JP2011173882A - Disinfectant for barn - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disinfectant for barns capable of spraying by power without fear for an operator to have a burn and having persistent microbicidal effects. <P>SOLUTION: The disinfectant for barns includes 60.00-80.00 wt.% calcium hydroxide and 20.00-40.00 wt.% magnesium hydroxide and comprises particles having 65-150 μm particle size in ≥99.8% of the whole quantity. Alternatively, the disinfectant for barns comprises calcium hydroxide and magnesium hydroxide, the sum total of which is ≥90.00 wt.% based on the whole quantity. Alternatively, the disinfectant for barns is brought to comprise particles having ≤90 μm particle size in ≥92.3% of the whole quantity. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disinfectant used for disinfecting barns and the like.

  In recent years, infectious diseases and diseases of livestock such as foot-and-mouth disease and avian influenza have become a problem. In order to prevent the occurrence of these diseases, it is necessary to eliminate the source of infection and cut off the infection route. As a method of eliminating the source of infection and cutting off the route of infection, sterilization of barns is effective.

  Conventionally, disinfectants such as chlorinated compound disinfectants and reverse soap have been used for disinfecting barns. However, since these disinfectants do not have a lasting disinfecting effect, it is recommended to apply and disperse lime milk that has been reacted with quick lime with water to the barn after the disinfection of these disinfectants. It was. This is because a continuous bactericidal effect can be expected by applying lime milk.

As a disinfectant containing quicklime, it is disclosed by patent document 1, for example. The sanitary treatment agent disclosed in Patent Document 1 includes quick lime powder having a specific surface area of 0.05 to 0.5 m ² / g as an active ingredient, and 1 to 5% by weight fatty acid of quick lime mixed therewith. It is characterized by that. Thereby, dust is not scattered at the time of spraying, and there is no possibility of incurring a local high temperature that leads to a fire.

JP2008-69136

  However, like the sanitary treatment agent described in Patent Document 1, the conventional disinfectant mainly composed of quick lime generates considerable heat when it is reacted with water to prepare lime milk. There is a problem that it is difficult and there is a risk that the operator may be burned.

  In addition, lime milk is difficult to be sprayed by power like a disinfectant, and therefore, a great deal of labor is required to spread it over a large barn. For these reasons, although recommended, the application of lime milk has not been carried out much.

  Furthermore, in livestock houses, etc., a strong odor is generated, which may cause problems in daily life in relation to neighboring residents.

  In view of such circumstances, the present invention has no risk of burns to the operator, power spraying is also possible, has a continuous sterilization effect, and limits the particle size to a specific range, An object of the present invention is to provide a barn disinfectant that also contributes to a deodorizing effect that is a problem peculiar to barns and the like by utilizing the adsorption effect of a porous substance.

The problems of the present invention are solved by the following inventions.
That is, the barn disinfectant of the present invention contained 60.00-80.00 wt% calcium hydroxide and 20.00-40.00 wt% magnesium hydroxide, and 99.8% or more of the total was composed of particles having a particle size of 150 μm or less. Is the main feature.
Thereby, since it does not contain calcium oxide, a large amount of heat is not generated by reaction with water, so there is no risk of burns to the operator. Moreover, since it is comprised with the particle | grains with a small particle size, power spraying is attained and workability | operativity becomes a very good thing. Furthermore, since it solidifies after spraying and stays there, the sterilizing power is maintained.

The main feature of the barn disinfectant of the present invention is that the total of calcium hydroxide and magnesium hydroxide is 90.00 wt% or more of the whole.

Thereby, heat generation is further reduced and the sterilizing power is also increased.

Furthermore, the main feature of the disinfectant for barns according to the present invention is that 92.3% or more of the whole is composed of particles having a particle size of 90 μm or less.

This further reduces clogging in the sprayer during power spraying, making power spraying easier.

  The disinfectant for barns according to the present invention can be sprayed on barns without causing the operator to get burned.

  In addition, the barn disinfectant of the present invention of the present invention is superior in that it has a high deodorizing effect peculiar to barns, etc. by utilizing the adsorption effect of the porous material by limiting the particle size within a specific range. Demonstrate the effect.

It is the flowchart which showed one Embodiment of the manufacturing method of the disinfectant for livestock barns of this invention. It is the table | surface which showed the composition of the disinfectant for barns of this invention. It is a table | surface which shows the evaluation verification result with a conventional disinfectant. It is the table | surface showing the number of bacteria before and behind disinfection of each part of a barn.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, when a numerical range is indicated using “˜”, both the upper limit and the lower limit are included in the range.

<Manufacturing method of disinfectant for barns>

FIG. 1 is a flow diagram showing an embodiment of a method for producing a barn disinfectant (hereinafter sometimes referred to as a dolomite disinfectant) according to the present invention. As shown in FIG. 1, dolomite ore is mined from the mining site (step S1), and the mined dolomite ore is crushed to a size of 50 to 90 mm (step S2).

Next, the dolomite ore crushed in the Merz furnace is fired (step S3). Digestion is performed to react the baked product with water (step S4), and aging is performed to complete the digestion of step S4 over time (step S5).

Adjustment is performed so that the maturing is completed to a predetermined size (step S6).

<Composition of disinfectant for barns>

Next, the composition of the disinfectant for barns according to the present invention manufactured by the above-described manufacturing method shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a table showing the composition of the barn disinfectant of the present invention.

As shown in FIG. 2, the barn disinfectant of the present invention contains Ca (OH) _{2 as} its main component in an amount of 60.00 to 80.00 wt% and Mg (OH) _{2 in an amount} of 20.00 to 40.00 wt%. Here, the total of Ca (OH) ₂ and Mg (OH) ₂ is preferably about 90.00 wt% or more of the total.

The present inventor has intensively studied that when the disinfectant for livestock barn of the present invention contains Ca (OH) ₂ and Mg (OH) ₂ in the above composition, it has a strong bactericidal effect with sustained formation, and is mixed with water. It has been found that it has the effect of suppressing heat generation and improving workability when it is made to occur.

  Moreover, it is preferable that the disinfectant for livestock barn of the present invention does not contain particles having a particle size of 600 μm or more. Further, it is preferable to contain 99.8% or more of particles of 150 μm or less, and more preferably 92.3% or more of particles of 90 μm or less. Thereby, power spraying becomes possible and the workability | spreadability spread | spread to a livestock bar improves significantly.

Furthermore, the present inventor has also found that when the particle size of the barn disinfectant of the present invention is less than 65 μm, the capacity of adsorbing and deodorizing the bad odor and foul odor of the barn rapidly decreases. Therefore, the particle size of barns disinfectant of the present invention is preferably not less than 65 .mu.m.

<Test>

Next, the test about the bactericidal effect and the result will be described. This test was conducted using Salmonella (Salmonella Eneritidis' hereinafter referred to as SE) and Staphylococcus aureus using the dolomite disinfectant of the present invention, a chlorinated composite disinfectant for comparison with the present invention, and reverse soap. This is a comparative verification of the disinfection effect against Staphylococcus aureus' (hereinafter referred to as SA).

  The dolomite disinfectant (Example 1) which is the disinfectant of the present invention is 1: 2 to 1: 4, the chlorinated composite disinfectant (Comparative Example 1) and the reverse soap (Comparative Example 2) are 1: 500 to 1 : Used after diluting to 2,000. This dilution factor is a dilution factor used for normal barn disinfection.

(1) Test bacteria

The following were used as test bacteria.

SE: Heart infusion liquid medium 18 hour culture (6.0 × 10 ⁷ CFU / ml)

SA: Heart infusion liquid medium 18 hour culture (2.2 × 10 ⁹ CFU / ml)

(2) Test method

500 ml of the bacterial solution was added to 5 ml of each of the diluted solutions of Example 1 and Comparative Examples 1 and 2, and sensitized for 30 minutes at 24 ° C., then 5 ml of Heart Infusion liquid medium was inoculated. After culturing at 37 ° C. for 48 hours, the effect was determined by the presence or absence of bacterial growth.

(3) Test results

FIG. 3 shows the test results. FIG. 3 is a table showing the results of evaluation verification with conventional disinfectants. In FIG. 3, “−” indicates that the bacteria did not grow, and “+” indicates that the bacteria grew.

  As shown in FIG. 3, it was found that the dolomite-based disinfectant of the present invention has a bactericidal effect equivalent to or higher than that of conventionally used chlorine-based composite disinfectants and reverse soaps.

<Dispersion evaluation>

Next, application evaluation of the dolomite disinfectant of the present invention was performed. 40 liters of water was mixed with 40 kg of the dolomite disinfectant of the present invention and sprayed using a power sprayer.

As a result, there was no heat generation that hindered work, and power spraying could be performed well.

<Evaluation of bactericidal effect in barns>

In a certain barn, the bactericidal effect was evaluated by applying the barn disinfectant of the present invention. The number of general bacteria before and after disinfection on the concrete floor, metal pillars and wooden walls of the barn was measured. The result is shown in FIG. FIG. 4 is a table showing the number of bacteria before and after disinfection of each part of the barn.

  As shown in FIG. 4, the bacteria were reduced to almost 0 by applying the sanitizing agent for barns according to the present invention. Further, since the barn disinfectant of the present invention becomes a white solid when dried after disinfection and continues to exist at that position, the bactericidal effect is considered to continue as long as the disinfectant is present.

  As described above, the dolomite-based disinfectant of the present invention has a sterilizing power equivalent to or higher than that of conventional disinfectants, and does not generate much heat when mixed with water, so there is no danger of burns to the operator. Furthermore, workability is extremely good because power spraying is possible.

In recent years, there is a growing sense of crisis about bird and swine flu, foot-and-mouth disease, and multidrug-resistant bacteria that are ineffective for antibiotics. Such a sense of crisis is not limited to Japan, but is regarded as a problem on a global scale. Since the baked dolomite is recognized to have antibacterial and antiviral properties against microorganisms, the disinfectant for barns according to the present invention is not only used as a disinfectant for barns, but also, for example, for wet building finishing materials, etc. By including it, it can be used for health building materials, sick house syndrome countermeasure materials, etc., and its industrial applicability is high in other fields.

Claims (3)

A disinfectant for barns used for disinfecting barns,
Contains 60.00-80.00 wt% calcium hydroxide, 20.00-40.00 wt% magnesium hydroxide,
A disinfectant for barns, characterized in that 99.8% or more of the whole is composed of particles having a particle size of 150 μm or less and 65 μm or more.   The total of calcium hydroxide and magnesium hydroxide is 90.00 wt% or more of the whole, The disinfectant for barns according to claim 1 characterized by things.   The disinfectant for barns according to claim 1 or 2, wherein 92.3% or more of the whole is composed of particles having a particle size of 90 µm or less.