Biochar based biogas residue organic fertilizer and preparation method thereof

A biogas residue organic fertilizer and biochar technology, which is applied in the preparation of organic fertilizers, the treatment of bio-organic parts, organic fertilizers, etc., can solve the problems of difficult dehydration and solidification of biogas residues, mechanical dehydration and drying energy consumption, negative impact on soil, biogas residues Inappropriate fertilizers and other issues to achieve the effect of slowing down the greenhouse effect, reducing the negative impact on the environment, and reducing emissions
CN106542938AInactive Publication Date: 2017-03-29ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
Publication Date
2017-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides biochar based biogas residue organic fertilizer and a preparation method thereof, belonging to the field of organic waste resource utilization. The method comprises the steps of blending pig manure and straw in biogas residue, and uniformly stirring to obtain a mixture; adding biochar into the mixture, and performing aerobic fermentation to obtain a biogas residue fermentation product; granulating the biogas residue fermentation product and drying, thus obtaining the biochar based biogas residue organic fertilizer, wherein the ratios of the raw materials are as follows: 50 to 60 percent of the biogas residue, 20 to 25 percent of the straw, 15 to 20 percent of livestock excrement and 2 to 7 percent of the biochar. By adopting the preparation method, not only can the aim of organic waste resource utilization be achieved, but also the functions of improving the efficiency of the organic fertilizer and lowering the activity of heavy metal in the organic fertilizer can be realized, thus producing a high-quality, efficient and environment-friendly char based biogas residue organic fertilizer product.
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Description

technical field

[0001] The invention belongs to the technical field of agricultural organic fertilizers, and in particular relates to a biochar-based biogas residue organic fertilizer and a preparation method thereof. Background technique

[0002] Since the reform and opening up, the output of agricultural products in my country has increased greatly, and the contribution of chemical fertilizers is indispensable. However, with the accumulation of time, the side effects of chemical fertilizers have become increasingly prominent: chemical fertilizers cause soil compaction, affect soil air permeability, and long-term application will reduce soil productivity; chemical fertilizer residues have immeasurable impact on the environment, for example, nitrogen fertilizers will be in the form of nitrate for a long time Groundwater is polluted, and excess nitrogen, phosphorus, and potassium fertilizers enter the water body with rainfall runoff, causing eutrophication of the water body. ...

Claims

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