Preparation method of biogas fermentation ammonium phosphate compound fertilizer

Abstract

The invention discloses a preparation method of a biogas fermentation ammonium phosphate compound fertilizer and relates to the technical field of preparation of fertilizers. The preparation method comprises the following steps: stacking fermentation residues in a biogas digester and organic waste to form the shape of a round table; and adding a calcium-magnesium phosphate fertilizer and concentrated ammonia water, drying and granulating. The preparation method provided by the invention has the beneficial effects that in the preparation method provided by the invention, the fertilizer prepared from the fermentation residues of biogas can not only turn the fermentation residues into treasure; and simultaneously, the prepared fertilizer has high content of nutrients in actual application, and the method is also simple in the actual production of the fertilizer.

Description

technical field [0001] The invention relates to the technical field of fertilizer preparation, in particular to a preparation method of marsh ammonium phosphate compound fertilizer. Background technique [0002] Biogas, as the name suggests, is the gas in the swamp. People often see that in swamps, sewers or cesspools, there are bubbles coming out. If we strike a match, it can be ignited. This is the naturally occurring methane. Biogas is a kind of combustible gas produced by the fermentation of microorganisms in the isolation of air and at a suitable temperature and pH value. The content of non-oxygen in the biogas is very high, and biogas belongs to secondary Energy, and it is a renewable energy. In the actual fermentation of biogas, there are a lot of fermentation residues. These residues are actually more valuable fertilizers on the market. However, the current technology is simply to apply them in the field and cannot Reasonably reflect the beneficial value in the fer...

AI Technical Summary

Problems solved by technology

Biogas is a kind of combustible gas produced by the fermentation of microorganisms in isolation from the air and at a suitable temperature and pH value. The content of non-oxygen in the biogas is very high, and biogas belongs to the secondary Energy, and it is a renewable energy. In the actual fermentation of biogas, there are a lot of fermentation residues. These residues are actually more valuable fertilizers on the market. However, the current technology is simply to apply them in the field and cannot Reasonably reflect the beneficial value in the fermentation residue, wasting resources