With the continuous improvement of living standards, people pay more and more attention to healthy drinking water, but there are still many doubts about how to obtain healthy drinking water. In the near future, kaineng environmental protection (Stock Code: 300272) will publicize and popularize relevant issues in the name of "Dr. water". Today, the first discussion is the characteristics of KDF copper zinc alloy filter material and its role in water treatment.
High zinc content in purified water means that more harmful substances are replaced
Most water purifiers of kaineng environmental protection are equipped with KDF copper zinc alloy filter material imported from the United States and high-quality coconut shell activated carbon. As a safe and effective water purification filter material, KDF has been widely recognized all over the world. It has passed the certification of the National Health Foundation (NSF) and is defined as "microbial inhibition device" by the U.S. Environmental Protection Agency. In China, KDF has also obtained the health safety inspection qualification report from the national health department.
KDF can exchange electrons with residual chlorine and heavy metals in water. If such substances in water are high, more zinc ions will be exchanged. These principles can be seen by searching "KDF" in Baidu Library, such as "zinc released from KDF treatment medium has an obvious control effect on microorganisms, and zinc can prevent enzyme synthesis, so as to affect the normal growth of organisms and inhibit microbial reproduction".
Why does zinc exceed the standard in purified water? There are many reasons for this phenomenon. For example, in some areas of Shanghai, due to the special situation of the water quality of the Huangpu River in the previous period, the water plant increased the dosage of chlorine in the water to ensure complete disinfection and sterilization. In addition, due to the old regional water transmission pipelines, the residues of chlorine and heavy metals in the water increased. In this regard, kaineng sales service personnel will specifically recommend water purifiers equipped with KDF filter media, but KDF has increased the zinc content of effluent to deal with these harmful substances. This is a normal phenomenon that is easy to occur in the period of poor tap water quality. The increase of zinc content in water, in turn, also shows that it eliminates more substances harmful to health, indicating the excellent performance of water purifier.
Zinc content in drinking water is an index of sensory properties, and zinc is beneficial to human body
What does excessive zinc mean? China's hygienic standard for drinking water stipulates that the content of zinc in drinking water should not be greater than 1mg / L, but this index is "sensory properties and general chemical indexes". If the zinc content is high, the water is easy to produce milky white, which is difficult for some residents to accept. However, zinc content is not a toxicological index. Horizontally, there is no zinc content index in the WHO drinking water standard. The American drinking water quality standard stipulates that the content limit of zinc is no more than 5mg / L, and it is clear that this index is a recommended sensory index. Many health products and nutritional products can also show that zinc is beneficial to the human body. For example, the manual of "Sanjing brand zinc gluconate oral liquid" indicates that every 100ml of oral liquid contains 35.3mg zinc. The content of zinc in children's formula milk powder and zinc added milk is much higher than 1mg / L.
Copper zinc alloy was first developed and utilized by the United States as an effective water treatment material. In fact, it has a long history of use in China. Brass is the alloy material of copper and zinc. In ancient China, brass was used as a utensil to hold water and food. Most faucets in modern life are brass products. In case of heavy metal pollution, zinc will overflow into water and food, but it is beneficial and harmless to human body.
Kaineng environmental protection has made and will continue to make a responsible commitment: our water purifier is connected to normal tap water. We will be fully responsible for any direct health damage caused by the increase of zinc content in the effluent.
Scientific and rational view of relevant standards of safety and health
At present, people pay more and more attention to water and food safety, but many people do not know that there are "health" requirements in addition to "safety". Generally speaking, the government manages safety and pays attention to health. But health and safety are different, sometimes even contradictory. For example, the water plant will add chlorine to the water to avoid the breeding of bacteria and viruses during water transportation, which is for safety reasons; However, from the perspective of health, it is better to remove the residual chlorine before residents use tap water, because chlorine is harmful to human body. The book safe drinking water and scientific drinking water, written by Fu Jiamo, academician of the Chinese Academy of Sciences and Professor Cai Zugen, states that "at present, chlorine containing disinfectants are the mainstream disinfection methods in domestic water disinfection", "Its disadvantage is that while removing bacteria, it also generates some disinfection by-products, including trihalomethane and haloacetic acid... Haloacetic acid and trihalomethane are 'three pathogenic' substances (carcinogenic, teratogenic and mutagenic), which pose a potential threat to human health."
The chlorine in the water purified by the water purifier is removed. Of course, such water is healthy and good for drinking. However, according to the hygienic standard for drinking water, the chlorine content of tap water in residents' homes shall not be less than 0.05mg/l, and the water without chlorine does not meet the standard. But for users, this is healthy drinking water.
Kaineng environmental protection products advocate natural methods to remove harmful substances from water and retain beneficial substances, so as to obtain healthy drinking water. The treatment object of kaineng household water purifier is municipal tap water. Kaineng products will further improve the quality of drinking water. According to the product design, When the tap water is basically normal (the content of residual chlorine and heavy metals in the water is normal), this water purifier can effectively remove heavy metals and residual chlorine, and the zinc content in the water will be within the standard. However, when the tap water quality fluctuates, especially when the residual chlorine and heavy metals seriously exceed the standard, it is easy to have a high zinc content, which is a harmless and healthy phenomenon.
In conclusion, the copper zinc alloy filter material represented by KDF is a unique filter material that can not only eliminate residual chlorine and heavy metals in water, but also retain beneficial substances in today's water treatment industry. Of course, any kind of water treatment process is not perfect, but it can be improved by energy engineers through technical means.
As an industrial tourist attraction, kaineng environmental protection welcomes all circles to visit and experience
As a listed company in the domestic residential water treatment equipment industry, kaineng environmental protection has long been committed to developing and manufacturing whole house water purifiers / softeners, terminal water purifiers and commercial purified drinking fountains that adopt different technical solutions and meet customers' different water quality requirements according to China's water quality characteristics. We are pleased to see that tens of thousands of users in Shanghai alone are satisfied with the high-quality water purifiers
Kaineng products have been adopted by major projects such as the Olympic Games, the World Expo and the world swimming championships, and nearly 50% of the products are exported to Europe and the United States. As for the water purifier, kaineng environmental protection water purifier equipped with KDF filter material is an excellent product that can obtain healthy drinking water.
While our products are becoming more and more perfect, we attach great importance to customer relations. The health and satisfaction of customers is the goal we have been pursuing. We know that there are areas that need to be continuously improved and improved in the service process. We have the responsibility to eliminate the misunderstanding of users, improve communication with users, and enable more people to form a scientific and rational understanding of drinking water safety and health.