Functional material for removing nitrogen from wastewater and method of preparing same

Abstract

The invention discloses functional material for removing nitrogen from wastewater and a method of preparing the same. The functional material comprises hydrophilic resin and inorganic nano-powder which is adhered to the hydrophilic resin. The functional material is prepared by first synthesizing the hydrophilic resin, and then adding and stirring the inorganic nano-powder to the hydrophilic resin.The inorganic nano-powder accounts for 5-20 percent of the total functional material by weight. The surface of the hydrophilic resin is provided with hydrophilic groups so that the microorganisms canbe adsorbed on the surface of the functional material easily and can not fall off from the surface of the functional material, and the nitrogen removing ability of the microorganisms can be kept fora long time. Because the functional material comprises the inorganic nano-powder which can increase the roughness of the surface of the functional material, the microorganisms can be steadily adsorbedon the surface of the functional material, and because the inorganic nano-powder is adhered to the hydrophilic resin, the gaps formed in the functional material is small, and accordingly the change of the stress of the functional material is slowed down when the functional material is impacted by the water flow and the breaking strength of the functional material is improved.

Description

technical field [0001] The invention relates to a functional material for denitrification of wastewater, and also relates to a preparation method of the functional material. Background technique [0002] my country's water resources are relatively poor, and the per capita amount of water is only 25% of the world's per capita amount. However, the pollution of water resources is becoming more and more serious. According to a survey conducted by my country's environmental monitoring department, the type of water pollution in rivers across the country is eutrophication, and the main nutritional pollutants are ammonia nitrogen and total nitrogen. In sewage treatment, microorganisms are generally used for denitrification treatment. The functional materials used in fillers are used as the carrier of microorganisms. Their materials and manufacturing processes have a direct impact on the efficiency, energy consumption, stability and reliability of the wastewater treatment process. The...

AI Technical Summary

Problems solved by technology

According to a survey conducted by my country's environmental monitoring department, the type of water pollution in rivers across the country is eutrophication, and the main nutritional pollutants are ammonia nitrogen and total nitrogen. In sewage treatment, microorganisms are generally used for denitrification treatment. The functional materials used in fillers are used as the carrier of microorganisms. Their materials and manufacturing processes have a direct impact on the efficiency, energy consumption, stability and reliability of the wastewater treatment process. The existing There are many functional materials, such as polyvinyl alcohol, polypropylene, etc., but they have the disadvantages of poor hydrophilicity, difficulty in microbial attachment, poor denitrification ability, and low strength and easy fracture.