Floating cell and island with a floating macrophyte filter

1. A floating cell with a floating macrophyte filter that can be installed in a chamber containing a volume of fluid to be filtered, the cell comprising:

a layer with a floating macrophyte filter between a perimeter and a centre of the island arranged to filter a flow filtration;

supporting means comprising:

peripheral structural means comprising a plurality of peripheral girders defining a perimeter;

internal structural means comprising a plurality of radial girders and internal girders defining a framework;

a central node to define a central cavity comprising a plurality of central connecting means connecting the central node with a first end section of radial girders;

peripheral connecting means connecting peripheral girders together at each end and peripheral girders at one end with a second end section of radial girders;

internal connecting means connecting internal girders together at each end, internal girders at one end with peripheral girders at a intermediate point and internal girders at one end with radial girders at an intermediate point;

flotation means comprising:

central flotation means comprising a plurality of central floats enclosed inside the central cavity;

peripheral flotation means comprising a plurality of peripheral floats connected to the peripheral girders.

2. A floating cell with a floating macrophyte filter in accordance with claim 1 further comprising:

containment means to limit a volume of fluid lying under the cell comprising:

a waterproof sheet connected to the peripheral girders;

inlet means arranged to receive an influent, a flow of fluid to be filtered;

outlet means arranged to evacuate an effluent, a filtered flow of fluid;

inlet conduit means connected to the inlet means to lead the influent inside the waterproof sheet;

outlet conduit means connected to the outlet means to lead the effluent outside the waterproof sheet;

discharge means to drive the influent, the flow filtration and the effluent.

3. A floating cell with a floating macrophyte filter in accordance with claim 2 , the outlet conduit means arranged to lead the effluent to a deep level in the chamber.

4. A floating cell with a floating macrophyte filter in accordance with claim 2 , the inlet conduit means arranged to lead the influent to a selected level between a deep level in the chamber and a surface level in the chamber.

5. A floating cell with a floating macrophyte filter in accordance with claim 2 , the discharge means being located at the peripheral connecting means.

6. A floating cell with a floating macrophyte filter in accordance with claim 1 , the peripheral floats being polyethylene pipes sealed at both ends.

7. A floating cell with a floating macrophyte filter in accordance with claim 1 , the central floats being drums sealed at both ends.

8. A floating cell with a floating macrophyte filter in accordance with claim 1 further comprising anchoring means for anchoring the cell to a fixed point.

9. A floating cell with a floating macrophyte filter in accordance with claim 1 , further comprising access means defining a gangway to connect the perimeter to the centre.

10. An island with a plurality of floating cells with a floating macrophyte filter in accordance with claim 1 , comprising a connection means arranged to connect a cell with another adjacent cell by the peripheral connecting means.