Abstract: A device for irradiating liquids including a hollow tube capable of transmitting selected wavelengths of light, a drive motor connected to rotate the tube at a desired speed, a support associated with the tube to permit rotation thereof, one or more elongated light producing lamps exteriorly positioned about the tube, the lamps producing light capable of transmission through the cylinder without undue attenuation, a support for the exterior lamps, one or more elongated light producing lamps interiorly positioned about the tube, and a support for the interior lamps.

Abstract: A method of disinfecting waste water wherein ultraviolet light producing lamps are positioned in lamp modules and contained within quartz lamps jackets and wherein the modules are positioned within a flow of water including removing particulates and films for the lamp jackets wherein one or more of the modules from the flow are removed, transported and inserted into a tank containing a lamp jacket cleaning agent.The invention further includes a cleaning system for removing particulates and films from lamp jackets consisting of a channel through which waste water to be cleaned passes, one or more modules positioned in the channel, the modules containing one or more ultraviolet light producing lamps, each lamp sealed from direct contact with the water by surrounding quartz jackets, the lamps being spaced apart to permit the water to flow there between to expose the water and ultraviolet light rays.

Abstract: An ultraviolet purification device for irradiating liquids with ultraviolet radiation either in an open system or a closed system which includes a frame or vessel provided with a header plate and a spaced apart support grid for supporting therebetween a plurality of quartz jackets. Each jacket is provided with an open end which extends beyond the header plate and in which one or more ultraviolet lamps are disposed in tamdem therein. The arrangement is such that the respective lamps are disposed in rows or banks wherein the respective rows or banks can be independently energized depending upon the flow rate of the liquid. Each lamp is constructed so that the electrical contacts for the respective lamp electrodes project from a common end of the lamp, thereby permitting the lamps to be inserted from one side of the frame or vessel. An improved spacer is also provided for spacially supporting each lamp within its respective jacket.