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Disinfection ultraviolet germicidal lamp use the matters needing attention?

by:LiangYueLiang     2020-05-13
Disinfection ultraviolet germicidal lamp is actually due to a low pressure mercury lamp. The low pressure mercury lamp is to use the low pressure mercury vapor ( < 10 - 2Pa) Be intensified and emit ultraviolet light, its hair spectral line mainly have two: one is 253. 7 nm wavelength; Another is 185 nm wavelength, and the two are invisible to the naked eye of ultraviolet light. Some domestic are not qualified to uv germicidal lamp can't supply the rest of the disinfection, when dealing with water from the reactor, some are uv damage under light revival mechanism of microbes will correct damage the DNA molecule, regenerates the bacteria. Therefore, to further research the light principle and conditions of the resurrection, determine the minimum avoid light raised ultraviolet light intensity, time or dose. Quartz tube outer wall cleaning operation is the key of the work and maintenance. When sewage flows through uv disinfector, many of the inorganic impurities deposition and adhesion in the outside casing wall. Especially when organic matter content is higher in sewage more simple form dirt membrane, simple and microbial growth form biofilms, these will contain uv transmission, affect disinfection effect. According to different water quality, therefore, it is necessary to choose reasonable scaling prevention measures and cleaning device, is developed with automatic cleaning function of uv sterilizer. Domestic uv lamp for ZhiGuanXing low-pressure mercury quartz ultraviolet ray sterilizing lamp, of the national industry standard lamp is one of the most high power for 4 w, and useful life is generally 1000 ~ 3000 h, and imports of low-pressure lamp useful work time of up to 8000 ~ 12000 h, medium pressure tube also can reach 5000 ~ 6000 h. Using home-made tubes, by contrast, will increase maintenance costs, therefore, developed to produce long-life ultraviolet lamp or the introduction of foreign advanced uv lamp directly produce technology is a problem to be solved. Uv disinfection system bidding in sewage plant in our country, some because many import of industrial wastewater, sewage plant makes the discharge of sewage chroma deepened, but the bid documents of sewage ultraviolet transmittance parameters still choose foreign supply value, form differs from the actual situation of domestic sewage is very big, uv equipment for the future work to the disinfection requirements, left a difficult to overcome. Is the bright moon to let's account of the disinfection ultraviolet germicidal lamp use the matters needing attention, we can brief understanding and have a look. Content is for reference only, want to know more questions you can contact our factory.
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