Sewage treatment use titanium dioxide/feather no-weaving composite needling filtration material and preparing method thereof

Abstract

The invention discloses a sewage treatment use titanium dioxide / feather no-weaving composite needling filtration material. The material is prepared from, by weight, 50-70 parts of feather fiber, 20-30 parts of polyester fiber, 24-30 parts of metacrylic acid ester, 2-5 parts of potassium persulfate, 3-6 parts of sodium hydrogen sulfite, 3-7 parts of 2% of hydroquinone solution, a proper amount of deionized water, a proper amount of ethyl alcohol, a proper amount of acetic acid buffer solution, 3-5 parts of KH-570, 15-25 parts of hydroxyapatite powder, 0.5-1 part of N, N'-methylene bisacrylamide, 0.5-1 part of emulgator, 1-2 parts of photoinitiator TPO, 7-12 parts of butyl titanate, 2-5 parts of glacial acetic acid and 1-4 parts of concentrated nitric acid. According to the sewage treatment use titanium dioxide / feather no-weaving composite needling filtration material, metacrylic acid ester is applied to graft the modified feather fiber, heat stability and tensile property of the no-weaving material are improved, besides, ultraviolet light is utilized to graft and load hydroxyapatite on the feather fiber after modification treatment, and adsorption to heavy metal ions in sewage of the filtration material is improved.

Description

technical field [0001] The invention belongs to the technical field of manufacturing non-woven filter materials, and in particular relates to a titanium dioxide / feather non-woven composite needle-punched filter material for sewage 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 ener...

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