Process method for preparing organic liquid fertilizer by using leather production lime plte wastes

Abstract

The invention relates to a process method for preparing organic liquid fertilizer by using leather production lime plte wastes. The process method comprises the following steps of firstly, cleaning leather wastes, adding water of which the weight proportion is identical with that of the leather wastes, then adding biological enzyme accounting for 0.1 to 1 percent by weight of leather wastes, heating to 30 to 60DEG C, maintaining the enzymolysis time, and controlling for more than 60 hours until enzymolysis is full, thus obtaining enzymatic hydrolysate for later use; secondly, adding a microbial agent accounting for 0.5 to 0.8 percent by weight of the enzymatic hydrolysate to obtain fermentation liquor for later use; thirdly, sequentially adding boronic acid, zinc sulfate, ferrous sulfate, magnesium sulfate and calcium nitrate into the fermentation liquor obtained in the second step, and uniformly mixing to obtain the organic liquid fertilizer. According to the process method disclosed by the invention, a leather waste extract accounts for 40 percent or over 40 percent of finished product fertilizer, the treating and utilizing capabilities of the leather wastes can be greatly improved, and the technical blank at home and abroad is filled up.

Description

technical field [0001] The invention relates to a process method for preparing organic liquid fertilizer, in particular to a method for preparing organic liquid fertilizer by using tanning gray hide waste, which belongs to the technical field of organic liquid fertilizer production technology. Background technique [0002] At present, although the primary extract of leather waste contains more organic matter such as collagen peptides and amino acids, it is a better raw material for the production of fertilizers. However, because of its low degree of hydrolysis, poor fertilizer efficiency, and easy corruption and odor, it cannot directly enter the market. Therefore, organic materials such as silkworm excrement and mushroom slag can only be used to absorb these primary extracts and sold in the form of solid organic fertilizers. However, the proportion of these added organic materials accounts for more than 80% of the finished fertilizer, and the leather waste extract only acc...

AI Technical Summary

Problems solved by technology

However, the proportion of these added organic materials accounts for more than 80% of the finished fertilizer, and the leather waste extract only accounts for 15-20%, which weakens the significance and effect of green utilization of leather waste

[0003] Although the peptide proteins and amino acids in leather extracts have a good effect on the growth and development of crops, they are still far from meeting the current market demand.

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