Principle Of Quartz Sand Filter

Quartz sand filter is a common water treatment equipment, its main role is to filter and purify water, so that the water becomes more pure and transparent. Its principle not only involves the movement and filtration of water, but also involves the nature and role of quartz sand.
1. Filtration principle
The main function of the quartz sand filter is to use the natural filtration principle to filter out the turbidity, impurities and microorganisms (including bacteria, viruses, etc.) in the water, thereby improving the purity of the water quality. Its filtration principle is based on fluid mechanics, because the water flow inside the quartz sand filter is forced, so water molecules will be forced through the quartz sand pores, so some large impurities and microorganisms will be filtered out.
There are multiple layers of filter materials inside the quartz sand filter, among which the upper quartz sand particles are larger, the lower quartz sand particles are smaller, and different levels of quartz sand particles have different filtration effects: The actual filtration effect of the larger particles is mainly to reduce the porosity in the sand particles, while the main role of the smaller particles is to trap microorganisms and fine particles, such as bacteria and viruses, in the filtration process. It should be noted that after a period of use, with the excess of quartz sand particles inside the quartz sand filter, the efficiency of removing impurities and microorganisms will decrease, therefore, it is necessary to regularly clean the quartz sand filter.
Second, the nature and role of quartz sand
Quartz sand is a kind of artificial or natural sand, mainly composed of siliceous minerals, and its size and porosity are important indicators to judge its quality. Quartz sand has high purity, uniform pore distribution, and small size differences, which can ensure the quality and circulation of water, which is why quartz sand is one of the important components of the filter.
The nature of quartz sand determines its role in the quartz sand filter, which is mainly manifested in the following aspects:
1. High filtration efficiency. The particles of quartz sand are uniform and the pores are fine, which can effectively remove the particles, suspended matter, impurities and pollutants in the water to ensure the cleanliness and health of the water.
2. Good water permeability. The quartz sand itself has good permeability and larger surface area, which can make the water flow quickly through the filter, thereby shortening the water treatment time and avoiding the waste of water.
3. Strong durability. Quartz sand has high hardness, strong compressive strength, can withstand the impact of water flow inside the filter, and is not easy to break.
4. Safety and hygiene. Quartz sand does not contain any harmful chemicals, will not release any toxic substances, pure ingredients, will not be harmful to human health.
In short, the principle of quartz sand filter is to use the natural filtration principle, through the physical action between the pores of quartz sand and the filter material levels, the pollutants, impurities and microorganisms in the water are filtered out to ensure the quality and health of the water. As one of the important components of the filter, quartz sand has the advantages of fine particles, uniform pore distribution, high filtration efficiency, good water permeability, strong durability and safety and health, which plays a crucial role in the performance of the filter and the quality of water.