Media Filtration Systems are commonly used in filtering water for various purposes like drinking, bathing, irrigation and more. How does it work? This filtration system contains various media (stones and materials) such as gravel, sand, crushed granite, foam, crushed glass and geo-textile fabric. These media are arranged according to coarseness from top to bottom with the finer media at the top. This combination helps treat the water by removing silt, clay, algae and other organic matter.
There are different types of media filters, and they are chosen according to use and quality of water to be treated. Some of the factors to be considered are maximum required flow rate, the turbidity of the water, required quality of treated water and water supply availability.
The main advantage of a media filtration system is that it is easy to clean through a process called “backwashing.” During backwash, the water flows in the opposite direction of the normal flow. It removes the accumulated particles in the filter, so it will still be useful when it is used again.
A Media Filter Tank can be made of different materials, like fiber reinforced plastic (FRP), epoxy coated steel and stainless steel. The advantages of FRP is that it is lightweight, doesn’t rust and it doesn’t have to be painted. On the other hand, steel tanks are ideal for heavy duty and outdoor applications.
Parts of a Media Filter: