Method of treating water by ballasted flocculation/settling, which includes a continuous measurement of the ballast, and corresponding installation

摘要

The subject of the invention is a method of treating water by flocculation (4)/settling (5), comprising a step (3) for injecting a ballast and a step (7) for recirculating said ballast, characterized in that it includes a step (11) for continuously measuring the concentration of said ballast and a step of comparing said measurement with reference values. The subject of the invention is also a water treatment plant for implementing the method.