Composting method for promoting humus formation

A composting method and humus technology, applied to fertilizers made from biological waste, organic fertilizers, fertilization devices, etc., can solve the problems that humus cannot provide enough precursor substances, lignocellulose has limited efficiency, and biological preparations are troublesome. Achieve the effects of increasing community diversity, facilitating compost fermentation, and improving compost efficiency and quality

Inactive Publication Date: 2021-02-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the quality of compost products, there are currently methods such as adjusting physical and chemical parameters, adding exogenous additives, and improving the fermentation process. The addition of exogenous additives includes expansion agents, regulators, biological agents and inorganic agents. The essence is to change the microenvironment of composting. , and then change the microbial activity to promote the degradation of lignocellulose and the formation of humus, but the efficiency of microbial degradation of lignocellulose is limited and cannot provide enough precursor substances for the formation of humus
At the same time, the preparation of biological preparations is troublesome and costly

Method used

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  • Composting method for promoting humus formation
  • Composting method for promoting humus formation
  • Composting method for promoting humus formation

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A composting method for promoting the formation of humus, the specific steps are as follows:

[0028] (1) Preparation of bagasse degraded derivatives (BDD): pulverize the bagasse dried to constant weight to 2-3mm, pretreat with 1.5% NaOH solution for 30min to remove most of the plant cell contents (including soluble carbohydrates, starch, organic acids, proteins, etc.), pour off the waste liquid, dry the bagasse to constant weight, and mix the dried bagasse with an ethanol solution with a volume concentration of 40% in a mass ratio of 1:20 Mix, place in an oven, and extract at 200°C until it is dried to constant weight to obtain the pretreated bagasse; mix the pretreated bagasse with nitrobenzene and NaOH with a concentration of 2 mol / L at a concentration of 1: Mix 0.1:50, place in an oven at 160°C to oxidize until dried to constant weight, then mix with deionized water at a ratio of 1:10, shake for 3 hours, centrifuge at 25°C and 10,000rpm for 10 minutes, and then filt...

Embodiment 2

[0031] A composting method for promoting the formation of humus, the specific steps are as follows:

[0032] (1) Preparation of bagasse degraded derivatives (BDD): pulverize the bagasse dried to constant weight to 2-3mm, pretreat with 1.5% NaOH solution for 30min to remove most of the plant cell contents (including soluble carbohydrates, starch, organic acids, proteins, etc.), pour off the waste liquid, dry the bagasse to constant weight, and mix the dried bagasse with an ethanol solution with a volume concentration of 40% in a mass ratio of 1:20 Mix, place in an oven, and extract at 200°C until it is dried to constant weight to obtain the pretreated bagasse; mix the pretreated bagasse with nitrobenzene and NaOH with a concentration of 2 mol / L at a concentration of 1: Mix 0.3:50, place in an oven at 160°C to oxidize until it is dried to constant weight, then mix with deionized water at a ratio of 1:10, shake for 3 hours, centrifuge at 25°C and 10,000rpm for 10 minutes, and the...

Embodiment 3

[0035] A composting method for promoting the formation of humus, the specific steps are as follows:

[0036] (1) Preparation of bagasse degraded derivatives (BDD): pulverize the bagasse dried to constant weight to 2-3mm, pretreat with 1.5% NaOH solution for 30min to remove most of the plant cell contents (including soluble carbohydrates, starch, organic acids, proteins, etc.), pour off the waste liquid, dry the bagasse to constant weight, and mix the dried bagasse with an ethanol solution with a volume concentration of 40% in a mass ratio of 1:20 Mix, place in an oven, and extract at 200°C until it is dried to constant weight to obtain the pretreated bagasse; mix the pretreated bagasse with nitrobenzene and NaOH with a concentration of 2 mol / L at a concentration of 1: Mix 0.2:50, place in an oven at 160°C to oxidize until it is dried to constant weight, then mix with deionized water at a ratio of 1:10, shake for 3 hours, centrifuge at 25°C and 10,000rpm for 10 minutes, and the...

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Abstract

The invention discloses a composting method for promoting humus formation, which comprises the following operation steps: (1) preparing a bagasse degradation derivative: mixing pretreated bagasse withnitrobenzene and NaOH solution, drying the mixture and mixing the mixture with water, carrying out vibration, centrifugation and filtration, and regulating the pH value to be neutral to obtain the bagasse degradation derivative; and (2) compost fermentation: mixing cow dung and bagasse, carrying out compost fermentation, adding 0.5% of the bagasse degradation derivative prepared in the step (1) in the initial stage of the cooling period, and continuing fermentation for 30-46 days. According to the method, the humus is efficiently synthesized, the aromaticity of the humus is improved, the structure of the humus is more complex and stable, and the composting efficiency and quality are improved; furthermore, the method disclosed by the invention is simple, easy to operate and low in cost, and can be used for recycling wastes.

Description

technical field [0001] The invention relates to the technical field of composting fermentation, in particular to a composting method for promoting the formation of humus. Background technique [0002] Today, with the rapid development of China's economy, as a large agricultural country, China's production scale continues to expand, and the production of agricultural waste such as straw and livestock manure continues to increase, which not only has a bad impact on the environment, but also causes serious waste of material resources. At present, the best way to deal with these organic solid wastes is composting technology. Although traditional composting can solve the problem of environmental pollution, it cannot maximize the economic benefits of composting. Therefore, how to improve the efficiency of composting and the quality of composting products to maximize composting The economic benefit has become one of the main problems to be solved at present. [0003] In composting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05G3/80C05G3/60
CPCC05F3/00C05F17/00C05G3/60C05G3/80C05F5/002C05F11/02Y02W30/40
Inventor 李群良李新添
Owner GUANGXI UNIV
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