Product Overview
Hydrophilic polyurethane biofiller is a new type of biofiller synthesized from high polymer materials. It combines large pores and micropores in polyurethane fillers, with large pores maintaining good contact conditions for gas, liquid, and solid, and micropores used for immobilizing microorganisms. These micropores contain hydrophilic active groups such as amines, carboxyls, and epoxides, which can form ionic or covalent bonds with certain active groups in the microbial peptide chains, thereby immobilizing microorganisms and biological enzymes on the carrier. After immobilization, the biofiller's density is close to that of water, with high microbial load, high volumetric load, and a large specific surface area. Due to its structural characteristics, polyurethane fillers can facilitate mixing and contact exchange of wastewater, air, and biofilms. Biofilms not only can settle in large quantities within the microbial carriers while maintaining good activity and porosity variability but also, during operation, gases are continuously sheared into smaller bubbles by the蠕动状态的 microbial fillers driven by the three-dimensional flow of wastewater, increasing oxygen utilization and potentially reducing aeration requirements. Thus, it boasts strong bubble-cutting capabilities, high space volume utilization, and no dead zones, making it a cutting-edge product in the update and replacement of biofillers.
Product Features
1) Polyurethane filler has a large specific surface area, allowing microbial populations to thrive on its surface, forming a highly active biofilm. This prevents the loss of slow-reproducing, low-yield microbial populations, such as nitrifying bacteria.
2) Enhance the efficiency of the biochemical system and the stability of the biochemical pond.
3) Reduce the toxic effects of non-biodegradable substances and toxic substances on microbial populations.
4) Enhanced system tolerance to load, toxic inhibitory substance shocks, and changes in pH and temperature. Reduced the generation of residual sludge.
5) Achieve simultaneous nitrification and denitrification.
Application Scope
This packing is suitable for various types of structures used in submerged biological trickling filters for contact oxidation, as well as for general biological towers with sprinkling water systems, effectively distributing air and water uniformly. The packing exhibits unique effects in the biological treatment of various organic chemical wastewater and domestic sewage, urban wastewater, as well as in micro-pollution pretreatment and denitrification technologies. It is applicable to wastewater treatment projects involving nitrogen and phosphorus removal in high-concentration organic wastewater, various industrial wastewater, oil refining wastewater, daily chemical wastewater, pharmaceutical wastewater, biological trickling towers, desulfurization, deodorization, and urban domestic wastewater.
