Method for preparing organic liquid fertilizer by using animal carcasses

Abstract

The present invention discloses a method for preparing an organic liquid fertilizer by using animal carcasses. The method comprises: (1) collecting various kinds of livestock and poultry carcasses, placing into a refrigerating cabinet, and storing; (2) crushing the frozen animal carcasses into appropriate blocks; (3) conveying the crushed animal carcass blocks into an acidolysis kettle through a conveyor, adding an organic acid, and carrying out acidolysis liquefaction on the animal carcasses; (4) separating and removing the upper layer grease of the acidolysis liquid, adding an alkali to the remaining lower layer amino acid-containing liquid, and neutralizing; and (5) adding a certain amount of trace elements to the neutralized liquid, and chelating to prepare the amino acid trace element water soluble fertilizer. According to the present invention, the animal carcasses are subjected to the acidolysis with the organic acid, and the trace elements are added to prepare the trace element water-soluble fertilizer, such that the animal carcasses can be effectively and safely treated; and the treatment method has characteristics of harmlessness, economy and environmental protection, and can effectively solve the animal carcass treatment problem so as to achieve the harmless treatment and the resource utilization of the animal carcasses.

Description

technical field [0001] The invention relates to a method for preparing fertilizer by using animal corpses, in particular to a method for preparing organic liquid fertilizer by using animal corpses, and belongs to the technical field of animal corpse treatment. Background technique [0002] Raising animals under intensive conditions makes the animals more vulnerable, their own resistance is in a sub-healthy state with very low resistance, and objectively there is a certain proportion of deaths. Arbitrary disposal of sick and dead animals not only occupies and consumes resources, but may also cause environmental pollution and even cause serious public health incidents. Therefore, it is particularly important to safely handle sick and dead animals. The processing methods for animal carcasses mainly include incineration, deep burial, composting, biodegradation and hydrolysis in the prior art. These treatment methods all have different degrees of defects. The incineration method...

AI Technical Summary

Problems solved by technology

These treatment methods all have different degrees of defects. The incineration method and deep burial method are not thorough in the treatment of animal carcasses, which are likely to cause secondary pollution and damage the environment; Animals; the biodegradation process is complex and the operating cost is high; the hydrolysis method, the existing hydrolysis method is high-temperature inorganic acid hydrolysis, the hydrolysis temperature is high, the processing time is long, and the post-processing process is complicated

In addition, the above methods all have different degrees of waste of resources