INSTALLATION FOR THE TREATMENT OF INTEGRATED FLOOD FLOODING AND DECANTING WATER AND CORRESPONDING METHOD

摘要

Plant for the treatment of water comprising: means for supplying (1) water previously coagulated to be treated, a flocculation-settling device (11) provided with means for dispensing (5) at least one flocculating reagent, distribution means (6) for at least one ballast, means for extracting sludge (20d), means for discharging (9) treated water, means for separating (14) said ballast contained in said weighted sludge, and recycling means (8) of said ballast thus cleaned to said flocculation-settling device (11), characterized in that: said flocculation-settling device (11) comprises a single vessel (12) in the lower part of which is arranged a stirrer (13); said single tank (2) is provided in its upper part with slats (10); said lamellae are separated from said agitator (13) by a distance "d" of between about 0.5 meters and about 3 meters. Method using this installation.