Patent ID: 7628926
Filing Date: 2009-12-08
Classification: C02F

Abstract:
1. A liquid disinfection system having built-in monitoring capabilities, the system comprising: a conduit to carry flowing liquid to be disinfected, wherein the conduit comprises an inlet to receive the liquid, an outlet to discharge the liquid and walls transparent to ultraviolet radiation; an illumination source located within a transparent sleeve, said transparent sleeve immersed in the flowing liquid to disinfect the liquid when passing through the conduit; a first light detector located externally to the conduit to detect light emitted by the illumination source, such that a first light path between the first light detector and the illumination source does not traverse the liquid; and a second light detector located externally to the conduit to detect light emitted from the illumination source such that a second light path between the second light detector and the illumination source traverses the liquid and exits through the walls of the conduit, the second light path being longer than the first light path.