How does a sand carbon filter work?

The Sand Carbon Filter Tank is a common water treatment equipment, operating primarily on the principles of sand layer filtration and the adsorption characteristics of activated carbon. Here is the working principle of the Sand Carbon Filter Tank for your reference:

One: Sand Layer Filtration:

The sand filter tank is filled with two layers of filtering media: coarse sand and fine sand. As water enters the tank from above, it first passes through the coarse sand layer. In this layer, larger suspended particles and debris are trapped at the surface of the sand, forming an initial filtering layer. Then, the water continues into the fine sand layer, further removing finer particles and debris. Through the filtering action of the sand layers, suspended particles and debris in the water are effectively removed.

Activated Carbon Adsorption:

In addition to sand layer filtration, the sand carbon filter tank utilizes the adsorption characteristics of activated carbon to remove impurities and pollutants from water. Activated carbon has a large specific surface area and a rich micro-porous structure, capable of吸附 organic pollutants, residual chlorine, odors, and pigments in water. As water passes through the activated carbon layer, these pollutants are adsorbed on the surface and in the micro-pores of the activated carbon, thereby purifying the water quality.

In summary, the sand-carbon filter tank, through the dual actions of sand layer filtration and activated carbon adsorption, can remove suspended matter, particulate matter, and organic pollutants from water, thereby improving the quality of the effluent. Additionally, the sand-carbon filter tank boasts simple structure, ease of operation, and low maintenance costs, making it widely used in the water treatment field.