Additive for accelerating pig manure composting maturity and preparation method and application thereof

An additive and composting technology, applied in the preparation, application, organic fertilizer and other directions of organic fertilizers, can solve the problems affecting the degree of decomposing, restrictions, etc., and achieve the effect of accelerating the decomposing process, stabilizing the properties, and accelerating the decomposing process.
CN107935640AActive Publication Date: 2018-04-20QINGDAO AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO AGRI UNIV
Publication Date
2018-04-20

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Abstract

The invention provides an additive for accelerating pig manure composting maturity and a preparation method and application thereof, which belong to the technical field of organic fertilizer preparation. The preparation method for the additive for accelerating pig manure composting maturity comprises the following steps: ground wood powder is anaerobically heated under the condition of 90 DEG C to120 DEG C for 1 to 1.5 hours, and is then heated to be carbonized under the condition of 500 DEG C to 600 DEG C for 2 to 3 hours; the obtained wood carbon is mixed with hydrochloric acid solution, and the acid-impregnated substance is washed with water to become neutral, and then dried and ground, so that carbonized wood powder is obtained; the carbonized wood powder and 1 to 1.5mol / L of thioureasolution are mixed for impregnation; the obtained suspension is cured under the condition of 100 DEG C to 120 DEG C for 1 to 2 hours, and is then washed with water until the pH value become neutral,and thereby the additive for accelerating pig manure composting maturity is obtained. The additive for accelerating pig manure composting maturity can accelerate the separation of moisture in organicfertilizer, reduce the loss of nitrogen and increase the degree of manure composting maturity.
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Description

technical field

[0001] The invention belongs to the technical field of organic fertilizer preparation, and in particular relates to an additive for accelerating the composting of pig manure and its preparation method and application. Background technique

[0002] With the rise of large-scale pig breeding industry, a large amount of breeding waste has caused great pressure on the pig house and its surrounding environment, and the problem of pig manure disposal has become a major problem. The use of pig manure to produce organic fertilizer not only solves the problem of environmental pollution caused by pig manure accumulation, but also provides necessary organic fertilizer for the development of agriculture. However, the composition and structure of pig manure make it impossible to compost directly. For the traditional pig manure composting technology, low dehydration efficiency, serious nitrogen loss, and low maturity have become problems that need to be solved urgently in ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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