Combined packing
KQ type composite packing is composed of packing body of high molecular polymer and aldehyde fiber filament, and is fixedly connected with fiber rope (or nylon rope). Compared with soft fillers, KQ type composite fillers not only keep large specific surface area of soft fillers, variable pores and non clogging, but also have a wide range of wastewater concentration and impact load resistance, and avoid anaerobic agglomeration of soft fillers in long-term use. Compared with the semi soft packing, it overcomes the disadvantages of the semi soft packing, such as small and smooth specific surface area, difficult to hang up biofilm, difficult operation and management, etc. Compared with hard packing and suspended packing, it has the advantages of low price, good treatment effect, convenient transportation, simple installation and long service life.