Elastic filler is a kind of sewage treatment filler and is a biological carrier. It is regarded as biological filler in biological contact oxidation tank and hydrolysis acidification tank. There are many specifications of elastic fillers. What are the advantages of elastic fillers?
The use of filler is very wide, and it is a very important part of the sewage treatment process, providing a film platform for the entire sewage treatment process. In order to meet the needs of sewage treatment, the filler technology has been improving. From the first generation to the present, it can be roughly divided into four generations. According to this process, the hard filler is represented by honeycomb filler, the second generation of soft filler is represented by fiber filler, and the third generation of semi-soft filler is based on hard and soft The foundation of the packing is represented by the "snowflakes" packing. The fourth generation is the three-dimensional elastic packing to be introduced.
The use of elastic three-dimensional fillers can be divided into three categories:
1. YDT three-dimensional elastic packing production uses a central rope to tear and fix the packing inside to form a certain radiation pattern. The materials are generally selected from polyolefins and polyamides that are resistant to corrosion, temperature, and aging, and are mixed with additives (mainly hydrophilic, adsorption, and thermal oxygen resistant additives), and the filler wire is elastic , With ripples and micro burrs.
2. PWT elastic three-dimensional packing is also called three-dimensional network packing. Its formation is based on the packing sheet to form a network structure. The horizontal ribs and horizontal wires form a network shape, which is connected by vertical wires to form a solid structure. The parameters of the entire structure can be adjusted. .
3. TA elastic three-dimensional filler is a filler sheet instead of filler wire, and is connected by center and casing, which also forms a radial shape. The characteristic of its formation and production is that the number of gas fillers can be produced according to specific needs. Make adjustments. Similarly, the filler sheet is elastic and wave-like.
The comparative advantage of elastic three-dimensional filler
Because it is designed on the basis of the first three, the pores of the contrast and generation pores can be changed, and it is not easy to form the hard and often formed pore plugging. Compared with the second generation, it solves the stickiness caused by the material itself being soft and used for a long time. End, and affect water treatment problems. Compared with the third generation, the big feature is that the surface area is formed to increase the speed of sewage filming, and it saves the capital problem caused by the packaging treatment area. Elastic three-dimensional packing has the advantages of elastic three-dimensional packing, but elastic three-dimensional packing cannot replace the use of other fillers. The type of use needs to be judged according to the actual situation. This time, the elastic three-dimensional packing is used for thematic analysis.
Features of elastic three-dimensional packing
Analyzing the characteristics requires analyzing the specific situation. The use performance of the three-dimensional elastic filler is based on the filler processing method. The materials used are characterized by two main parameters: 1. surface area and 2. pores.
Due to the special technology used in the drawing process of the elastic filler, the surface of the elastic thread is drawn into corrugations and burrs, thereby increasing its specific surface area and the performance that is beneficial to the adhesion of microorganisms. The thread strips are arranged in a spiral and radial shape with the central rope as the axis. Fully stretched in the water, so the three-dimensional distribution is uniform.