Many netizens in consulting questions about the service life of the sewage treatment equipment
today small make up this site on the Internet to find four article on the service life of the sewage treatment equipment related information, please follow look small make up paint wastewater treatment facility on impact when certain substances in the solid surface, attracted by the unbalanced force will stay in the solid surface, this is the phenomenon of adsorption, the adsorption in the equipment is mainly divided into three categories, respectively introduce the solute (here
Ion due to electrostatic gravity gathered in adsorption on the surface of the belt on the pastry, and replace the original fixed these charged point of other ions, sewage treatment equipment is ion exchange belongs to the scope, the impact on exchange adsorption is by ionic charge number and the size of the hydrated radius is refers to the solute (
Gas or liquid molecules)
And because of intermolecular forces between adsorbent (
Also known as van der Waals force)
Produced by adsorption, it is a reversible process, sewage treatment equipment when the solid surface and the gas or liquid molecules of gravity is greater than the gas or liquid inside the intermolecular forces, gas or liquid molecules are absorbed on the solid surface from the kinetic theory point of view, these molecular adsorption on solid surface will because of molecular motion, make its out of and into a gas or liquid from the solid surface, its itself does not have any chemical change, when the temperature rises, the gas (
Part of kinetic energy increases, the molecules will not easy to stay in the solid surface, this is the so-called stripping sewage treatment engineering, the adsorption stripping of reversible phenomenon exists in physical adsorption, industrial use of this kind of phenomenon, by changing the operating conditions, the adsorption stripping, adsorbent adsorption material regeneration and recycling or separation refers to the sewage treatment equipment is the purpose of the solute and the adsorbent produces chemical reaction, forming strong chemical bonds and surface adsorption complex, adsorbate molecule cannot move freely on the surface, because of the sewage treatment equipment service life of the chemical adsorption combined with strong, regeneration is solid hard, must at high temperatures to fist-size pile, stripping down is likely to be the original adsorbate, may also is a new material, chemical adsorption are often irreversible, such as: nickel catalyst hydrogen adsorption, the adsorption gas often all at high temperature is needed to escape, the gas released from the sewage treatment equipment and often a chemical change has taken place, no longer has the nature of the original one, the area of traditional sewage treatment facilities buried sewage treatment equipment shell generally used carbon steel welding, pipe and iron bean products wastewater treatment equipment, so the early equipment casing corrosion is a disease, its service life generally in 3 years or so the appearance of glass fiber reinforced plastic is favored by a lot of water treatment equipment manufacturers, PVC pipe also improved the working life of the equipment, now a new type of FRP can be up to 20 - buried sewage treatment equipment life
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