Unlock instant, AI-driven research and patent intelligence for your innovation.

Rapid aerobic fermentation method of biogas residues

An aerobic fermentation and biogas residue technology is applied in the field of agricultural waste recycling, which can solve the problems of low aerobic fermentation efficiency, short duration of high temperature period, waste of resources, etc., so as to shorten the aerobic fermentation period and shorten the cooling period. time, the effect of prolonging the duration

Inactive Publication Date: 2018-08-10
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the aerobic fermentation technology of biogas residues has a long heating period of aerobic fermentation, and the heating time of some experiments is as long as 2-3 days, or even 7 days; the duration of the high temperature period is not long, and it has not reached the national standard of organic fertilizer NY525-2012; The cooling period is long, it takes 12 days or longer to drop from 50°C to room temperature, and the aerobic fermentation cycle is long. The aerobic fermentation cycle in most experiments is more than 30 days, and some have a cycle as long as 60 days, resulting in aerobic fermentation. Inefficiency, waste of resources

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rapid aerobic fermentation method of biogas residues
  • Rapid aerobic fermentation method of biogas residues
  • Rapid aerobic fermentation method of biogas residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] The biogas residue in this example is taken from a biogas project in Beijing. The livestock and poultry manure is pig manure from a pig farm in Beijing. The straw is corn straw from a farmland in Beijing. The charcoal is made by pyrolysis of fruit wood at 550°C for 2 hours. The four materials are mixed into raw materials according to different mixing ratios, and the mixing is mixed with a mixer. The quality of each raw material required for different treatments is shown in Table 1.

[0024] Table 1 The quality of raw materials required for different treatments

[0025]

[0026] Put the mixed material into the fermenter, and set the ventilation volume to 0.41-0.42m 3 min -1 m -3 , ventilate in stages, the first stage ventilation stack entry temperature is 15°C, ventilate for 5min, stop for 55min; the second stage ventilate stack entry temperature is 35°C, ventilate for 5min, stop for 25min; the third stage ventilate stack entry temperature is 55°C, ventilate for ...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a rapid aerobic fermentation method of biogas residues and belongs to the technical field of recycling of agricultural wastes. The rapid aerobic fermentation method mainly comprises optimization of main technological parameters in an aerobic fermentation process: a mixing ratio of aerobic fermentation materials, a C / N ratio, initial moisture content, ventilation parameters of the aerobic fermentation process, turning time and the number of times of turning. By optimizing the technological parameters, the temperature rising time of aerobic fermentation of the biogas residues is shortened to 20 hours, the cooling time is shortened to 10 days and an aerobic fermentation period is shortened to 20 days; the rapid aerobic fermentation efficiency of the biogas residues is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of agricultural waste, and in particular relates to a rapid aerobic fermentation method for biogas residues. Background technique [0002] Livestock and poultry manure and crop stalks are the main agricultural wastes in my country, with large output, many types, wide distribution, and obvious differences in regional distribution. As the most popular biogas fermentation technology for processing agricultural waste, if the biogas residue produced by the biogas fermentation technology is not treated and used directly, the heavy metals, antibiotics, germs and other pollutants contained in it will cause secondary pollution to the environment. Aerobic fermentation is an effective means of harmless and resourceful agricultural waste, which has been widely studied and applied at home and abroad for a long time. A number of studies have shown that the aerobic fermentation process can passivat...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F17/00
CPCC05D9/00C05F17/00C05F3/00C05F9/04C05F11/00Y02W30/40
Inventor 沈玉君孟海波隋斌张曦周海宾丁京涛郑圣尉袁汝玲
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI