Ultraviolet sterilizer

The principle of ultraviolet disinfection is to use ultraviolet light of appropriate wavelength to destroy the microorganisms in the body cellsDNA(deoxyribonucleic acid)perhapsRNA(Ribonucleic acid)The molecular structure causes growth cell death and(perhaps)Regenerative cell death achieves the effect of sterilization and disinfection. Through experiments, the effective wavelength range of ultraviolet sterilization can be divided into four different bands:UVA（400～315nm）TheUVB（315～280nm）TheUVC（280～200nm）And vacuum ultraviolet radiation（200～100nm）. Among them, only the ones that can reach the Earth's surface through the ozone layer and clouds areUVAandUVBpart. In terms of sterilization speed,UVCWithin the range of microbial absorption peak, it can be1sInternally, by destroying microorganismsDNAStructure kills viruses and bacteria, whileUVAandUVBDue to being outside the absorption peak range of microorganisms, the sterilization rate is very slow and often takes several hours to achieve the sterilization effect. In actual engineering, within a few seconds of hydraulic retention (irradiation) time, this part actually belongs to the ineffective ultraviolet part. The penetration ability of vacuum ultraviolet light is extremely weak, and quartz with extremely high transmittance is required for the lamp tube and sleeve. It is generally used in the semiconductor industry to degrade waterTOCNot used for sterilization and disinfection. Therefore, the ultraviolet disinfection mentioned in water supply and drainage engineering actually refers toUVCdisinfect UV disinfection technology is based on modern epidemic prevention, medicine, and optodynamics, utilizing specially designed high-efficiency, high-strength, and long-life methodsUVCUltraviolet light in the wavelength band can directly kill various bacteria, viruses, parasites, algae, and other pathogens in flowing water, achieving the purpose of disinfection.