Biological organic fertilizer prepared by aerobic fermentation of biogas residue and preparation method thereof

Abstract

The invention provides a biological organic fertilizer prepared by aerobic fermentation of a biogas residue and a preparation method thereof. The preparation method comprises the steps: mixing the biogas residue and a swelling agent to form a fermentation raw material, inoculating a compound microbial agent in the fermentation raw material, uniformly mixing for fermenting, and adding urea, diammonium phosphate, a potassium chloride inorganic salt, brown nitrogen-fixing bacteria, mycorrhiza fungi, silicate bacteria, photosynthetic bacteria acetic bacteria, bifidobacterium, and saccharomycetes after the fermentation is completed to prepare the biological organic fertilizer, wherein the compound microbial agent comprises strains of bacillus, pseudomonas, staphylococcus, streptomyces, penicillium, aspergillus and trichoderma. The compound microbial agent prepared by using the biological organic fertilizer has a pertinence to aerobic fermentation of the biogas residue, and is capable of effectively increasing the fermentation rate of the biogas residue, shortening the fermentation time and realizing high-additional value production, innocent treatment and recycling of the biogas residue; and the problem of resources and environment of villages and small towns is solved, and the rapid development of construction of new countryside and towns and cities can be promoted.

Description

technical field [0001] The invention belongs to the field of preparing bio-organic fertilizer by using compound microbial bacterial agent, and in particular relates to a bio-organic fertilizer prepared by aerobic fermentation of biogas residue and a preparation method thereof. Background technique [0002] It is very common in my country to use agricultural waste to directly ferment biogas, but the use of biogas residue is too rough and simple, and it also pollutes the environment. As for organic waste in cities, domestically, oil is mostly produced into biodiesel, water is treated into reclaimed water for reuse, and solid residues are anaerobically fermented to generate biogas for power generation. However, there is no better utilization method for biogas residue. Some studies believe that biogas residues can be processed in two ways: one is to make feed rich in biological protein through a special disinfection process, but because of its special properties, there are cert...

AI Technical Summary

Problems solved by technology

At present, there are few studies on biogas residue aerobic fermentation to produce organic fertilizer. Most of them have long fermentation time and are not targeted, and there are no industrialized production methods and steps for the production of bio-organic fertilizer from biogas residue, so that it is impossible to use biogas residue rationally and efficiently. Leading to a large amount of biogas waste, polluting the environment and endangering human health