Fiber Ball Filter Material Used for Water Purification

Fiber ball filter material works on the principle of mechanical filtration to physically remove suspended solids and absorb dissolved contaminants from water.

The fiber balls are composed of interwoven polyester fibers formed into a 3D matrix structure. During filtration, water passes through millions of tiny pores within and between the individual fibers.

Suspended particles too large to pass through the pore spaces become trapped on the fiber surface or wedged between fibers. Over time, a collection of captured solids forms a filtration cake layer that further blocks passage of particulates.

Meanwhile, the immense internal surface area exposure provided by the convoluted fibers allows contaminants at a molecular/ionic level to be attracted to and adhere onto the material through processes like Van der Waals forces.

Fiber balls utilize a variety of sorption mechanisms to assimilate different pollutants. Chemical bonding may immobilize heavy metals and metalloids, while physical adsorption removing organics based on relative polarities.

Micro-cavities in the fiber network generate high negative pressure that sucks contaminants deeper inside, where they become permanently sequestered against being dislodged during backwashing.

Filtered water must penetrate entirely through the three-dimensional fiber matrix, significantly extending pathogen and particle contact time with purification medium. This ensures maximum contaminant removal ability.

As water passes through, a thin biofilm layer naturally cultivates on the fiber surface. Symbiotic microbes within this layer help break down any remaining organic contaminants through biodegradation.

The combined physical filtration, sorption and natural biological treatment rendered by fiber ball material's highly porous network achieves reliable water purification in a simple, cost-effective and sustainable way.