Functional material for wastewater denitrification filler and preparation method thereof

Abstract

The invention relates to a functional material for wastewater denitrification filler, which comprises the following elements in percentage by weight: 40 to 60 percent of carbon element, 3 to 15 percent of hydrogen element, 20 to 45 percent of oxygen element, and 4 to 20 percent of nitrogen element. A preparation method for the functional material for the wastewater denitrification filler comprises the following steps of: dissolving a monomer, an initiator, a chain transfer agent and a potential cross-linker or a cross-linker polymerized into resin by using a solvent, putting the solution intoa reaction kettle, and stirring the solution to perform polymerization reaction to prepare spinning stock solution; pressing the spinning stock solution into a coagulating bath through a spinning head so that the spinning stock solution is coagulated into filament bundles; and treating the filament bundles in a stretching bath and then in an acid washing bath, performing acid washing, and then cleaning in a washing bath to obtain the functional material for the wastewater denitrification filler. The functional material for the wastewater denitrification filler has chemical homology with denitrification microbes, and is easy to grow on the surface together with the microbes. Meanwhile, the surface of the functional material for the wastewater denitrification filler carries hydrophilic groups, so the functional material has good hydrophilic property.

Description

technical field [0001] The invention relates to a functional material used for waste water denitrification filler and a preparation method thereof. Background technique [0002] Water is a precious resource for human survival. With the rapid development of the economy, due to the widespread use of synthetic detergents, chemical fertilizers and pesticides, a large number of complex pollutants will enter the water body, and the discharge of nitrogen will increase sharply. Nitrogen pollution in water bodies has caused great harm to the living environment of human beings. The ecological environment of water bodies is deteriorating day by day, nitrogen and phosphorus pollution is especially common, and eutrophication is extremely serious. Cause huge direct and indirect economic losses. Therefore, the research work on the restoration of polluted water bodies is imminent. [0003] Filler is one of the core technologies of biofilm wastewater treatment in wastewater treatment. Wit...

AI Technical Summary

Problems solved by technology

[0004]At present, domestic soft fillers have disadvantages such as difficulty in microbial attachment, small actual surface area, and easy breakage of the central rope, so the application is limited, and there is still no special soft filler for nitrogen removal. sex filler