KR-20260065278-A - A method of manufacturing compost using animal manure

KR20260065278AKR 20260065278 AKR20260065278 AKR 20260065278AKR-20260065278-A

Abstract

The present invention relates to a method for producing compost by fermenting livestock manure discharged from a livestock barn, and has the effect of increasing the amount of compost produced from livestock manure depending on the pretreatment and fermentation environmental conditions of the livestock manure.

Inventors

김시현

Assignees

김시현

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (4)

A step of pre-treating livestock manure to produce a preliminary fermented product; A step of producing compost by fermenting the above-mentioned pre-fermented product in a sealed environment; and including the step of removing the above compost, Method for manufacturing compost using livestock manure.
In paragraph 1, The moisture content of the above-mentioned pre-fermented product is 60% or less, Method for manufacturing compost using livestock manure.
In paragraph 1, The above-mentioned pre-fermented product is prepared by stirring the above-mentioned livestock manure, and the stirring of the above-mentioned livestock manure is performed in an environment where it can come into contact with external air. Method for manufacturing compost using livestock manure.
In paragraph 1, The above pretreatment involves adding a microbial additive, wherein the microbial additive comprises one or more selected from the group consisting of Bacillus subtilis, actinomycetes, and Pseudomonas fluorescens. Method for manufacturing compost using livestock manure.

Description

A method of manufacturing compost using animal manure The present invention relates to a method for manufacturing compost, and more specifically, to a method for manufacturing compost by fermenting livestock manure discharged from a livestock barn. The process of composting livestock manure generated in livestock barns involves collecting or gathering the manure from the barn, storing it in a storage area, and then producing compost as a useful fertilizer through fermentation using machinery or devices. However, during the composting process, livestock manure collected from barns has a high moisture content. This not only causes significant time and cost consumption during the fermentation process but also reduces the yield of compost relative to the amount of manure input. Additionally, foul odors may be generated during the fermentation process, potentially leading to environmental pollution and complaints from neighboring areas. Meanwhile, in the composting process through fermentation, using microorganisms can increase fermentation time or compost yield; however, not only do costs associated with using microorganisms increase, but problems such as microorganism management and the generation of additional odors still exist. Figure 1 illustrates a process flow diagram of a method for manufacturing livestock manure according to one embodiment of the present invention. FIG. 2 is a schematic diagram of a control means in a process for manufacturing livestock manure according to one embodiment of the present invention. Figure 3 illustrates the change in moisture content when converting livestock manure into a pre-fermented product according to one embodiment of the present invention. Hereinafter, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. FIG. 1 illustrates a process flow diagram for a method of manufacturing compost using livestock manure according to one embodiment of the present invention. Referring to FIG. 1, a method for manufacturing compost using livestock manure according to one embodiment of the present invention comprises the steps of: pre-treating livestock manure to produce a preliminary fermented product (S100); fermenting the preliminary fermented product in a sealed environment to produce compost (S200); and discharging the compost (S300). S100 is a step of producing a preliminary fermented product from livestock manure, and more specifically, may control the moisture content of the preliminary fermented product by controlling the moisture content of the livestock manure. The above livestock manure is excrement and urine discharged from animals raised in livestock barns, and may contain moisture. The above livestock manure may be cow manure, pig manure, and chicken manure, but is not limited to these as long as the animals can be raised in livestock barns. The above livestock manure may be organic waste and may contain various organic substances and may contain aerobic microorganisms. The above livestock manure may be collected from a livestock barn and accumulated in a storage facility equipped with a predetermined space. Accordingly, the livestock manure accumulated in the storage facility may have varying moisture content depending on the time of input. Consequently, the livestock manure initially input is located at the bottom of the storage facility, and as water settles, the moisture content of the manure located at the bottom of the facility increases significantly, which not only generates leachate but also hinders uniform fermentation during the subsequent fermentation process. The above-mentioned pre-fermented product may have a controlled moisture content, and the moisture content of the above-mentioned pre-fermented product may be 60% or less. In this case, the moisture content may be the mass of water excluding solids relative to the total mass of the livestock manure. The above-mentioned pre-fermented product may be prepared by stirring the above-mentioned livestock manure, and through stirring, moisture contained in the above-mentioned livestock manure may be evaporated and the moisture content of the above-mentioned livestock manure may be made uniform. The stirring of the livestock manure may be performed in an environment where it can come into contact with the outside atmosphere, and as an example, the storage container may have an open top. By making the stirring possible to come into contact with the outside atmosphere, air (oxygen) can be forcibly blown into the microorganisms present in the livestock manure to promote aerobic fermentation, and the moisture content of the livestock manure can be reduced. The above stirring may involve stirring the livestock manure accumulated in the storage unit up and down, and thereby swapping the positions of the livestock