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A kind of preparation method of bovine wool protein sponge adsorption material for tannery dyeing waste liquid

A technology for adsorbing materials and dyeing waste liquid, applied in chemical instruments and methods, adsorption water/sewage treatment, animal processing waste water treatment, etc. Biodegradability, the effect of increasing active reactive sites

Active Publication Date: 2020-11-06
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the disposal of waste cow hair and the pollution of tanning and dyeing waste liquid, and realize the high value-added transformation of waste cow hair resources, the present invention provides a preparation method of bovine hair protein sponge adsorption material for tanning and dyeing waste liquid. The bovine hair keratin sponge produced by the method is light yellow in appearance, has the characteristics of light weight, large porosity, many surface active sites, and can be reused. It can be used as a special adsorption material for treating tanning dyeing waste liquid or other similar properties waste water

Method used

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  • A kind of preparation method of bovine wool protein sponge adsorption material for tannery dyeing waste liquid
  • A kind of preparation method of bovine wool protein sponge adsorption material for tannery dyeing waste liquid
  • A kind of preparation method of bovine wool protein sponge adsorption material for tannery dyeing waste liquid

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Effect test

Embodiment 1

[0032] (1) Sorting and removing impurities from cattle hair: Soak and wash cattle hair with 15 times of clean water for 6 hours, pick out the grass and sawdust floating on the surface and insoluble solid impurities such as gravel and meat pieces that sink to the bottom, and then drain the hair Dry. The cow hair that has been preliminarily removed is put into an ultrasonic cleaner, soaked and rinsed 3 times with 15 times the pretreatment solution containing 2% sodium bicarbonate and penetrant JFC, and at the same time supplemented by ultrasonic vibration, the ultrasonic frequency is 50KHz, The temperature is 25°C, 30 minutes each time, to remove soluble impurities such as grease and sulfide, the obtained wet cow hair is placed on a tray, spread evenly, and dried at 60°C for 8 hours.

[0033] (2) Ionic liquid pretreatment of cow hair: put the cow hair removed from step (1) into a three-necked flask, and blow nitrogen into it, then add 1-butyl-3-methylimidazole acetate 5 times th...

Embodiment 2

[0037] (1) Sorting and removing impurities from cattle hair: Soak and wash cattle hair with 17 times of clean water for 5.5 hours, pick out the grass and sawdust floating on the surface and insoluble solid impurities such as gravel and meat pieces at the bottom, and then drain the hair Dry. Put the cow hair that has been preliminarily removed into an ultrasonic cleaner, soak it with 20 times the pretreatment solution containing 1.5% sodium dodecylbenzenesulfonate, and rinse it for 3 times, and at the same time, it is supplemented by ultrasonic vibration, and the frequency of the ultrasonic wave is 40KHz , the temperature is 30°C, 30 minutes each time, to remove soluble impurities such as grease and sulfide, the obtained wet cow hair is placed in a tray, spread evenly, and dried at 70°C for 7 hours.

[0038] (2) Ionic liquid pretreatment of cow hair: put the cow hair removed from impurities in step (1) into a three-necked bottle, and blow nitrogen into it, then add 1-butyl-3-me...

Embodiment 3

[0042] (1) Sorting and removing impurities from cattle hair: Soak and wash cattle hair with 19 times of clean water for 5 hours, pick out the grass and sawdust floating on the surface and insoluble solid impurities such as gravel and meat pieces that sink to the bottom, and then drain the hair Dry. Put the cow hair that has been preliminarily removed into an ultrasonic cleaner, soak and rinse twice with 17 times the pretreatment solution containing 2.5% sodium oleate, and at the same time supplement it with ultrasonic vibration. The frequency of the ultrasonic wave is 30KHz and the temperature is 35°C. , 30 minutes each time, to remove soluble impurities such as grease and sulfide, place the obtained wet cow hair on a tray, spread it evenly, and dry it at 80°C for 5 hours.

[0043] (2) Ionic liquid pretreatment of cow hair: put the cow hair removed from impurities in step (1) into a three-necked bottle, and pass nitrogen gas, and then add 1-ethyl-3-methylimidazole acetic acid ...

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Abstract

The invention relates to a preparation method of a bovine hair protein sponge adsorbing material for tannery dyeing wastewater, comprising the steps of (1) sorting bovine hair, and cleaning; (2) subjecting bovine hair to ionic liquid pretreatment; (3) dissolving bovine hair, and extracting bovine hair protein; (4) preparing bovine protein sponge adsorbing material; (5) adsorbing dyeing wastewater.The bovine protein sponge adsorbing material prepared herein has the advantages of light weight, large porosity, high quantity of surface active loci, good recycling convenience, and good degrading easiness and may act a special adsorbing material for tannery dyeing wastewater.

Description

technical field [0001] The invention belongs to the technical field of utilization of biomass material resources and preparation of adsorption materials, and in particular relates to a method for preparing a bovine hair protein sponge adsorption material used for tanning dyeing waste liquid. Background technique [0002] The rapid development of my country's tanning industry also produces a large amount of solid and liquid waste, of which waste wool accounts for a certain proportion. In recent years, with the gradual implementation of the environmental protection process of tanning, the hair preservation and depilation method has replaced the traditional sulfide hair destruction and rot method, and has become an indispensable process in the production process of cow leather. According to statistics, every time the finished leather of 100kg is produced, the incidental waste product of more than double weight will be produced, and wherein waste wool just has about 40kg. If th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F103/24
CPCB01J20/24B01J20/28045C02F1/286C02F2103/24
Inventor 刘洁张斐斐李彦春刘张超
Owner QILU UNIV OF TECH
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