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A high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material

An anaerobic fermentation and waste technology, applied in waste fuel, agriculture, fermentation, etc., can solve the problems of low-temperature manure entering and destroying the balance of fermentation

Active Publication Date: 2021-10-12
河南省图天新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material in order to solve the problem that a large amount of low-temperature manure enters the fermentation tank and destroys the fermentation balance in the existing biogas fermentation process.

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  • A high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material
  • A high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material

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Effect test

Embodiment 1

[0031] The high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material of the present invention comprises the following steps:

[0032] Step (1) Pretreatment: Send the agricultural comprehensive waste into the sewage collection tank. Before sending the agricultural comprehensive waste to the sewage collection tank, first let the agricultural comprehensive waste pass through the grid tank for natural precipitation to remove the mud in the feces Sand, while manual removal of suspended solids;

[0033] Step (2) Dilution and degradation: return the biogas slurry to the agricultural comprehensive waste treated in step S1, and after a period of time, properly replenish clean water according to the amount of biogas slurry. The agricultural comprehensive waste in the pool was stirred for 10 minutes to degrade part of the suspended matter;

[0034] Step (3) Feeding: the agricultural comprehensive waste treated in step S2 is transported to the ...

Embodiment 2

[0041] The high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material of the present invention comprises the following steps:

[0042] Step (1) Pretreatment: Send the agricultural comprehensive waste into the sewage collection tank. Before sending the agricultural comprehensive waste to the sewage collection tank, first let the agricultural comprehensive waste pass through the grid tank for natural precipitation to remove the mud in the feces Sand, while manual removal of suspended solids;

[0043] Step (2) Dilution and degradation: return the biogas slurry to the agricultural comprehensive waste treated in step S1, and after a period of time, add water appropriately according to the amount of biogas slurry. The amount of water added is 36% of the quality of the agricultural comprehensive waste, and the sewage The agricultural comprehensive waste in the pool was stirred for 14 minutes to degrade part of the suspended matter;

[0044]...

Embodiment 3

[0051] The high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material of the present invention comprises the following steps:

[0052] Step (1) Pretreatment: Send the agricultural comprehensive waste into the sewage collection tank. Before sending the agricultural comprehensive waste to the sewage collection tank, first let the agricultural comprehensive waste pass through the grid tank for natural precipitation to remove the mud in the feces Sand, while manual removal of suspended solids;

[0053] Step (2) Dilution and degradation: return the biogas slurry to the agricultural comprehensive waste treated in step S1, and after a period of time, add water appropriately according to the amount of biogas slurry. The amount of water added is 38% of the quality of the agricultural comprehensive waste, and the sewage The agricultural comprehensive waste in the pool was stirred for 18 minutes to degrade part of the suspended matter;

[0054]...

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Abstract

The invention discloses a high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material, belongs to the technical field of biogas fermentation equipment, and is used to solve the problem that a large amount of low-temperature manure enters the fermentation tank and destroys the fermentation balance in the existing biogas fermentation process . The present invention includes: S1 pretreatment: first make the agricultural comprehensive waste go through the grid tank for natural sedimentation to remove the sediment in the feces, and at the same time manually remove the suspended matter; S2 dilution degradation: add the agricultural comprehensive waste after the S1 step treatment Backflow biogas slurry, after a period of time, properly replenish clean water according to the amount of biogas slurry; S3 feed: preheat the agricultural comprehensive waste to keep the solution temperature within the range of 35±2°C; S31 adopts a flexible feeding method.

Description

technical field [0001] The invention relates to the technical field of biogas devices, and more specifically relates to a high-efficiency anaerobic fermentation process using agricultural comprehensive waste as raw material. Background technique [0002] The biogas project is that organic matter such as breeding manure, straw, and kitchen waste is fermented in an anaerobic fermentation tank at a medium temperature (35±2°C), and uses the metabolism of anaerobic microorganisms to remove most of the organic matter and produce a large amount of biogas (mainly composed of 50%-80% methane), biogas residue, biogas slurry. The cultivation of microbial flora, especially keeping it in the best fermentation state is a long process. Once this state is destroyed, it is very difficult and takes a long time to recover. Anaerobic fermentation refers to the stabilization of waste through the metabolic activities of microorganisms under anaerobic conditions, accompanied by changes in the pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P5/02C02F11/04C05F17/00
CPCC02F11/04C05F17/00C12P5/023Y02E50/30Y02W30/40
Inventor 李志鹏吕风荣胡娜黄倩赵云飞卢凤娟周振兴
Owner 河南省图天新能源科技有限公司
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