Detonating agent used for aerobic fermentation of biogas residue and preparation method thereof

Abstract

The invention provides a detonating agent used for aerobic fermentation of biogas residue and a preparation method thereof. The detonating agent comprises a compound microbial agent, charcoal, wood vinegar and a microorganism culture medium. The compound microbial agent is prepared and obtained through mixed culture of different species of microbial agents; and the microbial agent comprises bacillus, lactic acid bacteria, enterococcus, bacillus brevis, myroides odoratimimus and bacillus aceticus. Aiming at the bottleneck problems of key technology such as slow heating rate, short high temperature period and disadvantage of thorough decomposition during the aerobic fermentation process of biogas residue, the change of organic matters and the change of microbial community structures in the aerobic fermentation process of biogas residue are combined with physical, chemical and microbiological principles, and the detonating agent which is environmentally-friendly, high in efficiency and low in cost, and is used for aerobic fermentation of biogas residue is researched and developed, so that the temperature rise time for aerobic fermentation of biogas residue is shortened, the high temperature period is prolonged, the product quality of aerobic fermentation is improved, the aerobic fermentation efficiency of biogas residue is improved, and technical support is provided for treatmentand resource utilization of biogas residue.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of agricultural waste, and in particular relates to a primer for aerobic fermentation with biogas residue as a main raw material and a preparation method thereof. Background technique [0002] Aerobic fermentation is an effective way of resource utilization of organic waste. Its essence is to make organic matter mineralized, humified and harmless through high-temperature fermentation under the action of microorganisms under certain conditions of moisture, C / N ratio and ventilation. The process of becoming decomposed fertilizer. The characteristics of fermentation raw materials, C / N ratio, moisture, temperature, ventilation conditions, pH value, etc. are closely related to the growth and activity of aerobic fermentation microorganisms, which in turn affect the efficiency of aerobic fermentation and the maturity of fermented products. A complete aerobic fermentation process can be divi...

AI Technical Summary

Problems solved by technology

[0004] Biogas residue is rich in nutrients and is an excellent raw material for organic fertilizer. However, biogas residue is mainly composed of cellulose and other refractory organic matter, with low C / N ratio, high moisture content, and small porosity, which lead to aerobic fermentation of biogas residue. The heating rate of the process is slow, the high temperature period is short, it is not conducive to decomposing, and the quality of aerobic fermentation products is poor, etc.

Patent CN201810265985.9 provides a rapid aerobic fermentation method for biogas residues, but in this method, the aerobic fermentation process has large ventilation and high energy consumption, which is not conducive to the large-scale treatment of biogas residues aerobic fermentation

Studies have shown that in the aerobic fermentation process with biogas residue as the main raw material, the aerobic fermentation mixture can heat up quickly within 24 hours in summer, but the temperature of the material in winter rises slowly.

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