Fiber bundle with polymer fibre bundle as filter materials, monofilament can reach dozens of micron to a few microns in diameter, belongs to micron grade filter material (sand filter belong to the millimeter level), has the huge specific surface area, the interception of the particles in the water and adsorption ability has greatly improved. Close to 100%, the removal efficiency of suspended solids in water with good coagulation treatment of water, suspended solids content of 20 mg/L, remove suspended solids water can reach below 1 mg/L. The macromolecular organic matter, colloid, bacteria, viruses, can obviously remove impurities such as iron. Size greater than 5 um suspended solids removal rate up to 90-95%. , solve the granular filter material of filtering precision filter material particle size restrictions. Is quartz sand filtration equipment particles, such as the upgrading of products. Mechanical adjusting device according to the requirements of water quality and filtration speed, quickly adjust the packing density of bunchy filter material. The factory production of efficient fiber bundle of lightweight, high strength, good elasticity, wear resistance, corrosion resistance, non-absorbent. Many advantages in the process of water treatment. (1) chemical stability is strong, the filter without harmful ingredients in the process of dissolution; 2 against gas water xian high strength friction and collision, shear force won't run material damage and loss; (3) years soaking in the water durability, service life can reach 5 ~ 10 years; (4) filtering less resistance, filter speed is fast, from 25 to 35 m/h speed range can ensure good filtering effect. (5) fiber bundle filter filter automatically formed along the flow direction of the filter bed porosity decreases stepless variable void filter layer, without like particle filter material for artificial gradation (6) filter layer in order: hanging in the fiber bundle filter filter or filter, impact resistance, not disorderly, don't loss, can withstand the high intensity of cleaning, including large flow rate of the joint between gas and water to clean. (7) sewage capacity is big, generally for 5 ~ 15 kg/m3, the filter material is 2 ~ 3 times of the traditional filter. (8) cover an area of an area small, make the same water, covers an area of a conventional filter 1/3 ~ 1/8. (9) tons of water, low cost, making the same water, cost less than traditional filters. (10) backwashing water consumption is low, the periodic output amount of fabricated water from only 1 ~ 3%, generally available raw water backwashing.