Patent ID: 6773608
Filing Date: 2004-08-10
Classification: A61L,B01J,C02F,Y02A,Y02W

Abstract:
A process for treating an aqueous liquid, the process comprising the steps of:passing the liquid by force of gravity through a treatment area, the treatment area comprising a series of walls, which walls are spaced and oriented to define an upwardly open trough therein, the trough defining a flow path and having an inlet end and an outlet end, for the liquid to flow under the force of gravity under ambient pressure such that the liquid flowing therethrough travels in alternatingly first and second directions, generally opposite to each other, between the inlet end and the outlet end of the trough, the liquid having an upper surface exposed to ambient pressure; disrupting the flow of the liquid as it passes through the treatment area by means of a floor of the trough being shaped to promote uneven flow of the liquid as it passes through the trough to direct lower portions of the liquid in contact therewith toward the surface of the liquid; and exposing the upper surface of the liquid to UV light emitted from a lamp spaced therefrom.