Resource utilization method for livestock breeding waste

A technology for breeding waste and recycling, applied in the field of animal husbandry waste recycling, can solve problems affecting the development of aquaculture, environmental pollution, threats to animal health, etc., to achieve emission reduction of pollutants, less energy consumption, The effect of increasing the added value of products

Inactive Publication Date: 2017-12-01
曾召禄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of livestock manure not only causes serious environmental pollution, but also

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for resource utilization of animal husbandry waste, the method specifically includes the following steps:

[0018] (1) Use clean water to wash the pig farm feces, and enter the flushing water containing the feces into the adjustment tank, and after passing through the grid to sieve, obtain sieve residue and waste water;

[0019] (2) Pass the waste water separated in step (1) into the biogas fermentation unit, and the biogas produced by fermentation is collected in the gas collection tank; after the fermentation, the discharged material is dehydrated into biogas residue and biogas slurry, and a part of the biogas slurry is mixed back to Biogas fermentation unit, another part of the biogas slurry is made into concentrated liquid fertilizer by membrane concentration method;

[0020] (3) Mix the sieve slag in step (1) with the dried livestock manure collected in the septic tank and send it into the pre-fermentation tank for pre-fermentation treatment, wherein the p...

Embodiment 2

[0024] A method for resource utilization of animal husbandry waste, the method specifically includes the following steps:

[0025] (1) Use clean water to wash the pig farm feces, and enter the flushing water containing the feces into the adjustment tank, and after passing through the grid to sieve, obtain sieve residue and waste water;

[0026] (2) Pass the waste water separated in step (1) into the biogas fermentation unit, and the biogas produced by fermentation is collected in the gas collection tank; after the fermentation, the discharged material is dehydrated into biogas residue and biogas slurry, and a part of the biogas slurry is mixed back to Biogas fermentation unit, another part of the biogas slurry is made into concentrated liquid fertilizer by membrane concentration method;

[0027] (3) Mix the sieve slag in step (1) with the dried livestock manure collected in the septic tank and send it into the pre-fermentation tank for pre-fermentation treatment, wherein the p...

Embodiment 3

[0031] A method for resource utilization of animal husbandry waste, the method specifically includes the following steps:

[0032] (1) Use clean water to wash the excrement from the cattle farm, and enter the flushing water containing the excrement into the adjustment tank, and sieve through the grid to obtain sieve residue and waste water;

[0033] (2) Pass the waste water separated in step (1) into the biogas fermentation unit, and the biogas produced by fermentation is collected in the gas collection tank; after the fermentation, the discharged material is dehydrated into biogas residue and biogas slurry, and a part of the biogas slurry is mixed back into Biogas fermentation unit, another part of the biogas slurry is made into concentrated liquid fertilizer by membrane concentration method;

[0034] (3) Mix the sieve slag in step (1) with the dried livestock manure collected in the septic tank and send it into the pre-fermentation tank for pre-fermentation treatment, wherei...

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PUM

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Abstract

The invention relates to a resource utilization method for livestock breeding waste. The method comprises steps as follows: manure in a livestock farm is washed with clear water and sieved with a grid, and sieve residues and waste water are obtained; the waste water is introduced into a biogas fermentation unit to be fermented, and biogas is generated; biogas residues and a part of biogas slurry are returned to the biogas fermentation unit after fermentation, and the other part of the biogas slurry is made into a concentrated liquid fertilizer through a membrane concentration method; the sieve residues and dry livestock manure are mixed and sent to a pre-fermentation tank to be pre-fermented, and a fermentation substrate is obtained; the biogas residues and the fermentation substrate are fermented at a controlled temperature in a compost unit and crushed into fine powder, the fine powder is pelletized, dried and packaged, and an organic fertilizer is obtained. With the adoption of the method, high-value utilization and reduction of pollutants of the livestock breeding waste resources are realized, and the purposes of recycling the resources and reducing emission of the pollutants are achieved.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of breeding waste in the process of animal husbandry, and in particular relates to a resource utilization method of animal husbandry waste. Background technique [0002] In recent years, with the rapid development of animal husbandry, the development of animal husbandry and the transformation of production methods have promoted agricultural efficiency and farmers' income, but at the same time it has also brought about a large increase in livestock manure and sewage and concentrated discharge. A large amount of animal manure not only causes serious environmental pollution, but also poses a threat to the health of animals and affects the development of the breeding industry. Therefore, effective technical measures must be taken for the treatment of animal husbandry manure to make the manure treatment harmless, reduce and recycle, so as to promote the sustainable and healthy develop...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00C12P5/02
CPCC05F3/00C05F17/50C05F17/70C05G3/00C12P5/023C05F9/04C05F11/08C05F11/00C05F5/002Y02E50/30Y02W30/40
Inventor 曾召禄
Owner 曾召禄
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