Abstract: There is described an on-line device for controlling a fluid treatment process configured to inactivate a microorganism in a flow of fluid using ultraviolet radiation and a chemical disinfectant. The device includes: a memory for receiving a calculated database of dose response for the ultraviolet radiation and for the chemical disinfectant for a fluid treatment parameter; means to obtain input data about the fluid treatment parameter from the process; means to compare the input data with calculated database; and means to adjust one or more of the amount ultraviolet radiation and the chemical disinfectant added to the flow fluid in response to a difference between the input data and calculated database. There is also described a process for controlling a fluid treatment process configured to inactivate a microorganism in a flow of fluid using ultraviolet radiation and a chemical disinfectant.

Abstract: There is described an on-line device for controlling a fluid treatment process configured to inactivate a microorganism in a flow of fluid using ultraviolet radiation and a chemical disinfectant. The device comprises: a memory for receiving a calculated database of dose response for the ultraviolet radiation and for the chemical disinfectant for a fluid treatment parameter; means to obtain input data about the fluid treatment parameter from the process; means to compare the input data with calculated database; and means to adjust one or more of the amount ultraviolet radiation and the chemical disinfectant added to the flow fluid in response to a difference between the input data and calculated database. There is also described a process for controlling a fluid treatment process configured to inactivate a microorganism in a flow of fluid using ultraviolet radiation and a chemical disinfectant.

Abstract: An apparatus for irradiating fluids with UV including a reactor vessel (10) having a fluid inleT (12), a fluid outlet (14) and a reaction chamber (16); a plurality of UV lamps (18a–d) extending across the reaction chamber (16) and substantially perpendicularly to an axis (A) extending between the fluid inlet (12) and the fluid outlet (14); an upper fluid diverter (22) and a lower fluid diverter (24) extending across the reaction chamber (16) substantially parallel to the lamps (19a–d) and positioned downstream of at least one upstream UV lamp (18a, b), wherein the upper and lower fluid diverters (22, 24) are positioned to direct fluids toward at least one UV lamp (18c, d) downstream of the upstream UV lamp (18a, b).

Abstract: An apparatus for irradiating fluids with LV including a reactor vessel (10) having a fluid inleT (12), a fluid outlet (14) and a reaction chamber (16); a plurality of UV lamps (18a-d) extending across the reaction chamber (16) and substantially perpendicularly to an axis (A) extending between the fluid inlet (12) and the fluid outlet (14); an upper fluid diverter (22) and a lower fluid diverter (24) extending across the reaction chamber (16) substantially parallel to the lamps (19a-d) and positioned downstream of at least one upstream UV lamp (18a, b), wherein the upper and lower fluid diverters (22, 24) are positioned to direct fluids toward at least one UV lamp (18c, d) downstream of the upstream UV lamp (18a, b).

Abstract: A modular ballast enclosure for use in a fluid disinfection system. The enclosure has an enclosure wall, preferably comprising a thermally conductive material, and at least one ballast within the enclosure wall for powering a lamp module. At least one portion of the enclosure wall is adjacent to a lamp module in a fluid channel. The enclosure also has a receptacle on the modular ballast unit adapted to receive a connection from the lamp module.