The water purification technology on the market is varied, and we often hear the terms such as activated carbon, ultrafiltration and RO reverse osmosis. Vendors often claim that their filters use some advanced technology. However, in the mainstream filter media, activated carbon is recognized as the most natural and efficient, and the arsenic exceeded the standard water purification equipment in the previous period. In fact, the post-activated activated carbon is the root of the arsenic exceeding the standard of the water purifier; the activated carbon is black powder or granular amorphous. Carbon has the characteristics of large specific surface area and electrostatic adsorption. The use of activated carbon as a filter element in the water purifier can filter harmful substances in the water, and is particularly effective for filtering out residual chlorine and organic pollutants harmful to the human body. For consumers, the premise of purchasing water purifiers is safe and healthy, and the most concerned about “what is the cause of water purifier pollutionâ€, Shiwo water purifier experts also talked about their own views: One unqualified item, the first arsenic exceeded the standard, the main reason for arsenic exceeding the standard is that it is still on the problem of activated carbon, because activated carbon is fired from plants and wood, and some plants may absorb arsenic in the soil. Carbonization, activation, and fuel use also have arsenic, which enters activated carbon. In addition, chemical reagents are added during activation, and arsenic is contained, causing arsenic to exceed the standard." In addition, as the total number of colonies is unqualified, it is because the manufacturing and assembly process of raw materials and filter elements may cause bacterial contamination. If the workshop is not strictly disinfected, bacteria may enter the water purifier and may run into the water, resulting in a total number of colonies. qualified. The main cause of unqualified organic matter is activated carbon, and the amount of activated carbon may be relatively small. Among various activated carbons, granular and powdery activated carbons are the most common, and they are capable of adsorbing impurities in water, and are inexpensive and widely used. However, the structure of the granules and the powdered activated carbon is not tight enough, and the adsorption is not complete, and it is likely that some unfiltered water will flow out from the gap of the filter material. With the advancement of innovation and technology, activated carbon rods have emerged. The high-performance activated carbon rod is fine and compact, and the efficiency is high. The sewage enters from the outer wall of the activated carbon rod. After the layer is filtered, the purified water flows out from the hollow part of the activated carbon rod, and 100% complete filtration can be achieved. High-quality water purifiers using activated carbon rods as filter elements are now available on the market. In addition, the combination of activated carbon and other technologies is more powerful. For example, adding some food-grade polymer materials to the activated carbon rod can achieve the effects of filtering heavy metals such as lead in water, scale inhibition, etc. In the higher-end water purifier products, the filter element is combined with a high-strength filter membrane of medical grade, which greatly enhances the filter element. Filter performance. The importance of activated carbon is also reflected in the fact that almost all household water purifiers, regardless of the high physical filtration accuracy, need to use activated carbon to make the final check. The facts show that water purifiers that do not use activated carbon tend to have poor taste. The filter element is the guardian of the water purifier, the filter element is a regular consumable, and regular replacement is very important. Many of the so-called household water purifiers on the market claim that the filter element does not need to be replaced for 3-5 years, and it is often exaggerated. Water Purifier Filter Replacement Guide: At present, the water purifier generally has 3-6 filter elements, and the more the number of filter elements, the more advanced the product. At present, there are many kinds of filter elements, including rear activated carbon filter, PP cotton filter, ultrafiltration filter, reverse osmosis filter, softening filter, etc. For the time to replace the filter element, the filter of the Shiwo water purifier is of good quality and needs to be replaced once every two years. Other brands of promoters filter replacement time is very long, the Gengyuan promoters said that the Gengyuan water purifier filter for two years; the United States said that generally speaking, 8 months to one year, and Angel's factory promoters said There are 6 SA-UF100 water purifier filters, and the core changing time ranges from 6 months, 8 months, and 1 year to 3 years. The water purifier is different from the general electrical appliance. It cannot be used once and for all. The key to the selection of the water purifier is to look at the filter element. The filter element is less than three months, and more than half a year. This is because no matter what kind of filter material is used, a large amount of organic matter is adsorbed on the filter material, which is easy to become a breeding ground for bacteria, which leads to poor purifying effect of the water purifier. According to a study in Japan, the water purifier using activated carbon can detect microorganisms on the second day of operation. When it runs to the 28th day, the number of bacteria per ml of water reaches 120,000, far exceeding the drinking water. Safe range. Bacteria can cause nitrification and denitrification in the water purifier. If the water purifier is not cleaned and replaced in time, the nitrite content in the water purifier can be more than 7 times higher than that of tap water, and nitrite is a carcinogenic killer. . As the use time increases, the ability of the water purifier to absorb harmful substances is also reduced. When the water output exceeds the rated water content of the water purifier, these substances in the water will not be adsorbed but will also be released from the filter element. In the water. In this regard, the person in charge of the Shiwo water purifier, one of the top ten brands of household water purifiers, said that the water purifier does not indicate the service life of the filter. “This is because the life of the household water purifier is related to the water quality and the frequency of consumers. We have been asking the frontline interpreters to tell the truthfulness to the customers. It seems that the frontline interpreters have some problems communicating with consumers. We will emphasize this in the later meetings." Garden Deer Lights,Garden Flamingo Lights,Garden Crane Lights,Garden Giraffe Lights Sichuan Kangruntengpu Photoelectric Technology Co., Ltd. , https://www.krtoplighting.com