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What are the types of ultraviolet disinfectors for water tre
browse: Release Date:2019-06-03
The ultraviolet disinfector for water treatment is also called UV disinfector, ultraviolet sterilizer, ultraviolet water treatment equipment, ultraviolet water disinfection equipment, etc. According to the difference of flow boundary, it can be divided into two types: closed type and open-channel type.
Closed chamber UV Disinfector
Closed ultraviolet disinfector belongs to pressure type. It uses metal chamber and ultraviolet lamp with quartz sleeve to seal the disinfected water. It is also called chamber type, pipeline type, and overflow ultraviolet disinfector. According to the relationship between the ultraviolet lamp axis and the direction of water flow, the water flow in the closed ultraviolet disinfector can be parallel or perpendicular to the ultraviolet lamp axis. Parallel system has small hydraulic loss and uniform flow pattern, while vertical system can make water flow turbulent and improve disinfection efficiency.
The size and distribution of light intensity in disinfection reactor will directly affect the inactivation effect of microorganisms. Usually stainless steel or aluminum alloy are polished to improve the reflectivity and radiation intensity of ultraviolet radiation. The number of ultraviolet lamps will be adjusted according to the amount quantity of treated water. Some disinfectors are equipped with spiral blades on the inner wall of the chamber to change the flow state and to avoid stagnant water and pipeline blockage. The turbulence and sharp edges of the blades will break up suspended solids so that the attached microorganisms are completely exposed to ultraviolet radiation. With that the disinfection efficiency can be improved.

The closed chamber UV disinfector is typically used in medium or small water process or in situation requiring pressure, or the UV reactor is better not used in open-channel.
Water supply disinfection: tap water, surface water (well water, River water, Lake water, etc.); 
Pure water disinfection: industrial supply water for food and beverage, electronics, medicine, injection, cosmetics, and other industries; 
Water disinfection in Aquaculture: aquaculture, shellfish purification, poultry, livestock raising, irrigation water for pollution-free agricultural bases, etc.
Circulating water disinfection: swimming pool, landscape, industrial circulating cooling water etc.
Others: reused water disinfection, water algae removal, secondary supply water disinfection, residential water, villa water and so on.
Open-channel UV disinfection system
Open ultraviolet disinfector is also called open-channel ultraviolet disinfector or ultraviolet panel disinfector. The process water flows through the ultraviolet disinfector under gravity and microorganisms in the water is inactivated when flowing through the system.

This product is suitable for medium and large water treatment and is mostly used for disinfection treatment of effluent water in industrial wastewater discharge and domestic wastewater discharge in municipal sewage treatment plants, factories, and hospitals.