JPH11128867A - Waste disposal site - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] The amount of leachate that needs to be treated to be released to public waters by separating and collecting rainwater and leachate is significantly reduced, and management costs are significantly reduced. Obtain reduced waste disposal sites such as managed waste final disposal sites. SOLUTION: A leachate drainage groove 3 divided into a plurality of sections by a partition wall 2 and having an open upper part at one end side of each section Z, and a rainwater drainage groove opened upward in juxtaposition with the leachate drainage groove 3. 4 is provided, and a roof 30 provided with a rainwater collecting pipe that collects rain falling over the upper part of the section and guides the rainwater to the rainwater drainage groove 4 is provided so as to be movable for each section so that the roof 30 faces the upper surface of the opening of the rainwater drainage groove 4. The rainwater guide lids 10 and 11 are detachably mounted on the upper surface of the leachate drainage groove 3 so that rainwater and leachate discharged from each section can be separated and collected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste disposal site such as a managed waste final disposal site, and separates rainwater and leachate discharged from a waste disposal site into a public water area. The present invention relates to a waste disposal site that can significantly reduce the amount of leachate that needs to be treated to discharge water, and thus can significantly reduce the management cost of the waste disposal site.

[0002]

2. Description of the Related Art In a conventional managed waste final disposal site, rainwater that falls in the disposal site is collected together with leachate in the disposal site, and is subjected to appropriate treatment such as COD removal, BOD removal, or heavy metal removal treatment. And discharged into public waters such as rivers or seawater.

[0003]

As described above, in the conventional controlled waste final disposal site, the rainwater that has fallen in the disposal site is collected and treated together with the leachate of the disposal site. Among the equipment costs of the final disposal site, the cost required for the treatment of leachate, such as COD removal treatment, BOD removal treatment, or heavy metal removal treatment, is very large and may exceed about half of the equipment cost. The present invention has been made in view of such problems, and by separately collecting rainwater and leachate, the amount of leachate that needs to be treated to be released to public waters is significantly reduced and managed. It is an object of the present invention to provide a waste disposal site such as a managed waste final disposal site capable of significantly reducing costs.

[0004]

In order to achieve the above object, the waste disposal site of the present invention has the following configuration.

(1) Divided into a plurality of sections by partition walls,
A leachate drainage ditch is provided at one end of each of the compartments and has an open upper side, and a rainwater drainage ditch is provided at an upper side in parallel with the leachate drainage ditch to cover the upper part of the compartment. A roof that can collect water and guide it to the rainwater drain is provided so as to be movable for each section, and a rainwater guide lid having a length corresponding to the width of each section is attached to the upper surface of the opening of the leachate drain. By being detachably provided, rainwater and leachate discharged from each section can be separated and collected.

(2) Divided into a plurality of sections by partition walls,
A bottom surface and an upper end of a side wall of each of the compartments are provided with a leachate drain groove having substantially the same height at the one end side and an open upper side, and a side wall of the leachate drain groove located on the compartment side is provided on A plurality of discharge holes for leachate discharged from the waste of each section are provided, and a rainwater drainage ditch having an open upper side is provided alongside the leachate drainage ditch to collect rain falling over the upper part of the section. A roof provided with a rainwater collecting pipe for guiding water to the rainwater drainage groove is provided so as to be movable for each section, and has a length corresponding to the width of each section, and the upper surface of the section side is a bottom surface of each section. By providing a rainwater guide lid that is almost the same height as the upper surface and the upper surface on the opposite side faces the upper surface of the opening of the rainwater drainage groove, and is detachably attached to the upper surface of the opening of the leachate water drainage groove, the The discharged rainwater and leachate were separated and collected separately.

(3) In the waste disposal site having the structure of (2), a slope is provided on the bottom surface of each section so as to become lower toward the leachate drain and the rainwater drain.

According to the present invention, rainwater and leachate discharged from each section can be separately collected by employing the above configuration. That is, for a section that has not yet received waste, or for a section that has finished receiving waste, a rainwater guide lid is installed on the upper surface of the leachate drainage groove located at one end of the section, On the bottom of the compartment, or
Rainwater flowing on the soil covering surface above the deposited waste after the receiving is completed can be guided to the rainwater drain by the rainwater guide lid and drained. The leachate remaining in the waste in the section where the waste has been received can be guided to the leachate drain by way of a plurality of leachate drain holes on the side wall of the leachate drain.

In addition, a movable roof is installed in the section receiving the waste so as to cover the upper surface of the section, and rain falling on the roof is collected and guided to the rainwater drain. So that rain does not fall directly on the waste being received. Rainwater that has fallen into the compartment of the disposal site from the side of the roof or the like can be led as a leachate to the leachate drainage channel through the upper surface of the side wall of the leachate drainage channel or through a plurality of leachate drainage holes in the side wall. For this reason, the rainwater guide lid is removed or not attached to the upper surface of the leachate drainage groove. Thus, rainwater and leachate can be separated and collected, and the amount of leachate requiring treatment can be minimized.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view showing an embodiment of a managed waste disposal site as a waste disposal site according to the present invention. FIG.
3 is a cross-sectional view taken along line A-A of FIG. 1, FIG. 3 is an enlarged plan view of a main part of the plan view shown in FIG. FIG. 5 is a sectional view taken along line C-C of FIG. 3, FIG. 6 is a sectional view taken along line C-C of FIG. 3, and FIG. 6 is a view of a disposal site provided with a roof and a rainwater guide cover shown in FIG. FIG. 7 is a perspective view, FIG. 7 is a plan view of the first rainwater guide cover, FIG. 8 is a front view of FIG. 7 as viewed from the direction of the arrow D, FIG.
11 is a plan view of the second rainwater guide cover, FIG. 11 is a front view of FIG. 10 as viewed from the direction of the arrow F, FIG. 12 is a side view of FIG.
14 is a plan view of the joint cover of the rainwater guide cover, FIG. 14 is a front view taken along the line H of FIG. 13, FIG. 15 is a side view taken along the line I of FIG. 14, and FIG. FIG. 17 is a plan view showing
16 is a front view as viewed in the direction of the arrow J in FIG. 16, FIG. 18 is a side view as viewed in the direction of the arrow K in FIG. 17, and FIG. 19 shows the collection procedure of rainwater and leachate in the section where waste reception has been completed and corresponds to FIG. Cross section,
FIG. 20 is a plan view showing a different embodiment of the managed waste final disposal site of the present invention. FIG. 21 is an enlarged plan view showing a procedure for filling a gap between a partition wall and a rainwater outflow preventing flange of a rainwater guide lid, and FIG. FIG. 22 is a sectional view taken along line L-L in FIG. 21.

As shown in FIG. 1, in a managed waste final disposal site 1 (hereinafter sometimes simply referred to as a disposal site 1), a waste receiving portion is divided into a plurality of partitions Z by partition walls 2 in the top view (this embodiment). In this case, the leachate extending in the direction intersecting with each of the plurality of sections Z is provided on one end side of each of the plurality of sections Z. A discharge port 3 is located and provided, and a rainwater discharge port 4 is provided alongside the leachate discharge port 3 on a side away from the section Z. 1A is the outer edge of the repository 1.

As shown in FIG. 2, each section Z of the waste receiving portion is formed by digging down from the ground surface by excavating the ground EA or the like to form a depression.
At the bottom of the pit and at the boundary between the inclined side wall along the outer edge 1A of the disposal site 1 and the ground EA, a water-blocking material 5 made of a rubber-like or asphalt-like mat is laid, and leachate is formed. It is configured not to penetrate into the ground EA. The partition 2 that defines the section Z has a height almost extending to the ground surface.

The depression as a waste receiving portion forming each section Z of the disposal site may be formed at the top of the ground surface by embanking the outer edge 1A from the ground surface. In this case, the partition 2 that defines the section Z is approximately at the height of the outer edge 1A of the disposal site.

A protective layer (protective material) 6 of a predetermined thickness, which is made of soil mixed with sand to allow water to permeate and is formed by squeezing under a predetermined pressure, is provided above the water shield 5. The protection layer 6 is configured to prevent the waste from directly colliding with the water barrier 5 when the waste is put into the pit of each section Z, thereby preventing the water barrier 5 from being damaged. You.

The protective layer 6 and the upper surface of the protective layer 6 which constitutes the bottom surface 6a of the disposal site 1 are provided with water leaching water drains 3 and rainwater drains on the upper surface and inside of the protective layer 6. For facilitating the flow toward the side 4, a slope of, for example, about 1/200 is provided so as to decrease toward the leachate drain 3 and the rainwater drain 4. As shown in FIG. 4 and the like, a plurality of seepage water discharge holes 7 are provided in the side wall 3a located on the section Z side of the seepage water drainage groove 3 through the side wall 3a. The opening on the section Z side of the leachate discharge hole 7 faces the protection layer 6 and communicates with the inside of the protection layer 6, and water such as leachate penetrating through the protection layer 6 passes through the discharge hole 7. It is constituted so that it can be led to the leachate drain 3.

The seepage drain 3 and the rain drain 4 are shown in FIG.
As shown in detail in FIG. 3, the cross section is formed in a U-shape and similar to each other with an open top, and the side wall 3a located on the section Z side of the leachate drainage groove 3 and the other side wall 3b have the same height. One of the side walls of the rainwater drainage groove 4 also serves as the other side wall 3b of the leachate drainage groove 3, and the other side wall 4a of the rainwater drainage groove 4 has the same height as the side walls 3a, 3b. Have been. The height of the connection point of the upper surface of the protective layer 6 constituting the bottom surface 6a of the disposal site 1 to the side wall 3a of the leachate drainage groove 3 is substantially equal to the height of the side wall 3a. That is, the connection point on the upper surface of the protective layer 6 is
Of the side wall 3a.

In the repository 1 constructed as described above, as shown in FIG.
In the section UZ that is receiving waste, a roof 30 supported by a frame 31 so as to cover the upper portion thereof is supported by the upper ends of the partition walls 2 on both sides where the frame 31 defines the section UZ. It is installed by that. Frame 31 of the roof 30
The vertical legs 31a provided at intervals in the longitudinal direction of the partition wall 2 on the both sides in the width direction of the roof 30, that is, both sides in the width direction of the section UZ, and the lower ends of the plurality of legs 31a are integrally formed. Bottom horizontal connecting member 31 connected and extending in the longitudinal direction of partition 2
It consists of b.

The roof 30 is provided with one end (the right side in the drawing) in the width direction of the section UZ lowered and inclined.
A rainwater collecting gutter 32 is attached to the lower edge along the longitudinal direction of the roof, that is, the longitudinal direction of the section UZ.
In order to prevent overflow of rainwater collected by the gutter 32 from the gutter, the gutter 32 is provided with a plurality of gaps in the longitudinal direction so as to allow drainage at appropriate intervals in the longitudinal direction. The lower end of each of the vertical drainage pipes 33 is connected to a rainwater collecting pipe 34 extending in the longitudinal direction of the roof 30 in the same direction as the gutter 32. An end of the rainwater collecting pipe 34 is bent downward at a position straddling the leachate drainage groove 3, and an opening 34 a of the pipe end faces the inside of the rainwater drainage groove 4.

The rainwater vertical drain pipe 33 and the rainwater collecting pipe 34
Is fixedly attached to the frame 31. The rainwater collecting gutter 32, the rainwater vertical drainage pipe 33, and the rainwater collecting pipe 34 constitute a rainwater collecting pipe. The rainwater collecting pipe is a rainwater collecting gutter 3
By increasing the volume of 2, the rainwater collecting gutter 32 alone may be used, and a rainwater drainage pipe for guiding rainwater to the rainwater drainage groove 4 may be connected to the end thereof.

The roof 30 thus supported and formed by the frame 31 has a section UZ as viewed in plan as shown in FIG.
Is provided so as to completely cover. In the section UZ, a portable belt conveyor PC for carrying waste is supported and installed on a support member (not shown) above the inner surface of the partition wall 2 on one side thereof, and the waste is placed on the conveyor PC in the longitudinal direction of the conveyor PC. An unloading device (not shown) that can be cut out at any position of the vehicle is attached. This conveyor PC can be loaded and installed in each section Z.

Thus, by installing the roof 30 above the section Z which is receiving the waste, rainwater is prevented from entering the section UZ, and the roof 30 is lowered to the waste received in the section UZ. The amount of leachate required for post-treatment can be prevented as much as possible by preventing the occurrence of leachate.

When the reception of the waste in the section UZ is completed, the roof 30 is moved together with the frame 31 to the section Z for newly receiving the waste. At the time of this relocation, for example, as shown by a chain line in FIG.
Alternatively, a plurality of steel bars or the like are hung as guide rails, and the bottom horizontal connecting member 31b of the frame 31 of the roof 30 is placed thereon, towed by a crane or the like, and the roof 30 is moved to the section Z for receiving the next waste. Let it. The roof 30 may be divided into a plurality of sections in the longitudinal direction of the section Z.

FIGS. 7, 10 and 16 are plan views showing different types of rainwater guide lids, respectively.
As shown in FIG. 3, when two adjacent divisions Z have not yet received waste, the rainwater guide lids 10 and 11 have unused divisions UNZ that have not yet received the two wastes. , LUNs facing the UNZ. The rainwater guide lid 13 in FIG. 16 is a lid that can be used alone at the upper opening of the seepage water drainage port 3 facing the unused division UNZ.

The rainwater guide cover 10 shown in FIGS. 7 to 9 is a rainwater guide cover of the first type, and the rainwater guide cover 10 shown in FIG. 7 is the rainwater guide cover shown in FIG. FIG. 4 is a plan view corresponding to a lid 10. The length of the rainwater guide lid 10 in the vertical direction in the figure (the length of the lid 10 in the present invention) is equal to the width of the partition Z, and the length in the direction orthogonal to the vertical direction. (The width of the lid 10 in the present invention) is longer than the width between the outer surfaces of the side walls 3a, 3b on both sides of the leachate drainage port 3 by a predetermined amount, and both side edges are bent downward. A groove 10b for groove alignment is formed.

The groove 10b for groove alignment on both sides is shown in FIG.
As shown in FIG. 5, the gap between the inner side surfaces is formed to be slightly longer than the width between the outer side surfaces of the side walls 3a, 3b on both sides of the leachate drainage port 3. On the surface of the lid 10, a rainwater outflow prevention flange 10a is provided upright at the upper end in the vertical direction at right angles to the surface of the lid 10. The rainwater outflow-preventing flange 10a is formed so as to protrude from the surface of the lid 10 toward the section Z by a predetermined amount. It is attached to the upper opening of the drain port 3.

The surface of the lid 10 and the flange 10a function as a guide passage for rainwater. The flange 10a also functions as a mounting guide when the lid 10 is set in the upper opening of the leachate drainage port 3. A rubber plate 10c for rainwater sealing is attached to the back surface of the lid 10 at a position corresponding to the upper end position of the side walls 3a, 3b on both sides of the leachate drain port 3.

The rainwater guide lid 11 shown in FIGS.
Fig. 1 shows a rainwater guide lid of a second type.
0 is a plan view corresponding to the rainwater guide lid 11 shown in FIG. 3. This rainwater guide lid 1
Reference numeral 1 denotes a rainwater outflow preventing flange 11a which is formed on the surface of the lid 11 at the lower end in the vertical direction in the figure so as to be perpendicular to the surface of the lid 11. Other configurations of the lid 11 are shown in FIGS.
This is exactly the same as the rainwater guide lid 10 shown in FIG.

FIGS. 13 to 15 show the above-mentioned rainwater guide lid 10.
And a rainwater guide lid joint cover 12 for covering the joint of the rainwater guide lid 11. As shown in FIG. 5, the seam cover 12 has the lid 1 in both width directions.
Flanges 10b, 1 for groove alignment on both sides in the width direction of 0, 11
A lid fitting flange 12a having an interval slightly larger than the dimension between the outside of 1b is formed by bending downward. A rainwater sealing rubber plate 12b is attached to both sides in the width direction of the back surface of the seam cover 12.

The rainwater guide lid 13 shown in FIGS.
FIG. 1 shows a third type of rainwater guide lid, and FIG.
6 is a plan view corresponding to the rainwater guide lid 13 shown in FIG. This rainwater guide lid 1
Reference numeral 3 denotes a rainwater outflow preventing flange 13a which is formed on the surface of the lid 13 at the upper and lower ends in the vertical direction in the figure, respectively, so as to be perpendicular to the surface of the lid 13. Other configurations of the lid 13 are exactly the same as those of the rainwater guide lids 10 and 11 shown in FIGS. 7 to 9 and FIGS.

The dimension between the rainwater outflow preventing flanges 13a at both ends of the rainwater guide lid 13 in the vertical direction is the width of the partition Z, that is, the adjacent partition walls 2, 2 for forming one partition.
, And the outer surfaces of the respective projecting portions of both ends in the vertical direction on the partition side of the rainwater outflow prevention flange 13a are along the inner wall surfaces of the adjacent partition walls 2, 2. To the upper opening of the leachate drain 3.

Thus, in the management type waste final disposal site 1 of the present invention, the waste receiving portion, the leachate drainage ditch 3, the rainwater drainage ditch 4, the roof 30, the rainwater guide lid configured as described above. The rainwater and the leachate can be collected separately by the rainwater guide lid cover 10, 11, 13, and the rainwater guide lid joint cover 12. That is, as shown in FIG. 3 or FIG. 4, FIG. 5, and FIG. 6, when the waste non-acceptance division Z is adjacent to the division Z that has not received waste yet, the division Z UNZ, at the upper surface opening of each of the leachate drainage grooves 3 facing the UNZ, that is, the side walls 3a on both sides of the
3b, the first and second rainwater guide lids 10 and 11
Are mounted such that the rainwater outflow prevention flanges 10a and 11a are arranged such that the outer surfaces of the respective projections are along the inner wall surface of the partition wall 2.

A joint cover 12 is provided on both the lids 10 and 11 along the joint of the lids 10 and 11.
To prevent rainwater flowing on the upper surfaces of the lids 10 and 11 from leaking into the leachate drainage groove 3 from the gap between the joints as much as possible. Although not shown, an end near the side wall 3a of the leachate drainage groove 3 of the partition wall 2 is provided with the joint cover 12
A notch into which the lid fitting flange 12a can be fitted is formed.

Further, the unused division Z is divided into the division Z on both sides thereof.
, If it exists alone, the unused division UN
At the upper end of the opening of the leachate drain groove 3 facing Z, a third rainwater guide lid 13 is provided to partition the outer surfaces of the respective projecting portions of the rainwater outflow preventing flanges 13a provided at both ends in the vertical direction. Attach it along the inner wall of No. 2.
In addition, when the unused division Z is adjacent to the unused division UNZ, the first and second lids 10 are provided at respective upper surface openings of the leachate drainage groove 3 facing the UNZ. Instead of the joint 11 and the joint cover 12, two third lids 13 may be attached.

The first to third rainwater guide lids 10, 11,
13 is attached to the top opening of the leachate drain 3
If it is difficult or inadequate to adhere the outer surfaces of the rainwater outflow preventing flanges 10a, 11a, 13a of the rainwater guide lids 10, 11, 13 to the inner wall surface of the partition 2, rainwater will leak from this portion. As shown in FIGS. 21 and 22, a gap filling material 25 made of soil, sand, or clay is applied to the gap to prevent the water from flowing into the drain 3 and the rainwater drain 4 in the guide passage. , To fill the gap.

In this way, the rain falling on the unused section UNZ, which has not yet received the waste, causes the upper surface 6a of the protection member 6, which is the bottom face of each section, to be formed along the slope of the leachate drain 3 along the slope. Rainwater guide lids 10 and 1 attached to the upper opening of
The water flows through the upper surfaces of the rainwater drains 4 and 13 and flows into the rainwater drain 4 from the upper opening. When the rainwater flows over the upper surface of the lid, the rainwater does not flow into the leachate drain 3 due to the action of the rainwater outflow preventing flanges 10a, 11a, 13a.

Further, since rubber plates 10c, 11c and 13c for sealing are adhered to the lower surfaces of the lids 10, 11 and 13, the gap between the lower surface of the lid and the side wall 3a of the leachate drain groove 3 is formed. Of the rainwater into the leachate drain 3 can be minimized. Since the sealing rubber plate 12b is also attached to the back surface of the joint seam cover 12, the gap between the upper surface of the cover and the back surface of the cover 12 passes through the gap between the lid 10 and the lid 11 It is possible to prevent rainwater from flowing out into the leachate drainage ditch 3 as much as possible.

On the other hand, for the section UZ which is receiving waste, the rainwater guide lids 10, 11, 13 are removed or attached to the upper opening of the leachate drain groove 3 facing the section UZ. The roof 30 is installed on the upper part of the section UZ, and the leg 31 is installed on the upper part of the partition 2 on both sides of the section UZ to cover the upper part of the section UZ, and the waste of the section is prevented from raining. Not to be. The rainwater on the roof is collected by a rainwater collecting pipe, and is drained to a rainwater drain 4 from an opening 34 a at an end of the rainwater collecting pipe 34.

The rain that falls into the section Z from the side surface of the leg portion 31 of the roof 30 and falls on the waste is leachate as a top surface of the side wall 3a of the leachate drain 3 or a plurality of leachate discharges on the side wall 3a. The water flows into the leachate drain 3 through the hole 7. When the reception of the waste in that section is completed, the roof 30 is moved (moved) to the section that receives the next waste.

As described above, by dividing the disposal site into a large number and installing the roof 30 on the section UZ receiving waste, almost all of the rainfall in the disposal site is collected as rainwater separately from leachate. Thereby, the leachate that needs to be treated can be significantly reduced, and the cost for the managed final disposal site can be reduced.

Also, as shown in FIG. 19, the rainwater guide lids 10, 11, and 13 are attached to the upper opening of the leachate drain groove 3 facing the section Z even for the section Z in which the waste has been received. The rainwater falling on the waste 20 deposited by the rainwater can be guided to the rainwater guide lids 10, 11, 13 and flow out to the rainwater drain 4. That is, as shown in the figure, a cover 21 is applied to the upper surface and the slope of the deposited waste 20, and a waterproof sheet 22 is further provided on the surface thereof. Laying in such a way that the rain falling
Of the waste 20 by flowing the surface of the wastewater to prevent rainwater from penetrating into the waste 20 and guiding the rainwater to the rainwater guide lids 10, 11, and 13 so as to flow out to the rainwater drain 4. The amount of leachate discharged can be minimized.

The water that has already penetrated into the waste 20,
Alternatively, if the waterproof sheet 22 is damaged, the water that has permeated into the waste 20 may be leached out of the plurality of leaching water discharge holes 7 provided on the side wall 3a of the leaching water drainage groove 3 via the protective layer 6. Can be led to the leachate drain 3 to collect water.

In the above manner, rainwater and leachate can be separated and collected, and the amount of leachate requiring treatment can be minimized. That is, the important point of the present invention is that the waste receiving part of the disposal site is divided into a plurality of divisions Z,
The section UZ receiving waste is limited to a part of the waste receiving section of the disposal site, and a roof 30 is installed in the section to prevent rainwater from entering the section of the disposal site. Leachate drain 3 and rainwater drain 4 are designed to prevent falling into the receiving waste and to allow clear separation of leachate and rainwater, and to prevent leachate from entering the rainwater. In addition, the present invention is to make the configuration so that rainwater is not put into the leachate as much as possible.

Further, according to the present invention, the waste receiving part of the disposal site is divided into a plurality of divisions Z, so that the zone Z, which has not yet received the waste, is used as a temporary waste storage site. Effective use of the disposal site is possible. In this case, an intermediate treatment facility for general treatment of waste, such as burning / incineration, pulverization, separation, and conversion to fuel, or vitrification or ash fusion of waste is placed near the disposal site. By installing an intermediate treatment facility for advanced treatment of waste, for example, it is possible to treat waste highly and efficiently.

In addition, if the amount of leachate is reduced as described above, the waste heat and residual heat discharged from the intermediate treatment equipment including the combustion and incineration equipment installed near the disposal site are released to the atmosphere. Only the leachate treatment can be performed. That is, the residual heat and the collected leachate are heat-exchanged by a heat exchanger or the like, and the leachate can be boiled and evaporated to be released to the atmosphere.

In the above embodiment, the case where the leachate drain groove 3 and the rainwater drain groove 4 are installed so as to face one end of the section Z has been described. The setting of the drainage ditch is determined in consideration of the topography of the place where the disposal site will be installed and ease of use. For example, as shown in FIG. 20, a disposal site as a waste receiving portion is provided on both sides of a drainage channel for leachate and rainwater, and the left and right waste receiving portions are divided into a plurality of sections Z. That is, in FIG. 20, the rainwater drainage ditch 4 and the leachate drainage ditch 3, 3 are provided side by side at the center of the disposal site, and the wastewater on the left side faces the leachate drainage ditch 3 on the left side. The receiving portion is formed by dividing the plurality of sections ZL so as to extend in a direction orthogonal to the drainage grooves 3 and 4, and the right side waste receiving section is drained from the plurality of sections ZR by facing the right leachate drainage groove 3. It is divided so as to extend in a direction perpendicular to the grooves 3 and 4.

In this case, each of the left and right sections is inclined so that the bottom surface thereof becomes lower toward the leachate drain 3. If the long side of the disposal site is extremely long, the height difference between the point near the outer edge of the disposal site and the drainage ditch becomes large due to the gradient of rainwater. In some cases, the height difference can be reduced by shortening the long side of the mark, which is preferable.

In the waste disposal site of the above embodiment, the place where all of the sections Z, ZL and ZR around the leachate drainage ditch 3 have completely received the waste, after sealing the rainwater drainage ditch 4, Waste can also be received in the upper part of the rainwater drain 4.

In the above-described embodiment, the case where only one roof 30 is used by attaching it to one section UZ which is receiving waste is shown. Each of the roofs 30 is installed in the section Z.

In the above embodiment, the case where the portable belt conveyor PC is installed above the inner side surface of the partition wall 2 is shown. In FIG.
You may carry in and install along the longitudinal direction of the partition 2 inside the bottom horizontal connection member 31b of the 0 leg part 31a.

In the present invention, when the width of the partition walls 2 adjacent to each other in the section Z, that is, the width of the section Z is large, instead of installing the portable belt conveyor PC, waste is removed by a bulltozer, shovel loader, or the like. It can also be carried into the section Z using a transport heavy machine.

In the above embodiment, the management type waste disposal site has been described. However, the present invention can be applied to a general waste disposal site.

[0052]

As is apparent from the above description, in the waste disposal site of the present invention, rainwater and leachate discharged from each section can be separately collected. That is, for a section that has not yet received waste or a section that has finished receiving waste, a rainwater guide lid should be installed on the upper surface of the leachate drainage groove located at one end of the section. Accordingly, rainwater flowing on the bottom surface of the compartment or on the waste surface on which the reception has been completed and deposited can be guided to the rainwater drainage ditch by the rainwater guide lid and drained. Further, the leachate in the waste in the section in which the reception of the waste has been completed can be guided to the leachate drainage through a plurality of leachate drainage holes in the side wall of the leachate drainage and discharged.

For a section receiving waste, a roof is installed above the section so that rain is prevented from entering the section as much as possible, and rain collected on the roof is guided to a rainwater drain and discharged. Therefore, it is possible to significantly reduce the amount of leachate discharged from the waste without causing rainfall on the waste in the section, and to reduce almost all of the rainfall falling on the section as leachate as rainwater. And can be collected separately. The leachate discharged from the waste in the compartment can be guided to the leachate drain by way of a plurality of leachate drain holes in the side wall of the leachate drain.

As described above, rainwater and leachate at the disposal site can be separated and collected, and the amount of leachate requiring treatment can be minimized. For this reason, the treatment cost for discharging leachate to the public area can be significantly reduced, and the management cost of the disposal site can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a managed waste final disposal site as a waste disposal site of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an enlarged plan view of a main part of the plan view shown in FIG. 1, showing a procedure for separating and collecting rainwater and leachate.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a sectional view taken along line CC of FIG. 3;

FIG. 6 is a perspective view of a disposal site provided with the roof and the rainwater guide lid shown in FIG.

FIG. 7 is a plan view of a first rainwater guide lid.

FIG. 8 is a front view as seen in the direction of the arrow D in FIG. 7;

FIG. 9 is a side view as seen in the direction of the arrow E in FIG. 8;

FIG. 10 is a plan view of a second rainwater guide lid.

FIG. 11 is a front view as viewed in the direction of arrow F in FIG. 10;

12 is a side view as seen from the direction of the arrow G in FIG. 11;

FIG. 13 is a plan view of a joint cover of the rainwater guide cover.

FIG. 14 is a front view as viewed in the direction indicated by the arrow H in FIG. 13;

FIG. 15 is a side view taken along line I of FIG. 14;

FIG. 16 is a plan view showing a third rainwater guide lid.

FIG. 17 is a front view as viewed in the direction of the arrow J in FIG. 16;

FIG. 18 is a side view taken along the line K in FIG. 17;

19 is a cross-sectional view corresponding to FIG. 4, illustrating a collection point of rainwater and leachate in a section in which waste reception has been completed.

FIG. 20 is a plan view showing another embodiment of the managed waste final disposal site of the present invention.

[FIG. 21] A gap between the outer surface of the rainwater outflow preventing flange of the rainwater guide lid and the inner wall surface of the partition wall when the rainwater guide lid is attached to the upper opening of the leachate drainage groove with a gap filler. It is a principal part enlarged plan view which shows the point of filling.

FIG. 22 is a sectional view taken along line LL of FIG. 21;

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 Management type waste final disposal site 2 Partition wall 3 Leachate drainage ditch 3a, 3b Side wall of leachate drainage ditch 4 Rainwater drainage drainage 5 Water-blocking material 6 Water-blocking material protection material 6a Subdivision (section) bottom [water-blocking material protection Top surface of the material] 7 Leachate discharge hole 10 First rainwater guide lid 11 Second rainwater guide lid 12 Seam cover 13 Third rainwater guide lid 20 Waste 21 Covering soil 22 Waterproof sheet 25 Gap filling material Reference Signs List 30 roof 31 frame 32 rainwater collecting gutter 33 rainwater vertical drain pipe 34 rainwater collecting pipe 35 roof transfer guide rail PC portable belt conveyor Z section (division) UZ Waste receiving area UNZ Section not receiving waste ZL Left side Section ZR Right Section EA Ground

Claims (3)

[Claims] 1. A leachate drainage groove which is divided into a plurality of sections by a partition wall, and which is located at one end side of each of the sections and has an upwardly opened leachate drainage groove, and which is juxtaposed with the leachately drainage groove and has an upwardly opened rainwater drainage A drain is provided, and a roof capable of collecting rain falling over the upper part of the section and guiding the rain to the rainwater drain is provided for each section so as to be relocated, and the width of each section is provided on the upper surface of the opening of the leachate drain. The rainwater guide lid having a length corresponding to the length of the rainwater can be attached and detachably provided to separate and collect rainwater and leachate discharged from each section. Waste disposal site. 2. A leachate drainage groove which is divided into a plurality of compartments by a partition wall, and a bottom surface and an upper end of a side wall of each of the compartments are substantially flush with each other at one end side of each of the compartments, and an upper side is opened.
A plurality of discharge holes for leachate discharged from the waste of each section are provided on a side wall located on the side of the section of the leachate drain, and a rainwater drain having an upper side opened in parallel with the leachate drain. A groove is provided, and a roof provided with a rainwater collecting pipe that collects rain falling over the section and guides the rainwater to the rainwater drainage groove is provided so as to be movable for each section, and a length corresponding to the width of each section. A rainwater guide lid having a top surface on the partition side substantially at the same height as the bottom surface of each of the partitions and having an opposite end upper surface facing the upper surface of the opening of the rainwater drainage groove. A waste disposal site characterized in that rainwater and leachate discharged from each section can be separated and collected by being detachably attached to the upper surface of the opening. 3. The waste disposal site according to claim 2, wherein a slope is provided on a bottom surface of each of the compartments so as to become lower toward the leachate drain and the rainwater drain.