JP2021162373A - Landfill storage facility for radioactively contaminated waste - Google Patents

Abstract

To provide a landfill storage facility for radioactively contaminated waste capable of continuously and reliably landfilling and storing a large amount of radioactively contaminated waste while surely preventing workers from being exposed even when a vast land cannot be secured when burying radioactively contaminated waste after sorting in an interim storage facility.SOLUTION: The landfill storage facility for radioactively contaminated waste includes: an unloading facility 10 for accepting a vehicle 100 loaded with radioactive waste and unloading the radioactive waste; transport facility 20 that transports the radioactive waste to a designated location in the landfill site; an outflow prevention facility 30 for preventing the radioactive waste from leaking from the landfill; and leachate treatment facility 60 for treating leachate leaching from the landfilled radioactive waste.SELECTED DRAWING: Figure 1

Description

The present invention relates to a landfill storage facility for radioactive material-contaminated waste (waste contaminated with radioactive material), and is particularly efficient even in a landfill site where it is difficult to install large-scale equipment. It relates to a landfill storage facility for radioactively contaminated waste that can be landfilled.

Soil, branches and leaves, fallen leaves, stones, etc. contaminated with radioactive substances need to be treated appropriately. Generally, branches and leaves, fallen leaves, stones, etc. are removed from soil contaminated with radioactive substances, packed in a container such as a flexible container bag, temporarily stored in an intermediate storage facility that does not affect the human body, etc., and then the radioactivity concentration. Appropriate final disposal will be made accordingly. Therefore, various techniques relating to an intermediate storage facility after separating and treating radioactive material-contaminated waste have been proposed (see, for example, Patent Document 1 and Patent Document 2).

The technique described in Patent Document 1 relates to an interim storage facility for spent nuclear fuel, and aims to reduce the land required for the above-ground part and start sharing at an early stage. This interim storage facility is an interim storage facility equipped with a communication cavity, a storage cavity and a ventilation shaft formed in the bedrock. The storage cavity has one end connected to the communication cavity and the other end open to the surface. In addition, the lower end of the ventilation shaft is connected to the top of the storage cavity, and the upper end is open to the surface of the earth. Further, a plurality of storage cavities are connected to the communication cavity.

The technique described in Patent Document 2 relates to a storage facility and a storage method for radioactively contaminated waste, which can safely grasp the radioactive concentration of the radioactively contaminated waste in the interim storage facility. In this storage facility and storage method for radioactively contaminated waste, radioactively contaminated waste such as soil removed by decontamination of the radioactively contaminated area is stored in the storage section. A water-impervious portion is provided on the outer peripheral portion of the storage portion, and the impermeable portion is formed of, for example, a water-impervious sheet or clay soil. In addition, the impermeable portion is designed to prevent rainwater or the like from entering the storage portion or water or the like from the storage portion. Inside the storage unit, measuring instruments including γ-ray detectors are arranged at a plurality of locations together with contaminants, and the radiation dose (μSv / h) can be measured.

Japanese Unexamined Patent Publication No. 2012-2725 Japanese Unexamined Patent Publication No. 2014-228365

As described above, the separated radioactive material-contaminated waste is temporarily stored in an interim storage facility and then finally disposed of based on a predetermined standard. Securing land for interim storage of radioactively contaminated waste is an urgent issue, but it is not always possible to secure a vast interim storage site, and if the prescribed conditions are met, the land will be somewhat narrow. May also be used as an interim storage facility. In this way, when a vast intermediate storage site cannot be secured, the space for constructing the storage facility must be effectively used.

For this reason, after giving due consideration to safety, it is necessary to efficiently arrange the vehicle receiving equipment for carrying in the radioactive material contaminated waste to be treated and the storage facility for the radioactive material contaminated waste. Ingenuity is required. In the conventional techniques including the techniques described in the above-mentioned patent documents, there is room for further ingenuity in the efficient arrangement of the interim storage facility.

The present invention has been proposed in view of the above circumstances, and when landfilling radioactive material-contaminated waste after separation treatment in an interim storage facility, even if a vast land cannot be secured, the exposure of workers is exposed. It is an object of the present invention to provide a landfill storage facility for radioactive material-contaminated waste, which can continuously and reliably landfill and store a large amount of radioactive material-contaminated waste after surely preventing it.

The landfill storage facility for radioactively contaminated waste according to the present invention has the following features in order to achieve the above-mentioned object. That is, the landfill storage facility for radioactively contaminated waste according to the present invention relates to a facility for landfilling radioactively contaminated waste sorted based on a predetermined standard. This landfill storage facility for radioactive material-contaminated waste accepts vehicles loaded with radioactive material-contaminated waste, and unloads the radioactive material-contaminated waste and unloads the unloaded radioactive material-contaminated waste. Transport equipment to transport to a predetermined position in the site, outflow prevention equipment to prevent the outflow of radioactive material contaminated waste from the landfill, and leachate to treat the leachate that seeps out from the radioactive material contaminated waste buried in the landfill. It is characterized by being equipped with water treatment equipment.

In addition to the above configuration, the unloading equipment includes a turntable that turns the vehicle loaded with the radioactive material contaminated waste and a scattering that prevents the radioactive material contaminated waste that opens and closes as the vehicle enters and exits. It is possible to have a configuration provided with a preventive curtain.

In addition to the above-described configuration, the transport equipment includes a vertical belt conveyor that unloads the unloaded radioactive material contaminated waste to a predetermined height, and a predetermined radioactive material contaminated waste that is unloaded by the vertical belt conveyor in the landfill. The height of the drop port of the radioactive material contaminated waste, which is installed at the end of the horizontal belt conveyor that conveys to the position and expands and contracts according to the discharge height that changes with the landfill of the radioactive material contaminated waste. It is possible to have a configuration including a discharge height adjusting device for adjusting the height and a spraying device provided near the drop port and spraying water on the radioactive substance-contaminated waste to be dropped.

In addition to the above-mentioned configuration, the outflow prevention equipment may be provided so as to surround the landfill site, and may be provided with a dam having a management road at the top and a partition weir that divides the landfill site into a plurality of locations. It is possible.

In addition to the above-mentioned configuration, the leachate treatment facility includes a leachate storage facility that temporarily stores leachate that leaches from radioactive material-contaminated waste landfilled in a landfill, and a leachate storage facility that temporarily stores leachate. It is possible to configure the facility with water quality improvement equipment to improve the water quality.

In addition to the above-mentioned configuration, the leachate storage facility can be configured by installing a plurality of storage tanks in series to form a plurality of storage tank groups, and installing each storage tank group in parallel so as to be switchable. ..

According to the landfill storage facility for radioactive material contaminated waste according to the present invention, even when a vast land cannot be secured when landfilling the radioactive material contaminated waste after the separation treatment in the intermediate storage facility, the workers It is possible to continuously and reliably landfill and store a large amount of radioactive material-contaminated waste while reliably preventing exposure.

The block diagram of the landfill storage facility of the radioactive material contaminated waste which concerns on embodiment of this invention. The schematic diagram which shows the structure of the landfill storage facility of the radioactive material contaminated waste which concerns on embodiment of this invention. The schematic diagram which shows the structure of the leachate treatment facility which concerns on embodiment of this invention. The flowchart which shows the outline of the landfill storage process in the landfill storage facility of the radioactive material contaminated waste which concerns on embodiment of this invention.

Hereinafter, a landfill storage facility (hereinafter, may be abbreviated as a landfill storage facility) for radioactive material-contaminated waste (waste contaminated with radioactive material) according to the embodiment of the present invention will be described with reference to the drawings. .. 1 to 4 show the landfill storage facility according to the embodiment of the present invention, FIG. 1 is a block diagram of the landfill storage facility, FIG. 2 is a schematic view showing the configuration of the landfill storage facility, and FIG. 3 is leachate. A schematic diagram showing the configuration of the processing facility, FIG. 4 is a schematic flowchart of the landfill storage process.

<Overview of landfill storage facility for radioactively contaminated waste>
The landfill storage facility for radioactive material-contaminated waste according to the embodiment of the present invention is suitably applicable in a situation where a vast land cannot be secured, especially when landfilling radioactive material-contaminated waste after separation treatment in an interim storage facility. As shown in FIGS. 1 and 2, it is provided with an unloading facility 10, a transport facility 20, a runoff prevention facility 30, and a leachate treatment facility 60.

<Unloading equipment>
The unloading facility 10 is a facility for accepting a vehicle (for example, a dump truck) 60 loaded with the radioactive material contaminated waste after the separation treatment and unloading the radioactive material contaminated waste. The unloading equipment 10 has a turntable 11 that turns the vehicle 100 loaded with the radioactive material-contaminated waste, and a scattering to prevent the radioactive material-contaminated waste that is opened and closed and unloaded as the vehicle 100 enters and exits. It is provided with a prevention curtain 12.

<Turntable>
The turntable 11 is a device provided for effectively using the limited land, and the vehicle 100 that has entered from the entrance / exit of the unloading building 13 gets in from the driver's seat side and then turns 180 ° to the vehicle. The rear portion of 100 is opposed to the receiving hopper 14. Then, when the unloading is completed, the vehicle 100 is turned 180 ° with the vehicle 100 mounted on the vehicle, the driver's seat side is opposed to the doorway, and the vehicle 100 is evacuated from the doorway of the unloading building 13.

The general unloading equipment 10 requires a space for turning the vehicle 100, but the landfill storage facility according to the present embodiment does not require such a space, so that a vast land cannot be secured. Even so, the landfill site can be effectively used.

<Scattering prevention curtain>
The shatterproof curtain 12 is a device that is attached to the entrance / exit side and the hopper side of the unloading building 13 and opens / closes (elevates and descends) when the vehicle 100 enters and exits. The shatterproof curtain 12 has the doorway side open when the vehicle 100 enters the unloading building, and the doorway side is closed and the hopper side is open when the vehicle 100 is placed on the turntable 11. Then, the closed state of the doorway side is maintained until the unloading is completed, and when the vehicle 100 exits from the doorway of the unloading building 13, the doorway side is opened and the hopper side is closed.

By providing the shatterproof curtain 12, when the vehicle 100 unloads the radioactive material-contaminated waste indoors, the unloading building can be kept substantially sealed, so that the radioactive material-contaminated waste can be kept substantially sealed. Scattering can be minimized.

<Transport equipment>
The transport facility 20 is a facility for transporting the unloaded radioactive material-contaminated waste to a predetermined position in the landfill. The transport facility 20 transports the unloaded radioactive material contaminated waste to a predetermined height and the vertical belt conveyor 21 and the radioactive material contaminated waste unloaded by the vertical belt conveyor 21 to a predetermined position in the landfill. Horizontal belt conveyor 22 and the height of the drop port of radioactive material contaminated waste, which is provided at the end of the horizontal belt conveyor 22 and expands and contracts according to the discharge height that changes with the landfill of radioactive material contaminated waste. It is provided with a discharge height adjusting device 23 for adjusting the amount of waste, and a spraying device 24 provided near the drop port for spraying water on the radioactive substance-contaminated waste to be dropped.

<Vertical belt conveyor>
The vertical belt conveyor 21 is a belt conveyor also called a tower belt conveyor or a vertical belt conveyor, and has an endless surface provided with a bucket, protrusions, or the like for holding a transportation object (radioactive substance contaminated waste in this embodiment) on the outer peripheral surface. It is a device for driving a belt in a substantially vertical direction to transport an object to be transported to a predetermined height.

The vertical belt conveyor 21 of the present embodiment is housed in a tubular housing body 25, and transports radioactive material-contaminated waste unloaded in the receiving hopper 14 to a height exceeding the dam of the landfill site. .. The receiving hopper 14 and the vertical belt conveyor 21 are connected by a belt feeder 26, and the radioactive material contaminated waste contained in the receiving hopper 14 is conveyed to the lower end of the vertical belt conveyor 21 by the belt feeder 26. Will be done.

Further, since the vertical belt conveyor 21 is housed in the housing body 25, it is possible to minimize the scattering of radioactive material-contaminated waste during transportation. In addition, since there is no belt conveyor installed at an angle and the belt conveyor is installed in a substantially vertical direction, the space for transporting radioactive material-contaminated waste can be minimized.

<Horizontal belt conveyor>
The horizontal belt conveyor 22 is a device for transporting the transported radioactive material contaminated waste to a predetermined position in the landfill at the terminal portion of the vertical belt conveyor 21. The lateral belt conveyor 22 is supported from below by a plurality of columns 27 installed in the landfill. The length of the lateral belt conveyor 22 and the position of the end portion are appropriately set according to the area and shape of the landfill.

<Release height adjustment device>
The discharge height adjusting device 23 is composed of a telescopic chute, and at the end of the lateral belt conveyor 22, the transported radioactive material contaminated waste is placed on the bottom surface of the landfill (when the radioactive material contaminated waste is accumulated). Adjust the degree of expansion and contraction of the expansion and contraction chute when dropping it to the upper surface) to adjust the discharge height of radioactive material contaminated waste.

Therefore, at the end of the lateral belt conveyor 22, a distance measuring device (for example, laser measurement) for measuring the distance from the bottom surface of the landfill (the upper surface of the landfill waste if it is accumulated) is measured. Distance meter) is installed. Then, the telescopic chute is expanded and contracted according to the distance from the end of the lateral belt conveyor 22 to the ground surface, and the lower end of the telescopic chute and the bottom surface of the landfill (when radioactive substance-contaminated waste is accumulated). The release height of radioactively contaminated waste can be adjusted by adjusting the separation distance from the upper surface).

If the release height of the radioactive material-contaminated waste is too high, the released radioactive material-contaminated waste may be scattered, and if the release height of the radioactive material-contaminated waste is too low, the radioactive material-contaminated waste is contained in the telescopic chute. May be clogged. Therefore, the release height of the radioactive material contaminated waste is adjusted by the release height adjusting device 23.

<Spraying device>
The spray device 24 is a device for spraying water on the radioactive material contaminated waste to be released according to the water content of the radioactive material contaminated waste. By spraying water on the radioactive material-contaminated waste, it is possible to prevent the falling radioactive material-contaminated waste from scattering. The spraying device 24 is mounted downward near the end of the lateral belt conveyor 22.

<Outflow prevention equipment>
The outflow prevention equipment 30 is an equipment for preventing the outflow of radioactively contaminated waste from the landfill site. The outflow prevention equipment 30 is provided so as to surround the landfill, and includes a dam 31 having a management road at the top and a partition weir 32 for partitioning the landfill into a plurality of places.

<Dam>
The dam 31 is provided so as to surround the landfill, and prevents radioactive material-contaminated waste from flowing out from the landfill. Further, a waterproof sheet 33 is extended from the inclined side surface of the dam 31 to the bottom surface of the landfill.

<Partition weir>
The partition weir 32 is provided to partition the landfill into a plurality of sections, and prevents the radioactive material contaminated waste landfilled in the landfill from flowing out to other sections. The shape of the partition weir 32, the area partitioned by the partition weir 32, the height of the partition weir 32, and the like are appropriately set according to the area, height, and the like of the landfill.

<Leached water treatment equipment>
The leachate treatment facility 60 is a facility for treating leachate leached from radioactive material-contaminated waste landfilled in a landfill. The leachate treatment facility 60 includes a leachate storage facility 40 for temporarily storing leachate and a water quality improvement facility 50 for improving the quality of leachate stored in the leachate storage facility.

Further, the leachate storage facility 40 is configured by installing a plurality of storage tanks 41 in series to form a plurality of storage tank groups 42, and installing each storage tank group 42 in parallel so as to be switchable. Therefore, a flow path switching device 48 for switching each storage tank group 42 is provided.

<Leachage storage facility>
As shown in the leachate storage facility 40 of the present embodiment and FIG. 3, a plurality of storage tanks 41 are installed in series, and a plurality of (for example, two groups) storage tank groups 42 are installed. The storage tank 41 on the most upstream side includes a sand sedimentation tank 43 for removing sand and a delivery pump 44 for sending the stored leachate to the water quality improvement equipment 50. The storage tank 41 other than the most upstream side is provided with a pump 45 for pumping the stored leachate to the storage tank 41 in the previous stage. The storage tank 41 on the most downstream side includes a water level detection switch 46 for detecting the water level of the stored water. Further, the storage tanks 41 on the upstream side and the downstream side are communicated with each other by an overflow pipe 47.

Then, in one storage tank group 42, leachate is sequentially stored from the storage tank 41 on the upstream side to the storage tank 41 on the downstream side, and when the storage tank 41 installed on the most downstream side is full, the other storage tanks 41 are stored. Switch to the storage tank group 42 to store the leachate. The leachate stored in the storage tank 41 is sent from the storage tank 41 installed on the most upstream side of each storage tank group 42 to the water quality improvement facility 50 using the delivery pump 44.

<Water quality improvement equipment>
The water quality improvement facility 50 is a facility for improving the water quality of the leachate stored in the leachate storage facility 40. The water quality improving equipment 50 is provided in order to satisfy a standard value capable of discharging leachate in accordance with environmental standards. For example, a water quality improving material (coagulant) may be added to leachate or a sand layer may be added. It consists of a device for filtering leachate with a zeolite and removing radioactive material contaminated waste contained in the leachate with zeolite.

<Landfill storage treatment of radioactively contaminated waste>
With reference to FIG. 4, the outline of the landfill storage treatment of radioactively contaminated waste in the above-mentioned landfill storage facility will be described. The object to be landfilled in the landfill treatment of radioactive material-contaminated waste is radioactive material-contaminated waste that has been sorted in advance by a sorting facility.

In the landfill storage treatment of the radioactive material contaminated waste, the vehicle 100 loaded with the radioactive material contaminated waste separated by the sorting treatment equipment is received by the unloading equipment 10 (S1). When the dump truck approaches, the unloading equipment 10 opens the shatterproof curtain 12 of the unloading building 13, rides the dump truck on the turntable 11, and then closes the shatterproof curtain 12 (S2). Then, the turntable 11 is rotated so that the rear portion of the vehicle 100 of the dump truck faces the receiving hopper 14 (S3).

In this state, the radioactive material-contaminated waste loaded on the dump truck is received and unloaded into the hopper (S4). Although not shown, when the unloading is completed, the turntable 11 is rotated again so that the front part of the vehicle 100 of the dump truck faces the doorway, the shatterproof curtain 12 is opened, and the dump truck is unloaded and exits from the building 13. After that, the shatterproof curtain 12 is opened.

The radioactive material contaminated waste received in the receiving hopper is conveyed to a predetermined height by the belt feeder 26 and the vertical belt conveyor 21 (S5). The radioactive material contaminated waste transported to a predetermined height is transported to a predetermined position in the landfill by the lateral belt conveyor 22 (S6).

The radioactive material contaminated waste transported to a predetermined position in the landfill has its discharge height adjusted by a telescopic chute (release height adjusting device 23), and the bottom surface of the landfill (radioactive material contaminated waste is accumulated). In some cases, it falls on the upper surface) (S7). At this time, water is sprayed on the radioactive material contaminated waste by the spraying device 24. The radioactive material-contaminated waste carried into the landfill is carried to an appropriate position in the landfill by a bulldozer or the like (S8).

In parallel with each of the above treatments, the leachate from the radioactive material contaminated waste landfilled in the landfill site is stored in the leachate storage facility 40 (S10), and then the water quality improvement facility 50 meets the environmental standards. The water quality is improved (S11), and the treated water meets the environmental standards and is discharged (S12).

<Separation of radioactively contaminated waste>
The radioactive material-contaminated waste that is intermediately stored by the landfill storage facility according to the embodiment of the present invention has been separately treated in advance. Hereinafter, the separation treatment of radioactively contaminated waste will be described. In the separation treatment of radioactive material contaminated waste, the radioactive material contaminated waste contained in a bag-breakable container is carried into a separate storage facility and separated under a management system based on the management standard for radioactive material contaminated waste. At the same time, the residue after separation is appropriately treated according to its properties.

<Outline composition of radioactive material contaminated waste separation treatment>
Separation processing of radioactive material contaminated waste The separation process is a process for separating and processing radioactive material contaminated waste contained in a bag-breakable container, which is a carry-in process, a bag-breaking process, and a first separation process. It consists of a step, a modifier mixing means, a second sorting step, and a unloading step. When it is necessary to separate the residue above the reference value and the residue below the reference value, the third separation step is carried out.

<Pre-delivery processing / Post-delivery processing>
In the pre-delivery treatment, for example, the source of the radioactively contaminated waste stored in the flexible container bag and loaded on the dump truck is specified, and the amount of the radioactive material contaminated is measured. Then, in the post-delivery treatment, the residue of the separated storage bag, contaminated soil, vegetation and roots, earth and sand, etc. are removed from the wheel loader, etc. based on predetermined standards (combustible or non-combustible material, radioactivity concentration, etc.). It is loaded onto a dump truck using heavy machinery and carried out to designated storage facilities (landfill, final storage facility, incinerator, etc.).

<Bring-in process / bag-breaking process>
The carry-in process is a step for carrying in radioactive material-contaminated waste contained in a flexible container bag. The radioactive material contaminated waste contained in the flexible container bag was unloaded from the dump truck during the pretreatment process. The bag-breaking process is a process for breaking the flexible container bag of the radioactive material-contaminated waste carried in and taking out the radioactive material-contaminated waste.

<First sorting process>
The first sorting step is a step for separating and removing a residue having a predetermined particle size (for example, 100 mm) or more and a residue in a container from the radioactive substance-contaminated waste that has been sacked in the sack breaking step. The separated residue having a predetermined particle size (for example, 100 mm) or more and the residue in the container are separated into a combustible substance and a residue such as stone, and each is stored in a predetermined storage location.

<Modifying material mixing process>
The modifier mixing step is a step for adding a modifier to the residue separated in the first sorting step and uniformly mixing the residue. In the modifier mixing step, the modifier is mixed with the residue from which the magnetic material has been removed and stirred with a stirrer to reduce the water content of the residue to a predetermined value or less and crush the soil. .. As the modifier, for example, a gypsum-based modifier or a polymer-based modifier can be used.

<Second sorting process>
In the second separation step, with respect to the residue mixed with the modifier, the residue having a reference particle size (for example, 20 mm) or more is based on a particle size smaller than the separation particle size in the first separation step. This is a step for separating the residue from the residue having a particle size smaller than the standard particle size. The separated residue having a predetermined particle size (for example, 20 mm) or more is separated into combustible substances such as plants and roots and incombustible substances such as stones.

<Third sorting process>
The third sorting step is a step to be carried out when it is necessary to separate radioactive material-contaminated waste based on a predetermined reference value (for example, 8,000 Bq / kg), and the second sorting step is used for sorting. This is a step for separating the residue having a particle size smaller than the standard particle size into a residue having a standard value or more and a residue having a value less than the standard value based on a predetermined radioactive concentration.

<Delivery process>
The unloading step is a step for unloading the residue separated by each sorting means based on the respective sorting criteria. The residue after the separation treatment according to the embodiment of the present invention can be roughly classified into low-concentration soil and high-concentration soil such as stone residue, container residue, vegetation / root and the like. These residues are loaded onto a dump truck by a wheel loader or the like, and incineration treatment, landfill treatment, storage treatment in a storage facility, etc. are performed according to the properties of each residue.

<Blocking from the external environment>
In addition, it is preferable that the facilities in the sorting process are installed in a building that can be isolated from the external environment. For example, a double shutter that opens and closes as the dump truck enters and exits is installed at the entrance and exit of the building of the sorting processing facility, and one shutter is always closed when the dump truck enters and exits. Is cut off from the external environment.

10 Unloading equipment 11 Turntable 12 Anti-scattering curtain 13 Unloading building 14 Accepting hopper 20 Transport equipment 21 Vertical belt conveyor 22 Horizontal belt conveyor 23 Discharge height adjustment device 24 Spraying device 25 Containment housing 26 Belt feeder 27 Strut 30 Outflow Prevention equipment 31 Dam 32 Partition dam 33 Waterproof sheet 40 Leachate storage equipment 41 Storage tank 42 Storage tank group 43 Sand sedimentation tank 44 Sending pump 45 Lifting pump 46 Water level detection switch 47 Overflow pipe 48 Flow path switching device 50 Water quality improvement equipment 60 Leachate treatment equipment 100 Vehicles

Claims (6)

A facility for landfilling and storing radioactively contaminated waste sorted based on prescribed standards.
An unloading facility that accepts vehicles loaded with radioactively contaminated waste and unloads the radioactively contaminated waste,
A transport facility that transports unloaded radioactive contaminated waste to a predetermined location in a landfill, and
Outflow prevention equipment to prevent the outflow of radioactively contaminated waste from the landfill
A leachate treatment facility that treats leachate that leaches from radioactive material-contaminated waste landfilled in a landfill site,
A landfill storage facility for radioactively contaminated waste, which is characterized by being equipped with. The unloading equipment is
A turntable that turns a vehicle loaded with radioactive material contaminated waste,
A shatterproof curtain that opens and closes as the vehicle enters and exits to prevent the scattering of radioactively contaminated waste, and
The landfill storage facility for radioactively contaminated waste according to claim 1, wherein the facility is provided with. The transport equipment
A vertical belt conveyor that unloads unloaded radioactive material contaminated waste to a specified height, and
A horizontal belt conveyor that transports radioactively contaminated waste unloaded by a vertical belt conveyor to a predetermined position in a landfill, and a horizontal belt conveyor.
A discharge height adjustment device installed at the end of the lateral belt conveyor that expands and contracts according to the discharge height that changes with the landfill of radioactive material contaminated waste and adjusts the height of the drop port of the radioactive material contaminated waste. ,
A spraying device that is installed near the drop port and sprays water on the radioactively contaminated waste to be dropped.
The landfill storage facility for radioactively contaminated waste according to claim 1 or 2, wherein the facility is provided with. The outflow prevention equipment is
A dam that surrounds the landfill and has a management road at the top,
A partition weir that divides the landfill into multiple locations,
The landfill storage facility for radioactively contaminated waste according to any one of claims 1 to 3, wherein the facility is provided with. The leachate treatment facility
A leachate storage facility that temporarily stores leachate that leaches from radioactive material-contaminated waste that has been reclaimed in a landfill site, and a leachate storage facility that temporarily stores leachate.
A water quality improvement facility that improves the quality of the leachate stored in the leachate storage facility,
The radioactive material contaminated waste male landfill storage facility according to any one of claims 1 to 4, wherein the facility is provided with. The leachate storage facility is
Multiple storage tanks are installed in series to form multiple storage tank groups, and each storage tank group is switchably installed and configured in parallel.
The landfill storage facility for radioactively contaminated waste according to claim 5.

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