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Advantages of Medium-Pressure UV Disinfectors

2023-02-13

Advantages of Medium-Pressure UV Disinfectors

　　 Medium-pressure UV sterilizer This is an ultra-long-life, high-power water treatment sterilization lamp that significantly reduces energy consumption and maintenance intervals. Replacing low-pressure mercury lamps has become a cost-effective choice, saving energy while delivering an ultraviolet output power 100 times greater than that of conventional low-pressure mercury lamps. It can operate in temperature environments as high as 90°C. Medium-pressure UV lamps emit a broader spectrum of ultraviolet light ranging from 200nm to 400nm, with individual lamp powers ranging from 400W to 10kW.

　　Application scope of medium-pressure UV disinfection: It is suitable for all types of swimming pools and effectively disinfects pool water. Medium-pressure UV systems are essential in water treatment because they can emit a broad wavelength range. Only ultraviolet light within the 200–400 nm spectrum can effectively eliminate the odor of chloramines.

　　Characteristics of Medium-Pressure UV Disinfectors: Single-lamp power ranges from 400W to 10kW; high energy efficiency—this high-efficiency germicidal spectrum enables continuous multi-point UV output (100–400nm), whereas low-pressure systems can only emit at 253.7nm, achieving a sterilization rate of up to 99.9%. Operating pressure reaches as high as 16 kg, and the system can withstand temperatures up to 100°C. It effectively degrades organic matter in water. The medium-pressure UV output at 185nm—a short wavelength—is highly effective in decomposing TOC in water, increasing the transmittance to over 97%. Wider wavelength range: it can also emit at 245nm, 297nm, and 340nm, respectively targeting and degrading harmful byproducts such as monochloramine, dichloramine, and trichloramine. This reduces the pungent odor in swimming pools and significantly improves the pool environment. Compact and space-saving design—with a length no greater than 70mm—reduces both the number of UV lamps required and the reactor volume (a flow rate of 969 tons/hour requires only four tubes, resulting in an extremely small footprint). Biological effect: no chemical additives are used, ensuring zero secondary pollution.

　　Ultraviolet disinfection offers advantages such as high efficiency, thoroughness, zero pollution, and no residual substances. In the field of water treatment for swimming pools and spa hot springs, low-pressure UV radiation is primarily used for disinfection, while medium-pressure UV radiation can also facilitate optical decomposition in addition to disinfection—breaking down residual chlorine, chloramines, and oxidized compounds. The AQUA Ike medium-pressure UV sterilizer employs original, imported high-intensity UV lamps with an output wavelength ranging from 200 nm to 400 nm. Its broad-spectrum disinfection capability and thoroughness surpass those of low-pressure single-wavelength lamps.

　　Different types of microorganisms exhibit vastly varying abilities to absorb and respond sensitively to ultraviolet light at different wavelengths. For example, Escherichia coli has an absorption peak at 265 nm, while Cryptosporidium exhibits an absorption spectrum peaking at 260 nm. The AQUA Ike medium-pressure UV disinfection unit emits ultraviolet light within a broad wavelength range from 200 nm to 400 nm. Different types of microorganisms—and even different parts of the same microorganism—can be inactivated by exposure to specific UV wavelengths. Moreover, this device covers the wavelengths of 245 nm, 297 nm, and 340 nm, which are essential for reducing chloramines. By effectively controlling chloramine concentrations, it safeguards personnel safety and prevents corrosion of building materials. Medium-pressure UV disinfection units not only thoroughly disrupt the DNA structure of microorganisms but also damage cell walls and nucleic acids, completely eliminating the possibility of bacterial regrowth and ensuring longer-lasting disinfection effects. At the same time, medium-pressure UV radiation is unaffected by water temperature, resulting in more stable disinfection performance.


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