Elastic three-dimensional fillers have been selected from several high-quality varieties of polyolefin and polyamide that are resistant to corrosion, temperature, and aging. They are mixed with hydrophilic, adsorption, and heat-resistant oxygen additives, and special drawing and wire making processes are used to interweave and fix the wire strips on a corrosion-resistant and high-strength central rope. Due to the excellent selection of materials and process formulas, moderate rigidity and flexibility, the wire strips are arranged in a three-dimensional uniform radiation state, and the monomers of suspended three-dimensional elastic fillers are made. The fillers can be uniformly stretched and distributed in all directions in the effective area, allowing air, water, and biofilm to be fully mixed and exchanged. The biofilm can not only be uniformly implanted on each wire strip, maintaining good activity and pore variability, but also... During operation, it obtains an increasingly larger specific surface area and can also undergo good metabolism, This feature and phenomenon are incomparable to other fillers currently available in China.
