Patent ID: 6303086
Filing Date: 2001-10-16
Classification: A61L,C02F

Abstract:
An apparatus for treating unsafe water by exposure to ultraviolet radiation, the apparatus comprising:(a) a reactor vessel having a lower chamber provided with an inlet arranged to admit unsafe water flowing into the lower chamber, an upper chamber disposed above the lower chamber, a treatment surface disposed within the upper chamber and facing upwardly within the upper chamber, and at least one conduit arranged to conduct unsafe water flowing upwardly from the lower chamber over the treatment surface, the treatment surface being convex and being arranged to reflect ultraviolet light upwardly,(b) a mercury arc discharge lamp disposed above the treatment surface and being arranged to irradiate unsafe water flowing over the treatment surface, and(c) a concave reflector disposed above the lamp and arranged to reflect ultraviolet light downwardly onto unsafe water flowing over the treatment surface.