Most of the water we come into contact with in our daily lives is tap water, as well as bottled purified water and bottled mineral water sold in supermarkets, which can be used for washing and drinking after treatment. In addition to the main component water molecules, these waters also contain some metal ions, minerals and trace elements. The water produced by EDI ultrapure water equipment is generally called "ultrapure water", which is mainly used in industrial production and cannot be used as drinking water.
This is because the purity of ultrapure water is too high, and almost only water molecules are contained in the composition, and elements such as organic matter, microorganisms, and minerals have basically been removed by technology. Ultrapure water is mainly used in industrial production to prepare various solutions, such as nutrient solution for bacterial culture, battery electrolyte, chemical reagents, etcOr it is to flush precision materials, such as silicon wafers, integrated circuits, diodes, etc. Due to its high purity, it will hardly interfere with the results of chemical experiments and will hardly pollute the production quality of high-precision materials.
The technology of EDI ultrapure water equipment to produce ultrapure water has been quite mature, which adopts the treatment process of two-stage reverse osmosis system + EDI module, and the effluent resistivity can reach 16 m * cm (25). After the two-stage reverse osmosis system treatment, the organic matter, inorganic salts, metal ions, viruses and other substances in the water will be effectively separated. This is because the reverse osmosis system is equipped with reverse osmosis membrane separation technology, which has a small pore size and a nano-scale separation material design, which has strong ion retention effect and anti-pollution ability.
The EDI module is also one of the advantageous process sections in the EDI ultrapure water equipment, which will not produce pollutants and acid and alkali waste liquid in the process of ultrapure water production and treatment, and has excellent environmental performance. Its influent water comes from the secondary reverse osmosis water, the water quality is very good, and the quality of the concentrated water produced after EDI desalination can still be better than the primary reverse osmosis water, and it can be refluxed to the primary reverse osmosis tank.
In general, the ultrapure water produced by EDI ultrapure water equipment has good water quality, the production process is stable, safe and pollution-free, and the practical value and environmental protection value are very high.
Edit: Novelty Technique: M.
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