A preparation method and application method of biomass filtration and purification filter material

Abstract

The invention discloses a preparation method of a biomass filtering and purifying filter material and a use method thereof. The preparation method comprises the following steps of using crop straw and agricultural and forestry wastes as raw materials; crushing, screening, soaking, cleaning, whitening, loosening, rinsing, whitening, drying, and the like, so as to prepare the biomass filtering and purifying filter material. The biomass filtering and purifying filter material has the advantages that the biomass is whitened and loosened, so that multiple fine gaps in a biomass fiber structure are loose, impurities in a filtering matter are effectively contained, and the flowing drag on the filtering matter is reduced; the filtering property is good; by utilizing the particular physical structure, the corresponding additive is added to act on the filtering matter according to different function requirements of the filtering matter, so that the expected requirement and effect are reached; the biomass filtering and purifying filter material provided by the invention has the characteristics that the application range is wide; and is convenient to be processed into various filtering devices for purifying gas and liquid.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a method for preparing and using a filter material for filtering and purifying biomass. Background technique [0002] In the filtration operation, various porous materials used to intercept other filtered substances contained in the fluid and retain their impurities are called filter materials. Commonly used filter materials in industry are: ①Woven material, filter cloth and filter screen woven from natural or synthetic fibers, metal wires, etc., is the most commonly used filter medium in industrial production. This type of material is cheap, easy to clean and replace, and the minimum particle size that can be retained is 5-65 μm. Single-strand filter screens made of fibers such as polyamide, polyester, or polypropylene are uniform in texture, corrosion-resistant, and fatigue-resistant, and are gradually replacing other fabric filter cloths. But this kind of material c...

AI Technical Summary

Problems solved by technology

However, the function of the current filter material is relatively simple, the production process is relatively complicated and the production cost is relatively high, and the current filter material has relatively poor adsorption capacity, and the impurity in the filter material is generally filtered by blocking, so the filtration efficiency is relatively low

[0003] Patent CN103285664 A discloses a plant filter substrate, which uses plant stems, stems, and leaves, and is made through crushing, screening, degreasing, washing, softening, cleaning, puffing, and drying. rough, the NaHCO used 3 and H 2 o 2 The gas produced only has a certain expansion effect on the plant filter material, but due to the lack of whitening and rinsing processes, it is impossible to completely remove the debris remaining in the fiber structure

Therefore, the scope of use is limited and cannot be used in high-precision filtration industries such as food and medicine.

At the same time, the patent uses C 17 h 35 COOK, octadecyl dimethoxyamine and other chemical agents will cause the waste liquid and waste generated in the production process to cause adverse factors to the environment

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