment water of a lake / sump comprising the steps of: - formation of a completed treatment water area at the mouth of a flowing into the lake / river swamp; - removal of water from the water treatment area for the separation and removal of contaminants from water; - discharge of treated water, have been separated from the impurities and eliminated outside the treatment water area.