About Ultraviolet Sterilizer be used in Water Treatment Plant

Advantages of Ultraviolet sterilizer be used in Water Treatment Plant

1) Ultraviolet disinfection technology has high sterilization efficiency and safe and reliable operation. Ultraviolet disinfection has high inactivation efficiency for bacteria and viruses, and because no chemicals are added, therefore it will not cause secondary pollution to the water body and the surrounding environment.

2) It has a special disinfection effect on Cryptosporidium and Giardia. The conventional chlorine disinfection process has a very low inactivation effect on Cryptosporidium and Giardia, and will produce a large amount of disinfection under higher chlorine dosage. By-products, and UV disinfection can achieve a higher inactivation effect on Cryptosporidium and Giardia at a lower UV dose.

3) It dose Does not produce toxic and harmful by-products, and does not increase the TOC content of in water treatment plant. Ultraviolet disinfection does not change the characteristics of organic matter, and because no chemicals are added, no by-products that are harmful to the human body are produced, and by-products such as TOC and BOD that damage the biological stability of the pipe network are not increased.

4) It can reduce odor and degrade trace organic matter. Ultraviolet rays have a certain ability to degrade various trace organic substances in water, and can reduce the odor and taste of water.

5) Ultraviolet sterilizer equipment has a small footprint, simple operation and maintenance, and low cost. For chlorine disinfection of 50,000 tons of sewage per day, a 130-meter long and 3-meter wide contact channel is required. The area of ultraviolet sterilizer is only 20 meters long and 3 meters wide; the operation and maintenance of ultraviolet sterilizer is simple, and the operating cost is low.

6) The disinfection effect is less affected by water temperature and pH.

Disadvantages of Ultraviolet sterilizer be used in Water Treatment Plant

1) There is no continuous sterilization ability. If the disinfected water encounters a new pollution source, it will be polluted again, and it needs to be used in conjunction with chlorine.

2) Turbidity and suspended solids in water have a greater impact on ultraviolet sterilization and reduce the disinfection effect.

3) The UV lamp casing is easy to scale, which affects the transmission and sterilization effect of ultraviolet light. Therefore, it is necessary to regularly clean the casing and take surface cooling measures to prevent the formation of pipe scale.

4) Bacterial resurrection phenomenon, some bacteria inactivated by ultraviolet irradiation virus bacteria can repair their own damaged tissues with the assistance of light to achieve the purpose of resurrection, and other bacteria may have dark resurrection phenomenon (no need for light);

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