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Superhigh-temperature composting method for livestock and poultry manure

A technology of livestock and poultry manure and composting method is applied in the field of resource utilization of livestock and poultry manure to achieve the effects of convenient transportation, high nitrogen utilization rate and soil organic matter improvement.

Inactive Publication Date: 2017-09-15
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports on the use of ultra-high temperature composting methods to treat livestock and poultry manure

Method used

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  • Superhigh-temperature composting method for livestock and poultry manure
  • Superhigh-temperature composting method for livestock and poultry manure
  • Superhigh-temperature composting method for livestock and poultry manure

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The determination of embodiment 1 optimum strain proportioning

[0033] In this example, the 5 species of bacteria are: Bacillus thermourea A, Geobacillus B, Bacillus thermodenitrophilus C, Halothermophilus rubrum D and Thermus thermophilus E, the organic material decomposing agent mentioned above The preparation includes the following steps:

[0034] (1) Bacillus thermourea A, Geobacillus B, Bacillus thermodenitrophilus C, Halothermophilus rubrum D and Thermophilus thermophilus E were respectively inoculated in the fermentation medium and cultured, A, B, C, D, and E strains were cultured at 65°C, 70°C, 60°C, 75°C, and 75°C in sequence, and the culture time was 24 hours;

[0035] (2) The 5 bacteria liquids obtained by the above-mentioned steps (1) were cultured, and three combinations were carried out according to the number of live bacteria of each strain (see Table 1), and three groups of mixed fermentation liquids with different ratios were obtained, according to th...

Embodiment 2

[0044] The ultra-high temperature composting of embodiment 2 livestock and poultry manure

[0045] Ultra-high temperature composting method of the experimental group:

[0046] 1) Preparation of organic material decomposing agent: the solid organic material decomposing agent obtained in Example 1 Group III is used in this embodiment;

[0047] 2) Preparation of fermentation raw materials: In terms of mass percentage, mix 85% of fresh chicken manure and 15% of rice straw to obtain the original material, adjust the water content of the original material to 55%, then add an organic material decomposing agent, mix evenly, and obtain Fermented raw material; in this fermented raw material, the mass percentage that the organic material decomposing agent accounts for is 0.1%; 3) the fermented raw material inoculated with the organic material decomposing agent obtained in step 2) is transferred to a composting device (a conventional composting device in the art is can), within 1-2 hours...

Embodiment 3

[0058] Embodiment 3 pot test

[0059] This embodiment is carried out in the pilot base of Jiangsu Provincial Academy of Agricultural Sciences Circular Agriculture Research;

[0060] The test material is Chinese cabbage, and the variety is Shanghai Qing.

[0061] There are 4 treatments in the test:

[0062] Namely T1, no fertilization;

[0063] T2, purified fertilizer (Sateli compound fertilizer N:P2O5:K2O=15:15:15, purchased from Zhongnong New Fertilizer Technology Co., Ltd.);

[0064] T3, Ordinary organic fertilizer (prepared according to the traditional process, the fermentation raw materials are livestock and poultry manure and crop straw, for details, see: Ma Huailiang, Xu Xiuhong. High-temperature composting treatment technology of livestock and poultry manure. Journal of Northeast Agricultural University, 2005, 36(4): 536~540);

[0065] T4 is the ultra-high temperature chicken manure organic fertilizer obtained by the experimental group of Example 3.

[0066] Each t...

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Abstract

The invention discloses a superhigh-temperature composting method for livestock and poultry manure. The method comprises the following steps: adjusting the water content of livestock and poultry manure to 45 to 60% by using a conditioning agent and then adding a decomposition bacterial strain for organic materials; then heating a mixed material, allowing the temperature of the mixed material to rise to 80 to 85 DEG C within 1 to 2 h and maintaining the superhigh temperature for 16 to 24 h to accomplish composting fermentation, wherein a high-pressure fan carries out aeration or stirring on the material for oxygen supply during fermentation; and after completion of fermentation, allowing the water content of an obtained composting product to fall to 20 to 30%, wherein the composting product allows the germination rate of seeds to reach 95% or above. The composting method provided by the invention can realize rapid decomposition of livestock and poultry manure, and the prepared composting product is thorough in inactivation of pathogenic organisms and low in loss of carbon and nitrogen and has substantially better fertilizer efficiency compared with traditional composting products.

Description

technical field [0001] The invention relates to a rapid composting treatment method of livestock and poultry manure, which belongs to the technical field of resource utilization of livestock and poultry manure, and can be specially used for rapid and harmless treatment and fertilizer utilization of livestock and poultry manure. Background technique [0002] With the rapid development of large-scale livestock and poultry breeding industry in my country, the environmental pollution caused by concentrated discharge of livestock and poultry manure is becoming more and more serious. According to statistics, in 2010, the chemical oxygen demand (COD) and nitrogen and phosphorus emissions from the national livestock and poultry breeding industry accounted for 45% and 25% of the total national emissions, and accounted for 95% and 79% of agricultural sources, which is The main source of non-point source pollution in rural areas. A large amount of untreated livestock and poultry manur...

Claims

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Application Information

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IPC IPC(8): C05F15/00C05F17/00
CPCC05F3/00C05F17/20C05F17/60C05F11/00C05F11/08Y02W30/40
Inventor 黄红英曹云钱玉婷徐跃定靳红梅常志州
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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