KR102111066B1 - Method for preparing lumber using tree died by pine wilt disease - Google Patents

Abstract

The present invention relates to a method for manufacturing a wood material using dead tree due to Bursaphelenchus xylophilus disease, and more specifically to a method for manufacturing a wood material using dead tree due to Bursaphelenchus xylophilus disease, which can manufacture a wood material which can be used as a construction material, etc. using dead tree due to Bursaphelenchus xylophilus disease, thereby improving economic efficiency; and chemically treats the dead tree due to Bursaphelenchus xylophilus disease with percetic acid and chemically treats the same with Morantel tartrate, such that mold contaminating Bursaphelenchus xylophilus and the dead tree can be effectively removed without deformation of the dead tree. Accordingly, a value of the wood material can be improved.

Description

Method for preparing lumber using tree died by pine wilt disease}

The present invention relates to a method of manufacturing wood using pine tree nematode disease, more specifically, by using wood that is discarded pine tree nematode disease to manufacture wood that can be used as a construction material, etc., to improve economic efficiency, pine tree Pine wilt disease that can improve the value of wood by effectively removing pine re-nematode and mold contaminating the old tree without deforming the old tree by performing chemical treatment with peracetic acid and chemical treatment with Moranteltrate on the old tree It relates to a method of manufacturing wood using dead wood.

Pine is an evergreen coniferous tree of the coniferous tree, the pine family. It grows all over Korea except for the northern highlands, and suffers a lot of damage from pine nematode disease. Pine nematode disease is a disease caused by pine nematodes, which are parasites that eat parasites and gnaw trees, and the pine nematodes parasitize on the larvae, such as pine brine, and beard beetle, and are transferred to the trees through the vector. However, pine wilt disease has no treatment method so far, and the infection can be confirmed only with the naked eye, so many pine trees are killed by pine wilt disease. Therefore, various methods have been tried to use the pines killed by the pine wilt disease, and in general, the pine wilt disease is killed by using heat treatment of the pine wilt disease, as in the following patent literature, and then the firewood is used.

<Patent Document>

Publication Patent Publication No. 10-2009-0011397 (published on Feb. 02, 2009) "How to recycle pine tree nematode disease and suspicious trees"

However, the conventional method of treating the pine tree nematode disease has a problem in that the use of the dead tree is limited because the dead tree is deformed after the heat treatment by focusing only on killing the pine tree nematode through heat treatment.

The present invention is to solve the problems of the prior art described above,

An object of the present invention is to provide a method of manufacturing wood using pine wood wilt disease pine wood, which can improve economic efficiency by manufacturing wood that can be used as construction materials, etc. using scrap wood pine wilt disease wood.

In addition, the present invention performs the chemical treatment with peracetic acid and chemical treatment with Moranteltrate on the pine tree nematode dead tree, effectively removing the fungus contaminating the pine tree nematode and the dead tree without deformation of the dead tree, the value of wood The purpose of the present invention is to provide a method of manufacturing wood using pine tree nematode deadwood, which can improve the quality.

The present invention is implemented by an embodiment having the following configuration in order to achieve the above object.

According to an embodiment of the present invention, a method for producing wood using pine tree nematode disease according to the present invention includes a step of obtaining a tree by cutting pine tree nematode disease and obtaining a log, and processing a dilution of moranteltrate on the tree. It characterized in that it comprises a morantel tartrate treatment step.

According to another embodiment of the present invention, the method of manufacturing wood using pine tree nematode according to the present invention comprises a peracetic acid treatment step of processing a peracetic acid dilution solution on the wood obtained in the raw material acquisition step, and the peracetic acid treatment step. Further comprising a drying step of drying the treated wood, the moranteltartrate treatment step is characterized in that the moranteltrate dilution is treated to the wood dried in the drying step.

According to another embodiment of the present invention, in the method for manufacturing wood using pine tree nematode disease according to the present invention, the pine tree nematode disease tree is characterized by being secondaryly infected by fungi.

According to another embodiment of the present invention, in the method of manufacturing wood using pine tree nematode pine tree according to the present invention, the peracetic acid diluent is a peracetic acid diluent mixed with peracetic acid to have a concentration of 0.8 to 1.2%. It is characterized by being used.

According to another embodiment of the present invention, in the method for producing wood using pine tree nematode disease according to the present invention, the peracetic acid treatment step is immersing the raw material in a peracetic acid diluent for 25 to 35 seconds, or peracetic acid on the raw material. It is characterized in that it is carried out by spraying the diluted solution for 25 to 35 seconds.

According to another embodiment of the present invention, in the method of manufacturing wood using pine tree nematode pine tree according to the present invention, the moranteltrate treatment step is carried out by depressurizing and pressurizing the wood after dipping it in a distilled solution of moranteltrate. It is characterized by being performed by performing.

According to another embodiment of the present invention, in the method for manufacturing wood using pine tree nematode pine tree according to the present invention, the dilution of the Moranteltartrate is made by mixing Moranteltrate in water to have a concentration of 6 to 10%. It is characterized in that a dilution of moranteltrate is used.

According to another embodiment of the present invention, in the method for manufacturing wood using pine tree nematode pine tree according to the present invention, the moranteltrate treatment step is carried out by dipping the wood in a distilled moranteltrate solution to 0.1 MPa 1 It is characterized in that it is performed by removing the air present in and between the cells of the wood by depressurizing for a period of time, and pressing for 1.5 hours at 1.5 MPa to infiltrate the moranteltrate diluent between the cells and the cells of the wood.

The present invention can obtain the following effects by the present embodiment.

The present invention has an effect that can improve the economic efficiency by manufacturing wood that can be used as building materials using the old pine tree wilt disease wood.

In addition, the present invention performs the chemical treatment with peracetic acid and chemical treatment with Moranteltrate on the pine tree nematode dead tree, effectively removing the fungus contaminating the pine tree nematode and the dead tree without deformation of the dead tree, the value of wood It has the effect of improving.

1 is a photograph showing wood produced by a method of manufacturing wood according to an embodiment of the present invention.
2 and 3 are photographs for confirming the degree of contamination of wood produced by a method of manufacturing wood according to another embodiment of the present invention.

Hereinafter will be described in detail with reference to the accompanying drawings, a method of manufacturing wood using pine tree nematode dead tree according to the present invention. Unless otherwise specified, all terms in this specification are the same as the general meaning of the term understood by a person skilled in the art to which the present invention belongs, and if there is a conflict with the meaning of the term used in the present specification, It follows the definition used in the specification. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted. Throughout the specification, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless otherwise stated.

Referring to Figures 1 to 3 of the method of manufacturing wood using pine tree nematode dead tree according to an embodiment of the present invention, the method of manufacturing the wood is a wood harvesting step, a peracetic acid treatment step, a first drying step, a peony And a tartrate treatment step, a second drying step, and the like. The pine tree nematode disease dead tree refers to a pine tree that has been pinched by a pine tree nematode disease, and is mostly secondaryly infected by fungi such as blue mold and Fusarium. In the case where the conventional pine wilt disease old tree is simply heat-treated as in the prior art, deformation of the heat treated pine tree cannot be used as a construction material, and mold contaminated with pine wilt disease pine tree is not completely removed by heat treatment. There is a problem of later damaging old trees and impairing the appearance, and the present invention was completed to manufacture woods that can be used as building materials, etc. by using old pine trees that are secondarily infected by fungi. This will be described in detail below.

The wood harvesting step is a step of obtaining a wood having a predetermined diameter and length by cutting pine dead wood.

The peracetic acid treatment step is a step of processing a peracetic acid diluent on the wood obtained in the raw material obtaining step, for example, it can be performed by spraying the peracetic acid diluent on the hardwood or immersing the hardwood in peracetic acid dilution for a certain period of time, and Dilute peracetic acid is used in which acetic acid is mixed with water to have a concentration of 0.8 to 1.2%, and it is preferable to spray or immerse for 25 to 35 seconds.

The first drying step is a step of drying the wood treated in the peracetic acid treatment step, for example, it may be performed by drying naturally or drying for 160 to 400 minutes using an oven set at 50 ° C. If the wood is not properly dried in the drying step, the strength of the manufactured wood is weakened or the appearance is deteriorated.

The morrantel tartrate treatment step is a step of treating a morantel tartrate diluent on the wood dried in the first drying step, for example, after loading the wood in a moranteltrate dilution, decompression and pressurization. Put in a conventional device to perform the decompression for 1 hour at 0.1 MPa to remove the air present in the cells and between the cells, and then pressurized at 1.5 MPa for 1 hour to infiltrate the moranteltrate dilution between the cells and the cells. Can be performed. In the step of treating the morrantel tartrate, a dilution of the morrantel tartrate may be used by mixing the morrantel tartrate with water to have a concentration of 6 to 10%. Unlike other materials that are soluble in organic solvents, the peony deltarate does not contaminate the raw wood by recording in water, thereby improving the value of the manufactured wood.

The second drying step is a step of drying the wood treated in the morrantel tartrate treatment step, for example, it may be performed by drying naturally or drying for 160 to 400 minutes using an oven set at 50 ° C.

Hereinafter, the present invention will be described in more detail through examples. However, these are only for explaining the present invention in more detail, and the scope of the present invention is not limited thereto.

<Example 1> Preparation of wood samples

1. Prepare a log by cutting the dead tree of pine wilt disease where blue mold is growing, immerse the log in a 1% peracetic acid solution for 30 seconds, take it out and dry it for 250 minutes using an oven set at 50 ℃. The old wood was immersed in an 8% aqueous moranteltrate solution, put in a pressurizer, depressurized at 0.1 MPa for 1 hour, and then pressurized at 1.5 MPa for 1 hour. Then, the wood was taken out of the aqueous solution of morantel tartrate and dried for 250 minutes using an oven set at 50 ° C. to obtain wood sample 1. FIG. 1 is a photograph of a wooden target 1.

2. Prepare the raw wood by cutting the pine tree nematode disease tree growing blue mold, immerse the raw material in 1% peracetic acid solution for 30 seconds, take it out and dry it for 250 minutes using an oven set at 50 ℃. The old wood was immersed in an 8% aqueous moranteltrate solution. Thereafter, the wood was taken out of the aqueous solution of morantel tartrate and dried for 250 minutes using an oven set at 50 ° C to obtain wood sample 2.

3. Prepare the raw wood by cutting the pine tree nematode disease tree growing blue mold, immerse the raw material in 1% peracetic acid solution for 30 seconds, take it out and dry it for 250 minutes using an oven set at 50 ℃. 3 was obtained.

4. Prepare the log by cutting the dead tree of the pine wilt disease where the green mold grows, immerse the log in an 8% aqueous Moranteltrate solution, put it in a pressurizer, decompress it for 1 hour with 0.1 MPa, and 1.5 MPa for 1 hour. Pressurized. Then, the wood was taken out of the aqueous solution of morantel tartrate and dried for 250 minutes using an oven set at 50 ° C. to obtain wood sample 4.

5. Prepare the log by cutting the dead tree of pine wilt disease where the blue mold grows, immerse the log in an 8% aqueous Moranteltrate solution, put it in a pressurizer, depressurize it for 1 hour at 0.1 MPa, and then 1.5 MPa for 1 hour. It was pressurized, and the wood was taken out of an aqueous moranteltrate solution and dried for 250 minutes using an oven set at 50 ° C. Thereafter, the dried wood was immersed in a 1% peracetic acid aqueous solution for 30 seconds, then taken out and dried for 250 minutes using an oven set at 50 ° C to obtain a wood sample 5.

6. A wood sample 6 was obtained under the same conditions as in Example 1 except that a 0.5% aqueous peracetic acid solution was used instead of a 1% aqueous peracetic acid solution.

7. The pine tree nematode disease growing tree with blue mold was cut to prepare the raw wood, and the raw wood was used as the wood sample 7.

8. A pine tree nematode disease growing tree with blue mold was cut to prepare the raw wood, and the raw wood was treated with high pressure steam at 121 ° C. for 2 hours using an autoclave to obtain a wood sample 8.

<Example 2> Exterior inspection of wood samples

1. Wood samples were inspected for appearance. In the external inspection, after inspecting the wood samples 1 to 8 with the naked eye, it was determined whether deformation, contamination (whether there is mold on the surface), or stains (whether a part having a different color exists inside the wood).

2. Referring to FIG. 1 and Table 1, it can be seen that the deformation does not occur when the raw material obtained from the dead tree of the pine wilt disease where blue mold is growing is not heat-treated. In addition, when the darkening and pressure are not applied during the treatment of the morrantel tartrate, only a part of the aqueous solution of the morrantel tartrate penetrates into the inside of the wood, and it can be seen that staining occurs. In the case of, it can be seen that the mold existing on the surface penetrated into the wood and stained.

transform pollution stain Wood Sample 1 × × × Wood Sample 2 × × ○ Wood Sample 3 × × × Wood Sample 4 × × ○ Wood Sample 5 × × ○ Wood Sample 6 × × × Wood samples 7 × ○ × Wood Sample 8 ○ × ×

<Example 3> Confirmation of contamination of wood samples

1. For each wood sample 1, 4, 6 and 7 obtained in Example 1, a hole (25 cm ² ) was formed using a drill, and sawdust was collected to a depth of 10 cm from the top surface, and then 10 ml of each sawdust and sterile water Put 30ml in 50ml Conical Tube, vortex and apply 200µl of supernatant to potato agar medium (PDA), 7 days later, photographed and shown in Figs. 2 and 3 (in the case of Fig. 2, use sawdust from wood sample 1, In the case of FIG. 3, sawdust obtained from wood sample 7), and the type of colony (contamination) growing, the number of colonies, and the area of contamination are recorded and shown in Table 2.

2. Referring to FIGS. 2, 3, and 2, when 1% peracetic acid aqueous solution was treated and 8% moranteltrate aqueous solution was treated with respect to the wood obtained from the pine wilt diseased tree with blue mold growing, no pollution occurred. On the other hand, when only the aqueous solution of moranteltrate was treated, it was confirmed that contamination occurred when the concentration of the aqueous peracetic acid solution was low.

 Colony type  Colony Count Contaminated area (%) Wood Sample 1 0 0 0 Wood Sample 4 One 15 35 Wood Sample 6 One 4 15 Wood samples 7 One 50 100

<Example 4> Confirming the nematode present in the wood sample

For each of the wood samples 1, 2, 3, 7 and 8 obtained in Example 1, a hole (25 cm ² ) was formed using a drill, and sawdust was collected to a depth of 10 cm from the top surface, and then pine needle nematodes were used using Baerman Funnel. As a result of detection, pine wilt was not detected in sawdust of wood samples 1 and 8, but re- nematode was detected in sawdust of wood samples 2, 3 and 7. Through this, it can be seen that 1% peracetic acid aqueous solution and 8% moranteltrate aqueous solution were treated with respect to the wood obtained from the dead tree of the pine wilt disease where blue mold is growing. In addition, in the case of the wood sample 2, it was confirmed that all the nematodes were not killed because the aqueous solution of the moranteltrate did not penetrate to the inside of the wood because pressure and pressure were not applied during the treatment of the aqueous solution of the moranteltrate.

In the above, the applicant has described the preferred embodiments of the present invention, but these embodiments are only one embodiment for implementing the technical concept of the present invention and any modification or modification of the present invention as long as the technical concept of the present invention is implemented It should be construed as being within the scope.

Claims (8)

A wood harvesting step of obtaining a log by cutting dead trees of pine wilt disease secondaryly infected by fungi; It includes a drying step of drying the wood treated in the peracetic acid treatment step, and a moranteltrate treatment step of processing a distilled solution of the moranteltrate produced by mixing the wood dried in the drying step with moranteltrate and water. ,
The Morantel tartrate treatment step is a method for producing wood using pine tree nematode deadwood, characterized in that the raw wood is carried in a dilution of the Moranteltartrate, first depressurized and later pressurized. delete delete The method of claim 1, wherein the peracetic acid diluent
Method for producing wood using pine tree nematode deadwood, characterized in that a dilute peracetic acid is used in which peracetic acid is mixed with water to have a concentration of 0.8 to 1.2%. According to claim 1, wherein the peracetic acid treatment step
A method for producing wood using pine tree nematode dead tree, characterized in that the raw wood is immersed in dilute peracetic acid for 25 to 35 seconds or sprayed with dilute peracetic acid for 25 to 35 seconds. delete The method of claim 1, wherein the morantel tartrate dilution
A method for producing wood using pine tree nematode deadwood, characterized in that a dilution of Moranteltartrate is used in which Moranteltrate is mixed with water to have a concentration of 6 to 10%. The method of claim 1, wherein the Morantel tartrate treatment step
After immersing the wood in a distilled solution of moranteltrate, the pressure was reduced to 0.1 MPa for 1 hour to remove the air present in the cells and between the cells, and pressurized at 1.5 MPa for 1 hour to give the peony between the cells and within the cells. Method for producing wood using pine tree nematode dead tree, characterized in that it is performed by allowing the teltate dilution to penetrate.

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