Advantages of deep UV LED in water sterilization treatment
发布时间：2022-01-19 09:10
来源：萤光创新
With the increasing improvement of people's living standards, the awareness of healthy water is also increasing. Since water is an indispensable resource for life, it is necessary to have good sterilization and purification methods to ensure drinking healthy drinking water. From the past to the present, people have also used many methods, mainly divided into physical methods and chemical methods. For example, physical methods include high-temperature boiling, burning, high-pressure steam and other methods, and chemical methods include chlorine, ozone and other methods.
Chlorine disinfection will form a chlorine compound in the water, which is a carcinogen, and there will be a smell when the chlorine concentration is high. If you drink raw water, you will obviously smell this strange smell.
Ozone is another common water sterilization and disinfection method, which also has strong sterilization effect. However, if its concentration is too high, the decomposition time of ozone will be prolonged. The unfinished ozone not only smells bad, but also is an invisible killer, which is very harmful to people's respiratory tract, nervous system and immune system.
Although there are many methods of sterilization and disinfection, some methods are gradually stopped because there are many uncertain factors in the efficiency of sterilization and disinfection, secondary pollution and safety problems.
The deep ultraviolet LED sterilization technology is an ideal sterilization and disinfection method at present. It uses the strong sterilization function of ultraviolet, which has fast sterilization and high efficiency. The sterilization and disinfection process will not produce secondary pollution, and there is no potential safety hazard.
At present, water purification devices in the market generally only have traditional mechanical filters, while a typical complete filtration device should have a multi-layer structure, including a UV sterilization light source and a traditional mechanical filter. The traditional mechanical filter layer and activated carbon layer are mainly used to remove solid impurities and other impurities with bad odor. The UVC sterilization light source only needs to be integrated into the traditional filtering device to realize the efficacy of sterilization and disinfection.
The deep ultraviolet LED water sterilization module solves the worldwide problem of healthy water. Here are several applications of deep ultraviolet LED water sterilization and disinfection: water sterilization and disinfection are divided into disinfection, sterilization, photodegradation and other photochemical reactions in principle; Water sterilization can be divided into static water sterilization and flowing water sterilization.
1. Static water sterilization
Static water sterilization refers to the sterilization and bacteriostasis of the water in the water storage space (container). Because the water storage container is usually static for a long time, it will be easy for bacteria to breed and cause excessive bacteria under the condition of appropriate temperature. In view of this situation, the static water sterilization module enables it to reach and maintain a low bacterial level by regularly opening sterilization. According to the sterilization orientation of the product, it is divided into bacteriostasis and sterilization. There is no essential difference between sterilization and bacteriostasis. Its fundamental purpose is to keep the affected water sterile or low bacterial level for a long time. It is characterized by:
Advantages: the sterilization module can continuously act on a relatively fixed volume of water, and can achieve the purpose of sterilization at a low cost. Low cost and high sterilization rate.
Disadvantages: due to the low sterilization power, when new water enters and the new water contains high bacteria, it cannot be killed in time. It will take some time to sterilize completely.
Therefore, static water sterilization is more suitable for water storage in water tank, and the supplementary water source is sterile water appliances for bacteriostasis, or for long-term bacteriostasis after sterilization of water tank water.
2. Flowing water sterilization
Flowing water sterilization is different from static water sterilization. Through the high-power ultraviolet radiation unit, the water flowing through the sterilization module can be sterilized efficiently and instantaneously, so that the water flowing through the sterilization module can reach a level of sterility or extremely low bacterial content. It is characterized by:
Advantages: instant sterilization, fast sterilization speed, can continuously and stably output the sterilized water body, and solves the problem of slow sterilization of static water.
Disadvantages: the structure is relatively complex and the UV radiation power is high, resulting in high cost.
Therefore, it is more suitable for flowing water sterilization to sterilize the final drinking water at the end of the water purifier, so as to achieve the purpose of direct drinking. At present, the over-current sterilization module is applied in high-end household water purifiers and commercial water purifiers. With the gradual reduction of production cost, the application scope is expected to be further expanded and become the final form of drinking water sterilization.
UVC ultraviolet sterilization technology not only plays a role in sterilization, but also an efficient sterilization method. It is the most efficient and energy-saving water sterilization technology at present. It will be recognized by more people and used more widely in the future.
Qingdao fluorescent Innovation Technology Co., Ltd. has a professional postdoctoral team, focusing on the research of ultraviolet sterilization application. After years of deep cultivation in the ultraviolet industry, the company has obtained a number of national invention and utility model patents. At present, a number of sterilization module products have been put into the market. For more details, please visit the company's website at www.qdyingguang.com Com contact the company for the official account of WeChat.
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