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Application advantages of UV disinfection applications and sewage UV sterilizers

The application and research of UV sterilizer in water treatment can be divided into two units: drinking water UV sterilizer and sewage UV sterilizer. In recent years, the disinfection mechanism, process design, light source characteristics, system maintenance, etc. Aspects of these topics provide an in-depth study of the application of UV sterilizers.

The application and research of drinking water UV sterilizer should proceed from the actual situation of water sources in China, and develop UV disinfection technology suitable for water sources in my country. The stability of the network water quality. Tianjin TEDA UV disinfection project for tap water has been in operation for 3 years as the first demonstration project of UV disinfection of drinking water designed and invested at the same time as the water purification process in China. Some experts and scholars have conducted in-depth research and summary on the application of Tianjin TEDA UV disinfection project.

UV water filter with smart flow control switch

In the application of sewage ultraviolet sterilizer, the current application of ultraviolet disinfection technology in my country's sewage field has relatively large problems. Defects in the sterilizer, etc. It is necessary to solve the main technical problems existing in the application of sewage ultraviolet sterilizers in my country and promote the rapid application and development of ultraviolet disinfection technology.

My country belongs to a country that is relatively short of freshwater resources. In recent years, with the continuous improvement of living standards, my country's sewage discharge shows an upward trend year by year. In order to improve the sewage treatment rate, a large number of sewage treatment plants have been built in various provinces and cities in my country. And a series of advantages of UV disinfection technology make sewage UV sterilizer widely used in sewage treatment plants.

The advantages of the application of sewage UV sterilizer:

1. Low energy consumption, the energy consumption of sewage ultraviolet sterilizer for sewage treatment is 30-60 watt-hours/m3; for surface water treatment, it is 15-50 watt-hours/m3; for groundwater treatment, it is 2-10 watt-hours/m3, that is Said to be only 1/4 –1/8 of the total energy consumption of the ozone system;

2. In terms of compactness, UV sterilizers are stronger than chlorination systems and ozone systems;

3. The safety requirements for electrical appliances are lower. UV sterilizers generally use 110, 220 and 380 volts for power supply, while ozone systems use 8-30 kV. The former has lower requirements for electrical appliances;

4. Compared with chlorination and ozone, the use of ultraviolet disinfection will not change the oxidation characteristics of water, and can improve the life of pipes and auxiliary equipment;

5. The use of sewage UV sterilizer in the process of sewage treatment will not produce dangerous gas (or liquid) process components (chlorine, ozone), which can ensure that the system has a large safety factor and a large reliability factor;

6. Compared with the oxidation process sewage treatment, the ultraviolet disinfection technology will not produce any side effects when the irradiation dose is too large;

7. The cost is lower. When the drinking water UV sterilizer and sewage UV sterilizer process is applied to the existing natural water and sewage purification system, it does not require special movement of the sub-modules of the system, and does not require the establishment of another Ventilation system and special protective equipment, no special requirements for high pressure work (these are particularly difficult in rooms with open water surfaces). Compared to ozone action, there is no need to introduce additional elements into the process system (such as pump stations, contact vessels, etc.);

8. The sewage UV sterilizer system has higher reliability and simple operation in sewage treatment. Much simpler, much more reliable and much cheaper than using an oxidative process (chlorine or ozone).