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Novel high-efficient chicken manure composting method

A composting method and chicken manure technology are applied in the field of solid waste treatment in farms, which can solve the problems of reducing compost filtrate and other problems, and achieve the effects of shortening compost decomposing time, changing porosity and loose degree, and improving oxygen supply.

Inactive Publication Date: 2018-01-16
INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to adapt to the development trend of large-scale chicken manure treatment, it is very important to realize the harmless treatment and resource utilization of chicken manure, improve the composting efficiency, reduce the release of harmful gases and reduce the seepage of compost filtrate. At present, there is no application of lactic acid in compost Production research reports, and there is no composting method to reduce compost filtrate discharge

Method used

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  • Novel high-efficient chicken manure composting method
  • Novel high-efficient chicken manure composting method
  • Novel high-efficient chicken manure composting method

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Effect test

Embodiment 1

[0029] (1) Purchase food-grade lactic acid with a concentration of 80% (purchased from Henan Jindan Lactic Acid Technology Co., Ltd.) for future use.

[0030](2) Mix 250kg of fresh chicken manure (chicken manure produced by the chicken farm of Hubei Xintianmu Co., Ltd., and the chicken manure is collected through a conveyor belt), 85kg of rice bran (purchased from a rice processing plant in Jinshuizha, Jiangxia) and 5kg of lactic acid. The mass ratio is 50:17:1, the initial C / N is 12.36, and the initial moisture content of compost raw materials is 57.2%. The compost is placed on a cement slope with a ground inclination angle of 0.5°, and the compost filtrate is concentrated and collected at the lower part of the slope. After 20 days of composting, the composting process is completed, and fully decomposed organic fertilizer is obtained. In the first 10 days of composting, turn the pile every day for oxygen supply, and do not turn the pile for the next 10 days.

[0031] (3) On...

Embodiment 2

[0034] Food-grade lactic acid with a concentration of 80% (purchased from Henan Jindan Lactic Acid Technology Co., Ltd.) was purchased for future use. Mix 250kg of fresh chicken manure (chicken manure produced by the chicken farm of Hubei Xintianmu Co., Ltd., which is collected through a conveyor belt), 85kg of rice bran (purchased from Jiangxia Jinshuizha Yiyi Rice Processing Factory) and 15kg of lactic acid. The mass ratio of the three is 50:17:3, the initial C / N is 13.79, and the initial moisture content of compost raw materials is 56.4%. The compost is placed on a cement slope with a ground inclination angle of 0.5°, and the compost filtrate is concentrated and collected at the lower part of the slope. After 16 days of composting, the composting process is completed to obtain fertilizer. In the first 8 days of composting, turn the pile every day for oxygen supply, and do not turn the pile for the next 8 days. On the 0th, 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, and 16th d...

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Abstract

The invention discloses a preparation method of novel composts, and relates to the field of harmless treatment and resource utilization of livestock and poultry manure. The method comprises the following steps: mixing chicken manure with rice bran and lactic acid according to part ratios of 60 to 80 parts, 20 to 40 parts and 0.4 to 3 parts, wherein an initial moisture ratio of a composting raw material is 50 to 70 percent; composting for 16 to 20 days to ensure that a composting process can be completed so as to obtain thoroughly-decomposed organic fertilizer. According to the method disclosedby the invention, the lactic acid is added into a chicken manure-rice bran compost, so that the production of composting filtrate is reduced through hygroscopicity of the lactic acid; due to the hygroscopicity of the lactic acid, a compost body structure such as porosity degree and loosening degree of an inner part of a compost body can be greatly affected, ventilation and oxygen supply in the composting process can be promoted, heat is maintained, and the time required by performing thorough decomposing on the compost is greatly shortened; due to the lactic acid, a PH value of the compost iseffectively reduced, and the release of odor substances such as ammonia gas is reduced. In addition, as an organic acid, the lactic acid can be utilized by microorganisms, so that degradation of thelactic acid is realized, a final product is carbon dioxide and water, and secondary pollution is avoided. The method disclosed by the invention is environmentally friendly and easy to operate; moreover, the using cost is reasonable and the practical value is high.

Description

technical field [0001] The invention belongs to the technical field of farm solid waste treatment, and relates to a livestock and poultry manure composting method, in particular to a method for reducing chicken manure composting filtrate, reducing odor emission, and accelerating the maturity of organic manure. Background technique [0002] With the continuous improvement of the scale and facilities of my country's animal husbandry, the scale of livestock and poultry breeding has gradually expanded. Therefore, the centralized treatment and resource utilization of livestock and poultry manure has become an important issue facing large-scale livestock and poultry farming. At present, the annual production of commercial broiler chickens in my country is about 8.2 billion. Based on the average fresh manure produced by each broiler chicken, the annual production of commercial broiler chicken manure in my country has reached 24.6 million tons at this stage. In 2016, there were abou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F3/00C05F15/00C05F17/00
CPCY02A40/20Y02W30/40
Inventor 张昊皮劲松陈芳杜金平申杰梁振华潘爱銮吴艳蒲跃进孙静袁杰
Owner INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI
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