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What is the role of scale inhibitors in the operation of reverse osmosis equipment- Pure Water Equipment - Jiajie - Jiajie Pure Water Equipment Manufacturer


Reverse osmosis is a membrane separation equipment driven by working pressure through the selection of a permeable (semi permeable) membrane. When the working pressure applied in the system software exceeds the permeate concentration of the solution, water continuously passes through the membrane, passes through the production channel, and is injected into the management center pipe. Then, residue in the water, such as positive ions, organic compounds, bacteria, virus infections, etc., is discharged at one end, intercepted on the permeate side of the membrane, and then discharged at the effluent end of the concentrated water outlet to achieve separation and purification treatment. The source water is subjected to detailed filtration devices, particulate activated carbon filtration devices, and reduced activated carbon filtration devices. Then, according to the pump charging pressure, a diameter of 1/10000 is applied μ The reverse osmosis membrane of m converts water with higher concentration into water with lower concentration. In addition, it protects many residues that seep into the water, such as industrial air pollutants, heavy metals exceeding standards, bacteria, virus infections, etc., in order to meet the chemical composition and quality standards required for consumption, and produce water with a yield of pure to mellow.

The reverse osmosis membrane is the main equipment of the reverse osmosis system software. When the system software operates continuously for a long time, calcium and magnesium low-temperature plasma in the water will continue to precipitate and adhere to the surface of the reverse osmosis membrane, causing scaling and blocking the membrane pores. This can harm the high efficiency of the reverse osmosis system software's effluent and damage the reverse osmosis membrane. Due to the high cost of reverse osmosis membranes, it is necessary to upgrade the dosing device during system software operation, add reverse osmosis scale inhibitors to water, and slow down the precipitation of chlorite and membrane fouling.

The basic function of reverse osmosis scale inhibitors is to enhance solubility. When reverse osmosis scale inhibitors dissolve water, they produce hydrolysis, which is transformed into negatively charged molecular structural chains. They form complex ions or chelates with Ca2+that can dissolve water, thereby improving the solubility of carbonates and having anti scaling effects.

Reducing precipitation effect: In system software with scale inhibitors, the ion product value of the components that are prone to scaling, such as anions, cations, and cations, gradually precipitates, which is much larger than the critical value without scale inhibitors.

Dispersion effect: When there is an inhibitor, the particle size of the precipitated particles is small and difficult to cohere, making it more difficult to settle the foundation than when there is no inhibitor.

Lattice constant deformation effect: The crystals precipitated in system software with scale inhibitors include spherical, polyhedral, small snowflake shaped, and other amorphous forms. It is generally believed that amorphous crystals are crystals that, during the entire process of crystal growth and development, scale inhibitors are adsorbed on the surface of the crystal bud, causing a sudden decrease in the growth and development rate of its surface layer, resulting in a different growth and development from its original appearance.

Lower limit utility: The amount of mud in the scale inhibitor is much lower than the scaling component in water, but it can also indicate the actual effectiveness of scale inhibition.

Scale inhibitors can prevent the deposition of residues and the formation of scale in reverse osmosis machinery and equipment, greatly improve filtration devices, enhance water quality and production, and make outstanding contributions to the conservation of water, electricity, and energy.


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