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Fermentation treatment method for livestock breeding excrement

A treatment method and technology for livestock and poultry breeding, which is applied in the field of livestock and poultry breeding manure fermentation treatment, can solve the problems of increased treatment cost, low fermentation efficiency, and inability to realize circular economy, and achieve the effect of avoiding air pollution

Inactive Publication Date: 2017-09-08
安徽永志环能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many unreasonable points in the design of the existing fermentation technology. For example, in the cold northern regions, due to the low temperature and low fermentation efficiency, a special heating device is required to control the fermentation temperature, which increases the processing cost and cannot realize circular economy.

Method used

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  • Fermentation treatment method for livestock breeding excrement

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Effect test

Embodiment 1

[0021] A method for fermenting livestock and poultry breeding manure, comprising the following steps:

[0022] (1) Wash the feces of the pigsty with water to obtain primary biogas slurry, which automatically flows into the aggregate grit chamber through the sewage pipe network according to the water level drop;

[0023] (2) The primary biogas slurry flowing into the aggregate grit chamber is pumped into the anaerobic device through stirring and metering, and fermented in the anaerobic device. Before fermentation, the primary biogas slurry is subjected to ultrasonic treatment, and the ultrasonic treatment is divided into three stages , set the ultrasonic frequency at 25-35kHz in the first stage, set the ultrasonic frequency at 20-25kHz in the second stage, set the ultrasonic frequency at 15-20kHz in the third stage, control the fermentation time to 10 days, and control the fermentation temperature at 20°C. The positive and negative electrodes are inserted into the primary bioga...

Embodiment 2

[0030] A method for fermenting livestock and poultry breeding manure, comprising the following steps:

[0031] (1) Wash the feces of the pigsty with water to obtain primary biogas slurry, which automatically flows into the aggregate grit chamber through the sewage pipe network according to the water level drop;

[0032] (2) The primary biogas slurry flowing into the aggregate grit chamber is pumped into the anaerobic device through stirring and metering, and fermented in the anaerobic device. Before fermentation, the primary biogas slurry is subjected to ultrasonic treatment, and the ultrasonic treatment is divided into three stages , set the ultrasonic frequency at 25-35kHz in the first stage, set the ultrasonic frequency at 20-25kHz in the second stage, set the ultrasonic frequency at 15-20kHz in the third stage, control the fermentation time to 12.5 days, and control the fermentation temperature at 22.5°C. The positive and negative electrodes are inserted into the primary b...

Embodiment 3

[0039] A method for fermenting livestock and poultry breeding manure, comprising the following steps:

[0040] (1) Wash the feces of the pigsty with water to obtain primary biogas slurry, which automatically flows into the aggregate grit chamber through the sewage pipe network according to the water level drop;

[0041] (2) The primary biogas slurry flowing into the aggregate grit chamber is pumped into the anaerobic device through stirring and metering, and fermented in the anaerobic device. Before fermentation, the primary biogas slurry is subjected to ultrasonic treatment, and the ultrasonic treatment is divided into three stages , set the ultrasonic frequency at 25-35kHz in the first stage, set the ultrasonic frequency at 20-25kHz in the second stage, set the ultrasonic frequency at 15-20kHz in the third stage, control the fermentation time to 15 days, and control the fermentation temperature at 25°C. The positive and negative electrodes are inserted into the primary bioga...

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Abstract

The invention discloses a fermentation treatment method for livestock breeding excrement. The method comprises the following steps: washing the excrement of a pigsty by using water, to obtain primary biogas slurry; stirring and measuring the primary biogas slurry, and pumping into an anaerobic device, fermenting in the anaerobic device; and using marsh gas generated in the fermentation to generate electricity, wherein the waste heat generated in the generation process is used for waste heat warming, and biogas residue after the curing treatment is used for the processes, such as agricultural production. The method is capable of generating the electricity by the marsh gas. The waste heat generated in the generation process is used for warming, and is supplied for the warming of a pig breeding conversation fence, the heating of a fermentation device or the heating of a greenhouse. The energy consumption in the breeding, fermenting and greenhouse planting processes is saved. The method is particularly suitable for the north cold regions and the south regions in winter.

Description

technical field [0001] The invention relates to the technical field of ecological agriculture, in particular to a method for fermenting livestock and poultry breeding manure. Background technique [0002] The utilization technology of livestock and poultry manure is based on natural conditions, economic conditions, breeding scale, environmental carrying capacity and other factors, adopts a variety of technologies and models, scientifically combined, and comprehensively manages livestock and poultry manure to achieve harmless and reduced treatment And the purpose of ecological and resource utilization. At present, livestock and poultry manure in my country is mainly used as raw material for biogas fermentation, fertilizer, and breeding earthworms. [0003] Biogas fermentation technology is to use biogas fermentation equipment to anaerobically ferment the livestock and poultry manure produced by breeding. The biogas produced is used for cooking and lighting, and the biogas re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14F02B43/10F02B63/04F02G5/00
CPCC02F1/36C02F3/28C02F9/00C02F2001/007F02B43/10F02B63/04F02B2043/103F02G5/00Y02T10/12Y02T10/30
Inventor 代永志
Owner 安徽永志环能科技有限公司
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