The difference between softened water and other types of water-Yuanlai Water Treatment

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The difference between softened water and other types of water

Released Date: Apr 13,2016 Article Source: Yuanlai Water Treatment

In daily life, we often see that scale forms on the inner walls of kettles after long-term use. What's the reason for this? It turns out that the water we took contains a considerable amount of inorganic salt substances, such as calcium and magnesium salts. These salts cannot be detected by the naked eye in water at normal temperature. Once they are heated and boiled, a considerable amount of calcium and magnesium salts will precipitate in the form of carbonates. When they adhere to the inner walls of the kettle, they form scale. We usually refer to the content of calcium and magnesium ions in water as "". "Hardness" This indicator is used to represent it. A hardness of 1 degree is equivalent to 10 milligrams of calcium oxide per liter of water. Water with a temperature below 8 degrees is called soft water, water with a temperature above 17 degrees is called hard water, and water with a temperature between 8 and 17 degrees is called moderately hard water. Rain, snow water, river water, lake water are all soft water, while spring water, deep well water and sea water are all hard water. Let's take a look at the soft part again

　　In daily life, we often see that scale forms on the inner walls of kettles after long-term use. What's the reason for this?It turns out that the water we took contains a considerable amount of inorganic salt substances, such as calcium and magnesium salts. These salts cannot be detected by the naked eye in water at normal temperature. Once they are heated and boiled, a considerable amount of calcium and magnesium salts will precipitate in the form of carbonates. When they adhere to the inner walls of the kettle, they form scale. We usually express the content of calcium and magnesium ions in water by the indicator of "hardness". Hardness1Degree is equivalent to the amount contained in each liter of water10Milligram calcium oxide. Lower than8Water at a certain degree is called soft water, which is higher than17Water of a certain degree is called hard water, which is between8～17Water of varying degrees is called moderately hard water. Rain, snow water, river water, lake water are all soft water, while spring water, deep well water and sea water are all hard water.

　　Let's take a look at the differences between softened water and other types of water

　　Raw waterIt refers to untreated water. In a broad sense, the water that enters the water treatment process before it is also called the raw water for that water treatment. For example, water sent from a water source to a clarifier for treatment is called raw water.

　　Softened waterIt refers to the hardness in water(It mainly refers to calcium and magnesium ions in water)Remove or reduce a certain degree of water. During the process of water softening, only its hardness decreases, while the total salt content remains unchanged.

　　Demineralized waterIt refers to salts in water(It is mainly a strong electrolyte dissolved in water)Water removed or reduced to a certain extent. Its electrical conductivity is generally1.0～10.0µS/cmResistivity(25℃)(0.1～1.0)×106Ω˙cm The salt content is1～5mg/L.

　　Pure waterIt refers to the strong and weak electrolytes in water(Such asSiO2,CO2Such as)Remove or reduce water to a certain extent. Its electrical conductivity is generally:1.0～0.1µS/cmElectrical conductivity(1.01.0～10.0)×106Ω˙cm . The salt content is<1mg/L.

　　Ultra-pure waterIt refers to gases, colloids and organic substances in water that almost remove conductive media while not dissociating(Including, etc)It also removes a very low level of water. Its electrical conductivity is generally0.1～0.055µS/cmResistivity(25℃)﹥10×106Ω˙cm Salt content﹤0.1 mg/L. Ideal pure water(Theoretically)The electrical conductivity is0.05µS/cmResistivity(25℃)for18.3×106Ω˙cm.

　　What is softened water treatment?

　　The calcium and magnesium ions in the raw water are replaced by strong acidic cation resin, and then the boiler feed water filtered out by this water softening equipment becomes boiler softened water with extremely low hardness.

Keywords: Water Softening Equipment Automatic Water Softener Reverse Osmosis Equipment Manufacturer of Water Treatment Equipment

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