Method for carrying out aerobic composting by utilizing pond sludge

An aerobic composting and pond mud technology, which is applied in the preparation of organic fertilizers, sewage/sludge fertilizers, and applications, can solve the problems of nutrient loss, long cycle, greenhouse gas emissions, etc., and achieves fast composting speed and thick farming The effect of layers, composting raw materials being readily available
CN112430168AInactive Publication Date: 2021-03-02SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
Publication Date
2021-03-02
Estimated Expiration
Not applicable · inactive patent
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Abstract

The invention belongs to the technical field of composting treatment, and particularly relates to a method for aerobic composting by using pond sludge. The method comprises the following steps: putting a mixture containing pond sludge, silkworm excrement and mushroom residues as a composting raw material in an environment with initial water content of 40-55% and room temperature for natural fermentation, carrying out primary fermentation to a high temperature of 50-65 DEG C, maintaining the temperature, carrying out irregular turning, supplementing water to 40-55%, continuously conducting heating for secondary fermentation, completing compost maturity within 25-30 days, taking a compost sample, and determining the germination index which can exceed 80% which indicats that the pond sludge is thoroughly matured by the method. Silkworm excrement rich in microorganisms and mushroom residues rich in organic matter are added to serve as a conditioner, aerobic composting decomposition of thepond sludge is achieved, and fertilizer application of the pond sludge is achieved. By adopting the pond sludge, various nutrients can be supplied to crops, a plough layer can be thickened, the physical properties of soil can be improved, and the fertilizer retention capacity of the soil can be improved.
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Description

technical field

[0001] The invention belongs to the technical field of composting, and in particular relates to a method for aerobic composting using pond mud. Background technique

[0002] Composting generally refers to composting treatment, which refers to the biochemical process of using microorganisms that exist widely in nature to promote the conversion of degradable organic matter in solid waste into stable humus in a controlled manner. Composting is a process of producing organic fertilizer. It contains rich nutrients and has a long and stable fertilizer effect. The mixed use of chemical fertilizers can make up for the single nutrient contained in chemical fertilizers, and the long-term single use of chemical fertilizers will cause soil compaction, water retention, and fertilizer retention.

[0003] In the prior art, various organic wastes are mainly used as raw materials for composting, including some agricultural wastes such as vegetable leaves and straws, and othe...

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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