This filter media is made of interwoven fibers, resulting in a flexible material with variable porosity. Compared to traditional rigid granular filter media, it offers advantages such as excellent elasticity, no floating on the water surface, large pore size, long service life, and low head loss. During filtration, the working pressure and the weight of the upper layer of sediment and the saturated filter media create a filter layer with a distribution that is sparse on top and dense at the bottom. Its extremely large surface area and porosity allow it to effectively adsorb and retain suspended solids in the water. The pore size of the filter layer gradually decreases along the direction of water flow, which closely resembles the ideal filter media structure with larger pores on top and smaller pores at the bottom, resulting in high efficiency, fast filtration rate, large loading capacity, and excellent filtration performance. It is also regenerable and can be used for backwashing, with a backwash volume of 1-2% of the filtered water, making it suitable for filtering various water qualities.

Fiber ball

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