Sludge dewatering machine: common sense of sewage treatment

      1.High-quality water: on the basis of municipal water supply (or standard water), processes such as coarse filtration, fine filtration, and sterilization are used. Excellent drinking water obtained by deep processing.

2.Mineral water: The precious water resources in nature, after simple sterilization and filtration, are supplied to consumers as commercial drinking water.

3. Purified water: clean water with almost no impurities obtained by using water treatment equipment with high desalination rate. The conductivity is generally 1.0 ~ 0.1uS/cm.

4. The molecular formula of water is H2O, and its relative molecular weight is 18.015. Among water molecules, hydrogen accounts for 11.19% and oxygen accounts for 88.81%.

5. The salt content of water: also the degree of mineralization, which means the amount of salt in the water, or the combination of various anions and cations in the water.

6. Hardness: The total concentration of metal ions after cations and anions combine to form scale in water.

7. Conductivity and resistance: the purer the water, the less salt content, the greater the resistivity, and the smaller the conductivity. Ultra-pure water hardly conducts electricity. The magnitude of the conductance is equal to the reciprocal of the resistance value.

8. PH value and pH, the PH value of water is the negative logarithm of the hydrogen ion concentration in the water, also known as the hydrogen ion index. It can be known that the aqueous solution is alkaline, neutral, and acidic.

Pure water: refers to the water in which the strong and weak electrolytes (such as SiO2, CO, etc.) in the water have been removed or reduced to a certain extent. The electrical conductivity is generally 1.0～0.1uS/cm, the resistivity is 1.0～10.0*106.cm, and the salt content is 　<　1mg/L.

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