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The ion exchange system is a traditional water treatment process that uses anion and cation exchange resins to replace various anions and cations in w
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ion exchangeThe system is a traditional water treatment process that uses anion and cation exchange resins to replace various anions and cations in water. The anion and cation exchange resins are combined in different proportions to form the systemion exchangeMixed bedThe mixed bed system is usually used inreverse osmosisAfter the water treatment process, it will be used to produceultrapure water，high-purity waterThe terminal process is one of the irreplaceable means for preparing ultrapure water and high-purity water. The conductivity of the effluent can be below 0.2 μ S/cmresistivityReaching 5M Ω· cm or above, the effluent resistivity can be controlled between 5-18M Ω· cm according to different water quality and usage requirements. Widely used in the preparation of ultrapure water and high-purity water for industrial and pharmaceutical applications such as electronics, ion exchange resin systems, boiler feed water, etc.
Ion exchange equipmentIt's traditionalDeionized water equipmentIts water quality is stable and the cost is relatively low. In the pastPower plant boilerThe supply water is supplied usingYang bed+Yin bed+Mixed bedProcessing technology.
Since 2010, withreverse osmosis、 The development of EDI and other processes has made ion exchange equipment complex to operate, difficult to achieve automation, and wasteful of acid and alkali,operating costHigher drawbacks are more prominent and are more commonly used in deep processing of reverse osmosis.
Small ion exchange devices are often usedorganic glassExchange columns are beneficial for observing the operation of resin. asMixed ion exchangerWhether the regeneration layer is sufficient, whether the cations are "poisoned", and the resin loss situation.
Large ion exchange equipment uses carbon steel lined with epoxy resin orrubber liningReserve a visual device in the middle for online observation of the water level of the regeneration solution during ion regeneration.
1. Industrial ultra pure water treatment process is currently used in industryultrapure waterOne of the most widely used processes in the preparation of.
2. Food industryion exchange resinCan be used in industrial equipment for refining sugar, monosodium glutamate, wine, and biological products.
3. Ionic exchange resins in the pharmaceutical industry play an important role in the development of new generation antibiotics and the quality improvement of existing antibiotics.streptomycinThe successful development is a prominent example.
4. Synthetic Chemistry andPetrochemical industryAcid and base are commonly used as catalysts for esterification in organic synthesishydrolysisReactions such as ester exchange and hydration.
5. Metal ions in electroplating wastewater, recovery of useful substances from film production wastewater, etc.
6. Wet metallurgy and other ion exchange resins can separate, concentrate, purify, and extract uranium from depleted uranium orerare earth elementsAnd precious metals.
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