JP3735850B2 - Waste disposal methods - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for disposing incinerated ash and other powdered waste.
[0002]
[Prior art]
General waste is reduced, stabilized, and detoxified in the intermediate treatment, and finally disposed of, but as an intermediate treatment method, the perishable organic substances in the garbage are decomposed and converted into stable inorganic substances. In addition, incineration that can be reduced to about 10% in volume is a very effective means. In addition, as for industrial waste, the amount that can be burned is generally reduced by incineration, and then the incinerated ash that is the residue is landfilled.
[0003]
[Problems to be solved by the invention]
However, due to the nature of industrial waste, such incineration ash may contain harmful substances, and when incineration ash rises as dust and disperses in the atmosphere during landfill disposal, it may harm workers' health and cause environmental problems. It will be.
[0004]
Therefore, when performing such input work, it is necessary to select a calm day without wind, but as a result, depending on the weather conditions, the input work must be stopped, which impedes the landfill disposal plan. It was causing the problem.
[0005]
The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a waste disposal method capable of performing landfill disposal of incinerated ash without being influenced by weather conditions.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the waste disposal method according to the present invention, as described in claim 1, contains only incineration ash generated in a garbage incineration facility in a bag body made of a water shielding material, The opening formed in the bag body for sealing the incineration ash is sealed, and the bag body containing the incineration ash is transported to a final disposal site where a water shielding sheet is laid on the bottom, the final disposal site The bags are sequentially buried in the landfill space.
[0007]
In the waste disposal method according to the present invention, when the bag body is landfilled, soil covering is performed on the bag body at a certain landfill height while the bag body is landfilled.
[0009]
In the waste disposal method according to the present invention, the powdered waste is not directly landfilled, but landfilled after the powdered waste is accommodated in a bag prepared in advance. In this way, when the powdery waste is put into the landfill space, there is no possibility that the waste rises as dust and is scattered in the atmosphere.
[0010]
In the present specification, the term “powdered waste” refers to only incineration ash. Moreover, it does not matter whether the landfill disposal site is land landfill or water surface landfill.
[0011]
As for the bag body, its shape, dimensions, material, etc. are arbitrary. However, when it is made of a water-impervious material, rainwater does not enter the bag body, and moisture in the powdered waste is not contained in the bag body. It does not leak outside.
[0012]
The process of storing the powdery waste in the bag can be performed, for example, at a landfill disposal site, but if it is performed at a powdery waste generation site, for example, a garbage incineration facility, from the generation site. The powdered waste material is prevented from being scattered during the unloading, transporting, and loading into the landfill disposal site.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a waste disposal method according to the present invention will be described with reference to the accompanying drawings.
[0014]
FIG. 1 is a diagram illustrating a waste disposal method according to the present embodiment. As can be seen from the figure, in the waste disposal method according to the present embodiment, first, the incinerated ash 2 as a powdery waste generated in a garbage incineration facility (not shown) is shown in the bag shown in FIG. Housed in body 1.
[0015]
The incineration ash 2 that is an incineration residue may be one in which general waste has been incinerated, or one in which industrial waste has been incinerated.
[0016]
The bag body 1 is made of a water-impervious material, for example, a vinyl-based material or a polyethylene-based material, and prevents rainwater from entering inside, and moisture contained in the incinerated ash 2 flows out to the outside. Is to prevent.
[0017]
When the incinerated ash 2 is accommodated, the opening 3 formed in the bag body 1 is opened to put the incinerated ash 2 and then the opening 3 is sealed by a method such as welding.
[0018]
Next, the bag body 1 containing the incinerated ash 2 is transported to the final disposal site, and the bag body is sequentially buried in the landfill space 6 of the final disposal site 5 as shown in FIG. And if it becomes fixed landfill height, a soil covering will be performed on the bag body 1, and a landfill disposal is repeatedly performed in the same procedure below.
[0019]
As described above, according to the waste disposal method according to the present embodiment, when the incineration ash 2 is put into the landfill space 6 of the final disposal site 5, the incineration ash rises as dust and is scattered in the atmosphere. The risk of doing so is eliminated.
[0020]
For this reason, it is possible to avoid a situation in which an operator inhales the dust of the incinerated ash 2 to harm the health, or is scattered in the atmosphere and adversely affects the environment. Moreover, since it becomes possible to perform the landfill injection | pouring operation | work of the incinerated ash 2 without being influenced by a weather condition, the whole landfill disposal plan is not delayed. Needless to say, the situation where the incinerated ash buried in the land is beaten by a strong wind and scattered in the atmosphere is prevented.
[0021]
Further, since the bag body 1 is formed of a water-impervious material, rainwater does not enter the bag body, and the moisture of the incinerated ash 2 does not flow out of the bag body 1. Therefore, even if the incinerated ash 2 contains harmful substances, there is no risk of the harmful substances flowing out of the bag body 1 and the water shielding sheet 7 ( Combined with the water shielding function shown in Fig. 1 (b), the safety against diffusion into the groundwater system is further improved.
[0022]
In addition, since the container 1 is stored in the garbage incineration facility, the incineration ash 2 is incinerated when it is transported from the garbage incineration facility, during transportation, and when it is transported into the final disposal site. Ashes can be prevented from scattering.
[0024]
In the present embodiment, the landfill disposal site is land, but it may be water surface landfill instead of landfill.
[0025]
In this embodiment, the bag body is made of a water-impervious material. However, it is not always necessary to make the bag body made of a water-impervious material. The same effect as that of the above-described embodiment can be obtained in that the waste state can be prevented from rising.
[0026]
Further, in the present embodiment, the incineration ash 2 is stored in the garbage incineration facility. However, the operation may be performed after being carried into each waste disposal site. Even in such a configuration, the same effects as those of the above-described embodiment can be obtained in that the incineration ash can be prevented from rising when being introduced into the landfill space.
[0027]
Further, in this embodiment, every time the landfill height reaches a certain level, the soil is covered as in normal landfill disposal. However, by storing the waste in a bag, the waste itself after landfilling Since scattering or scattering of odors generated from the waste is prevented, the scale of the covering soil can be reduced, and in some cases, the covering soil can be omitted.
[0028]
【The invention's effect】
As described above, according to the waste disposal method according to the present invention, when the powdery waste is put into the landfill disposal place, there is no possibility that the waste will rise as dust and be scattered in the atmosphere. Therefore, it is possible to improve the work environment, and it is possible to perform landfill input work of powdery waste without being influenced by weather conditions.
In addition, according to the waste disposal method according to the present invention, even if a toxic substance is contained in the powdery waste, there is no risk that the toxic substance flows out of the bag body, There is also an effect that safety against diffusion into the groundwater system is further improved.
Further, according to the waste disposal method of the present invention, it becomes possible to prevent the waste from being scattered even when the powdered waste is carried out, carried, and carried into the landfill disposal site. The handling of time etc. becomes easy.
[0029]
Further, according to the waste disposal method of the present invention according to claim 2, in addition to the effect of claim 1, even if a hazardous substance is contained in the powdery waste, the hazardous There is no risk of the substance flowing out of the bag body, and the effect of further improving the safety against diffusion into the groundwater system is also achieved.
[0030]
Further, according to the waste disposal method of the present invention according to claim 3, in addition to the effect of claim 1, the powdery waste is also carried out at the time of carrying out, carrying, and carrying to the landfill disposal site. It becomes possible to prevent the scattering of waste, and handling at the time of carrying out becomes easy.
[0031]
[Brief description of the drawings]
FIG. 1 is a diagram showing a waste disposal method according to the present embodiment, (a) is a perspective view showing a state in which incineration ash is put in, and (b) is a bag containing incineration ash. The vertical sectional view which showed a mode that the body was reclaimed in the landfill space of a final disposal site.
[Explanation of symbols]
1 Bag 2 Incinerated ash (powder waste)
5 final disposal site (landfill disposal site)

Claims (2)

  Only the incineration ash produced in the garbage incineration facility is accommodated in a bag body made of a water-blocking material, the opening formed in the bag body for sealing the incineration ash is sealed, and the incineration ash is accommodated A waste disposal method, wherein the bag body is transported to a final disposal site where a water-impervious sheet is laid on the bottom surface, and the bag body is sequentially landfilled in a landfill space of the final disposal site.   The waste disposal method according to claim 1, wherein when the bag body is landfilled, soil is covered on the bag body at a certain landfill height while the bag body is landfilled.

Images