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How many specific water treatment processes for pure water do you know?

Released Date: Jul 22,2020 Article Source: Yuanlai Water Treatment
Pure water: It refers to water that is generally sourced from urban tap water and filtered through multiple layers to remove harmful substances such as microorganisms. Below, the author will take you through a variety of different pure water treatment processes

Pure waterIt refers to pure water, which is generally sourced from urban tap water and filtered through multiple layers to remove harmful substances such as microorganisms.

      Below, the author will take you through a variety of different pure water treatment processes


I. Ozone Ultrapure Water Treatment

 OzoneO3The principle is that it has a very strong oxidizing effect, killing it without leaving any toxic residues. It not only has an extremely strong killing ability against various bacteria (including hepatitis viruses, Escherichia coli, Pseudomonas aeruginosa and miscellaneous bacteria, etc.), but is also very effective in killing mycin. 

Ii. Activated Carbon Adsorption Pure Water Treatment Process

      Activated carbon, relying on adsorption and filtration functions, mainly removes organic impurities such as discoloration, odor, residual chlorine and residues in water.

Iii. Membrane MicrofiltrationMFPure water treatment process

The thin-film microfiltration method includes three forms: deep filtration, screen filtration and surface filtration. 

Deep filtrationIt is a matrix made of woven fibers or compressed materials that retains particles through inert adsorption or capture methods, such as commonly used multi-media filtration or sand filtration. Deep filtration is a relatively economical way to remove98%The above-mentioned suspended solids also protect the downstream purification units from being clogged, and thus are usually used as pretreatment. 

Surface filtrationIt is a multi-layer structure. When the solution passes through the filter membrane, particles larger than the internal pores of the filter membrane will be retained and mainly accumulate on the surface of the filter membrane, such as the commonly used onesPPFiber filtration. Surface filtration can remove it99.9%The above-mentioned suspended solids can also be used for pretreatment or clarification. 

Screen filter membraneBasically, it has a consistent structure, just like a sieve, leaving particles larger than the pore size on the surface (the pore size of this filter membrane is very large), such as the point-based security filter used at the terminal of the ultrapure water machine. Sieve filtration and microfiltration are generally placed at the final point of use in the purification system to remove residual trace amounts of resin flakes, carbon shavings, colloids and microorganisms.

Iv. Ion ExchangeIXPure water treatment process

       The principle of ion exchange is to convert inorganic salt cations and anions in water, such as calcium ionsCa2+Magnesium ionsMg2+SulfateSO42-NitrateNO3-By exchanging with ion exchange resin, the anions and cations in water are exchanged with the cations and anions in the resin, thereby purifying the water.

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V. Reverse OsmosisROPure water treatment process

      It is a material separation process that uses pressure as the driving force and takes advantage of the selectivity of reverse osmosis membranes that only allow water to pass through but not solutes to extract pure water from water bodies containing various inorganic substances, organic substances, and microorganisms. The pore size of the reverse osmosis membrane is less than10"E1An "e" equals10-10It has a very strong screening effect and its desalination rate is as high as99%The rate is greater than99.5%. It can remove inorganic salts, sugars, amino acids, viruses and other impurities in water.

       If the quality of the raw water and the produced water is taken as the benchmark and after appropriate design,ROIt is an economical and effective method for purifying tap water and also a good pretreatment method for ultrapure water systems.

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Vi. UltrafiltrationUFPure water treatment process 

Microporous films remove particles based on the size of their filtration pores, while ultrafiltration(UF)The film is like a molecular sieve. It uses size as a reference and allows the solution to pass through extremely fine pores to achieve the purpose of separating molecules of different sizes in the solution. 

Ultrafiltration membranes are tough, thin, and selective permeable membranes, and it is generally believed that their filtration pore size is approximately0.01μmIt can retain molecules of a certain specific size or larger, including: gums, microorganisms and pyrogens. Smaller molecules, such as water and ions, can all pass through the filter membrane.

Vii. Ultraviolet Rays(UV)Ozone ultra-pure water treatment process

      Emitted by ultraviolet lamps254nm/185nmUltraviolet rays can effectively kill and degrade organic matter.

Viii.EDIPure water treatment process

      A new deionized water treatment method. Also known as continuous electro-deionization technologyEDIThe device fills the ion exchange resin between the anions/Formation between cation exchange membranesEDIUnit. This method does not require the regeneration of resin with acid or alkali anymore, and it is environmentally friendly.


Beijing Yuanlai Water Treatment - Not only processes and manufactures large-scale water treatment equipment, but also acts as an agent for a series of advantageous water treatment product accessories. We have a full range of products and offer you favorable factory prices to minimize your costs to the greatest extent!


       Main supporting water treatment accessoriesSelling FRP resin tanks, acting as an agent for Chengfeng control valves, salt tanks, dosing tanks and water tanks; The United StatesFLECKControl valveSEKOFirst-level agent for metering pumps, ultraviolet devices, UKPUROLITEThe general agent of Piaolite resin, Shanghai Zhen Guang Resin, Southern Pump, Yuanlai stainless steel membrane housing and fiberglass reinforced plastic membrane housing;EDIModules, precision filters, USADOWDow membrane, Hydranautics membrane, Huitong membrane, filter housing, filter element, pressure protection switch, pressure gauge, flow meter, scale inhibitor, level switchGFInstruments and meters, solenoid valves, pressure tanks, …………

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Yuan LaiEDIThe ultra-pure water equipment uses electro-deionization technology.EDIElectrodeionization is a water purification method that combines the dual advantages of electrodialysis and ion exchange. It does not require acid-base chemical regeneration and can continuously and stably prepare high-purity ultrapure water. Under the action of a direct current electric field, ion separation in water is completed. At the same time, water is electrolyzed to generate hydrogen ions and hydroxide ions, achieving automatic regeneration of the resin without the need to stop the machine for manual regeneration. The pre-treatment combined with reverse osmosis can prevent oxidized substances from damaging the resin, ensuring stable effluent quality and widely meeting the high-standard water usage requirements of various industries.

Non-negative pressure water supply equipment

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