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UV Systems
UV systems (Ultraviolet radiation) are an effective method for water disinfection, that is, for the elimination or reduction of pathogenic microorganisms such as bacteria, viruses, and protozoa. This process is based on the ability of ultraviolet radiation to break down the DNA or RNA of microorganisms.
Source of Ultraviolet Radiation: UV systems for water disinfection use UV lamps, usually mercury lamps, which emit ultraviolet radiation primarily at the wavelength of 254 nanometers (nm). This wavelength is particularly effective in causing damage to the DNA or RNA of microorganisms.
Water Passage: Water passes through a vessel or channel where it is exposed to UV radiation. The contact of the water with the UV radiation must be sufficient to ensure the proper dose of radiation for disinfection.
Operating Conditions: The effectiveness of UV radiation depends on several factors, such as the clarity of the water, the presence of other chemicals that may absorb or scatter the radiation, and the power and duration of exposure to UV radiation.
Maintenance and Replacement of Lamps: UV lamps have a limited lifespan and must be replaced periodically to maintain the effectiveness of disinfection. Also, the system must be regularly maintained to avoid deposits of salts or other pollutants that may reduce the water's permeability to UV radiation.
Advantages: It is an environmentally friendly method, as it does not use chemical substances and does not produce dangerous by-products. It is also fast and can eliminate a wide range of microorganisms.
Source of Ultraviolet Radiation: UV systems for water disinfection use UV lamps, usually mercury lamps, which emit ultraviolet radiation primarily at the wavelength of 254 nanometers (nm). This wavelength is particularly effective in causing damage to the DNA or RNA of microorganisms.
Water Passage: Water passes through a vessel or channel where it is exposed to UV radiation. The contact of the water with the UV radiation must be sufficient to ensure the proper dose of radiation for disinfection.
Operating Conditions: The effectiveness of UV radiation depends on several factors, such as the clarity of the water, the presence of other chemicals that may absorb or scatter the radiation, and the power and duration of exposure to UV radiation.
Maintenance and Replacement of Lamps: UV lamps have a limited lifespan and must be replaced periodically to maintain the effectiveness of disinfection. Also, the system must be regularly maintained to avoid deposits of salts or other pollutants that may reduce the water's permeability to UV radiation.
Advantages: It is an environmentally friendly method, as it does not use chemical substances and does not produce dangerous by-products. It is also fast and can eliminate a wide range of microorganisms.