Biogas residue combined aerobic composting method

An aerobic composting and biogas residue technology, which is applied in the fields of organic fertilizers, fertilization devices, preparation of organic fertilizers, etc., can solve the problems of energy consumption, air pollution, nutrient loss, etc., achieve energy saving, meet aerobic needs, optimize Effects of process parameters

Inactive Publication Date: 2015-10-28
CHINA AGRI UNIV
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Problems solved by technology

In addition, the aerobic composting process advocates forced ventilation, which is likely to cause a large amount of energy consumption, and at the same time blows a large amount of nitrogen-containing and sulfur-containing compounds into the atmosphere, which not only causes air pollution, but also causes nutrient loss, and also inhibits the production of cellulose, etc. Decomposition of Refractory Substances

Method used

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  • Biogas residue combined aerobic composting method
  • Biogas residue combined aerobic composting method
  • Biogas residue combined aerobic composting method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1, chicken manure biogas residue combined aerobic composting:

[0032] according to figure 1 The process scheme and oxygen supply feedback mode diagram of the biogas residue combined with aerobic composting method shown are combined with aerobic composting of chicken manure biogas residue:

[0033] 1. Analysis of the basic characteristics of chicken manure biogas residue and aerobic composting accessories and the corresponding material ratio:

[0034] The chicken manure biogas residue was obtained from the biogas station of Liuying Village, Daxing District, Beijing, after anaerobic fermentation for 15-20 days after solid-liquid separation. The measured organic matter content was less than 65%. The chicken manure biogas residue after anaerobic fermentation was used As the main raw material, pig manure (taken from the Changping Experimental Station of the Chinese Academy of Agricultural Sciences) is used as the auxiliary material, mushroom residue (taken from ...

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Abstract

The invention discloses a biogas residue combined aerobic composting method which comprises the following steps: 1) regulating biogas residues and aerobic composting auxiliary materials according to the basic physical and chemical properties of the biogas residues and aerobic composting auxiliary materials to obtain a mixed material; and 2) carrying out compost treatment on the mixed material in the step 1) in a composting system to obtain compost. Based on a sensing and monitoring system, automatic optimization of ventilation and oxygen supply in the composting process is realized. The spatial gradient difference of a pile body is judged according to real-time acquired temperature and oxygen data for time and proper stirring, so that uniform gas distribution and fermentation are facilitated. The content of organic matters of the biogas is differentiated, different aerobic composting proportioning schemes are carried out hereby, and finally cyclic utilization of efficiency, energy conservation and emission reduction of the biogas is realized by adopting the intelligent aerobic composting system.

Description

technical field [0001] The invention belongs to the technical field of organic fertilizer preparation, and in particular relates to a combined aerobic composting method of biogas residues. Background technique [0002] With the rapid development of intensive livestock and poultry breeding, livestock and poultry manure has become one of the pollution sources of human living environment, and has been paid close attention by people. In the annual output of livestock and poultry manure in my country, the manure produced by large-scale farming accounts for about 40% of the solid waste. Large amounts of manure, if discharged into the environment without treatment, can cause environmental problems such as foul odors. In addition, livestock manure is also a resource. If it is not used reasonably, it will not only cause secondary pollution to the environment, but also lead to a large amount of waste of organic resources. In addition to livestock and poultry manure, biogas residue p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F15/00
CPCY02W30/40
Inventor 黄光群黄晶韩鲁佳张阳葛金怡
Owner CHINA AGRI UNIV
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