Introduction and Principles of Small and Medium-sized Integrated Water Purification Equipment System

Introduction and Principles of Small and Medium-sized Integrated Water Purification Equipment System Functions

by:Ocpuritech     2021-06-27
Integrated water purification equipment for small and medium system functions and principle author of the article: Today's industrial development is very rapid, industrial products in daily life has been inseparable from the. The more complex the process of general industrial products, the better the product performance, and the higher the requirements for process water. Small and medium-sized integrated water purification equipment is developed in response to industrial needs, and the quality of the process water produced fully meets the industry standards. ①Mixed bed ion exchange purification column The mixed bed ion exchange purification column is formed by mixing anion exchange resin and cation exchange resin in proportion. The cation exchange resin uses its H+ exchange to remove cations in the water, and the anion exchange resin uses its OH-exchange to remove anions in the water. The H+ exchanged in the mixed bed resin combines with OH- to generate H2O, so the mixed bed ion exchange purification column can be used To deeply remove trace ions remaining in RO pure water. The mixed bed ion exchange purification column in the small laboratory ultrapure water device is usually for one-time use. Yongjieda mixed bed ion exchange purification column adopts imported nuclear-grade mixed bed resin, and its product water resistivity can reach 18.2MΩ.cm. ② EDI device continuous electrodeionization EDI (abbreviation of Electrodeionization) is to use mixed bed ion exchange resin to adsorb anions and cations in the water. At the same time, these adsorbed ions are continuously passed through the anion and cation exchange membrane under the action of DC voltage. The process of removal. This new technology can replace traditional ion exchange (DI) and produce ultrapure water above 10MΩ.cm. The biggest advantage of EDI deep desalination is that it can operate stably for a long time without using acid and alkali to regenerate the anion and yang resin. It is very suitable for the central preparation system of ultrapure water with a water production volume of more than 100L/h. The water quality is stable and the operating cost will be greatly reduced. The TOC will also Lower and more stable. Yongjieda EDI device usually produces water resistivity of about 15-18MΩ.cm. ③Pyrogen removal ultrafiltration membrane Ultrafiltration pyrogen removal has been widely used in the modern pharmaceutical industry. The pore size of ultrafiltration (Ultrafiltration, abbreviated 'UF') membrane is between reverse osmosis and microfiltration (approximately 0.01 to 0.1 μm), and is usually expressed by the minimum molecular weight cut-off. Yongjieda pyrogen removal ultrafiltration membrane adopts a polysulfone membrane with a molecular weight cut-off of 5000 Daltons, which can completely remove pyrogens (the smallest molecular weight is usually greater than 7000) and various microorganisms in the water. ④Ultraviolet germicidal lamp and TOC ultraviolet digester UV germicidal lamp uses 254nm wavelength ultraviolet radiation to sterilize, which can effectively destroy the DNA molecules of microorganisms and make them form TT dimers without reproduction. It is a safe and effective common sterilization method for air and water. . TOC UV Digester uses UV lamps that can simultaneously generate 185nm/254nm dual wavelengths. Among them, 185nm UV can generate ozone in the air to sterilize and deodorize, and generate hydroxyl radicals in water, which can quickly oxidize trace organic matter in pure water. For CO2, to achieve the purpose of removing TOC. ⑤Terminal filter The terminal filter with a pore size of 0.22um can thoroughly filter out bacteria, fungi, spores, resin fragments and all micron-level pollutants. The terminal filter has hollow fiber type, PP barrel filter, capsule filter, syringe filter, etc. The membrane material includes polypropylene, nylon, polyvinylidene fluoride, etc.
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