Tap water charging software What's the difference between sharing tap water, mineral water and purified water
We often drink tap water, pure water and mineral water. What's the difference between these three kinds of water? What kind of water is good to drink? Today's tap water charging software is used to popularize science. What's the difference between these three kinds of water? Which kind of water is better to drink?
tap water
Tap water mainly comes from rivers and lakes, or groundwater and surface water. It is purified and disinfected by the waterworks for human use. Tap water also contains trace minerals, such as calcium, magnesium, iron, selenium, mercury, etc. The water quality in the north is hard, and there are many scales when boiling, mainly because of the high content of calcium ions. With the development of industry, some people worry that many rivers and lakes have been polluted, and that harmful substances in tap water, such as lead, mercury and other heavy metals, exceed the standard. In fact, we need not worry too much. The water source selected by the waterworks will be guaranteed. Moreover, our country has the Sanitary Standard for Drinking Water, and all tap water must meet this standard, and all harmful substances will be controlled within a reasonable range. Therefore, as long as it is up to standard tap water, there is no harm in boiling it, and it can be drunk for a long time.
purified water
Compared with tap water, pure water only contains water, without impurities. Through certain methods, Extract all minerals in water, such as calcium, magnesium, lead, mercury, etc. In principle, pure water is safer than tap water, because pure water can remove harmful minerals, such as lead, mercury and arsenic. This is also the selling point of many pure water manufacturers. Our water is free of any heavy metals, and there is no pollution. It is very healthy for human beings. In fact, as we have said, as long as the quality of tap water meets the Sanitary Standards for Drinking Water, long-term drinking will not cause obvious damage to the body. One of the disadvantages of drinking purified water for a long time is that mineral deficiency may occur, such as calcium, magnesium, iron, zinc, etc. These trace elements are very important for human beings. Minerals cannot be synthesized by themselves and need to be supplemented from food or water. The minerals in food mainly come from meat and cereals. If you are a picky eater or a person with poor gastrointestinal absorption function, drinking purified water for a long time may lead to mineral deficiency and malnutrition.
mineral water
The natural mineral water is the unpolluted underground mineral water that naturally gushes from the deep underground or is exposed manually. The nine boundary indicators specified in the national standard include lithium, strontium, zinc, selenium, bromide, iodide, metasilicic acid, free carbon dioxide and total dissolved solids. Mineral water must have one or more indicators that meet the requirements of the boundary indicators. The advantage of mineral water is that it contains essential trace elements for human beings. Moreover, trace elements in water exist in the form of ions and are easy to absorb. The absorption rate of trace elements dissolved in water is up to 90%. However, mineral water should not be boiled. After boiling, calcium ions and magnesium ions form calcium carbonate and precipitate from the water.
