The role of uv sterilizer in water treatment and characteristics

by:Tepro     2020-04-12
Uv sterilizer lampis a broad-spectrum sterilization, to kill all microorganisms, including bacteria, n/med tuberculosis bacterium, virus, spores, and fungi. It has been a lot of industry applications in disinfection process. Ultraviolet (uv) for wavelength between 16 - 397 nm of electromagnetic wave, the photon energy is low, not enough to make the atoms or molecules ionization, so belong non-ionizing spoke. According to the wavelength of ultraviolet ray can be divided into A, B, C wave and vacuum ultraviolet (uv) light. In wavelength 160 - 200, vacuum UV is effective for the TOC removal, wavelength at 185 nm, the TOC removal efficiency. With ultraviolet ray is C wave uv light sterilizer disinfection, its wavelength range is 200 - 275 nm, the strongest antiseptic effect band is 250 - 270 nm, the band will produce strong enough doses of uv irradiation to liquid or air, instantly destroy all sorts of bacteria, viruses and other organisms in tissue DNA, RNA, when the virus or bacteria in the band, absorbed more than 6000 - 10000U。 W。 The SEC/cm2 dose, the vital center of DNA ( DNA) Is damaged, make its immediate death or loss of ability to reproduce. application in water treatment system is 1, the TOC removal; 2, disinfection sterilization; 3, ozone decomposition; 4, remove chlorine and chloramine; Characteristics 1, can effectively kill a variety of bacteria, viruses and other organisms; 2, through the photolysis, can effectively degrade the chlorine in the water; 3, simple operation, convenient maintenance; 4, cover an area of an area small, treatment of water; 5, no pollution, environmental protection sex is strong, won't produce side effects; 6, low investment cost, low operating cost, convenient installation; 7, using the principle of optical design unique wall treatment technology, to maximize the use of ultraviolet ray cavity in the body, multiply the sterilization effects. The instructions for use and precautions of 1, no direct exposure to the sun's ultraviolet rays to the human body skin; 2, ultraviolet (uv) to the work environment temperature and humidity have certain requirements: above 20 ℃, irradiation intensity is relatively stable; Between 5 ~ 20 ℃, illuminate intensity increase with increasing temperature increase; Relative humidity under 60% when, sterilization ability is stronger, humidity 70%, microbial reduced susceptibility to ultraviolet rays, humidity increased to 90%, the sterilization force decline 30% ~ 40%. 3, water disinfection, the thickness of the layer should be less than 2 cm, water flow out of date to accept 90000 uw. More than S/cm2 dose can achieve the effective water disinfection. 4, ultraviolet tube and casing surface dirt and grease, prevents ultraviolet light through, and often should ( Usually once every two weeks) Wipe with alcohol, acetone and ammonia. 5, tube starts, heating need several minutes to stable state, the terminal voltage is higher. If closed immediately reopen, often more difficult to start, and easy to damage and reduce the service life of the arranged, which should not be commonly frequent startup.
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