1. Activated Carbon Water Filter
Activated carbon water filters are the most common. They are mostly made of carbonaceous materials such as coal and fruit shells (cores) through chemical or physical activation methods. They have very large pores and specific surface area, so they have a strong adsorption capacity and can be effective. To adsorb organic pollutants in water.
In addition, during the physical activation process, some oxygen-containing functional groups will be formed on the non-crystalline parts of the surface of the activated carbon. These groups can make the activated carbon have the properties of chemical adsorption, catalytic oxidation and reduction, and can effectively remove some metal ions in water.
2. Reverse Osmosis Water Filter
The reverse osmosis water filter uses a special separation technology that uses pressure to pass water through a synthetic membrane, and this membrane will exclude contaminants and only allow pure water to pass, which has a higher cost and water purification effect. Better, suitable for areas with poor water quality.
3. Compound Water Filter
Compound water filters are usually made with two or more technologies. In the composite water filter, the membrane technology composite water purifier has excellent water purification performance, and has a relatively significant effect on the removal of microorganisms (bacteria, algae, etc.) in the water, and can be consumed raw after the water is discharged.
1. The first level is the filter element, also known as PP cotton filter element (PPF);
2. The second-stage granular activated carbon (UDF) filter element;
3. The third level is the precision compressed activated carbon (CTO) filter element;
4. The fourth stage is reverse osmosis membrane or ultrafiltration membrane;
5. The fifth level is post-activated carbon.