Biogas residue treatment method and process

Abstract

The invention discloses a biogas residue treatment method and process, and belongs to the technical field of biogas residue treatment. The biogas residue treatment method and process comprise the following steps: moisture pre-test of biogas residue; mixing; moisture detection of the biogas residue; stacking: stacking the biogas residue on a skeleton with a height of 1.2 m and a width of 2 m; fermentation: carrying out fermentation for 1-2 days at a temperature of 60-65 DEG C, and carrying out standing and warming for three days; and granulation: after stacking and fermentation for 15-20 days,pulverizing the biogas residue by using a semi-wet material pulverizer, then carrying out stirring by using a mixer, entering a granulation mechanism to prepare particles, carrying out drying after the particles are taken out, screening the particles through a screening machine, and packaging the qualified products. Certain bio-fermenting bacteria are mixed into the skeleton for stacking; when thebiogas residue enters the formal fermentation period after the stacking, along with the continuous temperature rise of the biogas residue, the skeleton is gradually degraded and the fungi in the bio-fermenting bacteria are gradually active and mixed with the degraded skeleton into the biogas residue, thereby greatly improving the fermentation quality of the biogas residue.

Description

technical field [0001] The invention relates to the technical field of biogas residue treatment, and more specifically, to a method and process for processing biogas residue. Background technique [0002] During the biogas fermentation process, since the biogas digester has fresh human and animal feces entering the pond for fermentation every day, when the biogas residue is used, due to the short time for some feces to enter the pond, many parasite eggs deposited in the biogas residue are still active. Can cause disease, therefore, the biogas residue must be treated harmlessly before use. For the harmless treatment of biogas residues, generally, aerobic composting and sealing storage of appropriate amount of chemical fertilizers can be adopted in the biogas residues, and good sanitation effects can be achieved. [0003] The aerobic composting method is to stack biogas residues, rice straw, pig manure, etc. in layers and seal them. When the temperature in the pile reaches ab...

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Problems solved by technology

[0004] The general biogas residue treatment method is to stack the biogas residue after mixing with the biological fermentation agent, and enter the formal fermentation period after stacking. There is a certain time interval between the formal fermentation and the mixing of the biological fermentation agent. , Biogas residues need to go through the stacking process. During the stacking process, the temperature of the biogas residues is variable, and the variable temperature will affect the function of the biological fermentation agent, and at the same time affect the quality of the biogas residue fermentation

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