Hydro-Optic UV Technology for Boiler Feed Water Dechlorination

摘要

Coal-fired steam generation power applications typically use reverse osmosis (RO) technology to provide high purity feed water for the boiler and steam cycle. As an oxidizer in aqueous solutions, free chlorine generating solutions are commonly injected into the feed lines of the water treatment process at power plants to reduce the microbial load. However, RO membrane elements are easily damaged by strong oxidants and membrane performance warranty terms usually include specification for the allowable level of free chlorine not to exceed a concentration of 0.1 ppm in feed water to the membrane unit. In a typical power plant dechlorination application, the water treatment facility aims to produce water with undetectable levels of free chlorine.