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A Comparison Between Low-Voltage and Medium-Voltage Ultraviolet Disinfectors

2022-06-20

A Comparison Between Low-Voltage and Medium-Voltage Ultraviolet Disinfectors

　　 Medium-pressure UV sterilizer This is a next-generation high-tech product developed on the basis of years of experience in UV disinfection and numerous large- and medium-sized municipal water disinfection projects, involving experts from various disciplines, design engineers, field operators, and water treatment standards developers.

　　 Medium-pressure UV sterilizer Water sterilization and disinfection suitable for swimming pools, hot springs, water parks, and other similar facilities. Disinfection of effluent from medium- and large-scale drinking water treatment plants; removal of chemical contaminants from urban drinking water; degradation of certain recalcitrant organic compounds in industrial wastewater.

　　Comparison between low-voltage and medium-voltage UV disinfectors:

　　However, for swimming pool water disinfection, medium-pressure UV sterilizers have their unique advantages:

　　1. Comparison of UV Sterilization Effects at Medium and Low Pressures

　　Low-pressure UV lamps have high germicidal efficiency at a wavelength of 253.7 nm, but they emit a single, straight-line spectrum with a narrow and short wavelength range. Medium-pressure UV lamps, on the other hand, have a broad wavelength range and can effectively kill many types of bacteria. For swimming pools with low loads and mild contamination, medium-pressure UV lamps can effectively eliminate bacteria.

　　The effect is very obvious.

　　2. Effectively improve the UV transmittance of swimming pool water quality.

　　The penetration rate after complete DNA damage is one of the criteria for evaluating water quality. When ultraviolet light passes through a layer of water, it can easily inactivate and kill microorganisms directly exposed to it. In theory, substances—whether organic or inorganic—absorb ultraviolet intensity, making UV attenuation an ideal method for sterilization and disinfection. The Wuhan virus belongs to the category of enveloped RNA viruses with high infectivity. According to relevant reports, Medium-pressure UV sterilizer The water's transmittance can be increased from 75% to at least 97%.

　　3. The effect of temperature on sterilization efficacy

　　The water temperature in most swimming pools typically ranges from 36 to 28°C or higher—temperatures that exceed the typical evaluation temperatures for common disinfectants and disinfection methods (generally, tap water and wastewater are at lower temperatures than this). The power generation efficiency of low-pressure UV lamps is significantly affected by temperature, whereas the power generation efficiency of medium-pressure UV lamps is largely unaffected by temperature.


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