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Method and device for high-temperature rapid fermentation on agricultural waste to produce organic fertilizer

An agricultural waste, high-temperature rapid technology, applied in the preparation of organic fertilizers, organic fertilizers, fertilization devices, etc.

Active Publication Date: 2015-05-13
天津市生态环境科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the straw is only returned to the field through the belly of the livestock, its energy utilization rate is only 20%, and the utilization rate of nutrients such as nitrogen, phosphorus, and potassium is only 60%.

Method used

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  • Method and device for high-temperature rapid fermentation on agricultural waste to produce organic fertilizer
  • Method and device for high-temperature rapid fermentation on agricultural waste to produce organic fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Method and device for producing organic fertilizer by high-temperature rapid fermentation of agricultural waste

[0045] A device for producing organic fertilizer by high-temperature rapid fermentation of agricultural waste, which is composed of a material storage system, a heating system, a stirring system, a dehumidification and biological deodorization system, an oxygenation system, a feeding and discharging system, and an electrical automatic control system. The material storage system is a stainless steel U-shaped fermentation box 1 placed on the overall frame 2; the heating system is composed of a heating and insulating jacket 3, a heat transfer oil 4 and an electric heating tube 5, and the heating and insulating jacket 3 is located in the U-shaped The outer wall of the fermentation box 1, the heat transfer oil 4 and the electric heating tube 5 are located in the jacket 3, and are provided with a heat transfer oil inlet 17 and a heat transfer oil discharge port 18,...

Embodiment 2

[0047] A method for producing organic fertilizer using a high-temperature rapid fermentation of agricultural waste to produce organic fertilizer, which is characterized in that the moisture content of the mixture of livestock manure and straw agricultural waste is required to be ≤ 60%, and the C / N ratio is between 20-30 , the bacteria agent used is thermophilic complex microbial flora, the mixed bacteria contained in the complex flora include Brevibacillus borstelensis, Bacillus sp., Geobacillus sp. , extreme thermophile (Calditerricola yamamurae) and Saccharomyces.Cerevisiae (Saccharomyces.Cerevisiae), the highest thermophile temperature is > 80 ℃, and can produce stable, decomposed and harmless organic fertilizer products through high-temperature fermentation within 9 hours;

[0048] The detailed steps are as follows:

[0049] (1) When using a high-temperature rapid fermentation device, first mix livestock and poultry manure, straw, organic domestic waste, agricultural waste...

Embodiment 3

[0054] A method for producing organic fertilizer using a high-temperature rapid fermentation of agricultural waste to produce organic fertilizer, which is characterized in that the moisture content of the mixture of livestock manure and straw agricultural waste is required to be ≤ 60%, and the C / N ratio is between 20-30 , the bacteria agent used is thermophilic complex microbial flora, the mixed bacteria contained in the complex flora include Brevibacillus borstelensis, Bacillus sp., Geobacillus sp. , extreme thermophile (Calditerricola yamamurae) and Saccharomyces.Cerevisiae (Saccharomyces.Cerevisiae), the highest thermophilic temperature> 80 ℃, and can produce stable, decomposed and harmless organic fertilizer products through high-temperature fermentation within 9 hours;

[0055] The detailed steps are as follows:

[0056] (1) When using a high-temperature rapid fermentation device, first mix livestock and poultry manure, straw, organic domestic waste, agricultural waste an...

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Abstract

The invention discloses a method and a device for high-temperature rapid fermentation on agricultural waste to produce an organic fertilizer. The device comprises a material storage system, a heating system, a stirring system, a dehumidification and biodeodorization system, an oxygenation system, a feeding and discharging system and electric automatic control systems, wherein the material storage system comprises a U-shaped fermentation tank and an overall rack; the heating system comprises a heating insulating jacket, heat-conducting oil and an electric heating tube; the stirring system comprises a gear motor, a stirring shaft and a dual-layer spiral mixing blade; dehumidification and biodeodorization system comprises a dehumidifier and a biodeodorization filter material; the oxygenation system comprises an air compressor and an oxygen delivery pipeline; the feeding and discharging system comprises a feeding hole and a discharge hole; the electric automatic control systems of various units are uniformly connected to an electric control box. According to the method and the device, agricultural waste and thermophilic composite microbial agents can be evenly stirred and mixed, and are rapidly heated, so that the temperature in the device reaches 80-100 DEG C; harmful microorganisms and pathogens in the waste can be effectively inactivated; meanwhile, the activity of the thermophilic composite microbial agents is activated; and the organic fertilizer product is produced within 9 hours.

Description

technical field [0001] The invention belongs to the field of agricultural waste pollution control and treatment, and relates to a method and a device for producing organic fertilizer from agricultural waste, in particular to a method and a device for producing organic fertilizer by high-temperature rapid fermentation of agricultural waste. Background technique [0002] According to the statistics of the United Nations Environment Program (UNEP), the world produces about 1.7 billion tons of crop straw every year. From 1998 to 2000, Western Europe accumulated 700 million tons of agricultural waste; France produced an average of 365 million tons of agricultural waste annually from 1995 to 2006; and Germany accumulated 175 million tons of agricultural waste in 2000. my country is the country with the largest output of agricultural waste in the world, with an annual output of more than 4 billion tons, including 700 million tons of crop straw, 2.61 billion tons of livestock and po...

Claims

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Application Information

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IPC IPC(8): C05F17/02
CPCC05F17/70C05F17/80C05F17/90Y02W30/40
Inventor 袁敏温娟闫平罗彦鹤宋兵魁宋文华常文韬张维焦亚如孙韬赵晶磊
Owner 天津市生态环境科学研究院
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