Power plant water treatment plant, there is a carbon removal device, the expert pointing out what the principle is it?
The solubility of carbon dioxide gas in water obeys Henry's law, i.e., the solubility of gases in solution is proportional to the partial pressure of the gas on the liquid surface at a given temperature. So only to reduce carbon dioxide gas in contact with the water in the partial pressure of carbon dioxide dissolved in water and free from water will be desorbed, which will remove carbon dioxide free water, carbon remover is the principle of design!
The role of carbon dioxide removal in the process of ion exchange water treatment is to remove carbon dioxide from water, to reduce the load of anion exchange, to improve the economy of the water treatment system and the water quality of the effluent. The equipment uses blast degassing to remove the free carbon dioxide in the water. When the carbon dioxide content (Alkalinity) in the influent is greater than 50mg / 1, the carbon dioxide removal device is more economical and reasonable in the stage bed cleaning system. Behind the water treatment process in general on the hydrogen ion exchanger, as long as the choice of the right, the carbon remover, water residue of carbon dioxide is less than or equal to 5mg/L.
The water enters from the upper part of the carbon removing device and is poured down by the water distribution equipment and enters the water tank from the lower part through the filling layer. In addition to carbon, due to the blocking effect of filler, flow down from the top of the water is dispersed into many small stocks or drop, from the bottom of the drum into the air and water contact area is very large, and the partial pressure of carbon dioxide in the air is very low, so it will come out from the water desorption carbon dioxide quickly away. Water can be removed by blowing carbon, which can reduce the carbon dioxide content to below 5mg/L. In fact, the simple point is that the amount of dissolved gas in water is proportional to the pressure of the air he touches. This principle is similar to the principle of the atmospheric Deaerator in the power plant. I hope I can help you
