JP3145815B2 - Manure processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for deodorizing manure and a deodorizing agent for manure.

[0002]

2. Description of the Related Art In breeding animals such as livestock and poultry, purification of the breeding environment by manure treatment is one of the important requirements along with feeding. Hazardous gases generated in animal breeding environments such as livestock and poultry include ammonia, carbon dioxide, carbon monoxide, sulfur dioxide, hydrogen sulfide, methane, etc. Occurrence and deterioration of the rearing environment due to the peculiar and irritating odor cause a great influence on animal health and growth. For example, it is known that when poultry and the like are raised in an environment containing a large amount of ammonia gas, the mucous membrane of the trachea is affected, and congestion of the lung, hemorrhagic emphysema, edema and the like occur.

[0003] By the way, as a simple method for deodorizing livestock and poultry pens, it has been known to use lime and to spray sawdust generated when sawing wood onto the floor of the pens. I have. However, lime is a fairly strong alkaline substance, and its use for deodorization in barns is not desirable for animal health. In addition, although sawdust is safe, its amount is small due to recent changes in the construction style of houses and the like, and it is difficult to obtain it regularly, especially in recent large-scale poultry and livestock industries. It is practically almost impossible to secure a large amount of sawdust in a stable manner.

[0004] On the other hand, coffee consumption has become extremely high in recent years, and in particular, instant coffee is widely used because of its simplicity and the like. Instant coffee is obtained by extracting crushed roasted coffee beans with a liquid such as water or hot water, after which a large amount of coffee residue as an extraction residue is generated.

Since dried coffee grounds contains about 10% of crude protein and about 20% of crude fat, it has been attempted to use it as feed for livestock and the like. Because the digestibility is extremely bad including before and after
It is unsuitable as feed as it is. In addition, if a large amount of coffee grounds is discarded as it is, it may lead to pollution and its handling is difficult.

[0006]

Under the circumstances described above, the present inventors can safely and simply and economically carry out deodorizing treatment of excreta excreted by animals, particularly in a livestock barn for raising livestock and poultry. For the purpose of developing a method that can be performed, studies have been continued on various aspects such as types of deodorants, breeding facilities, and environmental purification facilities. Then, they conceived to use coffee grounds, the handling of which has been difficult, and when they actually used coffee grounds, especially coffee grounds and sawdust for deodorization in livestock barns, the deodorizing performance was high and extremely effective. Was found to be.

[0007] The present inventors conducted a deodorization test on manure in the same manner using activated carbon, which has been widely known as a deodorant (adsorbent), in parallel with the deodorization test using coffee grounds.
In the case of activated carbon, the deodorizing effect of manure is extremely low, and from this point, the high deodorizing effect of manure produced by coffee grounds, which has been rarely used as a deodorant, is completely unexpected. Was.

[0008] That is, the present invention is a method for treating manure, which comprises mixing or spraying coffee grounds and sawdust on manure to perform a deodorizing treatment.

Further, the present invention is a deodorizing agent for manure, which comprises at least a part of coffee grounds and sawdust.

As is well known, there are various types of coffee beans depending on the place of origin and the like, and the composition and the like of the coffee grounds by-produced therefrom are slightly different depending on the types of coffee beans and the like. Also,
Depending on the method and conditions of roasting coffee beans, the method of extracting coffee from roasted and ground coffee beans, etc.,
The composition and the like of the coffee residue remaining later are slightly different. However, in the present invention, any coffee grounds after coffee has been extracted from coffee beans can be used, and the origin, composition, process of by-producing coffee grounds, and the like are not limited. The coffee grounds used in the present invention may be either a large-scale by-product or a small-scale by-product.

The particle size of the coffee grounds varies from fine to slightly larger depending on the degree of pulverization before extracting the coffee, and any of them can be used in the present invention. It is preferable to use one having a size within the range of 5 mm from the viewpoints of deodorizing effect, ease of mixing and spraying with manure, and handling properties after mixing or spraying with manure.

Further, the deodorizing effect of coffee grounds is kept high,
In addition, in order to improve the storage stability without causing mold or rot, it is desirable to dry the coffee grounds so that the water content thereof is 40% by weight or less. The lower limit of the water content is not particularly limited, and the lower the water content, the higher the deodorizing effect and the better the preservability. However, from the viewpoint of fuel efficiency, labor, and time required for drying, the water content of the coffee grounds is reduced to about 1
It is preferable to set it to about 0 to 40% by weight. Drying can be performed by an appropriate method such as heat drying or solar drying.

The present invention uses sawdust together with coffee grounds for deodorizing feces and urine, and may use other materials such as porous minerals as needed. The deodorizing method of the present invention using sawdust with coffee grounds and the deodorant of the present invention containing sawdust with coffee grounds have a higher deodorizing effect and are easier to handle than coffee grounds alone. In addition, a high deodorizing effect can be obtained by spraying coffee grounds after spraying sawdust powder.

The deodorant containing coffee grounds and sawdust of the present invention was initially developed for the purpose of deodorizing manure in livestock pens and the like for raising livestock and poultry, but is not limited thereto. Livestock such as cattle, horses, sheep, goats, poultry such as chickens, quails, ducks, ducks, turkeys, pets such as dogs and cats, excreta excreted by various animals such as elephants, tigers, lions, etc., and humans It can be used effectively for deodorizing all manure such as manure excreted.

The method for deodorizing manure using the deodorant of the present invention is not limited. For example, the present invention is applied to a floor of an animal breeding environment such as a barn where manure is excreted. A method of breeding animals by simultaneously laying a deodorant to a predetermined thickness to deodorize manure; spraying the deodorant of the present invention on the floor of an animal breeding environment where manure is excreted, and then together with the manure How to collect and deodorize;
A method of deodorizing by mixing or spraying the deodorant of the present invention into a manure reservoir; a method of preparing a toilet filled or spread with the deodorant of the present invention and excreting pets such as cats and dogs there. Can be.

The amount of the deodorant of the present invention mixed or applied to manure is not particularly limited, and can be appropriately adjusted according to the type and state of manure, the deodorizing treatment environment, and the like. For example, when coffee grounds having a water content of 40% is used, it is usually preferable to mix or spray the coffee grounds so that the ratio of the coffee grounds is about 2 parts or more per 100 parts by weight of manure (hereinafter simply referred to as part). . The greater the amount of coffee grounds used in manure, the greater the deodorizing effect. However, considering practicality and economy, it is preferable to use about 50 parts or less of coffee grounds per 100 parts of manure. Further, for example, when the above-described deodorizing method is applied to a pig house, a deodorant made of coffee grounds or a mixture of coffee grounds and sawdust is spread over the floor of the pig house to a thickness of several cm to about 1 m. Only by changing the deodorant about once a year, the deodorizing treatment of the piggery can be performed sufficiently effectively, and the breeding environment can be maintained well. The amount of the sawdust used in the deodorant of the present invention containing coffee grounds and sawdust may be adjusted according to the type and state of the manure and the like.

[0017] The coffee grounds and the sawdust containing mixed manure after being used for the deodorization treatment of manure may be discarded, but may also be used as fertilizer. When using a mixture of coffee grounds, sawdust and manure as fertilizer,
It may be used directly as it is, may be used by mixing with other materials such as a soil improver such as a porous mineral or a chemical fertilizer, or may be used after being left to ferment for a predetermined period. When used as a fertilizer, coffee grounds and sawdust can be used not only as a deodorant for manure but also as a fertilizer or a medium for fertilizer, which is extremely preferable in terms of effective use of coffee grounds and sawdust.

[0018]

The present invention will be described below in more detail with reference to examples and the like, but the present invention is not limited thereto.

Reference Example 1 Coffee lees (water content of about 30 parts) at a ratio of about 50 parts with respect to 100 parts of manure on the entire surface of a concrete floor which is sticky with manure of a pig house of about 6 tsubo.
%, Particle size of about 0.5 to 5 mm) After evenly spraying 20 kg, a part of it was excreted together with manure in a plastic bag (made of polyethylene).
Was collected. The concentration of ammonia gas in the plastic bag was measured over time using a simple ammonia concentration measurement kit ("Judge Three" manufactured by Japan Microbial Chemistry Co., Ltd.). The ammonia gas concentration in the bag is shown in Table 1 below. It was as follows.

[0020]

[Table 1]

From the results in Table 1, it can be seen that the deodorant containing coffee grounds has an action of adsorbing ammonia gas generated from manure and is effective for deodorizing manure.

Reference Example 2 50 parts by weight of coffee cake (water content: about 40%, particle size: about 0.5 to 5 mm) is added to 100 parts by weight of manure in a pit (manure dug on the ground) and mixed. Then, a part thereof was collected in a plastic bag (made of polyethylene). When the concentration of ammonia gas in the plastic bag was measured over time using the same simple ammonia concentration measurement kit used in Example 1, the concentration of ammonia gas in the bag was as shown in Table 2 below. Was.

[0023]

[Table 2]

From the results in Table 2 above, it can be seen that the deodorant containing coffee grounds has an action of adsorbing ammonia gas generated from manure and is effective for deodorizing manure. According to the results in Table 2, although the ammonia gas concentration in the bag was higher than that after 10 minutes after one week, it was still reduced to 40% of the initial ammonia gas concentration. It can be seen that the deodorant containing the compound can maintain its deodorizing effect over a long period of time. Furthermore, Table 2 shows that the concentration of ammonia gas in the bag becomes extremely low after 3 days. From this, a deodorant containing coffee grounds is mixed or sprayed on manure and left for a predetermined period, and then the deodorant is removed. It can be seen that if the excrement is removed and collected together with the excreta from the barn at the time when the effect is highest (3 days after in Table 2), and such a cycle is repeated, the animal breeding environment can always be kept clean.

Example 1 Coffee grounds (water content about 20%, water content: 100 parts by weight)
50 parts by weight (particle size: about 0.5 to 5 mm) were added and mixed, and a part thereof was collected in a plastic bag (made of polyethylene). When the concentration of ammonia gas in the plastic bag was measured over time in the same manner as in Example 1, the concentration of ammonia gas in the bag was as shown in Table 3 below.

[0026]

[Table 3]

Example 2 Coffee grounds (water content about 20%, water content: 100 parts by weight)
100 parts by weight (particle size: about 0.5 to 5 mm) were added and mixed, and a part thereof was collected in a plastic bag (made of polyethylene). When the concentration of ammonia gas in the plastic bag was measured over time in the same manner as in Example 1, the concentration of ammonia gas in the bag was as shown in Table 4 below.

[0028]

[Table 4]

Comparative Example 1 A commercially available manure mainly composed of zeolide is used for 100 parts by weight of a part of the ogre flour which is sticky with manure of a piggery in which the same sawdust as in Example 1 is spread to a thickness of about 70 cm. 10 parts by weight of the treating agent was added and mixed, and a part thereof was collected in a plastic bag (made of polyethylene). When the concentration of ammonia gas in the plastic bag was measured over time in the same manner as in Reference Example 1, the concentration of ammonia gas in the bag was as shown in Table 5 below. Did not. From this,
It can be seen that the commercially available manure treating agent containing zeolite as a main component is not effective for deodorizing the manure.

[0030]

[Table 5]

Comparative Example 2 100 parts by weight of activated carbon was added and mixed with 100 parts by weight of a part of an ogre powder which was sticky with manure of a piggery in which the same sawdust as in Example 1 was spread to a thickness of about 70 cm. , And a part thereof was collected in a plastic bag (made of polyethylene). When the concentration of ammonia gas in the plastic bag was measured over time in the same manner as in Reference Example 1, the concentration of ammonia gas in the bag was as shown in Table 6 below. However, it can be seen that activated carbon is not effective for deodorizing manure.

[0032]

[Table 6]

[0033]

Effect of the Invention According to the present invention, a deodorizing agent containing coffee grounds and sawdust is used to smoothly adsorb ammonia gas and other odorous gas generated from manure to perform deodorizing treatment of manure. It can be carried out effectively, and in particular, the animal breeding environment can be kept hygienic. Then, in the case of the present invention, the deodorization treatment of manure can be performed by a very simple operation of mixing or spraying coffee grounds and sawdust into manure. In the case of the present invention,
Conventionally, it is possible to use coffee grounds, which has been difficult to handle as waste, very effectively as a deodorant for manure. Furthermore, the deodorant of the present invention has high safety and has very little harm to animal health even when used in an animal breeding environment such as a livestock barn.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01K 1/015

Claims (2)

(57) [Claims] 1. A method for treating manure, which comprises mixing or spraying coffee grounds and sawdust on manure to perform a deodorizing treatment. 2. A deodorizing agent for manure comprising at least a part of coffee grounds and sawdust.