DISPOSITIF D'AERATION POUR SYSTEME DE FILTRATION D'EAU A MEMBRANES IMMERGEES, INCLUANT UN PLANCHER POURVU DE MOYENS D'INJECTION D'UN GAZ ET D'AU MOINS UN SYSTEME D'EQUILIBRAGE DES PRESSIONS

摘要

An aerating device for a water treatment system includes an upper and lower chamber separated by a partition. The upper chamber includes a plurality of immersed membranes for removing contaminants from the water. The lower chamber includes a gas inlet and a water inlet for directing gas and water to be treated respectively into the lower chamber. The water inlet is disposed at a lower depth in the lower chamber than the gas inlet. A plurality of air dispersers extend through the partition from the lower chamber to the upper chamber for directing gas from the lower chamber to the upper chamber to aerate the immersed membranes. Finally, the device includes at least one passageway extending through the partition from the lower chamber to the upper chamber for directing water to be treated from the lower chamber to the upper chamber.