Pure water is pure water is generally city tap water as a water source, through multi-layer filtration, microorganisms and other harmful substances can be removed, but also removed fluoride, potassium, calcium, magnesium and other minerals needed by the human body.
First, ozone sterilization of ultrapure water treatment
Ozone (O3) disinfection principle is: ozone at room temperature, atmospheric pressure, the molecular structure is not stable, and soon decomposed into oxygen (O2) and a single oxygen atom (O); the latter has a very strong activity, the bacteria have a strong oxidation effect, will kill them, the excess oxygen atoms will recombine to become common oxygen atoms (O2), there is no toxic residue, so it is known as a non-polluting disinfectant, which is not only a variety of bacteria (including hepatitis viruses, macrosomia), but also a variety of bacteria (including hepatitis viruses, macrosomia) and a variety of bacteria (including hepatitis viruses, macrosomia). It not only has strong ability to kill various bacteria (including hepatitis virus, Escherichia coli, green bacillus and bacteria, etc.), but also very effective in killing the bacterium.
1, ozone sterilization mechanism and process class belongs to the biochemical process, oxidative decomposition of glucose internal oxidation of glucose must be glucose oxidase.
2, direct interaction with bacteria, viruses, destruction of their organelles and ribonucleic acid, decomposition of DNA, RNA, proteins, lipids and polysaccharides and other macromolecules polymers, so that the bacterial material metabolism, production and reproduction process to the destruction.
3, penetrate the cell membrane organization, invade the cell membrane role in the outer membrane lipoproteins and internal lipopolysaccharide, so that the cell permeability aberration, leading to cell lysis and death. And the death of the bacterial body genes, parasitic strains, parasitic virus particles, phages, phage and pyrogens (bacterial and viral metabolites, endotoxins), such as dissolution and denaturation of the death of the bacterial inactivation.
Activated carbon adsorption water treatment process
Activated carbon relies on adsorption and filtration to remove foreign color, odor, residual chlorine, residual disinfectants and other organic impurities in the water.
Third, membrane microporous filtration (MF) pure water treatment process
Membrane microporous filtration method includes three forms: deep filtration, screen filtration, surface filtration.
Deep filtration is made of woven fiber or compressed material matrix, the use of sui adsorption or capture to retain particles, such as commonly used multi-media filtration or sand filtration; deep filtration is a more economical way to remove more than 98% of the suspended solids, and at the same time to protect the downstream purification unit will not be clogged, and therefore is usually done as a pre-treatment.
Surface filtration is a multi-layer structure, when the solution passes through the membrane, the particles that are larger than the pores inside the membrane will be left behind and mainly accumulate on the surface of the 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 as pretreatment or clarification.
Sieve mesh filter membrane is basically a consistent structure, like a sieve, will be larger than the pore size of the particles, are left on the surface (the amount of holes in this membrane is very accurate), such as ultrapure water machine end-use with the point of use of security filters; sieve filtration microporous filtration generally placed in the purification system in the end-use point to remove residual residues after the trace of resin flakes, carbon debris, colloidal and microorganisms.
Fourth, ion exchange water treatment process
The principle of the ion exchange method is the inorganic salt anions and cations in the water, such as calcium ions Ca2+, magnesium ions Mg2+, sulfate SO42-, nitrate NO3-, etc., by exchanging with the ion exchange resin, so that the anions and cations in the water and the anions and cations in the resin are exchanged, so that the water can be purified.
Fifth, reverse osmosis (RO) pure water treatment process
It is to pressure as a driving force, the use of reverse osmosis membrane can only permeate water and can not pass through the selectivity of solutes, from the water containing a variety of inorganic substances, organic matter, microorganisms, the extraction of pure water material separation process. Reverse osmosis membrane pore size is less than 10 Å (1 Å is equal to 10-10 meters), has a strong sieving effect, its desalination rate of up to 99%, sterilization rate of more than 99.5%. Inorganic salts, sugars, amino acids, bacteria, viruses and other impurities in water can be removed. If the raw water quality and water quality as a benchmark, after appropriate design, RO is the tap water purification of economic and effective methods, but also a good pre-treatment of ultrapure water system.
Six, ultrafiltration (UF) pure water treatment process
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Microporous membrane is based on the size of its filtration aperture to remove particles, and ultrafiltration (UF) membrane is like a molecular sieve, it is based on the size of the benchmark, so that the solution through the very fine holes, in order to achieve the separation of different sizes of molecules in the solution of the purpose.
Ultrafiltration membranes are strong, thin, selectively permeable membranes that are generally considered to have a filtration pore size of approximately 0.01 μm, and can retain molecules above a particular size, including: gums, microorganisms, and heat sources. Smaller molecules, such as water and ions, can pass through the membrane.
Seven, ultraviolet (UV), ozone sterilization ultrapure water treatment process
The 254nm/185nm ultraviolet rays radiated by ultraviolet lamps can effectively kill bacteria and degrade organic matter.
Eight, EDI pure water treatment process
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A new deionized water treatment method. Also known as continuous electrodesalination technology, EDI device will be ion exchange resin charged clamped between the anion / cation exchange membrane to form the EDI unit. This method does not need to regenerate the resin with acid and alkali, good environmental protection.
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