Advantages and prospects of ultraviolet sterilization

UV has been used in water treatment for decades, but its application is limited due to its complex technology and high cost. But now foreign ultraviolet technology has been widely used, banning the traditional chlorination disinfection, and the price is lower than the traditional chlorination disinfection. In the 1970s, due to the intensification of water pollution and the improvement of public health awareness, people were forced to adopt new means on the basis of traditional water treatment technology to ensure that the water quality of water supply met safer drinking water standards. After nearly 20 years of research and practice, the composite application technology mainly composed of ultraviolet has become the first choice of advanced purification technology of water supply because of its good treatment effect.

1. Ultraviolet light can be used to disinfect the effluent of urban sewage treatment, which can meet the current requirements of landscape and greening water in China;

2. The technology has the characteristics of no secondary pollution and has broad application prospects;

3. Low energy consumption, low operation cost, high degree of automation and convenient maintenance.

In addition, the sewage disinfected by ultraviolet can be reused in many fields to realize the reuse of sewage. It can be used to irrigate farmland, forest land and lawn to avoid the damage of chemical disinfectants to plants. It can be used for groundwater reinjection to prevent the formation blockage caused by the re reproduction of microorganisms due to their adaptability to chemical disinfectants. With the in-depth study of ultraviolet disinfection mechanism, the continuous development of ultraviolet technology and the continuous improvement of disinfection device design, ultraviolet disinfection is expected to become one of the main methods to replace traditional chlorination disinfection.