Perspective the mesh fill a filler in the field of wastewater treatment technology mainly used in specific spatial mesh packing. New spatial mesh packing body by the plurality bending interleaved winding, mutual bonding of the filaments formed by the density and orderly dimensional columnar structure, the side surface of the filler as bamboo-shaped, its cross-sectional view of the grid-like , of the middle of the grid holes in some of the channels corresponding to the vertical grid junctions has to strengthen a thick wire bar. The dimensional mesh filler sewage, air and biofilm can be fully mixed penetrates the contact exchange biofilm heavily uniform yarn sit dimensional mesh filler bed, to maintain the activity and pore variability, and during operation of the gas in the effluent driven by the three-dimensional flow, bumped by a spiral network constantly into smaller bubbles to increase the utilization of oxygen, can reduce the amount of aeration, while allowing the biofilm good metabolism, and not sticky link group, so it has a bubble cutting ability, the volume of the space utilization, no dead zone, the current sewage treatment performance indicators filler. 1, the filler material is PP, high temperature resistance, corrosion resistance. 2, the overall structure, porosity, specific surface area. 3, microbial biofilm is fast, easy to fall off. 4, the three-dimensional water flow is not blocked, do not agglomerate. 5, lightweight Ren Jian, long-term use is not deformed. 6, used as a cooling tower fill, the effect of heat exchange, water distribution uniformity. Edit this paragraph the advantages of three-dimensional network structure, porosity, the practical large specific surface area, the water was three-dimensional flow, mass transfer conditions, oxygen utilization, is not blocked, do not agglomerate, long service life. Three-dimensional mesh packing is mainly used for domestic sewage, urban sewage treatment works of biofilm cooling tower heat exchange process can also be used, but also as infiltration drainage geotextile material, inexpensive, easy to install and long life advantages.