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UV Water Sterilizer Operating Principle

by:ShunXinda      2020-06-17
It's generally known that the seven kinds of light (red, yellow, orange, green, indigo, blue and purple) are produced by the different wave length of the light. Ultraviolet (UV) is also a kind of light which is of high energy. The wave length of ultraviolet ranges from 40nm to 400nm, so this short wave cannot be seen by human eyes. Ultraviolet is further divided into ultraviolet A radiation (UVA), ultraviolet B radiation (UVB), ultraviolet C radiation (UVC) and vacuum ultraviolet radiation. UV has strong bactericidal action and can destroy the bacteria and virus which are harmful to human health. The sterilization principle of UV is to destroy the DNA structure of the vital center by irradiating the cells and virus. In this case, protein which is the component of this microbe can not be formed as it used to. Then the cells or virus will die immediately or lose its reproduction capacities. Generally, UV can achieve its goal of sterilizing in a few seconds. As a matter of fact, all the microbes are sensitive to UV. Therefore, UV water sterilizer has excellent qualifications in water treatment. Ultraviolet water sterilizer has many advantages in water treatment, such as immediate and thorough sterilizing, water quality not affected, simple operation and low maintenance cost. Speed & Efficiency The sterilizing speed of UV is much faster than that of ozone and chlorine. The sterilizing of ozone and chlorine may take ten to twenty minutes, while, high intensity UV only needs a few seconds. Technology of ozone and chlorine sterilizing can not kill the parasites (such as cryptosporidium and giardia) which are more harmful for human body. What's worse, traditional chlorine sterilizing may even produce gano-chlorine which is carcinogenic for our health. Ozone sterilizing may have ozone in this air which will do harm to the physical and mental health of the stuff working around. Luckily, UV is effective to almost all the bacteria, virus, parasites, pathogens and algae. It will not cause any secondary pollution or leave any toxic substances in the water. Simple Equipment Because of its high efficiency in sterilizing, uv water sterilization has comparatively simple equipments. Once after the water flows past the UV water sterilizer, it can be used directly. The maintenance of UV water sterilizer is also very simple. The only thing we need to do is clean it periodically. For the reasons mentioned above, we can see that UV water sterilizer is the most advanced, effective and economical method for water sterilizing. No wonder why it is widely applied in so many countries.
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