KR101099590B1 - Method for constructing volcanic stone purifying structure using landfill leachate prevention - Google Patents

Abstract

PURPOSE: A method for constructing a landfill-leachate-leakage preventing purifying structure based on volcanic stone and the structure are provided to naturally purify pollutants based on a porous volcanic stone purifying layer and to prevent the diffusion of soil and water pollution. CONSTITUTION: A quicklime layer(10) is formed on a lower bottom side. A first volcanic stone layer(11) is formed on the quicklime layer. A second volcanic stone layer(12) is formed on the first volcanic stone layer. A pollutant landfill region(13) is arranged in the second volcanic stone layer. Pollutants are arranged in the pollutant landfill region. A third volcanic stone layer is formed on the second volcanic stone layer. A surface layer(15) is formed on the third volcanic stone layer. A plurality U-shape-assembled leachate discharging pipes(16) is installed to pass through the volcanic stone layers and the quicklime layer. A plurality of U-shape-assembled gas discharging pipes(17) is installed at the pollutant landfill region.

Description

Method for constructing Volcanic Stone Purifying Structure Using Landfill Leachate Prevention}

The present invention prevents leachate generated from various landfills (both existing and new), such as landfills of landfills or waste landfills, spills into the surrounding lands and spreads soil and water pollution. The present invention relates to a purification layer structure for preventing the outflow of landfill leachate using a volcanic stone purification layer that is sufficiently natural and stably promotes original recovery of intellect, and a construction method thereof.

As the industry develops, many household wastes and industrial wastes are generated, and incineration, landfill, chemical purification, and recycling are the methods of treating these pollutants according to their types.

The present invention relates to landfill.

Currently, some types of domestic pollutants and environmental and industrial wastes are inevitably screened and buried directly in the soil, and landfill materials have a variety of pollutants generated for a considerable period of time, thus directly or indirectly affecting the surrounding soil and water quality.

In particular, although the impact on life has a lot of problems because it is directly related to the environment and health, it is a technical solution to solve the seriousness such as the spread of pollutants and leachate discharged from various landfills, such as landfills and waste landfills. There is a lack of devices and measures.

Although the landfill treatment method is minimized in consideration of the severity of the landfill environment, the landfilled waste is spoiled, mixed with its own leachate and soaked rainwater, generating harmful gases and leachate, and entering the soil and groundwater. It depends on natural purification.

However, the conventional landfill as described above is expensive because the leachate and toxic gas odor generated by the mixing of rainwater and pollutants are very polluted, it is necessary to provide a multi-step technical treatment device for the leachate and toxic gas purification work, In addition, the concentration and generation of leachate vary greatly depending on the amount of landfill, the type of pollutant, landfill period, and precipitation, which leads to technical difficulties in purifying hazardous substances.

In particular, if the leachate penetrates into the soil around the landfill and spreads, the pollution around the landfill becomes severe, and the soil's original function may be lost, and crop growth may be disturbed. It leads to pollution of groundwater and drinking water, and eventually has a detrimental effect on human body and living environment.

In addition, if the type of landfill pollutants is a dead body such as an animal, landfill gas such as methane and hydrogen sulfide may vary depending on the amount of landfill due to decomposition of organic matters due to corruption. May cause

In addition, it is difficult to collect and discharge the leachate generated from the underground of the landfill sufficiently, and the leachate leaked when the waterproofing facility of the landfill is defective causes pollution of the water system in the neighboring area such as groundwater. Where pollution has progressed, there are many unpredictable problems, such as the inability to collect leachate.

The present invention is to solve the various problems such as soil and water pollution according to the conventional landfill method as described above, the object of the present invention is the land leachate generated from various landfills such as landfills or waste landfill To prevent the spread of soil and water pollution by absorbing and spilling into the soil, and the contaminated part is naturally purified through the reaction with the porous volcanic stone purification layer to prevent the landfill leachate spillage prevention structure using volcanic stones which promotes the original recovery of the intellect. And to provide a construction method thereof.

In the construction method of the landfill leachate leakage prevention structure using the volcanic stone of the present invention for achieving the above object, after excavating the land to a depth wide enough and deeper than the area to fill the contaminants, the bottom surface has a layer of quicklime Stratified, the first volcanic stone layer processed to 2.5-35mm size on the quicklime layer, and the second volcanic stone layer processed to 15-75mm size on the first volcanic stone layer, The contaminant buried area is stratified on the floor, and the contaminant is buried in the contaminant buried area so as to be flat with the secondary volcanic stone layer. On top of the tertiary volcanic stone layer, the epidermal layer is filled with general soil to enable landscaping, such as landscaping, and the epidermal layer manages the volcanic stone layer and quicklime layer. A plurality of discharge leachate yugonggwan and the contaminants buried layer which is characterized by installing a plurality of gas discharge pipe for discharging the gas produced in the buried layer.

The landfill leachate leakage prevention and purification device using volcanic stone of the present invention prevents the leachate generated from various landfills such as biological landfills or garbage waste landfills to be spilled to the surrounding land to prevent soil and water pollution from spreading, and the contaminated portion is porous. Naturally purified through the reaction with volcanic stones, it will stably promote the original recovery of intellect.

In particular, the present invention can maximize the natural purification effect of the porous volcanic stone when applied to the area where pollution problems such as soil, groundwater, odor, etc. directly or indirectly affected by the pollutant, the present invention is another material More eco-friendly and various pollutants pass through the natural purifying layer of porous volcanic stone, so that harmful substances are absorbed and filtered to filter out impurities so that they are naturally clean and clean, so that there is no need for separate post management and removal treatment. In addition, volcanic stone, which is rich in abundant silicon components and other basic natural elements necessary for soil health, can have a good effect on the recovery of existing contaminated soil without discoloration change as well as excellent adsorption and purification ability.

The method of installing the surrounding wall (concrete retaining wall, etc.), which is currently discussed as a countermeasure against leachate leakage, has insufficient ability to purify contaminants when leachate leaks due to groundwater, soil pollution and rainwater inflow. . Thus, this volcanic stone purification layer is not a temporary leachate blocking method but a porous layer purification method to maximize pollutant purification and soil self-cleaning ability.

Even if the leachate (pollutant) is not known exactly, the porous volcanic crystallization layer surrounding the leachate flowing from the pollutant is absorbed, filtered, and purified on all sides, providing only a fundamental solution for the natural purification of contaminated soil and water quality. In addition, the volcanic stone material, which is well fused with the existing soil after a long period of time even in a mixed state with pollutants, promotes the self-cleaning ability of soil microorganisms and plays an appropriate role for environmentally friendly soil recovery.

In addition, depending on the degree of pollution and the type of pollutants, the leachate purification ability can be maximized when the volcanic stone specification and landfill amount are differentially applied.

The present invention provides an eco-friendly solution to the various methods of remediation of contaminated landfills that are currently faced by society, thereby minimizing problems in areas where soil and water pollution is expected, such as contaminated lands around contaminated landfills and landfill leachate runoff. Facilitate management

In addition, the present invention brings the effect of ecological and water purification, rapid soil recovery of landfills and reducing harmful gas generation.

1 is a cross-sectional view of a landfill leachate outflow prevention structure using volcanic stones according to the present invention. (New contaminant landfill side view)
Figure 2 is a relationship between the river and groundwater of the landfill leachate outflow prevention structure according to the present invention of FIG. New bird's eye view of landfill
3 is a cross-sectional view of a leachate leakage prevention structure of an existing landfill using the present invention. (Side view of existing contaminated landfill)
Figure 4 is a plan view of the leachate outflow prevention structure of the landfill according to Figures 1 and 3 (contaminated landfill plan plan).
Figure 5 is a relationship between the existing landfill leachate outflow prevention structure and the river and groundwater according to the present invention of FIG. (Complementary Bird's Eye View of Existing Pollutant Landfill)
6 is a component analysis table of the Korea Chemical Fusion Testing Institute of volcanic stone (RED) applied to the present invention.
Figure 7 is a component analysis table of the Korea Chemical Fusion Testing Institute of volcanic stone (BLACK) applied to the present invention.
8 is a component analysis table of the Korea Chemical Fusion Testing Institute of volcanic stone (WHITE) applied to the present invention.

The present invention relates to landfilling of methods for treating contaminants, such as landfilling, incineration, purification (using chemicals), recycling and the like.

In general, problems such as soil pollution and water pollution harmful gases can be expected as a problem that may occur during the disposal of landfills. In addition, the impact on life as a whole can include odor problems, impact on ecosystems, complaints based on collective self-interest, problems with securing incinerator facilities and landfills, post-treatment other than purification facilities, economic losses, lack of professional manpower, etc. have. In particular, once soil is contaminated, direct environmental problems that remain unrecoverable for decades and various unpredictable pathogenic bacteria such as water pollution of groundwater and water supply can be raised.

The present invention can solve the landfill problems as a porous material that can naturally clean various contaminants such as soil, ecosystem recovery, water purification, etc. using porous volcanic stone that has been heat treated for a long time at high temperature with excellent absorption and purification ability. It is the construction of groundbreaking natural materials.

 1 is a cross-sectional view of a landfill leachate outflow prevention and purification apparatus using volcanic stones according to the present invention, Figure 2 is a landfill leachate outflow prevention and purification apparatus using a volcanic stone according to the present invention of Figure 1 It is a relationship diagram.

As referred to herein, the landfill leachate leakage prevention structure using the volcanic stone of the present invention first excavates the land surrounding the landfill sufficiently wider and deeper than the area for embedding contaminants.

Subsequently, the quicklime layer 10 having a predetermined thickness is formed on the lower bottom surface of the excavated landfill.

The preferred layer thickness of the quicklime layer is about 5 cm and the thickness of the landfill and the amount of contaminants in the landfill can be increased or reduced, and can also be replaced by powder powder (powder) of about 1.5 mm or less.

On the quicklime layer 10, a first volcanic stone layer 11 having a small particle size is formed in a predetermined thickness. The first particle size of the volcanic stone layer 11 is preferably 2.5 ~ 35mm and the layer thickness is preferably about 1m. The particle size and the layer thickness of the first volcanic stone layer 11 can be added or subtracted depending on the nature of the pollutant to be buried therein, the amount of landfill, and the degree of contamination.

After the first volcanic stone layer 11 is formed, a second volcanic stone layer 12 having a relatively large particle size is formed on the second volcanic stone layer to a thickness thicker than that of the first volcanic stone layer. The second volcanic stone layer 12 preferably has a particle size of 15 to 75 mm and a layer thickness of about 2.5 m. The particle size and the layer thickness of the second volcanic stone layer 12 may also be added or subtracted according to the nature of the pollutant to be buried therein, the amount of landfill, and the degree of contamination.

The contaminant buried area 13 may be disposed on the layered second volcanic stone layer 12 according to a situation, and a volcanic stone having the same particle size as the particle size of the second volcanic stone layer is introduced into the surroundings. Thus, the contaminants are flush with the top of the buried area to be buried. In addition, the buried area 13 is surrounded by a volcanic stone layer to a certain thickness. The thickness of the volcanic stone layer surrounding the buried region 13 is preferably about 2 m. That is, the preferable sidewall thickness of a 2nd volcanic stone layer is about 2m, and the preferable layer thickness of this 2nd volcanic stone layer is about 2.5m or more.

Subsequently, after the contaminant is added to the buried region 13, the third volcanic stone layer 14 is formed using volcanic stones having a particle size of the first volcanic stone layer thereon. The preferred stratification thickness of the third volcanic stone layer is about 1 m, which may be added or subtracted depending on the amount of the pollutant or the degree of contamination or the depth of the buried region 13 in which the pollutant is to be embedded.

On the third volcanic stone 14, the skin layer 15 is formed by covering the general soil so that the topography is balanced with the land surface. The soil fill height is not particularly limited but is preferably about 2m.

A plurality of gas discharge pipes 17 are differentially installed at different depths in the landfill area 13 in which the contaminants in the landfill are formed. The gas discharge pipe 17 can be made of a flexible and metallic material according to the site situation, can be manufactured in a U-shaped assembly of about 100mm in diameter, and depending on the conditions can be applied to the pore range of the pipe (pipe).

Accordingly, the gas discharge pipe 17 performs a function of discharging the gas generated as the pollutant decays to the outside.

In addition, a plurality of leachate discharge pipes 16 are formed so as not to penetrate the buried region 13, and the quicklime layer 10 penetrates. The leachate discharge pipe 16 may be manufactured in a flexible and metallic material according to the site situation, and may be manufactured in a U-shaped assembly having a diameter of about 100 mm. The leachate discharge pipe 16 may be formed with a plurality of small pores along the longitudinal direction.

This leachate discharge pipe discharges the purified leachate while pollutants pass through the volcanic stone bed to the outside as needed for water quality inspection purposes.

However, when the leachate flows out of the previously buried contaminant, the leachate absorbs, filters, and purifies the pollutant through different volcanic stone layers with low particle size and high particle size. Even if it flows into rivers and streams, there is little concern about environmental pollution because it is sufficiently purged through the porous layer and discharged.

Referring to the operation of the structure of the present invention thus constructed as follows.

The volcanic stone used in the present invention is hardened into a large and small porous rock of stone type, which has been synthesized in a deep place underground for a long time by synthesizing various materials to maintain an ultra-high temperature, and includes, for example, basalt. In Korea, high-quality volcanic stones are buried in Jeju, etc., and natural minerals are widely distributed in many countries. In particular, the groundwater naturally filtered through such volcanic layers has been fully demonstrated as a perfect water quality (first-class water).

Volcanic stone has a variety of colors, mainly red (Red), black (Black), white (white) mixed colors other than the color and composition of the natural porous and all of the similar components and functions are irrelevant to the application of the present invention.

These volcanic stones are characterized by no alteration, discoloration and odor even after a long time, and contain various functions such as antibacterial insects, odor adsorption, deodorization, air purification, humidity control, water quality soil purification, far infrared emission, and anion generation. have.

In addition, volcanic stone is a light and hard porous natural resource with few harmful impurities to the human body. It is an eco-friendly material with no asbestos components detected in ordinary stones (sand stone), etc.Silicone oxide, aluminum oxide, Al2O3, iron oxide, Fe2O3, It is a natural material based on calcium oxide CaO and magnesium oxide MgO. In particular, the construction area (building insulation insulation, non-combustibility, lightweight aggregate (building weight reduction), asbestos syndrome, asbestos replacement material, insulation insulation material), landscaping material field (indoor and outdoor landscape, urban landscape, rooftop landscape, garden roof) Radiation Heat Prevention, Flower / Plant Cultivation, Soil Enhancer, Soil Cultivation Soil, etc., Water Purification (Filter, Water Treatment Materials, Rainwater Filtration, Oil Absorption Filtration), Life / Health (Antibacterial Deodorant, Humidity Control) Its use in various fields as natural health materials, such as conditioning and beauty ingredients, has been confirmed for a long time in various cases of foreign and domestic.

Volcanic stone is characterized by its solid porosity. More than 94% of the porous pores that make up the volcanic stone have the ability to absorb and control moisture, making it an active space for microorganisms, and are an excellent material for adsorbing and filtering harmful bacteria and odors. In addition, volcanic stone releases negative ions and far-infrared rays to clear air and help all life activities such as humans and plants and animals. In particular, the photocatalytic action of titanium dioxide, which is not present in ocher, jade, elvan, germanium, etc., promotes the reaction with buried contaminants to perform natural purification.

Volcanic stone used in the present invention includes in addition to the natural volcanic stone itself, a composition having the same or similar properties as the composition, for example, a processing composition that can be inferred by various methods other than natural volcanic stone.

For example, it is a filter material for reservoirs, large and small ponds, fountains, downstream golf courses, ponds, lakes, rivers, etc., and processes and manufactures porous volcanic rocks without impurities in various specifications and forms to suit the conditions (use). It can be used to reduce (green algae) and to form a purification layer.

In addition, the volcanic stone landfill leachate spill prevention structure and its construction method can be used as a material and substitute material of volcanic stone such as charcoal, activated carbon, lime, fiber, loess, soil, silica sand, sand, elvan, gravel, bentonite, etc. It is also possible to choose the blending ratio and application depending on landfill conditions.

<Example 1>

Using natural volcanic stone, natural charcoal, and lime, a certain layer is formed on the landfill leachate prevention structure to form a natural purification layer. This purification layer can obtain various effects such as water purification, pollutant absorption and filtration, odor adsorption, deodorization, antibacterial insect repellent, and natural purification.

Figure 3 is a cross-sectional view of a structure for preventing and purifying the leachate outflow of the existing landfill using the present invention volcanic stone, Figure 4 is a plan view of a structure for preventing the leachate outflow of the landfill according to Figures 1 and 3, 5 is a relationship between the river and the groundwater of the landfill leachate outflow prevention structure according to the present invention of FIG.

3 to 5, the contaminant landfill leachate prevention structure shown in Figures 5 to 5 have already described the countermeasures for the existing landfill land pollution progress due to leachate.

Here, excavate the land with a certain width (preferably about 2m) and a certain depth (preferably up to about 3.5m from the bottom of the landfill area) formed along the perimeter of the landfill area 23 where the pollutants are buried. Filling this excavation space with volcanic rocks, calculated in units (mm), prevents and cleanses the spread of contaminants embedded in the land.

That is, as shown in FIG. 3, the quicklime layer is formed in a lower thickness at the bottom of an excavation space such as a cylindrical shape or a rectangular cylindrical shape formed around the buried region 23.

The preferred layer thickness of the quicklime layer is about 5 cm and can be increased or decreased depending on the soil quality of the landfill, and can also be replaced with a powder layer of powder less than 1.5 mm of volcanic stone.

On the quicklime layer, a first volcanic stone layer 21 having a small particle size is formed in a predetermined thickness. Here, the preferred particle size of the first volcanic stone layer 21 is 2.5 to 35 mm and the layer thickness is preferably 1 m. The particle size and the layer thickness of the first volcanic stone layer 21 can be added or subtracted according to the nature or degree of contamination of the pollutant to be buried therein.

After the first volcanic stone layer 21 is formed, a second volcanic stone layer 24 having a relatively large particle size is formed on the second volcanic stone layer with a thickness thicker than that of the first volcanic stone layer. In this case, the preferred size of the second volcanic stone layer 24 may be 15 to 75 mm, and the layer thickness thereof may be about 2.5 m. The particle size and the layer thickness of the second volcanic stone layer 24 may also be added or subtracted according to the nature of the pollutant to be buried therein, the amount of landfill, and the degree of contamination.

The stratified second volcanic stone layer 24 is disposed on the contaminant buried region 23 with a waterproof body or a filtration function enclosure, and volcanic stones having the same particle size as the particle size of the second volcanic stone layer 24 are disposed therein. Ensure that the contaminants are flush with the top height of the landfill area to be landfilled. As a result, the buried region 23 is formed to be surrounded by a volcanic stone layer with a predetermined thickness. The thickness of the second volcanic stone layer 24 surrounding the buried region 23 is preferably about 2.5 m or more.

Thereafter, the landfill area 23 is formed to cover the general soil so that the topography is balanced with the land surface to form the skin layer 25. General soil fill height is not particularly limited, but about 2m is preferred.

Therefore, the excavation space is formed with a predetermined width and a predetermined depth along the circumference of the landfill area 23 of the existing landfill which has already undergone soil contamination, and then the quicklime layer and the first and second volcanic stones 21 and 24 are added to the landfill area. A side wall surrounding the periphery is formed, and a plurality of gas discharge pipes 27 are differentially installed at different depths in the buried region 23 in which the contaminants in the landfill are formed. The gas discharge pipe 27 is flexible and can be manufactured and installed in a metal material according to the site situation, and can be manufactured in a U-shaped assembly having a diameter of about 100 mm. Depending on the circumstances, the pore size of the discharge pipe can be determined.

Accordingly, the gas discharge pipe 27 performs a function of discharging the gas generated while the pollutant is decayed to the outside.

In addition, a plurality of leachate discharge pipes 26 are formed so as not to penetrate the buried region 23 and penetrate the quicklime layer. That is, a plurality of leachate discharge pipes 26 for discharging the leachate leached through the first and second volcanic stone layers and the quicklime layer surrounding the buried region 23 and below the quicklime layer are installed. It can be manufactured and installed in metal material and can be manufactured and installed in U-shaped assembly of about 100mm in diameter. The leachate discharge pipe 26 may be formed with a plurality of small pores along the length direction, it is possible to determine the pore range of the discharge pipe according to the conditions.

The leachate discharge pipe discharges the purified (or leaked) leachate to the outside as needed for water quality inspection while contaminants pass through the quicklime layer and the volcanic stone layer.

However, even though the leachate flows out of the previously buried pollutants and the leachate flows into the surrounding waterways, the groundwater 31 or the river 20, the groundwater, rivers, streams, With farm water, pollution of river or sea water can be minimized.

 Soil acidification problems caused by herbicides and various pesticides (crops, golf course turf), which are repeatedly sprayed on the ground every year, have reached a serious situation. In rainy weather, these residual chemicals flow into soil, waterways, and streams, directly affecting the water system and overall life.

Therefore, by creating an eco-friendly natural purification layer using volcanic stones of this material, by applying the shape and particle size of volcanic stone or volcanic stone processing composition in consideration of the depth and flow rate of the river, reservoir, farm water channel, and downstream of golf course, Water filtration and purification, and soil function recovery can be maximized.

In addition, it is the most suitable natural material for natural purification of landfill and surrounding soil and groundwater pollutants exposed to various microorganisms and germs.

On the other hand, the natural volcanic stone applied to the present invention is a hard porous natural mineral of more than 94% formed at high temperatures, even when applied to any one of the ground underground water, has excellent self-cleaning ability to absorb, filter, and purify polluted soil. As the most environmentally friendly material that can restore water quality, it is suitable for the recovery of contaminated soil such as water purification and prevention of soil acidification.

The raw material of Volcanic Stones is formed of natural materials, is a natural resource free from impurities generated by long-term heat treatment at high heat, and is a natural material harmless to humans without porous asbestos components.

In addition, volcanic stone can be used not only for multi-purpose use such as soil function recovery, water purification, pollutant absorption, plant cultivation (greening) of underground contaminated landfill, but also as natural filter for natural water purification and natural filtration.

In addition, the volcanic stone has a natural purification and water purification power of pollutants, light and hard rock natural countless porous forms, environmentally friendly natural resources that do not deform for a long time, can significantly reduce the manpower and material management costs.

In addition, volcanic stone is a weak alkaline component, which is a new material suitable for soil acidification, soil improvement, and ecological restoration, and contains rich silicon and minerals to provide natural nutrition of soil.
In addition, volcanic stone is a natural resource that can be grown without pollution in paddy fields, fields, orchards, flowers, aphids, etc.

In addition, volcanic stone is versatile crop cultivation, pollution-free, healthy plant growth and non-toxic harmless odorless.

On the other hand, there is a possibility that some of the toxic gases appearing among the various problems emitted during the various kinds of pollutants decay process exist. Thus, as described above, a porous volcanic stone layer formation method can reduce the emission of toxic gases and exit the formation layer. Exhaust gas has a considerable technical porosity such that the concentration of harmful substances is considerably lowered and the effect on the environment is insignificant.

For example, some countermeasures were discussed during the Soviet Union's Chernobyl nuclear nuclear accident on April 26, 1986, but the main materials used as an evolutionary method to minimize problems at the time were mud, sand, lead, dolomite, and boron. It has been found that cleansing and other natural minerals were combined with water and administered by helicopter.

The porous volcanic stone of this material is a volcanic ore material with superior porosity in absorption, contaminant filtration, and purification ability than the material used at the site of Chernobyl nuclear accident. Because it can be applied without any special classification according to the material, there is no possibility of causing a second environmental problem.

As a solution to minimize these problems, natural fossils are differentially applied, directly landfilled, and charged according to the pollution level and site conditions.

According to the present invention, when the hardness is required, the volcanic stone and the portant cement are mixed and applied in an appropriate amount, so that problems such as noxious gas, radioactivity, and leakage can be solved at once with sufficient self-cleaning power and solid barrier properties. It is the construction method of the material.

In addition, as the generation of pollutants increases, it is the construction method of this material that can achieve the best effect at the minimum cost in order to reduce both the impact of human properties and economic losses.

10: quicklime layer 11, 21: first volcanic stone layer
12,24: second volcanic stone layer 13, 23: landfill area
14: 3rd volcanic stone layer 15, 25: skin layer
16, 26: leachate discharge pipe 17, 27: gas discharge pipe
20, 30: river 31: groundwater
28: contaminated area 29: soil

Claims (7)

Excavate the land to a depth wider and deeper than the area to fill the contaminants, and then lay a layer of quicklime 10 of thickness on the bottom surface,
Lay a first volcanic stone layer 11 on this quicklime layer,
Stratifying the second volcanic stone layer 12 such that a contaminant buried region is located inside the first volcanic stone layer,
After filling the contaminant in the contaminant embedding region so as to be flat with the second volcanic stone layer, the third volcanic stone layer 14 is laminated thereon to a predetermined thickness,
On the third volcanic stone layer, the epidermal layer 15 is filled with soil to enable landscaping.
The skin layer is provided with a plurality of leachate discharge pipe 16 made of U-shaped assembly penetrating the first, second, third volcanic stone layer and quicklime layer,
Construction of a purification layer structure for preventing landfill leachate spillage using volcanic stones, characterized in that a plurality of gas discharge pipes (17) made of U-shaped assembly are installed in the contaminant buried area to discharge the generated gas. Way.
The method of claim 1,
The particle size of the volcanic stone for the first and third volcanic stone strata is 2.5 ~ 35mm,
The volcanic stone size of the second volcanic stone strata is 15-75mm,
The stratification thickness of the first and third volcanic stone layers is 1 m,
The sidewall thickness of the second volcanic stone layer surrounding the buried area is 2m,
A method of constructing a purification layer structure for preventing landfill leachate spillage using volcanic stones, characterized in that the layer thickness of the second volcanic stone layer below the buried region is 2.5 m.
delete delete A landfill area in which contaminants are buried;
An excavation space that is wider and deeper than the area to be contaminated,
A quicklime layer of quicklime that is deposited on the bottom surface of the excavation space;
A first volcanic stone layer stratified on the quicklime layer,
A second volcanic stone layer on which the contaminant buried region is located on the first volcanic stone layer;
A third volcanic stone layer which is deposited in a contaminant buried region so as to be flat with the second volcanic stone layer, and is laminated on the substrate with a predetermined thickness;
An epidermal layer deposited into the soil to enable landscaping on the third volcanic stone layer;
A plurality of leachate discharge pipe made of U-shaped assembly penetrating the first, second, third volcanic stone layer and quicklime layer in the skin layer,
The purification layer structure for preventing landfill leachate spillage using volcanic stones, characterized in that a plurality of gas discharge pipe made of U-shaped assembly having different depths for discharging the gas generated in the contaminant buried area. delete delete

Images