Fiber Ball | Modified Fiber Ball | High-Efficiency Fiber Ball

Working Principle Once loaded into a filter, fiber balls get compressed by the water pressure and form a bed that's loose up top and tight at the bottom. Water enters from the top and flows down through the bed, where suspended solids and oil are trapped and adsorbed by the fibers. The balls are elastic, so under pressure their pores get smaller and filtration accuracy goes up. During backwash, water flows upward, the bed expands, the balls loosen up, and the trapped contaminants get flushed out. Modified fiber balls resist oil adhesion thanks to their hydrophilic and oleophobic surface, so they regenerate better in backwash than regular ones. High-efficiency fiber balls pack more dirt-holding capacity into the same volume thanks to their larger surface area and better pore distribution. Application Fields 1.Oilfield reinjection water: removing oil and suspended solids to meet reinjection standards. 2.Industrial water supply: deep filtration for steel, chemical, and power industries. 3.Wastewater reuse: reclaimed water and cooling water side-stream filtration, cutting turbidity and oil content. 4.Swimming pools: circulating water filtration to keep the water clear. FAQ Q1: What's the difference between fiber balls and quartz sand media? A: Quartz sand is a rigid granular media that traps suspended solids in the gaps between grains. It tends to get gummed up by oil, which makes backwashing difficult. Fiber balls are a flexible media—their pores change under pressure, and their void ratio is much higher than quartz sand, so they hold more dirt. Modified fiber balls are hydrophilic and oleophobic, so they don't cake up as easily when treating oily wastewater, and they use less backwash water than quartz sand. That said, fiber balls don't handle high temperatures well and aren't ideal for wastewater with a lot of sharp particles. Q2: How are modified fiber balls different from regular ones? A: Mainly in surface properties. Regular fiber balls are oleophilic, so oil clings to the fiber surface and doesn't wash out cleanly during backwash—over time, they cake up. Modified fiber balls go through a hydrophilic and oleophobic treatment, so water spreads across the fiber surface and oil doesn't stick as easily, making it easier to shed during backwash. When treating oily wastewater, modified fiber balls regenerate noticeably better and last longer. Q3: What fill height is typical for fiber balls? A: Usually 1.0–1.5 meters, depending on the filter diameter and influent quality. Too high and head loss goes up; too low and there isn't enough dirt-holding capacity. When loading, make sure the media bed is even to avoid channeling. Over time, the fiber balls compact, so they need to be topped up or replaced periodically.