A method for microbial pretreatment to promote composting of livestock and poultry manure

A livestock and poultry manure pretreatment technology, applied in the direction of microbial treatment, joint biological treatment, biological organic part treatment, etc., to achieve the effect of simple operation, increased abundance, and low cost

Active Publication Date: 2021-11-12
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the application of Glyophyllum compactus in the field of composting

Method used

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  • A method for microbial pretreatment to promote composting of livestock and poultry manure
  • A method for microbial pretreatment to promote composting of livestock and poultry manure
  • A method for microbial pretreatment to promote composting of livestock and poultry manure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation of the liquid mycophyllum compact comprises the following steps:

[0039] (1) Activation culture: inoculate Glucophyllum compactus on a solid medium, and culture it statically at 28° C. for 5 days;

[0040] (2) Seed culture: wash the Mycophyllum thallus on the solid medium in step (1) with sterile physiological saline, vortex and oscillate for 5 minutes to obtain a thalline suspension, inoculate into 100ml liquid culture medium, and cultivate The conditions are 28°C shaking culture for 24 hours, the shaking speed is 200rpm, and the seed liquid is obtained;

[0041] (3) Expanded cultivation: inoculate the seed solution obtained in step (2) into 1L liquid culture solution by volume ratio of 10%, and carry out expanded cultivation. The cultivation condition is 28° C. shaking table shaking culture for 48 to 72 hours, and the shaking speed is 200 rpm , and then the obtained liquid inoculum of Glycophyllum compacta was stored at 4°C until use. The content of...

Embodiment 3

[0057] The present embodiment is comparative example, compost raw material composition and method and measuring method are all identical with embodiment 2, but omit microbial pretreatment step (being step (1) and step (2)) in embodiment 2, directly carry out conventional composting as Control group, with embodiment 2 as experimental group, compare the properties of wheat straw before and after pretreatment, and material temperature change, seed germination index, CO 2 Emissions, humus content and microbial populations.

[0058] The basic properties of this experimental example compost raw material are as follows in Table 1:

[0059] Table 1 Basic properties of compost raw materials

[0060]

[0061] Experimental results:

[0062] 1. Liquid chromatography-mass spectrometry (LC-MS) was used to determine the contents of various phenolic substances before and after pretreatment of wheat straw by Glyophyllum compactus. The results are shown in Table 2.

[0063] Table 2 Phenol...

Embodiment 4

[0088] This embodiment also uses the liquid bacterial agent of Myxophyllum compactus in Example 1 to carry out the method for rice straw pretreatment to promote composting of livestock and poultry manure, and the experimental group includes the following steps:

[0089] (1) Pretreatment: Add urea at a mass ratio of 2% to 10 kg of rice straw crushed to a length of 1 to 3 cm, adjust the water content to 80%, and the pH value to 7.5. By 4% mass ratio, the liquid inoculum of Myxophyllum compactus obtained in Example 1 was inoculated into 10 kg of rice straw, fully stirred, and packed into a 50L plastic fermentation tank for solid-state fermentation. The fermentation time was 5 days, and the fermentation temperature was 28° C.;

[0090] (2) Stockpiling: after the pretreatment, mix the pretreated straw and fresh chicken manure with a moisture content of 72% in a mass ratio of 1:5 using manual or mechanical methods, and adjust the moisture content to 55%. / N ratio is 25;

[0091] (3...

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Abstract

The invention discloses a method for microbial pretreatment to promote composting of livestock and poultry manure. Firstly, the moisture content of crop straw is adjusted to 60-80%, the pH value is 6-8, and the amount of urea added is 1-2%. 1-5% liquid inoculum of Glycophyllum compactis to carry out solid-state fermentation on straw for 5 days; mix pre-fermented straw with livestock and poultry manure in a weight ratio of 1:3-1:6, and perform aerobic composting until the material is completely decomposed ; Compared with conventional composting, the present invention can shorten the composting cycle by about 10 days, and reduce CO in the composting process 2 The emission rate is 30-50%, and the humus content is increased by 15-20%. The composting method of the present invention can not only accelerate the degradation and transformation of raw material organic matter, shorten the composting period, but also effectively reduce carbon loss, significantly increase the humus content of compost products, and improve composting efficiency and compost product quality; this method has the advantages of simple operation and environmental friendliness, and can be applied to composting enterprises to produce organic fertilizers using different livestock and poultry manure and straw raw materials.

Description

technical field [0001] The invention relates to a method for microbial pretreatment to promote the composting of livestock and poultry manure, and belongs to the technical field of resource utilization of agricultural solid waste. Background technique [0002] With the rapid development of intensive agriculture in my country, the amount of agricultural organic solid waste such as crop straw and livestock manure is increasing and the processing difficulty is increasing. In 2016, the national output of major crop straws reached 984 million tons, and the output of livestock and poultry manure reached 3.9 billion tons. Unreasonable disposal of agricultural organic solid waste not only causes waste of resources, but also has become one of the main sources of agricultural non-point source pollution in my country. Aerobic composting after mixing straw with livestock and poultry manure is an important way to realize the reduction, treatment and resource utilization of agricultural ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F17/20C05F17/50C05F17/10C05G1/00
CPCC05C9/00C05F17/00C05F3/00C05F11/00C05F11/08Y02W30/40
Inventor 朱宁靳红梅叶小梅奚永兰杜静孔祥平朱燕云
Owner JIANGSU ACAD OF AGRI SCI
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