Process for producing biogas through livestock and poultry solid excrements

A feces and solid technology, applied in the field of livestock and poultry breeding, can solve the problems of environmental threats such as the development of livestock and poultry breeding industry, high technical requirements for operators, pollution of groundwater and air, etc., and achieve the effect of convenient application, simple process and pollution reduction

Inactive Publication Date: 2018-03-30
山东绿福地生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most prominent problem is: large-scale breeding of livestock and poultry concentrated discharge without effective treatment, which constitutes a huge source of pollution, and the threat to the environment has become the main obstacle restricting the development of livestock and poultry breeding industry in the future.
However, no matter which mode is used, either the investment is large, the operating cost is high, the economic benefit is low, and the operator's technical requirements are high; The amount of manure is limited, which may pollute groundwater, the atmosphere, and many other deficiencies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The technique of utilizing livestock and poultry solid manure to produce biogas described in this embodiment comprises the following steps:

[0026] 1. Pretreatment of livestock and poultry solid manure

[0027] Put the solid feces of livestock and poultry in the septic tank, and use a high-pressure water gun to hydraulically crush the feces. The hydraulically crushed feces are mixed with water to form feces; make the feces flow through the grille and filter through the grille to remove the feces. Weeds and feathers; the filtered manure flows to the grit chamber, and the manure is left in the grit chamber to make the gravel in the manure settle to the bottom of the pond; the feces floating on the upper layer are separated from the grit chamber, and solidified The liquid separator dehydrates the feces to reduce the water content of the feces to 20-25%; the waste water in the grit chamber is discharged to the sump;

[0028] 2. Anaerobic biological treatment

[0029] 2A....

Embodiment 2

[0036] The technique of utilizing livestock and poultry solid manure to produce biogas described in this embodiment comprises the following steps:

[0037] 1. Pretreatment of livestock and poultry solid manure

[0038] Put the solid feces of livestock and poultry in the septic tank, and use a high-pressure water gun to hydraulically crush the feces. The hydraulically crushed feces are mixed with water to form feces; make the feces flow through the grille and filter through the grille to remove the feces. Weeds and feathers; the filtered manure flows to the grit chamber, and the manure is left in the grit chamber to make the gravel in the manure settle to the bottom of the pond; the feces floating on the upper layer are separated from the grit chamber, and solidified The liquid separator dehydrates the feces to reduce the water content of the feces to 20-25%; the waste water in the grit chamber is discharged to the sump;

[0039] 2. Anaerobic biological treatment

[0040] 2A....

Embodiment 3

[0047] The technique of utilizing livestock and poultry solid manure to produce biogas described in this embodiment comprises the following steps:

[0048] 1. Pretreatment of livestock and poultry solid manure

[0049]Put the solid feces of livestock and poultry in the septic tank, and use a high-pressure water gun to hydraulically crush the feces. The hydraulically crushed feces are mixed with water to form feces; make the feces flow through the grille and filter through the grille to remove the feces. Weeds and feathers; the filtered manure flows to the grit chamber, and the manure is left in the grit chamber to make the gravel in the manure settle to the bottom of the pond; the feces floating on the upper layer are separated from the grit chamber, and solidified The liquid separator dehydrates the feces to reduce the water content of the feces to 20-25%; the waste water in the grit chamber is discharged to the sump;

[0050] 2. Anaerobic biological treatment

[0051] 2A. ...

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PUM

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Abstract

The invention relates to a process for producing biogas through livestock and poultry solid excrements, and belongs to the technical field of livestock and poultry breeding. The process includes the following steps of firstly, preprocessing the livestock and poultry solid excrements; secondly, conducting anaerobic biological treatment, wherein a fermentation auxiliary material is prepared, fermentation fungus liquid is prepared, the livestock and poultry solid excrements and the fermentation auxiliary material are sufficiently mixed to prepare a mixed material, the mixed material is put in a biogas digester, the fermentation fungus liquid is prayed in the mixed material, anaerobic digestion is conducted, generated biogas is collected in a storage cylinder, biogas slurry and biogas residuesare further processed and can be used for greening and applying. The process is simple in process, low in cost, rapid in fermentation speed and uniform and stable in gas generation, nutrients lost infermentation are few, the obtained organic fertilizer is high in fertilizer efficiency and convenient to apply, and the pollution-free ecological healthy livestock and poultry breeding mode is realized.

Description

technical field [0001] The invention relates to a process for producing biogas by using solid feces of livestock and poultry, and belongs to the technical field of livestock and poultry breeding. Background technique [0002] In recent years, the livestock and poultry breeding industry has developed rapidly, but at the same time, there are many outstanding problems. The most prominent problem is that large-scale livestock and poultry are intensively discharged without effective treatment, which constitutes a huge source of pollution, and the threat to the environment has become a major obstacle restricting the development of livestock and poultry breeding in the future. [0003] At present, the treatment modes of livestock and poultry manure mainly include: standard discharge mode, planting and breeding balance mode, biogas ecological mode, etc. However, no matter which mode is used, either the investment is large, the operating cost is high, the economic benefit is low, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C02F11/04C05F9/04C02F103/20
CPCC02F11/00C02F11/04C02F11/12C02F11/121C02F2103/20C02F2209/02C02F2303/04C05F9/04Y02A40/20Y02E50/30
Inventor 王亮张旭王艳武蕾蕾袁震公免霞
Owner 山东绿福地生物科技有限公司
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