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Ion Exchanger
  The "ion exchange method" for preparing pure water is widely used in China. The principle is that the cation (metal ions such as calcium, magnesium, copper and sodium) and anion (non-metallic ions such as carbonate, nitrate and sulfate) generated by the ionization of various inorganic salts in raw water pass through the cation and anion resin layers (ion exchange agent in the ion exchange column), and are adsorbed by the resin through displacement reaction with hydrogen ions and hydroxide ions on the resin. The hydrogen ions replaced from the resin and hydroxyl ions combine to form water molecules (H2O), so as to achieve the effect of removing inorganic salts in the water and achieve the purpose of preparing desalted pure water. With the operation of the ion exchange column, the replaceable hydrogen ions and hydroxyl ions on the resin in the column become less and less, and the displacement capacity becomes weaker and weaker. When the displacement capacity is weak to a certain extent, we call the resin "invalid", and then the resin needs to be regenerated. Regeneration is to let strong acid (commonly used HCL solution) and strong alkali (commonly used NaOH solution) ionize to generate hydrogen ions and hydroxide ions. When passing through the cation and anion resin layers, the inorganic salt ions adsorbed on the resin are replaced, and flow out of the ion exchange column with the acid or alkali solution, so that the resin in the ion exchange column recovers its original displacement capacity.
Working Principle:
  The desalted water is also prepared by ion exchange treatment. Most organic impurities and more than 5 μ After the particles above m, the water enters the cation ion exchanger, anion ion exchanger and mixed ion exchanger to remove various metal and nonmetal cation anion inorganic salts in the water, then the qualified pure water enters the pure water tank, and then is pumped to the production water point of the workshop through the pure water supply pump.
Characteristic:
  The production process of "countercurrent regeneration fixed bed" is adopted, which has the characteristics of simple structure, easy operation, low requirements for inlet water, low consumption of regenerant, stable outlet water quality, safe system, reliable and stable operation, etc.
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