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Method for realizing comprehensive utilization and high added value conversion of livestock and poultry fur

A high value-added, fur technology, applied in the preparation method of peptides, chemical instruments and methods, applications, etc., can solve problems such as difficult to use waste water, waste residue, low utilization rate of fur resources, dim leather market prospects, etc., and achieve improvement The effect of product added value and high value added utilization

Inactive Publication Date: 2017-05-31
QINGHAI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, domestic fur resources are mainly used to prepare leather, but with the increasingly prominent environmental problems in recent years, the leather market prospect is bleak, the utilization rate of fur resources is not high, and a large amount of waste water that is difficult to use will be produced , waste residue; therefore, the development of high value-added fur products and the zero-emission utilization of resources are the key to fur development research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for comprehensive utilization and high value-added transformation of livestock and poultry fur: (1) depilating hairy pigskin by shearing to obtain skin boards and hair dregs;

[0019] (2) Extract collagen from the depilated pigskin skin board by pyrolysis method, put 10kg skin board in the reaction kettle, add 2% soda ash and 200% water of the weight of the skin board, heat to 35°C, Stir at a speed of 200r / s for 2 hours, wash with water for 4 times, and collect the waste liquid at the same time; after cleaning, add water 20 times the weight of the leather plate, raise the temperature to 80°C, stir at a speed of 200r / h for 20 hours, and filter with gauze to obtain Water extraction product and filter residue; Concentrate the water extraction product with a rotary evaporator, dry and pulverize under vacuum to obtain collagen; collect all waste water residues and slag in the process, adjust the pH of the mixture to 7.4, and obtain waste water , waste residue.

[0...

Embodiment 2

[0022] A method for comprehensive utilization and high value-added transformation of livestock and poultry fur: (1) dehairing donkey hides with enzyme treatment. Put it into a blender, add water twice the weight of the donkey skin and 1% softening enzyme, stir at room temperature for 6 hours to obtain a skin plate and hydrated slag;

[0023] (2) Extract collagen from the depilated donkey skin by acid hydrolysis. Put 10kg skin board into the reaction kettle, add water 15 times the weight of the skin board and 3kg lactic acid, stir at 20°C at a speed of 150r / min for 72h and then filter to obtain the filtrate and filter residue, use a rotary evaporator to concentrate the filtrate and freeze Collagen is obtained after drying; waste water and waste residues and water-containing residues in all processes are collected, and the pH of the mixture is adjusted to 7.4 to obtain waste water and waste residues. Adjust the pH of the extracted waste liquid and waste residue mixture to 6.3 t...

Embodiment 3

[0026] A method for comprehensive utilization and high value-added transformation of livestock and poultry fur: (1) depilating wooly sheep skin by plucking it to obtain skin boards and hair dregs;

[0027] (2) Collagen was extracted from the depilated sheep skin panel by enzymatic hydrolysis. Clean the leather board and cut it into 3mm×3mm pieces, pour 20kg into the reaction kettle, soak and degrease with ethylene glycol monobutyl ether twice the weight of the leather board, wash it with water three times after 15 hours, according to the weight 1:15 Add acetic acid solution with a pH of 2.2 in double ratio, soak at 4°C for 10 hours, break it into a paste, continue to add 15 times of acetic acid solution, and add 1% pepsin, soak for 13 hours (stirring for 1 minute every hour), and then use Suction filtration with gauze, take the filtrate and salt out to obtain collagen. Waste water, waste residue and slag in all processes are collected, and the pH of the mixture is adjusted to...

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Abstract

The invention provides a method for realizing comprehensive utilization and high added value conversion of livestock and poultry fur and relates to the field of biological energy sources. The method comprises the following steps: separating leather and hairs; carrying out high added value resource utilization of a leather board; carrying out comprehensive utilization of fur waste residues and wastewater. The method has the beneficial effects that the livestock and poultry fur is used as a raw material; after the hairs are removed, the leather board is separated from under fur; the leather board is used for extracting collagen and a byproduct which is obtained in an extracting process and the under fur are mixed and composted with agricultural plant wastes, industrially produced saw dust, livestock excrement, kitchen waste, food waste, domestic garbage and the like according to a certain ratio to prepare organic compost; on one hand, the product added value of the leather board of the fur is improved; on the other hand, other byproducts can be subjected to resource utilization; zero-pollution emission is realized in a resource conversion process; the leather-hair separation is carried out so that the aims of the high added value utilization of a leather board product, and zero-pollution emission and the comprehensive utilization of the byproduct and the fur residue are realized.

Description

[0001] 1. Technical field [0002] The invention relates to the field of biological energy, in particular to a method for comprehensive utilization and high value-added conversion of livestock and poultry fur. [0003] 2. Background technology [0004] At present, domestic fur resources are mainly used to prepare leather, but with the increasingly prominent environmental problems in recent years, the leather market prospect is bleak, the utilization rate of fur resources is not high, and a large amount of waste water that is difficult to use will be produced , waste residue; therefore, the development of high value-added fur products and the zero-emission utilization of resources are the key to fur development research. [0005] 3. Contents of the invention [0006] Aiming at the above-mentioned technical problems, the present invention provides a method for comprehensive utilization and high value-added conversion of livestock and poultry fur, a method for high-value-added co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F17/00C07K14/78C07K1/12C07K1/14C12P21/06
CPCC05B1/02C05C3/00C05D1/02C05F17/00C05G3/00C07K14/78C05D9/00C05F1/005C05F3/00C05F5/00C05F7/00C05F9/00C05F11/00C05F11/08C05F11/02Y02W30/40
Inventor 陈渭王维恩
Owner QINGHAI NORMAL UNIV
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