Patent ID: 6940075

Claim:
A disinfection reactor for disinfecting a liquid by exposing the liquid to ultraviolet light, said reactor comprising: a. a reactor vessel defining an enclosure, the reactor vessel including a flow channel and a liquid inlet for receiving liquid to be treated and a liquid outlet through which treated liquid passes; b. at least two spaced, tubular ultraviolet lamps positioned between the liquid inlet and the liquid outlet and having their respective longitudinal axes positioned substantially transversely relative to the direction of liquid flow through the flow channel; c. a plurality of liquid guide surfaces positioned within the reactor vessel for guiding liquid to flaw over the at least two ultraviolet lamps for exposure of the liquid to ultraviolet light, wherein the guide surfaces define at least one converging flow section upstream of the ultraviolet lamps, and wherein liquid flowing through the reactor vessel traverses a converging flow pathway providing a reduced cross-sectional area flow pathway adjacent to the ultraviolet lamps for enhancing disinfection efficiency.