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Preparation method of composite fiber felt for water treatment

A composite fiber mat and water treatment technology, applied in fiber treatment, plant fiber, biochemical fiber treatment, etc., can solve the problems of low mechanical performance, poor selectivity, limited use effect, operation stability and service life, etc., to achieve improvement and stability performance, good use effect, improved adsorption selectivity and mechanical properties

Inactive Publication Date: 2018-11-20
WUHU CHUANGYUAN NEW MATERIALS CO LTD
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AI Technical Summary

Problems solved by technology

However, natural fibers have disadvantages such as easy degradation, low mechanical properties, and poor selectivity, which limit their use effects, operational stability, and service life.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0018] A preparation method of composite fiber felt for water treatment, comprising the following steps:

[0019] (1) After degumming, carding and opening, the hemp fiber is formed into a web with an air-laid machine, and then needled on both sides of the upper and lower sides of the acupuncture machine, and the hemp fiber mat is obtained after cutting;

[0020] (2) First soak the hemp fiber mat obtained in step (1) in an acetic acid solution equivalent to 10 times the weight of the hemp fiber mat for 2 hours, then wash it with deionized water until neutral, and then soak it in an acetic acid solution equivalent to 10 times the weight of the hemp fiber mat. times the cellulase solution for 1 h, washed with deionized water and dried completely to obtain a modified hemp fiber mat;

[0021] (3) Add the modified hemp fiber mat obtained in step (2) into a bionic mineralization solution equivalent to 10 times the weight of the modified hemp fiber mat, soak it at 36°C for 3 days, tak...

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Abstract

The invention discloses a preparation method of a composite fiber felt for water treatment. The method comprises the following steps: first, hemp fiber is degummed, carded and opened; web formation isperformed by using an air-laid machine; needling and slitting are performed to obtain hemp fiber felt; modification is performed on the hemp fiber felt through a combination of acid soaking treatmentof an acetic acid solution and enzymolysis treatment of a cellulase solution; finally, socking treatment is performed by using a biomimetic mineralization solution, and the composite fiber felt for water treatment is obtained after drying. The composite fiber felt for water treatment prepared according to the invention is not liable to degrade in water, has large adsorption capacity, high adsorption selectivity, a good use effect and running stability, and a long service life.

Description

technical field [0001] The invention relates to the technical field of water treatment materials, in particular to a preparation method of a composite fiber felt for water treatment. Background technique [0002] Fiber mat material is a new type of filter material. Due to the entanglement among the fibers, the unique three-dimensional network structure and many evenly distributed tiny voids, and the large specific surface area of ​​the fibers, it can be intercepted, inertial deposited, Gravity sedimentation and other different mechanisms are used for filtration, with low filtration resistance, high filtration efficiency and low cost, so it is widely used in the field of environmental protection water treatment. At present, the usual fiber mats for water treatment are made of polypropylene and other polymer materials through melt blowing and other methods. Although these polymer materials are relatively stable in performance, they have poor hydrophilicity and are not effectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/188D06M16/00D06M11/155D06M11/71D06M101/06
CPCD06M11/155D06M11/71D06M13/188D06M16/003D06M2101/06
Inventor 高恒东胡佳佳
Owner WUHU CHUANGYUAN NEW MATERIALS CO LTD
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