Production technology for producing solid organic fertilizer from anaerobic biogas residues

A production process and technology for organic fertilizers, applied in the field of organic fertilizers, can solve problems such as low curing efficiency, inability to sell, waste of resources and the environment, and achieve the effects of reducing cultivation costs, lightening farmers' burdens, and short fermentation cycle

Inactive Publication Date: 2019-11-05
JIANGSU YIJIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0004] my country is a large agricultural country, and is gradually accelerating the process of urbanization. The current problems are: first, the output of various agricultural crop straws is very high, and at least 70% of them are not effectively used, and they are still mainly burned in the fields, causing a large number of straws. Waste of resources and environmental pollution; second, the level of urban and rural greening has been continuously improved, and green vegetation, grass cuttings and tree leaves have increased year by year; third, the breeding industry has continued to develop, and poultry manure has gradually increased
This method takes as long as 5-6 months to pretreat biogas residues, and adopts air-drying and solidification, which has low solidification efficiency and cannot make full use of straw,

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  • Production technology for producing solid organic fertilizer from anaerobic biogas residues

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Embodiment Construction

[0037] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0038] A production process utilizing anaerobic biogas residue to produce solid organic fertilizer, comprising the following steps:

[0039] (1) Mixing of raw materials

[0040] After the biogas residue produced by anaerobic fermentation of organic matter is dehydrated, the moisture content of the biogas residue is 70-75%, and the moisture content of the mixed raw material is 60-65% by adding crushed straw with a moisture content of 10-20%; The volume ratio of biogas residue to straw is 4-6:1;

[0041] The mixed raw materials are stacked in the mixed raw material stockpile, and the fermented bacteria are added to form a mixed material, which is aged for 1...

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Abstract

The invention discloses a production technology for producing a solid organic fertilizer from anaerobic biogas residues. The technology comprises the following steps: blending of raw materials, distribution and aerobic fermentation of the obtained mixture, secondary aging of a material obtained after the aerobic fermentation, preparation of a powdery fertilizer, and preparation of the granular fertilizer. The production technology provided by the invention is perfect and economical, rationally utilizes biogas residues and straws, and also has the advantages of short production cycle, energy saving and environmental protection. The organic fertilizer produced by the technology has a high production efficiency and a good fertility.

Description

technical field [0001] The invention relates to the technical field of organic fertilizers, in particular to a production process for producing solid organic fertilizers using anaerobic biogas residues. Background technique [0002] After years of research and practice, it has been proved that the organic waste generated in people's lives and the environment, such as: organic matter sorted from domestic waste, crop straw, forest leaves, green vegetation clippings, kitchen waste, poultry manure etc. The most realistic and effective treatment method is dry anaerobic fermentation, which will produce biogas, biogas slurry and biogas residue after fermentation. Among them: biogas can be used for gas-fired power generation; biogas slurry can be used for production after sewage treatment reaches the standard; and how to effectively use biogas residue rich in nutrients to turn waste into treasure and maximize economic and environmental benefits And social benefit is a big problem a...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05F17/00C05F17/02
CPCC05D1/00Y02W30/40Y02P20/10
Inventor 宋正兴董延君楚清华蒙剑琼陈砚雄刘华东
Owner JIANGSU YIJIN ENVIRONMENTAL PROTECTION TECH CO LTD
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