As the saying goes, "There is a foot in the water." It means that there will be sediment in the water after it has been boiled for a long time.
But how did these sediments come from? Drinking more of this water will result in kidney stones? With questions, let's find out!
About scale
1. Type of water
Water has the distinction of "hard water" and "soft water". Hard water contains more soluble calcium and magnesium compounds. The total concentration of calcium and magnesium ions contained in water is measured by the "hardness" index. The hardness is in ppm and 1 ppm represents 1 mg/L of calcium carbonate in water. In the usual sense, when the content of calcium carbonate in water is less than 150 mg / liter, it is called soft water, and above this index is hard water. It is worth noting that the tap water that is most exposed to our lives is mostly treated to achieve hard water for human consumption.
2. Scale formation
The white suspension in water is commonly known as “scaleâ€. The main components are carbonates (such as magnesium carbonate and calcium carbonate). Calcium and magnesium ions dissolved in water react with other substances when the state of water changes. The poorly water-soluble compound or mixture is initially present in the form of a floating material on the surface of the water, and then precipitated on the bottom of the water or attached to the inner wall of the container.
3. Drinking more water will get kidney stones?
The net upload said that there are a lot of magnesium carbonate and calcium carbonate in the scale. It is easy to cause stomach stones and kidney stones after drinking for a long time. Is it true or false? From the CCTV Financial Channel [is it true?] The truth report of the program:
The main component of scale is indeed magnesium carbonate and calcium carbonate, but after the water is absorbed by the body, the stomach acid can dissolve the magnesium carbonate and calcium carbonate in the scale, and the non-decomposable part will also be excreted with the feces, and will not be on the body. Has a special impact.
For the netizen, "Drinking large scale water will also cause kidney stones", the expert explained:
Kidney stones are small crystals of calcium and magnesium ions in the body that are precipitated in the urine. The water we drink, especially in the range of qualified tap water allowed by the state, its ion concentration will not increase the burden on the human kidney, and the concentration of ions discharged will not reach the concentration of precipitated ions to form stones. You don't have to worry about causing stones.
Everyone knows what kind of sediment is in the water, but there are friends who have asked:
Although scale does not have much impact on our body, but they still feel uncomfortable to see them. Why can't they be installed in the home with ultrafiltration machines? How to choose straight drinking water? Don't worry, follow the example of Shiyang Electromechanical Let's continue to explore~
About drinking water
Household water purifier products are mainly divided into two core types: RO reverse osmosis type pure water machine and ultrafiltration type water purifier. The water purified by these two machines is called "RO water" and "ultrafiltration water". .
1. "RO water" concept
RO water is the water filtered through the RO reverse osmosis membrane, which is a kind of pure water without various ions and impurities. Compared with other filtration devices, RO reverse osmosis membranes have the highest filtration accuracy during water purification.
2. RO water characteristics
Reverse osmosis technology can effectively remove heavy metals such as lead and arsenic in water, volatile organic compounds and other harmful substances, clean and hygienic, good taste, can be directly consumed, and the use of RO water in cooking and soup can make nutrients in food more easily absorbed. And can retain the original taste of the food, healthy and delicious and nutritious; RO water can promote the extraction of flavor factors in the coffee, and the release of tea polyphenols in the tea, so that the drink is more mouthfeel. The water hardness after filtration through the RO membrane is low, and it is a good choice to use the RO pure water machine in areas where the tap water hardness is high.
Ultrafiltration water
1. "Ultrafiltration water" concept
We will remove harmful substances, but water that retains calcium and magnesium ions and trace elements beneficial to the human body is called ultrafiltration water.
2. Characteristics of ultrafiltration water
Ultrafiltration water retains the mineral ions and trace elements beneficial to the human body in the water, making the water more permeable and oxidizing, close to uncontaminated mountain spring water. Relatively speaking, it is more suitable for consumers in areas with low water hardness, children, pregnant women, the elderly and sports and fitness people.
Why does the water filtered by the ultrafiltration machine still have white suspended solids?
The ultrafiltration machine mainly purifies the water by pure physical filtration of membrane filtration and activated carbon adsorption, and removes harmful substances in the water while retaining calcium and magnesium ions dissolved in water. In fact, in addition to mineral ions, tap water also has viscous substances such as colloids, bacteria, and organic substances that can bond carbonates to each other and can be tightly bonded to the container. They are like "condensation nodules", which will continue to enlarge the surface area as the water temperature rises due to the expansion and contraction, and then adsorb more minerals and eventually form "scale". When the ultrafiltration machine effectively removes bacteria, colloids and agglomerates and a part of organic matter, the calcium and magnesium ions can not be fully adsorbed by the "condensation tuberculosis", and will be suspended in the water in the form of "scale", which is what we see. White suspension. Therefore, when the content of mineral ions such as calcium and magnesium in water is too high, it is normal to see white suspended matter even at normal temperature.
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