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The Principle Of Filtration
Aug 22, 2017



Filtration is an important method of water purification, the purpose of this paper is to study the role of filtration in the water purification process. This paper introduces the deficiency of aluminum, Filter heavy metals and fluoride on the human body, and analyzes the shortcomings of the traditional filtration method. It proves that the combined filtration method can not only remove the fine suspended matter particles in the water, Filter but also the aluminum, heavy metals, Also have a good filter effect.

Principle of filtration: Under the action of pressure difference, the liquid (or gas) in the suspension is trapped through the permeable medium (the filter medium) and the solid particles as the medium, Filter thus separating the liquid and the solid.

Filtration is a process of separating the solid particles suspended in a liquid or gas.

1) to achieve the two conditions of filtering:

① Filter have the necessary equipment to achieve the separation process;

② filter on both sides to maintain a certain pressure difference (driving force).

2) commonly used filtration method can be divided into gravity filter, vacuum filtration, pressure filtration and centrifugal filtration several.