Water purification information

What is the difference between softened water and other water

Views : 111869
Update time : 2021-09-24 15:03:21
In daily life, we often see scale formation on the inner wall of the kettle after being used for a long time. What is the reason? It turns out that the water we take contains many inorganic salts, such as calcium and magnesium salts. These salts are invisible to the naked eye in water at room temperature. Once they are heated and boiled, a lot of calcium and magnesium salts will precipitate out as carbonates, and they will form scale when they cling to the kettle wall.

We usually use the index of "hardness" to express the content of calcium and magnesium ions in water. A hardness of 1 degree is equivalent to 10 mg of calcium oxide per liter of water. The water below 8 degrees is called soft water, the water above 17 degrees is called hard water, and the water between 8 to 17 degrees is called moderately hard water. Rain, snow, rivers, rivers, and lakes are all soft water, spring water, deep well water, and sea water are all hard water
Raw water refers to untreated water. In a broad sense, the water before entering the water treatment process is also called the raw water of the water treatment. For example, the water sent from the water source to the clarification tank is called raw water.
  
Softened water refers to water whose hardness (mainly refers to calcium and magnesium ions in water) has been removed or reduced to a certain extent. In the process of water softening, only the hardness decreases, while the total salt content does not change.

Desalting water refers to water that has been removed or reduced to a certain extent by salts (mainly strong electrolytes dissolved in water). The electrical conductivity is generally 1.0~10.0μS/cm, the resistivity (25℃)(0.1~1.0)×106Ω˙cm, and the salt content is 1~5mg/L.

Pure water refers to the water that has been removed or reduced to a certain extent by the strong and weak electrolytes (such as SiO2, CO2, etc.) in the water. The electrical conductivity is generally 1.0~0.1μS/cm, and the electrical conductivity (1.01.0~10.0)×106Ω˙cm. The salt content is <1mg/L.

Ultrapure water refers to the water in which the conductive medium in the water is almost completely removed, and the non-dissociated gases, colloids, and organic substances (including bacteria, etc.) are also removed to a very low level. Its electrical conductivity is generally 0.1~0.055μS/cm, resistivity (25℃) ﹥10×106Ω˙cm, salt content ﹤0.1mg/L. Ideal pure water (theoretically) has a conductivity of 0.05μS/cm and a resistivity (25°C) of 18.3×106Ω˙cm.
Related News
Read More >>
Why are you being advised to install a water purifier? Why are you being advised to install a water purifier?
Apr .03.2025
Every day we drink water but ignore the disease enters from the mouth. In recent years, along with the rapid development of the city, industrial pollution, agricultural pollution to the living water has brought great threat. Experts say that it is impossible to deal with water pollution in a short period of time, the installation of water purifiers is currently the safest solution for drinking water.
Still confused about whether to buy a water purifier or not? You'll know after reading this article! Still confused about whether to buy a water purifier or not? You'll know after reading this article!
Apr .03.2025
Still confused about whether to buy a water purifier or not? You'll know after reading this article!
On the Internet, there are many people spouting water purifier is IQ tax? Some voices have caused many friends to have questions and concerns, then today to answer together~
New house decoration to avoid the pit, whole house water purification program a full understanding New house decoration to avoid the pit, whole house water purification program a full understanding
Apr .03.2025
In the decoration, people tend to pay more attention to the visible space design but easy to ignore the air, water, these invisible factors whole-house water purification to improve the quality of life, simply too important After all, cooking and drinking water, washing and showering, we are in contact with water every day too often.
Refuse “disease enters by the mouth”, choose the right water purifier, drink water more peace of mind! Refuse “disease enters by the mouth”, choose the right water purifier, drink water more peace of mind!
Apr .02.2025
Have you ever thought of drinking a glass of water every day, may not be as you think so “pure”? Look at the transparent water flow, in fact, hides a lot of invisible “little secret”: residual chlorine, heavy metals, bacteria ...... these things, if long time to be absorbed by the body, will bring what kind of consequences? Just think about it, let a person a little back cold. Today we talk about a super important but often overlooked topic - how to choose a reliable water purifier at home?