Microbial organic fertilizer produced by using vinegar residues and production process thereof

Abstract

The invention discloses a microbial organic fertilizer produced by using vinegar residues and a production process thereof, which belong to agricultural fertilizers and production methods thereof. Aiming at the adverse effects, caused by harmful substances in added fly ash, on soil and crop growth in the prior art, and the problems that the vinegar residues are not composted and fermented sufficiently and are difficult to implement factory batch processing and commercial production, the production process produces a particle microbial organic fertilizer by the following steps of: using the vinegar residues as main materials and plant ash as an auxiliary material; adding bacteria into the materials, mixing the materials, and then performing one primary (aerobic) fermentation and two secondary (composting) fermentations on the mixture; and adding at least two types of effective living bacteria into the fermented mixture, wherein the number of the effective living bacteria (cfu) is more than or equal to 0.02 billion per gram; the mixed bacteria ratio is less than 30 percent; the organic matter content is not lower than 50 percent; the total nutrient (N+P2O5+K2O) content is not lower than 6.0 percent; the moisture content is less than 20 percent; the pH value is 5.0 to 8.0; the particle microbial organic fertilizer meets harmless index requirements; and the fineness is more than or equal to 80.0 percent. The microbial organic fertilizer and the production process thereof open up an important way for changing waste into valuable to solve the big problem, which is difficult to treat in the vinegar industry, that the vinegar residues are large in quantity, contain a large amount of fibers, have ultrahigh acidity and can cause environmental pollutions easily.

Description

technical field [0001] The invention belongs to agricultural fertilizer and a production method thereof, in particular to a microbial organic fertilizer produced by using vinegar grains and a production process thereof. Background technique [0002] Vinegar grains are the main by-products of vinegar making, accounting for about 70-80% of the raw materials for making vinegar. It is composed of rice husk fermented by making vinegar and a small amount of bran and rice wine dregs, but it contains 6% to 10% of crude protein, 2% to 5% of crude fat, 20% to 30% of nitrogen-free extract, crude Ash content is 13% to 17%, calcium is 0.25% to 0.45%, phosphorus is 0.16% to 0.37%, and it is rich in nutrients; however, it is a difficult-to-handle organic material with a fiber content of more than 99% and a pH of 4.5-5.5. waste. Due to its large quantity, high fiber content and high acidity, it is easy to cause environmental pollution and has become a difficult problem for the vinegar ind...

AI Technical Summary

Problems solved by technology

[0008] The defect of the manufacturing method of the vinegar grain base in Document 2 is that it is covered with airtight waterproof insulation materials such as plastic cloth, and the composting and fermentation process is only turned once during the composting and fermentation process for dozens of days, which causes the entire fermentation process to be mainly anaerobic fermentation. After the fermentation process, the unconverted fiber content in the vinegar lees matrix formed after the fermentation process is still high, and the moisture content of the finished product is too high to be commercialized directly. It must be dried with considerable energy before it can be used for plant seedlings and soilless cultivation. the matrix

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