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Pure water treatment process, just read this one!

Author:chunke Click: Time:2021-08-30 00:00:00 From:Guangzhou chunke environmental technology co.,ltd

Pure water refers to pure water, which generally uses urban tap water as the water source. Through multi-layer filtration, harmful substances such as microorganisms can be removed, but at the same time, it also removes fluorine, potassium, calcium, magnesium and other minerals required by the human body.


1、Ozone sterilization ultrapure water treatment

The disinfection principle of ozone (O3) is: the molecular structure of ozone is unstable at normal temperature and pressure, and it will quickly decompose into oxygen (O2) and a single oxygen atom (O); the latter has strong activity and is extremely active against bacteria. Strong oxidation will kill it, and the excess oxygen atoms will recombine themselves into ordinary oxygen atoms (O2). There is no toxic residue, so it is called a pollution-free disinfectant. It is not only effective against various bacteria (including hepatitis) Viruses, Escherichia coli, Pseudomonas aeruginosa and other bacteria, etc.) have a very strong killing ability, and it is also very effective for killing mycin.


1)The sterilization mechanism and process of ozone belong to the biochemical process. Oxidation decomposes glucose oxidase, which is necessary for oxidizing glucose inside bacteria.

2)It directly interacts with bacteria and viruses, destroys their organelles and ribonucleic acid, decomposes DNA, RNA, proteins, lipids and polysaccharides and other macromolecular polymers, so that the process of material metabolism and reproduction of bacteria is destroyed.

3)Penetrate the cell membrane tissue, invade the cell membrane and act on the outer membrane lipoproteins and internal lipopolysaccharides, causing the cells to undergo permeation distortion, leading to cell lysis and death. In addition, the genetic genes, parasitic species, parasitic virus particles, bacteriophages, mycoplasma and pyrogens (bacterial virus metabolites, endotoxins) in the dead bacteria are dissolved, denatured and killed.


2.Activated carbon adsorption pure water treatment process

Activated carbon mainly removes organic impurities such as different colors, odors, residual chlorine, residual disinfectants, etc. in the water by virtue of adsorption and filtration.


3.Membrane microporous filtration (MF) pure water treatment process

1)Membrane microporous filtration includes three forms: depth filtration, mesh filtration, and surface filtration.

2)  Depth filtration is a matrix made of woven fibers or compressed materials, which uses inert adsorption or capture methods to retain particles, such as commonly used multi-media filtration or sand filtration; deep filtration is a more economical way to remove 98 % Of suspended solids, while protecting the downstream purification unit from being blocked, so it is usually used as a pretreatment.

3) Surface filtration is a multi-layer structure. When the solution passes through the filter membrane, particles larger than the pores inside the filter membrane will be left behind and mainly accumulated on the surface of the filter membrane, such as the commonly used PP fiber filtration. Surface filtration can remove more than 99.9% of suspended solids, so it can also be used for pretreatment or clarification.

4)  The mesh filter membrane basically has a consistent structure, just like a sieve, leaving particles larger than the pore size on the surface (the pore measurement of this filter membrane is very accurate), such as the end-use ultrapure water machine Use a security filter; screen filtration and microporous filtration are generally placed at the final point of use in the purification system to remove the last remaining traces of resin flakes, carbon chips, colloids and microorganisms.


4、Ion exchange (IX) pure water treatment process

The principle of the ion exchange method is to exchange the inorganic salt anions and cations in water, such as calcium ion Ca2+, magnesium ion Mg2+, sulfate SO42-, nitrate NO3-, etc. Anion and cation exchange, so that the water is purified.


5. Reverse osmosis (RO) pure water treatment process

It uses pressure as the driving force and uses the selectivity of reverse osmosis membranes to only permeate water but not solutes to extract pure water from a water body containing various inorganic, organic, and microorganisms. The reverse osmosis membrane has a pore size of less than 10 angstroms (1 angstrom is equal to 10-10 meters), and has a strong screening effect. Its salt rejection rate is as high as 99%, and the sterilization rate is greater than 99.5%. It can remove impurities such as inorganic salts, sugars, amino acids, bacteria and viruses in the water. If based on the quality of raw water and produced water, after proper design, RO is the most economical and effective method for purifying tap water, and it is also the best pretreatment method for ultrapure water systems.

The microporous membrane removes particles according to the size of its filter pore size, while the ultrafiltration (UF) membrane is like a molecular sieve, which is based on the size, allowing the solution to pass through very fine pores to achieve the purpose of separating molecules of different sizes in the solution. 



6.Ultrafiltration (UF) pure water treatment process

1)The microporous membrane removes particles according to the size of its filter pore size, while the ultrafiltration (UF) membrane is like a molecular sieve, which is based on the size, allowing the solution to pass through very fine pores to achieve the purpose of separating molecules of different sizes in the solution. 

2)Ultrafiltration membrane is a strong, thin, and selective permeable membrane. It is generally considered that its filtration pore size is about 0.01μm, which can retain molecules above a certain size, including: colloids, microorganisms and heat sources. Smaller molecules, such as water and ions, can pass through the membrane.


7.Ultra-pure water treatment process for ultraviolet (UV) and ozone sterilization

The 254nm/185nm ultraviolet rays emitted by the ultraviolet lamp can effectively kill bacteria and degrade organic matter.


8.EDI pure water treatment process

A new deionized water treatment method. Also known as continuous electric desalination technology, the EDI device fills the ion exchange resin between the anion/cation exchange membranes to form an EDI unit. This method does not need to regenerate the resin with acid and alkali, and is environmentally friendly.


Pure water treatment process, just read this one!
1、Ozone sterilization ultrapure water treatment The disinfection principle of ozone (O3) is: the molecular structure of ozone is unstable at normal temperature and pressure, and it will quickly decom
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