Patent ID: 9725334
Date: 2017-08-08
CPC Classifications: B03D,C02F

Claim:
1. A rapid flotation device for treating water laden with suspended matter (MES), comprising: structure defining a mixing zone and a flotation zone, the mixing zone and flotation zone separated by a wall above which the liquid for treatment, coming from the mixing zone, passes, the flotation zone comprising a bottom and a perforated floor located toward the bottom of the flotation zone, the perforated floor situated above a sole, a float water discharge being provided under the perforated floor leading to an outlet system, float water flowing from the flotation zone toward the outlet system, wherein: structure defining at least two separate canals, oriented in a direction of flow of the float water, are provided under the perforated floor and under any works that may extend the perforated floor, leading to upstream of the outlet system, a downstream end of the canals is open and situated above a level of the perforated floor, and a distinct discharge means for removing accumulated sludge is provided for each canal, at a downstream bottom part of each canal.