Water Filtration System (2)

The physical methods include using various filter materials with different pore sizes to exclude impurities in water by means of adsorption or blocking. Activated carbon is the most important method of adsorption. The barrier method is to pass water through the filter materials so that larger impurities can not pass through, and then obtain cleaner water. In addition, the physical method also includes a precipitation method, in which an impurity having a small specific gravity is floated on the surface of the water, or an impurity having a large specific gravity is precipitated, and then obtained.