The sterilization range is wide and rapid, and the treatment time is short. Under a certain radiation intensity, general pathogenic microorganisms can be killed in only more than ten seconds. It can kill some germs that cannot be inactivated by chlorine disinfection, and can also control some higher aquatic organisms such as algae and red worms to a certain extent;

There is no continuous disinfection capability, and there may be photoreactivation problems of microorganisms. It is best used in situations where the treated water can be used immediately, there is no secondary pollution in the pipeline, and the biological stability of the raw water is good (generally the organic matter content is required to be less than 10 μg/L);