Fiber ball filter material is made of polyester, polypropylene or acrylic silk spherical filter material, with good elastic effect, the use of high aldehyde vinet, shaped polyester silk as raw material, not on the surface, large gap, long working cycle, small head loss and other advantages.
With a large number of biological groups attached to its own surface and oxygenation, repeated contact with sewage, so that the suspended solids and organic matter in the wastewater are degraded to achieve the purpose of treatment, widely used in various water treatment industries, the density is 1.38g/cm.
Due to the increase in the amount of urban sewage in China, China has to implement stricter sewage tailwater discharge standards. However, the external treatment process of China' s sewage external treatment plant still stays in the secondary biochemical external treatment of sewage, and in the future, or the local government is unlikely to require the sewage plant to add activated carbon, ozone oxidation, reverse osmosis and other advanced treatment processes.
In response to increasingly stringent emission standards, secondary biological treatment is powerless, which should be the common understanding of everyone in the industry. The operating data showed that when the fiber ball filtered the effluent of the second sedimentation tank, the concentration of suspended particles dropped from about 10-20mg/L to less than 2mg/L, and the SS removal rate was close to 90%; The COD concentration dropped from about 70-80mg/L to about 40mg/L, and the COD removal rate was close to 50%.
Fiber ball filtration can not only significantly improve the quality of tailwater, but also meet today's development trends; And it can be filtered at high speed, the filtration speed can reach 20-40m/h, and the filtration cycle reaches 10-20h, that is, it can be stably used for sewage filtration, and there is no need to backwash frequently.