Ultrapure water is often used in industry to clean silicon wafers, liquid crystal displays, diodes, photovoltaic materials, electronic chips, etc., and is also one of the important production raw materials in cosmetics, food processing, medical and pharmaceutical industries. Its production quality determines the quality of products in many industries, and can help enterprises improve economic benefits. The main reason for the name of ultrapure water is that it has high purity, almost no other components except water molecules, and does not contain metal ions, minerals, organic matter, etc., which will be contained in ordinary household water, so it is called "ultrapure water".
EDI ultrapure water equipment is often used in industry for ultrapure water preparation, which has the advantages of stable effluent quality, not easy to scale, low energy consumption, continuous operation, strong automation, and no pollution, and is favored by major enterprises. It mainly adopts the treatment process of "two-stage reverse osmosis + EDI", mainly reverse osmosis membrane technology and EDI desalination technology, which together constitute ultrapure water treatment technology.
Reverse osmosis membrane is a membrane separation technology dedicated to the separation of nano-scale substances in water, which does not rely on high-temperature evaporation and chemical reaction reagents, and can play a role under normal temperature physical conditions. Its operation is driven by pressure, which can effectively intercept various metal ions, organic matter, bacteria, microorganisms and other substances in ultrapure water, and has strong anti-pollution ability, which is not easy to clog, and prolongs the service life of EDI ultrapure water equipment.
EDI technology can achieve charged operation and can achieve deep desalination of ultrapure water. It accelerates ion migration and increases the desalination rate of the equipment. The influent water of the EDI module is generally the second-stage reverse osmosis water, and the quality of the concentrated water produced after desalination is better than that of the first-stage reverse osmosis produced water, which can be returned to the first-stage reverse osmosis production tank to enter the next stage of treatment. The treatment process at this stage does not produce acid and alkali waste liquid, which can avoid pollutants caused by acid and alkali neutralization reaction, and has good environmental performance.
All in all, EDI ultra-pure water equipment can achieve stable and continuous effluent quality, low energy consumption, pollution-free, simple operation and strong automation, which is a reliable "good helper" in the production of enterprises.
Edit: Novelty Technique: m.
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