Feather non-woven composite needled filter material for treating high-content sludge and preparation method thereof

Abstract

The invention discloses a feather non-woven composite needled filter material for treating high-content sludge. The feather non-woven composite needled filter material comprises, by weight, 50-70 parts of feather fibers, 20-30 parts of polyester fibers, 24-35 parts of methacrylate, 2-6 parts of potassium peroxodisulfate, 3-6 parts of sodium hydrogen sulfite, 2-7 parts of 2% hydroquinone solution, an appropriate amount of deionized water, an appropriate amount of ethanol, an appropriate amount of acetic acid buffer solution, 2-4 parts of KH-570, 14-25 parts of hydroxyapatite powder, 0.5-1 part of N,N'-methylene bisacrylamide, 0.5-1 part of emulsifier, 0.8-2 parts of photoinitiator TPO, 2-7 parts of graphene oxide, 1-4 parts of chitosan, 0.5-1 part of glycidyl trimethyl ammonium chloride and an appropriate amount of 40% sodium hydroxide solution. The feather non-woven composite needled filter material has the advantages that the feather fibers are modified by methacrylate grafting, the hydroxyapatite is loaded onto the modified feather fibers by utilizing ultraviolet grafting, and the absorption performance, on heavy metal ions in wastewater, of the filter material is increased.

Description

technical field [0001] The invention belongs to the technical field of non-woven filter material manufacture, and in particular relates to a feather non-woven composite needle-punched filter material used for high sludge treatment and a preparation method thereof. Background technique [0002] With the development of industry, the urban surface water pollution in our country is generally serious, and it is showing a trend of further deterioration. At the same time, due to the very limited fresh water resources in our country, the water supply for production and living is becoming increasingly tense, and the sewage problem needs to be solved urgently. In the reclaimed water treatment process, the coagulation method has the advantages of less land occupation and no secondary pollution than the biological method, and has been widely used. However, the flow rate required for filtration is large, the head loss is large, the filter needs to be washed frequently, the energy consump...

AI Technical Summary

Problems solved by technology

However, the untreated feathers used directly in this article have poor thermal stability, and the temperature difference with the softening point of the mixed low-melting-point hot-melt fibers is small, and the feather fibers are prone to decomposition during hot-melt solidification, which weakens its adsorption performance. , as a filter material, its filtering effect is not ideal