System for cleaning rivers and waterways in general

A system (100) for cleaning rivers and waterways (F), comprising:

• a plurality of floating or non-floating modules (20),
• wherein each module (20) comprises a floating or non-floating body (21) and one or more blades (22) directly or indirectly mounted on said body (21), and
• wherein said module (20) is configured to rotate, due to a rotation of said one or more blades (22) caused at least by a thrusting force (W) exerted by water, around an axis (Z) that is substantially orthogonal to a surface of the water when the module (20) is positioned in the water, and
• wherein said axis (Z), when substantially orthogonal to a waterline, forms an angle included between 45° and 90° with the waterline;
• and
• constraining means (10) configured to constrain two or more of said modules (20) so that they are substantially aligned with one another along a main direction (X),
• wherein said constraining means (10) are configured to ensure that a minimum clearance is provided between each of said modules (20) and an adjacent module, so that said modules (20) are not in contact with each other during their normal operation, and to further ensure that each of said modules (20), through its own rotation, pushes waste towards a module (20) adjacent thereto.