Vorrichtung zur Aufbereitung von Abwasser, insbesondere von Regenwasser

摘要

Device intended for ensuring the treatment of aqueous effluents, especially rainwater by simultaneously carrying out the degritting, degreasing and settling, which comprises a degritter equipped with a grit chamber, through which passes an upward and then downward flow of the water to be treated, a degreasing surface provided above a part of the degritter and above the feed zone of the settler, and a settler which comprises a feed or presettling tank, a floor, a region for laminar settling and an extraction pit, this device being characterised in that the partition (26) separating the degritter (10) from the settler (14) comprises a flap valve (24) making it possible, when opened, to ensure an unperturbed transfer of the raw water towards the settler and therefore good settling during this stage of filling.