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Fermenting method for organic solid wastes

A solid waste and organic solid technology, which is applied in the preparation of organic fertilizers, organic fertilizers, and bio-organic parts treatment, etc., can solve the problems of poor fertilizer efficiency and high pollution of ammonia nitrogen emissions, and achieve better fertilizer efficiency, stable ammonia nitrogen, and improved fertilizer efficiency. The effect of ammonia nitrogen content

Inactive Publication Date: 2015-06-10
GUANGXI UNIV
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  • Application Information

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Problems solved by technology

[0006] In order to solve the above-mentioned problems in the process of fermenting organic solid waste, which lead to more ammonia nitrogen emissions, pollute the air, and poor fertilizer efficiency after fermentation, a fermentation method for organic solid waste is invented, aiming at reducing the amount of organic solid waste fermented. In the process, the discharge of ammonia nitrogen can be improved while improving the fertilizer efficiency after fermentation

Method used

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  • Fermenting method for organic solid wastes

Examples

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Effect test

Embodiment 1

[0029] Take 20kg of bacteria stick residue as raw material, then add 8kg of fresh pig manure and 3kg of fresh chicken manure into a 60L open fermenter, adjust the C / N ratio in the raw material to 20-35:1, and control the moisture content in the raw material 55%, then add 1.6kg of desulfurized gypsum (accounting for 5%) and mix well to form a heap. Fermentation is carried out at room temperature. During the fermentation process, turn the heap or ventilate every 3 days, and ferment for 6 days.

Embodiment 2

[0031] Take 15kg of sugar factory filter mud as raw material, then add 10kg of fresh cow dung, 1kg of sugarcane leaves (crushed to <2cm) and put them into a 60L open fermenter to adjust the C / N ratio of the raw materials to 20-35:1. Control the moisture content in the raw material to 60%, then add 2.6kg of desulfurized gypsum (accounting for 10%) and mix well to form a heap, ferment at room temperature, turn over or ventilate once every 5 days during the fermentation process, It can be fermented for 21 days.

Embodiment 3

[0033] Take 15kg of grass, wood and peat as raw materials, then add 10kg of fresh pig manure, 10kg of fresh chicken manure, 10g of human manure, and 10g of sewage sludge into a 60L open fermentation tank to adjust the C / N ratio of the raw materials to 20-35 : 1, control the moisture content in the raw material to 70%, then add 8.25kg of desulfurized gypsum (accounting for 15%) and fully mix to form a heap, ferment at room temperature, and turn over the heap every 10d in the fermentation process or Ventilate and ferment for 27 days.

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Abstract

The invention discloses a fermenting method for organic solid wastes. The fermenting method comprises the following operation steps: (1) getting organic solid wastes as raw materials, regulating a C / N ratio to be (20-35) to 1 and regulating the moisture content to be 55-70%; (2) mixing desulfurized gypsum with mass fraction of 5-15% in terms of wet weight of organic solid waste raw materials in the step (1) with the organic solid wastes obtained in the step (1) to form a pile body and ferment. In order to solve the problems that air is polluted by much ammonia nitrogen emission in a fermentation treatment process of the organic solid wastes in the prior art, and the fertilizer efficiency after fermentation is not good, the invention discloses the fermenting method for the organic solid wastes, which aims to improve the fertilizer efficiency after the fermentation while the ammonia nitrogen emission amount in the organic solid waste fermentation process is reduced.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of organic solid waste, and in particular relates to a fermentation method of organic solid waste. Background technique [0002] With the explosive growth of the population, people's demand for animal husbandry products is also increasing day by day. Therefore, the animal husbandry industry has experienced continuous and rapid development, and has become increasingly large-scale, centralized and industrialized. However, the high density of the animal husbandry industry has made The amount of livestock and poultry manure greatly exceeds the processing and utilization capacity of its surrounding environment, thus polluting the environment and forming a public nuisance. [0003] Composting is considered to be an effective means to recycle, harmless and reduce organic solid waste. Composting is a biochemical process that promotes the transformation of biodegradable organic matter into st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05G3/04C05G3/80
CPCY02W30/40
Inventor 李群良郭晓博陆彦宇
Owner GUANGXI UNIV
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