Fiber ball filler most notable feature is the asymmetrical structure and fractal structure, developed as the core of this material type filter, type filter tank, to solve the high-speed, high-precision filter, and the unification of the three pollutant carrying capacity, with wide, variable speed, adaptive and efficient features, filtering accuracy greater than micron filtration rate recommended Damien hours, the remaining plot is less than mud, dirt holding capacity filter bed reaches kg, compared with the traditional sand filters, volume reduction, backwashing consumption reduced water pictures selected from modified multi Guy fiber filter is in general fiber filter based on the improvement of the new media, ordinary polyester fiber bundles can only be used in sewage treatment, oil-modified fiber bundle which is used with modified fiber ball of the same material, the material itself has a hydrophilic oleophobic, so can be used for oily wastewater treatment. Both fiber bundles Buildup of the surface using their large number of biological groups and oxygenation, with repeated exposure to water, so that is not easy to remove small suspended sediment retention and organic matter degradation to achieve the purpose of purification. Fiber ball filler main features are as follows: 1) high filtration rate. DUOJIA brand fiber ball filtration rate of up to 40m / h, while the sand filter filtration rate is only 8 ~ 10 m / h. 2) water quality is good. When the filtration rate of 20 ~ 40 m / h, the domestic fiber ball can be sedimentation tank effluent suspended solids from the <20mg / l down to 1.4 ~ 3mg / l, removal rate of about 85%, Japanese ball effluent suspended solids in the 3.2 to 3.4 mg / l or so. Domestic fiber ball filter contact oxidation pond effluent, suspended solids from the 20 ~ 80mg / l down to ≤ 5mg / l. 3) interception volume. Sedimentation tank effluent filtration, fiber ball filter layer interception capacity of 3 ~ 4.7kg/m2, quartz sand filter layer is 1.6 to 2.4 times; filter contact oxidation pond effluent, sewage capacity of 4.5 ~ 9.4 kg/m2. 4) large water production cycle. Sedimentation tank effluent filtration, the fiber ball filter cycle production of water, 360 ~ 700m3/m2, sand filtration is 3.6 to 7 times. 5) less backwash water, accounting for about 2% of water filtration, while the sand filter backwash water accounts for about 5% of water filtration.