Microbial carrier filling material made of glass fiber reinforced polycarbonate thermoplastic resin composite

Abstract

The invention relates to a microbial carrier filling material made of a glass fiber reinforced polycarbonate thermoplastic resin composite. The microbial carrier filling material is made of the glass fiber reinforced polycarbonate thermoplastic resin composite, and the glass fiber reinforced polycarbonate thermoplastic resin composite is prepared from glass fiber and polycarbonate thermoplastic resin by compounding and pelleting through a double-screw extruder; then the prepared glass fiber reinforced polycarbonate thermoplastic resin composite is subjected to injection molding through an injection molding machine to prepare the microbial carrier filling material. The glass fiber and polycarbonate thermoplastic resin are subjected to surface modification treatment before compounding, so as to prepare the microbial carrier filling material which is good in abrasion resistance and ageing resistance, high in impact strength, strong in toughness, large in specific surface area and good in biofilm colonization.

Description

technical field [0001] The invention relates to a microbial carrier filler made of glass fiber reinforced polycarbonate composite material, which belongs to the field of water treatment. Background technique [0002] The rapid development of industrialization in my country, the continuous expansion of urbanization scale and the lag of sewage and wastewater treatment have led to the gradual deterioration of the water quality of source water, and the degree of pollution of source water has become more and more serious, especially the increase of dissolved organic matter, NH 4 + The problem of excessively high concentration of -N is particularly prominent. The increase of dissolved organic matter will produce a large number of teratogenic, carcinogenic and mutagenic disinfection by-products in the subsequent chlorine disinfection process. The presence of ammonia nitrogen will cause eutrophication of water bodies. However, the existing conventional water treatment coagulation...

AI Technical Summary

Problems solved by technology

The filler is one of the cores of the biofilm pretreatment process, and its material and surface properties will directly affect the attachment and growth of microorganisms, thereby affecting the treatment effect of wastewater.

Currently, the common polyvinyl chloride biofillers on the market have poor hydrophilicity and bio-affinity, resulting in insufficient film-hanging speed, film-hanging amount, and tightness between the film and the filler. Water and biological affinity modification, activated carbon and magnetic modification are expected to improve the mass transfer, film formation and water treatment performance of the packing

In addition, the impact strength of PVC is only 3-5kJ / m 2 , has the disadvantages of low impact strength and poor thermal stability, which lead to the aging of the filler and the short service life

[0004] At the same time, most of the fillers have low strength, soft materials, smooth surfaces, and float in water. Even under the action of external forces, they cannot form a full range of "fluidization" states, that is, they cannot completely react with the water in the pool.