What is Shallow Sand Filter?
Shallow sand filter is a device that uses a sand layer for filtering. Its core part is a filter tank filled with quartz sand. The size of the quartz sand particles is strictly screened and stacked layer by layer to form countless tiny pores. When water flows through the sand layer, these pores are like checkpoints, intercepting suspended matter, colloids, silt and other impurities in the water, thereby purifying the water quality.
The working principle of the shallow sand filter seems simple, but it contains scientific principles. It mainly relies on the following three functions to achieve efficient filtration:
1. Mechanical screening: Just like a sieve sifting rice, the quartz sand layer directly intercepts impurity particles larger than the pores.
2. Adsorption: The surface of quartz sand carries an electric charge, which can adsorb colloidal particles with opposite charges in the water, causing them to condense into larger particles and be intercepted.
3. Sedimentation: When the water flow slows down, some tiny particles will settle on the surface of the sand layer under the action of gravity.
The shallow sand filter is not only efficient, but also simple to operate and maintain.
When the impurities accumulated in the filter layer reach a certain level, backwashing is sufficient to remove the impurities and restore the filtering capacity. Backwashing is simple and easy to operate and can be completed without the need for professionals.
Shallow sand filters are widely used and are an ideal choice for solving water quality problems.
It is suitable for homes, schools, hotels, factories and other places. It can be used to treat a variety of water sources such as tap water, well water, and river water, effectively removing impurities from the water, improving water quality, and ensuring water safety. Choosing a shallow sand filter is choosing health and peace of mind.
Any requirements, contact us now!
Nina
Email: nina@filtrationchina.com
Mobile/Whatsapp/WeChat：+86 172 6957 1060
