● Product Overview
Hydrophilic polyurethane biomaterial filler is a new type of biomaterial synthesized from polymer materials. Macropores and micropores are combined in polyurethane fillers, and the macropores maintain good gas liquid solid contact conditions. The micropores are used to immobilize microorganisms, and contain hydrophilic active groups such as amino, carboxyl, and epoxy groups. They can form ionic or covalent bonds with certain active groups in microbial peptide chains to immobilize microorganisms and biological enzymes on the carrier. The density of the filler after immobilizing microorganisms is close to that of water, with a large microbial load, volumetric load, and specific surface area. Due to its structural characteristics, polyurethane fillers can facilitate the mixing, contact, and exchange of sewage, air, and biofilm. Biofilms can not only sit on a large number of microbial carriers, maintaining good activity and pore variability, but also during operation, gases collide with each other under the three-dimensional flow of sewage and are continuously cut into smaller bubbles by the wriggling microbial fillers, increasing oxygen utilization efficiency and reducing aeration. Therefore, it has the characteristics of strong ability to cut bubbles, high utilization rate of space volume, and no dead zone, making it an updated product of current biological fillers.

● Product features
1) The specific surface area of polyurethane fillers is large, and microbial communities can reproduce and grow on their surfaces, forming highly active biofilms and avoiding the loss of microbial communities with slow reproduction rates and low yields, such as nitrifying bacteria;
2) Improve the processing efficiency of the biochemical system and the stability of the biochemical pool;
3) Reduce the toxic effects of recalcitrant and toxic substances on microbial communities;
4) Enhanced the system's tolerance to changes in load, toxic inhibitory substances, pH, and temperature. Reduce the generation of excess sludge;
5) Realize synchronous nitrification and denitrification.
● Product parameters

● Application scope
This filler is suitable for various types of structures in contact oxidation submerged biological filters, as well as for drip water type general biological tower filters, to achieve its function of evenly distributing airflow and water flow. This filler has different effects from other fillers in the biological treatment of various organic chemical wastewater, domestic sewage, urban sewage, as well as in micro pollution pretreatment and denitrification technology. Suitable for wastewater treatment projects such as high concentration organic wastewater, various industrial wastewater, refinery wastewater, daily chemical wastewater, pharmaceutical wastewater, biological filtration towers, sulfur removal, deodorization, and nitrogen and phosphorus removal of urban domestic sewage.