Patent ID: 6645382
Filing Date: 2003-11-11
Classification: B01D,C02F

Abstract:
In a head cell apparatus having plural vertically aligned trays that each receive and treat wastewater, a duct for conveying influent to be treated to the apparatus, the duct comprising:a passageway that has an open top surface along at least a portion of its length and an inlet end connectible to an open influent channel positioned at a level above the head cell apparatus to receive an open channel flow of influent and convey the open channel flow downstream; and an outlet end positioned downstream of the inlet end and connectable to the head cell apparatus, the outlet end comprising a plurality of discrete nozzles corresponding in number to the plurality of trays, the nozzles being spaced in a vertical direction and each having at least one orifice, the orifices being positionable relative to the trays such that influent entering the inlet end of the duct travels downwardly and exits the outlet end through the orifices into the respective trays.