Pure water, referred to as purified water or pure water for short, is a pure, clean, water that does not contain impurities or bacteria. It is water that meets the hygiene standards of drinking water and is made up of electrodialyzer method, ion exchanger method, and reverse osmosis method. , Distillation and other appropriate processing methods are made, sealed in the container, and without any additives, colorless and transparent, can be directly consumed. The space water sold on the market, distilled water is pure water. The water quality requirements for water purifiers of water purifiers shall comply with the requirements set out in the “Regulations on the Evaluation of Hygiene Safety and Functionality of Reverse Osmosis Drinking Water Treatment Plants†promulgated by the Ministry of Health of the People's Republic of China in 1998.
At present, in the bottled drinking water market in China, there are mainly pure water, mineral water, spring water and natural water, mineral water, etc. Since mineral water, spring water, etc. are subject to resource constraints, pure water is using tap water after a certain production process For production, the people who drink the most in the market are pure water. The quality of purified water is closely related to the lives of ordinary people. To this end, the National Bureau of Quality and Technical Supervision issued in April 1998 GB173223-1998 "bottled drinking purified water" and GB17324-1998 "bottled drinking purified water hygiene standards." Among these two criteria, there are 4 sensory indicators, 4 physical and chemical indicators, and 11 hygiene indicators.
The therapeutic value of pure water
1. People's various physiological activities require water, such as water can dissolve various nutrients, fat and protein, etc. to be absorbed in the colloidal state suspended in water; water flows between blood vessels and cells, and oxygen and nutrients are kept flowing. Transport to the tissue cells, and then excreted metabolic waste, in short, a variety of human metabolism and physiological activities are inseparable from water.
2. Water plays a role in regulating body temperature. When people breathe and sweat, they will emit some water. For example, during the hot season, the ambient temperature is often higher than the body temperature, and people rely on sweating to evaporate some of the calories to reduce body temperature and protect people from heat stroke. In the cold weather, the human body does not cause significant fluctuations in body temperature due to the low temperature due to the great potential for water reserves.
3. Water is a lubricant in the body. It moisturizes the skin. If the skin is dry, it will become dry and lose its elasticity. It looks old. Some of the joint cyst fluid and serosal fluid in the body can prevent friction between organs and be flexible. Tears and saliva are also the lubricants of the corresponding organs.
4. Water is the most inexpensive and curative power in the world. The health and disease prevention effects of mineral water and electrolyte water are well known. It is mainly because water contains ingredients that are beneficial to the human body. When you catch a cold or have a fever, drinking plenty of water can help sweat, fever, and dilute the toxins produced by the bacteria in your blood. At the same time, more urine can help speed up the discharge of toxins.
5. Large area burns, severe vomiting and diarrhea, etc. When the body is losing a lot of water, it is necessary to add fluids in time to prevent severe dehydration and aggravate the condition.
The harm of pure water
In 2000, a water lawsuit caused a sensation in Shanghai. The story goes like this: In 1997, a pair of highly-educated couples gave birth to a baby boy. In order to create a healthy environment for their children, they bought the barrels of pure water from the day they gave birth to their sons. Cooking, drinking. Three years later, their son got rickets, and his IQ was not developed. At the age of three, he wouldn’t call his father or mother anymore. This pair of well-educated couple met the professor of water physiology of the Chinese Academy of Sciences, Professor Jin Tian, ​​and solved the mystery for them: everything is pure water. Professor Jin Dayuan points out two fatal flaws of pure water:
First, pure water is also called “poor water,†because pure water not only does not contain any trace elements, but it also removes all living ions that nourish the human body. This kind of water, the more acidic it is, the more fluid it takes to drink. The pH of healthy people's body fluids is between 7.35 and 7.45. When a person's PH value drops below 7.3, it is a typical sub-health (checks no disease, but the body is uncomfortable in many places); if the PH value drops to neutral 7.0 , is already a major disease patient, down to 6.8-6.9 became a vegetative state, down to 6.8 or less, life can not exist. Therefore, the more fluid you drink, the more acidic your body fluid becomes. The more acidic the body fluid is, the poorer the self-repair and gene replication, the slower the self-repair, and the drastic decline in the immune system.
Second, because water carries all sorts of information and generates energy, all of the water is removed, but the water's memory is not completely wiped out, so water comes into the body and it finds all the trace elements that are deprived in your body. Everywhere there is water, so the water will remove a large amount of various trace elements, such as calcium, zinc, magnesium, etc., from the human body, so that the human body not only does not supplement the required minerals and trace elements, but pure water also puts in vivo Some beneficial minerals and trace elements are brought outside the body. Since then, the Shanghai municipal government has emphasized that all elementary and middle school students are prohibited from drinking purified water. As a matter of fact, most of the developed countries used the law as early as many years ago, and pure water cannot enter drinking water.