The Difference of Anti-scaling Mechanism in Water Treatment
Water treatment in modern industrial production is a common problem. With the development of economic and industrial production technology, industrial-scale processing has received more and more attention from manufacturers.
If the scale is not treated in time, it is easy to cause damage to industrial production equipment, which will affect the normal production schedule and cause losses.
Scale inhibitors in order to solve the above problems. Scale inhibitors are one of the most effective water treatment chemicals.
Many experienced factory producers know that the sewage produced in industrial production is often different.
Even the same sewage will often differ in actual treatment. Otherwise, there will be no products such as reverse osmosis scale inhibitors or corrosion inhibitors.
The dirt generally consists of calcium carbonate, calcium phosphate scale, calcium sulfate, barium sulfate, magnesium, zinc, silicon scale and the like. The formation of calcium carbonate scale is mainly due to the increasing concentration of water and salt due to evaporation and concentration of water.
Calcium carbonate ions in water are added with calcium carbonate ions during aeration and combined with calcium ions. Calcium carbonate is produced and is present in a saturated state of water.
In addition, this will produce a large amount of tiny crystalline particles. It is then gradually precipitated through the cooling tube during the process of the tube wall to form a complete deposit, thereby fouling.
The scaled layer is continuously dissolved, and on the other hand, the gradually thickened, hardened precipitate is a process of dynamic equilibrium.
Scale inhibitors are mainly through chelation solubilization, threshold effect, lattice distortion, distortion, electrostatic repulsion or dispersion mechanism. To achieve the purpose of scale inhibition and dispersion.
The same is true for low molecular weight polyacrylic acid (sodium). The low molecular weight polyacrylic acid (sodium) has good water solubility and dispersibility, no scaling operation and a certain concentration of alkaline conditions.
The water treatment chemical has excellent adsorption and dispersion effects due to its structure having a plurality of carboxylic acid groups and solvation chains. And the microcrystalline particles are adsorbed on the microcrystalline particles to hinder the contact of the particles. To calcium carbonate, sulfates such as water precipitate crystallites or deposits are dispersed in order to achieve scale inhibition.
A component of corrosion and scale inhibitors in scale inhibitors and dispersants. It is an anionic organic substance and can adsorb microcrystalline particles and colloidal particles.
During the adsorption process, a new electric double layer is formed on the surface of the particles, causing a change in the state of charge. The principle of mutual exclusion of the same charge is stably dispersed in the solution.
So far, it has been considered by research that the positive anion of sodium polyacrylate in aqueous solution and the surface of the dirt are attracted and adsorbed on the surface of the microparticles due to the opposite charges. The adsorbent layer formed by the active dots covers the formed scale, making it impossible to continue to grow.
According to research, the scale inhibitor molecules in the process simulation pass through lattice distortion, or occupy crystals or embed in crystal growth. With a small change in molecular structure, the formation of scale is effectively prevented. Or cause lattice distortion in the internal crystal. Coulomb interaction and electrostatic adsorption behavior of polymer molecules with negatively charged functional groups and insoluble calcium salts with calcium ions.
The above is a brief introduction to the anti-scaling mechanism. If you don’t know the anti-scaling mechanism, please contact us.
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