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Pathogenic microbe and insect pest extermination method and pathogenic microbe and insect pest extermination device

A technology for pathogens and pests, which is applied in the field of pathogen and pest repelling and pathogen and pest repelling devices, can solve the problems of residual pesticides, pathogens and pests that cannot be effectively repelled from crops, etc., and achieves excellent bactericidal effect and excellent repelling effect.

Inactive Publication Date: 2015-09-02
TOHOKU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in conventional agriculture, without the use of pesticides, it is impossible to effectively repel pathogenic bacteria and pests of crops, and there is a problem of pesticide residues in crops or soil

Method used

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  • Pathogenic microbe and insect pest extermination method and pathogenic microbe and insect pest extermination device
  • Pathogenic microbe and insect pest extermination method and pathogenic microbe and insect pest extermination device
  • Pathogenic microbe and insect pest extermination method and pathogenic microbe and insect pest extermination device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] figure 1 It is a diagram showing a configuration example of the pathogenic bacteria and pest extermination device 1 according to the first embodiment of the present invention. Such as figure 1 As shown, the pathogenic bacteria and pest extermination device 1 according to the first embodiment of the present invention is composed of a reaction container 2, a gas supply part 3, a water supply part 4, a cathode electrode 5 and an anode electrode 6, and a power supply part 7. The gas supply unit 3 supplies gas to the reaction vessel 2; the water supply unit 4 supplies water mist to the reaction vessel 2; the cathode electrode 5 and the anode electrode 6 are arranged outside the reaction vessel.

[0068] The reaction container 2 is a container made of glass such as quartz glass or an insulator such as resin. The anti-gas pipe 3a is connected with the container 2. Furthermore, a cathode electrode 5 and an anode electrode 6 are arranged on the reaction container 2 . The cat...

no. 2 approach

[0079] image 3 It is a figure which shows the structural example of the pathogenic bacteria and pest extermination apparatus 20 which concerns on 2nd Embodiment of this invention.

[0080] image 3 Shown pathogenic bacteria and pest repelling device 20 and figure 1 The difference of the pathogenic bacteria and pest repelling device 1 is that the structures of the cathode electrode 25 and the anode electrode 26, and the water mist are introduced into the reaction vessel 2 from the cathode electrode 25 side.

[0081] The cathode electrode 25 is configured to include a main body portion 25 a connected to the reaction container 2 and an insertion portion 25 b connected to the main body portion 25 a and inserted into the reaction container 2 . The tip of the insertion portion 25b is formed of a thin tube. The water supply part 4 is formed to introduce water mist into the reaction container 2 through the insertion part 25b. The anode electrode 26 is composed of bundled thin wir...

no. 3 approach

[0087] Figure 5 It is a diagram showing a configuration example of a pathogenic bacteria and pest extermination device 30 according to a third embodiment of the present invention.

[0088] Figure 5 Shown pathogenic bacteria and pest repelling device 30, with figure 1 The difference of the pathogenic bacteria and pest repelling device 1 is that the structure of the cathode electrode 25 and water are introduced into the reaction vessel 2 from the cathode electrode 25 side.

[0089] The cathode electrode 25 has a cylindrical insertion portion 25b inserted into the reaction container 2 and a linear body 25c provided at the tip of the insertion portion 25b and composed of thin wires. The front end portion of the insertion portion 25 b of the cathode electrode 25 and the linear body 25 c are arranged inside the outer coil 8 of the anode electrode 26 wound around the reaction vessel 2 . The pathogen and pest repelling device 30 is formed so that water from the water supply part ...

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Abstract

[Problem] To provide a pathogenic microbe and insect pest extermination method and a pathogenic microbe and insect pest extermination device, which are capable of efficiently generating OH radicals and have excellent pathogenic microbe- and insect pest-exterminating effects. [Solution] Pathogenic microbes or insect pests are exterminated by: introducing water as a water mist, etc. into a reaction vessel (2); supplying a gas for forming a plasma from a gas supply unit (3) to the reaction vessel (2); applying a voltage between a cathode (5) and an anode (6) disposed in the reaction vessel (2) and electrically discharging the gas and generating OH radicals; and irradiating the OH radicals on the objects in which microbes or insects are to be killed. The gas is air, helium or argon, or a mixture of said gases. The amount of OH radicals generated can be controlled by controlling the volume of water mist supplied or the volume of gas supplied.

Description

technical field [0001] The invention relates to a method for expelling pathogenic bacteria and pests, and a device for expelling pathogenic bacteria and pests. Background technique [0002] Conventionally, thin film formation and etching using plasma discharge have been widely used. For example, a thin film of an inorganic metal compound is formed by atmospheric pressure glow discharge plasma (see Patent Document 1). In addition, Patent Document 2 discloses a device in which an analyte is sprayed together with a liquid and introduced into plasma in a plasma analysis device for elemental analysis. [0003] On the other hand, as a method of utilizing plasma, a method of sterilizing air plasma has been developed (for example, refer to Patent Document 3). [0004] In addition, in the field of agriculture, cultivation of vegetables with or without pesticides is practiced. However, in conventional agriculture, pathogenic bacteria and pests in crops cannot be effectively repelle...

Claims

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Application Information

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IPC IPC(8): A01M1/00A01M17/00A01N59/00A01P3/00A01P7/02A01P7/04H05H1/24
CPCH05H2001/466A01N59/00H05H2001/483H05H2001/4667A01M1/2022H05H1/4652H05H1/466H05H1/471
Inventor 金子俊郎加藤俊显
Owner TOHOKU UNIV
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