Carbon-based auxiliary, preparation method thereof and application in livestock manure composting

A technology of livestock manure and base auxiliary materials, which is applied in the field of solid waste recycling, can solve the problems of easy anaerobic acidification, difficult recycling, low mass transfer efficiency, etc., and achieves obvious deodorization effect, simple operation process and adsorption. powerful effect

Active Publication Date: 2016-06-08
SUZHOU ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a carbon-based auxiliary material and its preparation method and its application in poultry and livestock manure composting. Decomposition, low mass transfer efficiency, difficult to recycle and prone to anaerobic acidification and other problems

Method used

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  • Carbon-based auxiliary, preparation method thereof and application in livestock manure composting
  • Carbon-based auxiliary, preparation method thereof and application in livestock manure composting
  • Carbon-based auxiliary, preparation method thereof and application in livestock manure composting

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: a kind of carbon-based auxiliary material and preparation method thereof

[0039] The pruned branches and discarded tree trunks are processed into 5-13cm granular biomass materials with a mechanical cutting machine, and then the granular biomass materials are placed in a cracking furnace. The cracking time is 90 minutes, then cooled and set aside to obtain the carbon-based auxiliary material.

Embodiment 2

[0040] Embodiment 2: the application of a kind of carbon-based auxiliary material in poultry manure composting

[0041] composting process by figure 1 As shown in the operation, according to the volume ratio of 1:0.33:0.67, the livestock and poultry manure, mushroom residue, and the carbon-based auxiliary materials of Example 1 are mixed in sequence. The moisture content of the mixed material is 65%, and the carbon-to-nitrogen ratio on a dry basis is controlled at about 18. , the mixed material is subjected to high-temperature aerobic fermentation in the organic fertilizer production workshop. The composting process includes a heating-up stage, a high-temperature stage, and a cooling stage. Turn the compost when the temperature is higher than 75°C, or once every 7-10 days; after 28-35 days of fermentation, use a sieve with a pore size of 2 cm to screen the carbon-based auxiliary materials from the compost mixture and monitor the temperature of the composting process And the d...

Embodiment 3

[0042] Embodiment 3: the application of a kind of carbon-based auxiliary material in poultry manure composting

[0043] composting process by figure 1 According to the operation shown, according to the volume ratio of 1:0.4:0.6, the livestock and poultry manure, mushroom residue, and the carbon-based auxiliary materials of Example 1 are mixed successively. The moisture content of the mixed material is controlled at 70%, and the carbon-nitrogen ratio on a dry basis is controlled at 19. At the same time, the volume ratio of livestock and poultry manure, mushroom residue, and carbon-based auxiliary materials is 1:0.7:0.3 and 1:0.1:0.9 as a control. The rest of the operating steps were the same as in Example 2, and the whole test was repeated 3 times. Figure 4 The results are remarkable. When carbon-based auxiliary materials replace 90% of conventional auxiliary materials, the heating effect on the composting process is not as good as that of 30% and 60% treatments, and the warm...

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Abstract

A carbon-based auxiliary, a preparation method thereof and application in livestock manure composting are characterized in that the carbon-based auxiliary is a granular biomass homogeneous body which is obtained through incomplete splitting decomposition under an oxygen-free condition at a temperature of 650 DEG C to 750 DEG C, has granularity of 5 cm to 13 cm and is not completely carbonized. The application includes the following steps of firstly, mixing livestock manure, conventional auxiliary and the carbon-based auxiliary according to the volume ratio of 1:(0.33-0.5):(0.5-0.67) to obtain a first mixed material; secondly, conducting composting through a high-temperature aerobic fermentation mode, turning piles, and discharging materials 28-35 days later; thirdly, screening the carbon-based auxiliary out of the piles, air-drying the carbon-based auxiliary, and making the air-dried carbon-based auxiliary serve as a recycled carbon-based auxiliary; fourthly, when processing the next batch of piles, mixing the livestock manure, the conventional auxiliary, the recycled carbon-based auxiliary and the primarily-used carbon-based auxiliary according to the volume ratio of 1:(0.33-0.5):(0.25-0.34):(0.25-0.33) to obtain a second mixed material, and conducting composting. The effects on reducing the consumption of the conventional auxiliary, promoting temperature rise, shortening the cycle, recycling the carbon-based auxiliary and the like are achieved.

Description

technical field [0001] The invention belongs to the field of solid waste recycling, and relates to a process for aerobic composting of livestock and poultry manure, in particular to a carbon-based auxiliary material for promoting corrosion and controlling ammonia and its preparation method and its use in composting of poultry and poultry manure. in the application. Background technique [0002] The rapid development of China's livestock and poultry breeding industry has greatly enriched the market supply and increased farmers' income. However, the resulting livestock and poultry manure has also put a huge pressure on the ecological environment. According to statistics, the total amount of livestock and poultry manure produced in my country in 2015 About 6 billion tons. Since more than 80% of the intensive livestock and poultry farms in my country did not comprehensively consider the "combination of agriculture and animal husbandry and balance of planting and breeding" in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05F11/00C05G3/00C05F11/08
Inventor 王海候沈明星何胥陆长婴金梅娟施林林周新伟朱兴连
Owner SUZHOU ACADEMY OF AGRI SCI
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