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Preparation method of organic fertilizer based on waste animal hair

A technology of organic fertilizer and animal hair, which is applied in the field of resource utilization of waste biomass, can solve the problems of failing to meet the requirements and inability to achieve resource utilization, and achieve the effect of expanding the scope

Inactive Publication Date: 2020-04-17
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, these methods have not met the requirements due to various reasons, and cannot achieve the purpose of resource utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1) Degeneration of waste animal hair

[0040] Get 100 parts of discarded animal hair and place it in a reaction kettle with a capacity of 1.0T, then add 800 parts of water, and heat to 70 ° C, then add 40 parts of hydrogen peroxide, 20 parts of urea, and react for 60 minutes;

[0041] 2) Hydrolysis

[0042] The reactor containing the denatured waste animal hair was heated to 70° C., then 10 parts of sodium hydroxide were added, and the reaction was carried out for 60 minutes. Then add 10 parts of sodium bisulfite, react for 60 minutes, finally adjust its pH to 6 with 20 parts of acetic acid, filter;

[0043] 3) Concentrate

[0044] Take 1000 parts of the hydrolysis filtrate, and use an external circulation vacuum concentrator to concentrate it to a concentration of 60% by using an external heating type natural circulation type and a negative pressure evaporation method;

[0045] 4) Biological fermentation

[0046]Take 1000 parts of the concentrated solution and heat...

Embodiment 2

[0050] 1) Degeneration of waste animal hair

[0051] Take 100 parts of discarded animal hair and place it in a reaction kettle with a capacity of 1.0T, then add 1000 parts of water, and heat to 80°C, then add 60 parts of hydrogen peroxide and 30 parts of urea, and react for 90 minutes;

[0052] 4) Hydrolysis

[0053] The reactor containing the denatured waste animal hair was heated to 80° C., then 20 parts of sodium hydroxide was added, and the reaction was carried out for 90 minutes. Then add 20 parts of sodium bisulfite, react for 90 minutes, finally adjust its pH to 7 with 30 parts of acetic acid, filter;

[0054] 3) Concentrate

[0055] Take 1000 parts of the hydrolysis filtrate, use an external circulation vacuum concentrator to concentrate it to a concentration of 80% by using an external heating type natural circulation type and a negative pressure evaporation method;

[0056] 4) Biological fermentation

[0057] Take 1000 parts of the concentrated solution and heat ...

Embodiment 3

[0061] 1) Degeneration of waste animal hair

[0062] Get 100 parts of discarded animal hair and place it in a reactor with a capacity of 1.0T, then add 900 parts of water, and be heated to 75 ° C, then add 50 parts of hydrogen peroxide, 25 parts of urea, and react for 75 minutes;

[0063] hydrolysis

[0064] The reactor containing the denatured waste animal hair was heated to 75° C., then 15 parts of sodium hydroxide was added, and the reaction was carried out for 75 minutes. Then add 150 parts of sodium bisulfite, react for 75 minutes, finally adjust its pH to 6.5 with 25 parts of acetic acid, and filter;

[0065] 3) Concentrate

[0066] Take 1000 parts of the hydrolysis filtrate, and use an external circulation vacuum concentrator to concentrate it to a concentration of 70% by using an external heating type natural circulation type and a negative pressure evaporation method;

[0067] 4) Biological fermentation

[0068] Take 1000 parts of the concentrated solution and hea...

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PUM

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Abstract

The invention discloses a preparation method of an organic fertilizer based on waste animal hair. The preparation method comprises the steps: modifying the waste animal hair by adopting hydrogen peroxide and urea, then hydrolyzing the waste animal hair by adopting sodium hydroxide and sodium hydrogen sulfite, then adjusting the pH value of hydrolysate to be neutral by adopting acetic acid, filtering, concentrating, fermenting by adopting a composite biological strain, and granulating with soil, and thus obtaining the organic fertilizer based on waste animal hair hydrolysate. According to the method, waste is turned into wealth, resource utilization is achieved, the range of the waste animal hair is expanded, and the sustainable development concept is met. The fertilizer can be used for fertilization of various crops, plays a role in improving the soil structure and improving the fertilizer efficiency, and realizes resource utilization of waste animal hair.

Description

technical field [0001] The invention relates to the field of resource utilization of waste biomass, in particular to a preparation method of an organic fertilizer based on waste animal hair. Background technique [0002] Animal husbandry has an important position and role in my country's national economy. While animal husbandry provides people with daily necessities such as meat, eggs, and milk, it also produces by-products such as skin and hair. Among them, the most common hairs are pig hair, wool, cow hair, chicken hair, camel hair, duck hair (down) and goose down (down), and the annual output reaches millions of tons (Liu Yuanjun, Wang Xueyan. Feather keratin in textile dyeing and finishing Applications. Knitting Industry, 2012, (11): 50-53.). If all can be used reasonably, it will benefit mankind more. Wool, pig hair (bristle), duck feather (down) and goose feather (down) have been used in wool spinning industry, garment industry and daily life respectively. However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F1/00
CPCC05C9/00C05F1/005Y02A40/20
Inventor 欧阳迈罗建勋杜曼宜苏荣荣曾智磊赵春兰
Owner JIAXING UNIV
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