Concentration polarization concept in membrane separation
Concentration polarization concept in membrane separation Black Silicon Carbide,Silicon Carbide,Sic Silicon Carbide,Dry Silicon Carbide ningxia hexing carbon based materials co.ltd , https://www.hexingsicmanufacture.com
During the membrane separation process, all the solute is transported to the surface of the membrane by the permeate. The solute that is not completely permeable to the membrane is affected by the retention of the membrane. The concentration near the surface of the membrane is higher. Polarized for concentration.
The concentration near the surface of the membrane increases, increasing the osmotic pressure difference across the membrane, reducing the effective differential pressure and reducing the permeate flux. When the concentration near the surface of the film exceeds the solubility of the solute, the solute precipitates to form a gel layer. When a liquid containing cells, cells, and other solid components is separated, a gel layer is also formed on the surface of the film. This phenomenon is called gel polarization.
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