Polyurethane Foam Filler

Polyurethane bio-fillers are suitable for wastewater treatment projects such as high-concentration organic wastewater, various industrial wastewater, refining wastewater, daily chemical wastewater, pharmaceutical wastewater, and municipal domestic sewage. The polyurethane sponge produced by our company's special process is used as the carrier of all-around culture bacteria. Because of the special porous network structure of the biological carrier, the specific surface area of the biological culture carrier is greatly improved. the breakthrough point is to realize nitrosation reaction on the outer surface of a single biological carrier in the aeration tank and denitrification of nitrite in the interior, in which there are not only simple physical adsorption but also positive and negative charges of gravity. So that the carrier surfaces certain cationic active groups and hydrophilic groups such as hydroxyl groups, and sewage with the negative charge of microorganisms to produce bonds, valence fixed binding so that microorganisms and biological enzymes are firmly fixed on the carrier.

The characteristics of polyurethane biological filler are low price, convenient installation, long service life, load resistance, no blockage, good hydrophilicity, high biological activity, large specific surface area, easy to grow and easy to fall of biofilm, and good treatment effect.