JP2016166150A - Disinfectant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety in comparison with a case of using calcium hydroxide in itself.SOLUTION: Disinfectant containing slug is scattered on ground such as around cattle shed, in the cattle shed and outside edge of farm (S1). The scattered granular disinfectant is stamped by a person or a vehicle, and is cracked or crushed (S2). The cracked or crushed disinfectant sticks to the person or the vehicle which have cracked or crushed the granule, and moves with the person or the vehicle (S3). Whether the disinfection effect of the disinfectant decreased can be detected by checking with viewing whether the disinfectant becomes purple (S4). When the decrease of the disinfection effect of the disinfectant is detected, the disinfectant is scattered again (S5).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a disinfectant for spraying, a disinfection method thereof, and a detection method thereof.

At present, livestock farmers all over the country are suffering from serious damage caused by foot-and-mouth disease virus and avian influenza. Conventionally, in livestock farmers and the like, as described in Non-Patent Document 1 and paragraphs 0002 to 0003 of Patent Document 1, in order to prevent the introduction of pathogens around livestock houses, etc., calcium hydroxide (Ca (OH) _{2. A} method of spreading slaked lime powder on the ground is widely used.

“Housing and Sanitation Control Standards (Cow / Buffalo / Deer / Men / Goat)”, Ministry of Agriculture, Forestry and Fisheries, October 2011, p. 6-8

JP2012-217453

  However, the aqueous solution of calcium hydroxide exhibits strong alkalinity, and the calcium hydroxide powder is easily scattered by the wind. For this reason, there is a problem in safety in spreading the calcium hydroxide powder such that the scattered powder adheres to human eyes and limbs and causes inflammation.

  Therefore, an object of the present invention relates to a disinfectant for spraying that is safer than when calcium hydroxide itself is used, a disinfection method thereof, and a detection method thereof.

The present invention is a disinfectant for spraying and contains slag. Slag, calcium oxide (CaO, quicklime), and a main component, silicon dioxide (SiO ₂₎ or the like, an aqueous solution of the slag exhibits alkalinity. However, the pH when only slag and water are mixed is smaller than the pH when only calcium hydroxide and water are mixed as shown in Table 1 described later. That is, compared with calcium hydroxide, slag is highly safe when attached to a human body or the like. In the present invention, “spreading” means that at least a part of the disinfectant is exposed on the surface of soil or the like.

  Moreover, in this invention, the granular material containing the said slag may be included. When the slag-containing disinfectant is powder, the disinfecting effect is reduced due to wind blowing and disinfecting the disinfectant or raining and disinfecting the disinfectant. In addition, the disinfectant may fall on the human body due to wind or the like. In particular, at the time of spraying, the risk is high for the sprayer. However, by using slag as a granular material, it is possible to suppress the dispersal and outflow of the disinfectant. In addition, if the granular material is adjusted to a hardness that can be crushed or pulverized by the load of a person or vehicle, the undegraded slag inside the granular material is exposed every time it is crushed or pulverized by a person or vehicle. And the shoe soles and tires are disinfected. Furthermore, when the shoes or tires to which the disinfectant is attached pass through the ground or the like where the disinfectant is not sprayed, the disinfectant can be diffused by transferring the disinfectant from the shoes or tires to the ground or the like. .

  Moreover, in this invention, the said granule granulated while adding the binder may be included. By adding a binder, the hardness of the granular material can be easily adjusted. For example, depending on usage conditions, such as the ground that is the spraying place is muddy, the granular material may easily collapse unless a binder is added. In that case, the hardness of a granular material can be adjusted according to a use condition by adding a binder.

  Moreover, in this invention, you may contain the additive which can reduce pH by reducing the melt | dissolution amount to the water of the alkaline substance derived from the said slag. By adding an additive to the disinfectant and reducing the content of slag per unit mass contained in the disinfectant, the pH of the disinfectant can be lowered. As a result, the influence on the human body or the like can be further reduced.

  In the present invention, the term “additive capable of lowering pH” means that by adding the additive, the content of slag in the disinfectant is changed, and the alkaline substance derived from slag dissolves in water. It refers to an additive capable of lowering the pH when it is applied. In the present invention, “alkaline substance” refers to an aqueous solution that is alkaline when dissolved in water.

  In the present invention, the additive may be zeolite. In the case of zeolite, since it is a neutral substance or a substance close to neutrality, the pH of the disinfectant is not greatly changed even if it is added to the disinfectant. Therefore, it is easy to adjust pH. Furthermore, since zeolite is a porous substance, the effect of adsorbing components in slag can be expected.

  Moreover, in this invention, the disinfectant may contain the pigment | dye which can detect the fall of the disinfection effect by a color changing according to pH. The calcium oxide contained in the slag changes to calcium hydroxide and finally reacts with carbon dioxide to become almost neutral calcium carbonate. As a result, the disinfectant has no disinfecting effect. On the other hand, since the difference in appearance between calcium oxide and calcium carbonate is small, even when the calcium oxide in the slag changes to calcium carbonate, the appearance of the disinfectant is unlikely to change. Therefore, even if the disinfectant after spraying is seen, it may not be possible to determine whether the disinfecting effect has decreased. However, if the disinfectant contains a dye that can detect the deterioration of the disinfection effect by discoloration, it can be determined whether alkaline substances remain in the disinfectant that has been sprayed, and the timing of disinfection of the disinfectant can be determined. Therefore, it is possible to prevent the disinfectant from being sprayed excessively or leaving the ground or the like exposed to the risk of pathogens and the like without any disinfection effect.

  In the present invention, the pigment may be made of a natural material. The disinfectant is sprayed on the ground around the barn, in the barn, and at the outer edge of the farm. For this reason, natural pigments that do not affect the environment are preferred.

  Moreover, in this invention, you may contain a porous substance. By adsorbing the dye to the porous substance, the scattering of the dye can be suppressed and the effect of the dye can be prolonged.

  The disinfection method of the present invention includes a step of spraying a granular material containing slag, a step of pulverizing or pulverizing the sprayed granular material with a load of a person or a vehicle, and a person pulverizing or pulverizing the granular material. Alternatively, the pulverized product or the pulverized product of the granular material attached to the vehicle is moved together with the person or the vehicle.

  In the present invention, first, a step of spraying a granular material containing slag is performed. The pH is lower than that of spraying calcium hydroxide, and it is safe for the human body. Furthermore, by spraying the granular material, it is possible to prevent the disinfectant from scattering or flowing out due to wind and rain.

  Next, a step of pulverizing or pulverizing the dispersed particles by the load of a person or a vehicle is performed. As described above, since the slag is dispersed in a granular state, the disinfectant may be less likely to diffuse compared to the case where the slag is dispersed in a powder state. In the present invention, the granular material is crushed or crushed by the load of a person or a vehicle. For this reason, when a person or vehicle passes over the dispersed particles, the particles are crushed or crushed by the load of the person or vehicle, and the disinfected disinfectant Adhere to tires. And the process which the crushed material or ground material of the said granular material adhering to the person or vehicle which crushed or ground the granular material moves with a person or a vehicle is performed. Thus, the disinfectant can be diffused by passing the disinfectant on the ground or the like where the disinfectant is attached to shoes or tires and the disinfectant adheres to the ground or the like.

  In the method for detecting a disinfectant according to the present invention, a disinfectant containing slag and a pigment capable of detecting a decrease in disinfecting effect by changing the color according to pH are sprayed simultaneously or individually. The calcium oxide contained in the slag changes to calcium hydroxide and finally reacts with carbon dioxide to become almost neutral calcium carbonate. As a result, the disinfectant has no disinfecting effect. On the other hand, since the difference in appearance between calcium oxide and calcium carbonate is small, even when the calcium oxide in the slag changes to calcium carbonate, the appearance of the disinfectant is unlikely to change. Therefore, even if the disinfectant after spraying is seen, it may not be possible to determine whether the disinfecting effect has decreased. However, by using a dye that can detect a decrease in disinfection effect by discoloration and a disinfectant that contains slag, either simultaneously or individually, does the disinfectant that contains an alkaline substance remain in the sprayed material? Can be determined. Therefore, it becomes possible to determine the dissemination time of the disinfectant, and it is possible to prevent the disinfectant from being sprayed at a high frequency or leaving the ground etc. in a state exposed to the risk of pathogens without disinfecting effect. . In the present invention, “simultaneously spraying” “simultaneously” also means that the dye is contained in the disinfectant.

FIG. 1 is a flow chart relating to a disinfecting method using a disinfectant containing slag and a detecting method of the disinfectant.

  Below, the disinfectant for spraying which concerns on one Embodiment of this invention is demonstrated. This disinfectant is used to prevent pathogens from entering the livestock barn, farm, etc. by spraying around the barn, in the barn, and at the outer edge of the farm. The disinfectant includes a granular material containing slag, zeolite, and litmus (litmus moss pigment). Slag is a material generated in a pig iron manufacturing process, a steel manufacturing process, a waste incineration process, or the like. For example, granulated blast furnace slag contains calcium oxide as one of the main components. Calcium oxide reacts with water to become calcium hydroxide. Since calcium hydroxide is an alkaline substance, blast furnace granulated slag is a material that reacts with water and exhibits alkalinity. The pH of the granulated blast furnace slag is around 10-11. In general, if the pH is 9 or more, it is said that it has a disinfecting activity against pathogens (“Guidelines for the Prevention of Specific Livestock Infectious Diseases concerning Foot-and-Mouth Disease”, published by the Minister of Agriculture, Forestry and Fisheries, October 1, 2011, p. 27). It is even better when the pH is 10 or higher. Further, it is important that the pH is less than 12 in order to enhance safety when adhering to a human body or the like as compared with calcium hydroxide. Thus, blast furnace granulated slag is a main component for obtaining a disinfecting effect in the present disinfectant. On the other hand, calcium hydroxide reacts with carbon dioxide in the atmosphere and changes to calcium carbonate. Therefore, when the pH of the disinfectant-derived calcium hydroxide is changed to calcium carbonate so that the pH is close to neutral, it is difficult to obtain a disinfecting effect.

The disinfectant is formed as a granular material as described above. The granular material is adjusted so as to have a hardness that can be crushed by a load of a person or a vehicle. In the present embodiment, “crush” means “crushing” or “crushing”. Although the granular material is not crushed by a human load, the hardness is adjusted depending on the application, for example, the granular material is hardened by a vehicle load. For example, the contact pressure (both legs) of a child whose weight is 20 kg and whose foot size is 20 cm long × 4.5 cm wide is 0.12 kg / cm ² . From this, in order to be able to be crushed even by a child, a granular material having a hardness with a lower limit of the pressure that can be crushed is any one of 0.12 kg / cm ² or less. The contact pressure of an adult having a weight of 60 kg and a foot size of 27 cm long × 6 cm wide is 0.19 kg / cm ² . Therefore, in the not broken so that breaking is adult children, the lower limit of the shattered can pressure is either greater than 0.19 kg / cm ² or less of 0.12 kg / cm ² sizes become hardness of Granules. Furthermore, “Masataka Akiyama,“ Relationship between wheel load, contact pressure and contact radius ”, JSCE Proceedings, November 1975, No. 243, p. According to 88, a 6 ton commercial vehicle has a contact pressure of 3.85 to 10.34 kg / cm ² . Therefore, although not broken by the load of the person, if the granulate can be crushed in commercial vehicles such as trucks, the lower limit of the shattered can pressure 0.19 kg / cm ² greater than 3.85 kg / cm ² A granular material having any of the following sizes is used.

  The granular material is preferably about 0.5 mm to 10 mm, and more preferably about 2 mm to 5 mm. If the diameter of the granular material is too large, it is not suitable for walking and difficult to be crushed, but if the granular material is of an appropriate size, it will be easier for people to walk and crushed. In addition, since a gap is formed between large granular materials during spraying, the ground or the like may be exposed and the disinfection effect may be reduced. However, it is difficult to form such a gap between the granules by setting the size of the granules to an appropriate range. Moreover, by providing a lower limit to the size of the granular material, it is possible to suppress the granular material from becoming too small and being easily scattered by the wind or the like.

  Hereinafter, components other than the slag contained in the granular material will be described. Zeolite is a neutral or nearly neutral substance of aluminosilicate having a network structure. In this embodiment, it is used to relatively reduce the slag content. For example, when comparing a disinfectant containing zeolite with a disinfectant containing only blast furnace granulated slag, if the total amount is the same, the disinfectant containing zeolite has a lower content of granulated blast furnace slag. Become. For this reason, when a predetermined amount of these disinfectants is dissolved in a predetermined amount of water, the amount of the alkaline substance (calcium hydroxide) derived from blast furnace granulated slag is less dissolved in the disinfectant containing zeolite. Prone. Since zeolite itself is a neutral or nearly neutral substance, a predetermined amount of disinfectant was dissolved in a predetermined amount of water by reducing the amount of alkaline substance derived from ground granulated blast furnace slag in water. In some cases, the pH of the aqueous solution is lowered. Thus, zeolite corresponds to the additive of the present invention capable of lowering the pH by reducing the amount of alkaline substance derived from slag dissolved in water. That is, by adding zeolite, the content of slag in the disinfectant can be reduced, so that the disinfectant can be made safer than when calcium hydroxide itself is used.

  On the other hand, by adding zeolite to the disinfectant while keeping the slag content constant, the volume of the disinfectant can be increased and spraying can be facilitated. By adding zeolite to the disinfectant while keeping the slag content constant, the amount to be sprayed increases, so that it can be finely sprayed by a general spraying method. Thus, the effect of the addition of zeolite also has an aspect that it takes less time for spraying.

  Furthermore, since zeolite is a porous material, it can be expected to adsorb components and pigments in the slag. As an example, depending on the pH desired for the disinfectant, the total mass of granulated blast furnace slag and zeolite may be 10, and the mass of the zeolite may be 1-9, but 1-5 in terms of ensuring a pH of 10 or more. (See Example 1 described later). In this embodiment, this adjusts the pH of the disinfectant to a desired value of around 10.

  In addition to zeolite, additives such as sand, pumice, silica gel, diatomaceous earth, and shell fossils are available as additives that can lower the pH by reducing the amount of alkaline substances derived from slag in water. It may be. Among these materials, it is preferable to select a material that is neutral or more neutral than slag.

  Litmus is a pigment exhibiting a blue color when the pH of the aqueous solution is 8 or more, and a purple color when the pH is 6-8. The mass of litmus may be small compared to other components. For example, the mass of litmus may be 1 for 100 total of granulated blast furnace slag and zeolite. In the present embodiment, as described above, the pH of the disinfectant is adjusted to around 10. For this reason, litmus in the disinfectant initially exhibits a blue color. On the other hand, as described above, calcium hydroxide derived from granulated blast furnace slag reacts with carbon dioxide in the atmosphere as time passes, and changes to calcium carbonate. The pH of calcium carbonate is close to neutral. For this reason, when there is no calcium hydroxide derived from granulated blast furnace slag, the pH of the disinfectant is less than 8, and the litmus in the disinfectant exhibits a purple color. Thus, litmus can detect a decrease in the disinfection effect of the disinfectant according to the present embodiment by changing the color.

  A dye other than litmus may be used. In this case, any dye may be used as long as it can detect a decrease in disinfection effect by a color change. The amount of dye may be increased or decreased depending on the degree of coloring of the disinfectant. In addition, since the disinfectant is sprayed around the barn, in the barn, the outer edge of the farm, and the like, it is preferable that the dye used for the disinfectant does not easily affect the environment. For example, in addition to litmus, red diso pigment, high red G150 (grape skin pigment), high red RA200 (red radish pigment), curcumin (turmeric pigment) and the like. In addition, as long as it is hard to influence an environment, a pigment | dye may consist of a natural material or a chemically synthesized product.

  The granule of this embodiment is granulated using a bread type granulator. The granulated product having a desired particle size is obtained as the present disinfectant by sieving the granulated product. As a granulator, in addition to a bread-type granulator, “Miwa Shigeo“ Powder Engineering ”, Nikkan Kogyo Shimbun, February 5, 1981, p. 176-177 ", various granulators based on the agglomeration granulation method, extrusion granulation method, compression granulation method, crush granulation method, spray granulation method, etc. can be used. . The size and hardness of the granular material can be adjusted in accordance with the granulation conditions such as the rotation speed and inclination angle of the bread and the amount of water added. Moreover, the granule may be granulated while adding a binder. By adding a binder, it is possible to adjust the granular material to a desired hardness. For example, depending on the state of use of the disinfectant, the granular material may easily collapse unless a binder is added, such as the ground being muddy. In that case, the hardness of the granular material can be adjusted by adding a binder. Examples of the binder include polyvinyl alcohol, polyvinyl pyrrolidone, carboxymethyl cellulose, polyacrylic acid, starch, sucrose, lignin, lignin sulfonate, cellulose, and wax, and two or more types can be used in combination. is there. In addition, when the slag used as a material for producing the disinfectant originally contains a granular material, and the particle size is larger than the target size, granulation is not performed. The diameter may be selected and used as a disinfectant as it is.

  Hereinafter, an example of a disinfection method and a disinfectant detection method using the present disinfectant will be described with reference to FIG. First, in the spraying step S1, the disinfectant is sprayed on the ground such as around the barn, in the barn, or on the outer edge of the farm. The disinfectant immediately after spraying exhibits a blue color due to litmus. The spraying method is not particularly limited, but may be sprayed by hand, or sprayed by a machine using a spraying pump or the like. In the present embodiment, the term “spraying” means that at least a part of the disinfectant is spread widely so as to be exposed to the ground or the like. Here, “part of the disinfectant” means a part of a large number of particulates. For example, spreading a mixture of soil or the like and a disinfectant on the ground so that a part of the disinfectant is exposed from the ground also corresponds to spraying.

  Next, in the crushing / pulverizing step S2, the disinfectant of the dispersed granular material is stepped and crushed by a person or a vehicle. When a person or vehicle passes over the dispersed particles, the particles are crushed by the load of the person or vehicle, and the crushed disinfectant enters the grooves of, for example, the back of shoes or tires. Adhere with.

  Next, the disinfectant disintegration or crushed material adhering to the person or vehicle that has crushed the granular material is moved together with the person or the vehicle by the moving step S3. For example, when a shoe, a tire or the like in which a disinfectant enters a groove passes through a ground where the disinfectant is not sprayed, the disinfectant adheres to the ground. Thus, the disinfectant diffuses to areas other than the area where it was originally sprayed.

  Next, it is detected by detection process S4 whether the disinfection effect of the disinfectant fell. By visually confirming whether or not the disinfectant has turned purple, it can be detected whether or not the disinfecting effect of the disinfectant has decreased. When it is detected that the disinfecting effect of the disinfectant has decreased due to S4 (S4, YES), the disinfectant is resprayed in the respreading step S5. When it is not detected that the disinfecting effect of the present disinfectant has decreased due to S4 (the disinfecting effect has not decreased) (S4, NO), the processes from S2 are executed.

[Example 1]
Embodiments according to the present invention will be described in detail below. Blast furnace granulated slag (made by Nippon Steel Cement, Spirits 60B), zeolite (made by Hokkaido zeolite, hard Niki zeolite), calcium hydroxide (made by Hokkaido Calcifying Industry, Kumiai slaked lime), and 5 ml water Granulation was performed with a bread granulator (manufactured by ASONE, PZ-02R) at a pan inclination angle of 45 degrees and a bread rotation speed of 20 to 40 rpm. The obtained product was passed through a sieve having a mesh size of 1.4 mm, and the granules on the sieve were dried at 60 ° C. overnight.

  Reciprocal shaking was performed for 1 hour at 100 rpm with respect to 2.0 g of the obtained granular material and 10 ml of water. Thereafter, the slurry thus obtained was centrifuged at 3500 rpm for 5 minutes, and the pH of the supernatant was measured with a glass electrode pH meter (WM-22EP manufactured by Toa DKK Corporation). For Example a with only blast furnace granulated slag, the pH was 10.7. About Example b-f of the granulated material by granulated blast furnace slag and zeolite, pH was 10.4-10.7. For Examples gj, where there was more zeolite than granulated blast furnace slag, the pH was 9.7-9.9. For Comparative Example a with only zeolite, the pH was 8.9. For Example k, which was 10.0 g of granulated blast furnace slag, 10.0 g of zeolite, and 0.1 g of calcium hydroxide, the pH was 10.9. Further, for Comparative Examples b to d, when the ground granulated blast furnace slag was 10.0 g, zeolite 10.0 g, calcium hydroxide 1.0 g to 10.0 g and calcium hydroxide were increased, the pH was 12.1 to 12.3. It became. About the comparative example e of only calcium hydroxide, it became pH12.3. Therefore, in order to obtain a disinfectant having a pH lower than that of calcium hydroxide alone, the disinfectant has a pH of less than 12.3. Further, in order to ensure a disinfectant having a pH lower than that of calcium hydroxide alone, it is preferable that the disinfectant has a pH of less than 12.0.

From Example a to j, that is, when the content of granulated blast furnace slag in the granule is decreased and the content of zeolite is increased accordingly, the pH is lowered. This is because the amount of calcium hydroxide derived from calcium oxide contained in the slag dissolved in water (ionization to Ca ²⁺ and OH ⁻ ) decreases, ^and the concentration of OH ⁻ decreases. That is, the addition of zeolite makes it difficult to saturate the amount of calcium hydroxide derived from blast furnace granulated slag in water. From this result, even when the disinfectant containing zeolite is used in the field around the barn, in the barn, the outer edge of the farm, etc. I can say that.

[Table 1]

[Example 2]
Blast furnace granulated slag (14.0 g), zeolite (6.0 g), litmus or curcumin (0.2 g), and water (5 ml) were mixed and granulated with a pan granulator at a pan inclination angle of 45 degrees and a pan rotation speed of 20 to 40 rpm. The obtained product was passed through a sieve having a mesh size of 1.4 mm, and the granules on the sieve were dried at 60 ° C. overnight.

When 10 ml of water was added to and suspended in 2.0 g of the dried granules, the aqueous solution to which litmus was added was blue, and the aqueous solution to which curcumin was added was orange. Thereafter, when 1N nitric acid (HNO ₃ ) was added to the aqueous solution, the color started to change near the neutral pH. In the vicinity of pH 5, which is the average value of precipitation nationwide, the aqueous solution added with litmus turned red and the aqueous solution added with curcumin turned yellow, confirming the difference in color compared to before adjusting the pH. .

When 10 ml of water was added to and suspended in 2.0 g of white calcium hydroxide powder, the aqueous solution was transparent. Although 1N nitric acid (HNO ₃ ) was gradually added to lower the pH, there was no change in the color of the aqueous solution even near pH 5.

  A colorant whose color changes with pH was examined. The Hascup dye exhibits a bluish violet color in an aqueous solution at pH 12, exhibits a green color at pH 13, and exhibits a light red color in an aqueous solution at pH 11 or lower. Therefore, if the disinfectant has a pH of 12 or more (for example, calcium hydroxide itself), it can be detected that the disinfection effect has dropped below pH 12 and has been disinfected.

  The red diso dye is dark yellow in an aqueous solution having a pH of 13, but the yellow color becomes lighter as the pH of the aqueous solution is lowered. Moreover, when the pH is lower than around pH 7, it is slightly reddish. Therefore, when used together with the disinfectant according to the present embodiment, the color differs depending on whether the disinfectant is about pH 10 or neutral. For this reason, it can be detected that the disinfecting effect of the disinfectant has decreased.

  High red G150 (grape skin pigment) exhibits a green color in an aqueous solution of pH 13, and becomes blue as the pH in the aqueous solution decreases. When the pH is lowered to around 8-9, the blue color becomes lighter, purple at pH 7, and red when the pH is 6 or less. Therefore, the disinfection effect of the disinfectant according to the present embodiment can be detected.

  High red MC (cochineal dye) exhibits a pink color in an aqueous solution having a pH of 13. As the pH in the aqueous solution decreases, the pink color becomes lighter. For example, comparing the pH 12 and pH 7 colors, the pH 7 color is lighter.

  High red RA200 (red radish pigment) exhibits a yellow color in an aqueous solution having a pH of 13. The aqueous solution at pH 12 exhibits a blue color, and the aqueous solution at pH 10 also exhibits a blue color. As the pH decreases from 9, the color gradually turns red. The pH is purple at pH 8, and red at pH 6-7 and below. For this reason, it can be detected that the disinfecting effect of the disinfectant has decreased.

  High red S (rack dye) exhibits a deep red color when the aqueous solution has a pH of 7 to 13. Near pH 6, the red color becomes lighter and a little closer to orange. Below pH 5, it is orange.

  Litmus (litmus moss pigment) exhibits a blue color in an aqueous solution of pH 8-12. Redness appears at pH around 8. When the pH is 6 to 8, the color is purple. When pH is 5 or less, red is exhibited. Therefore, the disinfection effect of the disinfectant according to the present embodiment can be detected.

  Curcumin (turmeric pigment) is orange in an aqueous solution of pH 9 or higher, and has a strong color at pH 9-10. Yellow is strong at pH 8, and yellow at pH 7 and below. Therefore, the disinfection effect of the disinfectant according to the present embodiment can be detected.

  According to this embodiment described above, slag is used as a main component that brings about the disinfecting effect of the disinfectant. For example, since the pH of granulated blast furnace slag is around 10-11, which is lower than the pH of calcium hydroxide of about 12, it is safe for the human body. As shoes and tires pass over the disinfected disinfectant, shoes and tires with pathogens attached in other areas are disinfected, and pathogens enter the area around the barn, in the barn, and at the outer edge of the farm. prevent.

  Moreover, the disinfectant which concerns on this embodiment contains the granular material which has components, such as blast furnace granulated slag. In this way, by spraying the disinfectant as a granular material, it is possible to prevent the disinfectant from scattering or flowing out by spraying the powder, and to suppress the deterioration of the disinfecting effect. It can also be suppressed that the disinfectant falls on the human body due to scattering or the like.

  Moreover, as above-mentioned, the granular material is adjusted to the hardness which is crushed by the load of a person, a vehicle, etc. After spraying the disinfectant, every time it is crushed by a person or a car, undegraded blast furnace granulated slag is exposed inside the granule, and the shoe soles and tires are disinfected. Thus, the disinfectant according to the present embodiment includes the granulated blast furnace slag as a granular material, so that the effect of the disinfectant gradually appears. Therefore, the disinfection effect can be prolonged. Furthermore, when crushed disinfectant adheres to the back of shoes or tires, and the shoes or tires to which the disinfectant adheres pass through the ground or the like where the disinfectant is not sprayed, the disinfectant is removed from the shoes or tires. The disinfectant can be diffused by moving to the ground.

  In addition, zeolite is added to the disinfectant of this embodiment. Thereby, the pH of the disinfectant can be further suppressed, and the influence of the disinfectant on the human body and the like can be further reduced.

  Moreover, litmus is added to the disinfectant of this embodiment. As a result, when the disinfectant exhibits a blue color, it can be determined by color vision that calcium hydroxide derived from blast furnace granulated slag remains, that is, the disinfectant has a disinfecting effect. On the other hand, when calcium hydroxide derived from granulated blast furnace slag decreases to some extent with time, the disinfectant becomes purple due to litmus. Thereby, it can be determined by color vision that the disinfectant has no disinfection effect. In this way, since it can be determined in a timely manner whether or not the disinfectant that has already been sprayed has a disinfecting effect, it is possible to appropriately determine when disinfection of the disinfectant is necessary. Therefore, it is possible to prevent the disinfectant from being sprayed excessively or leaving the ground or the like exposed to the risk of pathogens without any disinfection effect. Furthermore, since the disinfectant on the snow can be identified by using a coloring color other than white, there is also an effect of preventing omission.

  Moreover, the disinfectant of this embodiment contains zeolite and a pigment that are porous materials. Thereby, since a pigment | dye adsorb | sucks to a zeolite, the effect which makes a color last long can be acquired.

<Modification>
The above is a description of a preferred embodiment of the present invention, but the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope described in the means for solving the problem. It is possible.

  In the above-described embodiment, as a method of “spraying the disinfectant and the pigment simultaneously”, the disinfectant containing the pigment and the granulated blast furnace slag is sprayed. However, a disinfectant that does not contain a dye and a disinfectant that contains a dye may be prepared and then mixed and sprayed at a predetermined mixing ratio. Further, after preparing a disinfectant that does not contain a dye, the disinfectant may be mixed and sprayed with a dye at a predetermined mixing ratio. For example, a pigment may be mixed with the disinfectant when sprayed. Such spraying methods are also included in the “spraying simultaneously” method. Since the cost of a disinfectant containing a pigment increases, the mixing ratio may be changed as appropriate as long as the effect of the disinfectant can be determined by color vision.

  In addition, as a method of “spreading disinfectant and pigment separately”, after spraying a disinfectant that does not contain a pigment, after only a certain amount of time has passed, spray only the pigment on the disinfectant that has been sprayed in the past. Good. For example, when it is desired to detect whether or not the disinfectant sprayed in the past still has a disinfecting effect, only the pigment may be sprayed at a desired timing. In addition, a dye adsorbed on a porous substance such as zeolite may be dispersed.

  The invention relating to the method for detecting a disinfectant using a pigment as described above is an independent invention that can be realized even when another component is used as a disinfectant component instead of slag. In other words, a disinfectant characterized in that a disinfectant containing a component other than slag and a dye capable of detecting a decrease in disinfecting effect by changing color according to pH are sprayed simultaneously or individually. The “agent detection method” is also independently established as an invention. For example, calcium hydroxide itself may be used as another component, or other alkaline materials may be used. In addition, the colorant at the initial pH of the disinfectant may be different from the color when the pH is lowered (for example, becomes neutral) and the disinfecting effect is lowered (the above-mentioned coloring). (See the review section on drugs). This makes it possible to determine whether alkaline substances remain in the sprayed disinfectant and to determine the timing of disinfecting the disinfectant. Can be prevented from being exposed to the risk of pathogens.

  In the above-described embodiment, blast furnace granulated slag is used as a kind of slag. However, other slag such as blast furnace slow cooling slag may be used. The pH of the blast furnace slow-cooled slag is lower than the pH of calcium hydroxide, similar to the granulated blast furnace slag. For this reason, a disinfectant having a relatively small influence when attached to a human body or the like is realized.

  In the above-described embodiment, blast furnace granulated slag and zeolite are used. However, when it is desired to increase the pH of the obtained disinfectant, calcium hydroxide may be added to the disinfectant. From the experimental results in Table 1, the amount of calcium hydroxide added is preferably less than 1 and more preferably 0.1 or less with respect to the total mass 20 of blast furnace slag and zeolite. Further, only slag may be used without using zeolite.

  In the above-described embodiment, the granular disinfectant is sprayed, but the disinfectant may contain powder in addition to the granular material. Also in this case, compared to a disinfectant made only of powder, the dispersal and outflow of the disinfectant can be suppressed as much as the granular material is used.

  Moreover, in the above-mentioned embodiment, the pigment | dye is adsorb | sucking to the zeolite which is a porous substance. In addition to zeolite, silica gel, perlite, diatomaceous earth, pumice, activated carbon, charcoal, shell fossil, and the like can be used as the porous material.

Claims (10)

  Disinfectant for spraying characterized by containing slag.   The disinfectant for spraying according to claim 1, comprising a granular material containing the slag.   The disinfectant for spraying according to claim 2, comprising the granule granulated while adding a binder.   The dispersion according to any one of claims 1 to 3, further comprising an additive capable of lowering the pH by decreasing the amount of the alkaline substance derived from the slag dissolved in water. Disinfectant for use.   The disinfectant for spraying according to claim 4, wherein the additive is zeolite.   The disinfectant for spraying according to any one of claims 1 to 5, comprising a dye capable of detecting a decrease in disinfecting effect due to a change in color according to pH.   The disinfectant for spraying according to claim 6, wherein the pigment is made of a natural material.   The disinfectant for spraying according to claim 6 or 7, characterized by containing a porous substance. A step of spraying granular material containing slag;
Crushing or pulverizing the dispersed particles with a load of a person or a vehicle;
A disinfecting method comprising: a step of moving together with the person or vehicle the pulverized or crushed object of the granular material adhering to the person or vehicle that crushes or crushes the granular body.   A method for detecting a disinfectant comprising: disinfecting a slag-containing disinfectant and a pigment capable of detecting a decrease in disinfecting effect due to a change in color according to pH, simultaneously or individually.

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