JPH11179318A - Waste disposal site - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste disposal site which is efficiently usable for prolonged time and capable of decreasing the amount of leachate and enabling the optimum intermediate treatment for various types of wastes. SOLUTION: This waste disposal site is divided by partitioning walls 2 into a plurality of sections Z, waste-receiving and -discharging facilities are installed for respective sections Z, and a waste intermediate facility (installation) 10 is installed in a section Z or near a section Z. The waste-receiving and -discharging facilities are constituted of belt conveyers and/or running lifts in the partitioning walls 2 defining the sections Z. On the other hand, the intermediate treatment facility (installation) 10 is constituted of a treatment installation for wide use comprising treatment facilities for combustion and incineration, solidification fuel manufacture, pulverization and classification, etc., and an advanced treatment installation comprising treatment facilities for molten glass solidification, contact extraction, etc., and a plurality of treatment installations separately usable depending on the types, the properties, and amounts of wastes are employed for constituting the intermediate treatment facility.

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 more particularly, it can be effectively used, can prolong the life, and can reduce the amount of leachate. Furthermore, the present invention relates to a waste disposal site that enables optimal intermediate treatment according to the type and properties of various kinds of waste.

[0002]

2. Description of the Related Art Conventionally, general waste such as household waste and non-combustible waste and industrial waste and the like discharged from factories have been detoxified for final disposal, such as incineration, and volume reduction for volume reduction. After the intermediate treatment, the final waste is transported to the landfill for managed waste and landfilled (stored). And the managed waste final disposal site is used only as a landfill site according to the degree of harm of the waste.

[0003]

However, in recent years,
There is a shortage of disposal sites for both general and industrial wastes, and it has become extremely difficult to set up new disposal sites to deal with them, against the background of environmental conservation. Conventionally, intermediate treatment facilities for reducing the volume and detoxifying waste for final disposal such as landfilling (storage) at a final disposal site, or for effective use by recycling, have been used. Since it is located away from the disposal site, it is necessary to transport the final waste after the intermediate treatment, and the transportation cost is high, which hinders the smooth disposal of the waste.

Further, in a conventional disposal site, rainfall in the disposal site is collected and treated together with leachate of the disposal site, so that a leachate treatment facility for draining into public waters and management cost for the same are large. Had become something. In the conventional intermediate treatment for final landfill disposal of waste at the disposal site, individual treatment according to the type of waste is performed at each factory or district, and intermediate treatment is performed at each factory or district. The final waste after treatment is transported to landfills and landfilled, and it is not always efficient to process a wide variety of wastes according to their types and properties in an optimal intermediate treatment. There was a problem that processing was not performed.

[0005] The present invention has been made in view of the above-mentioned problems, and can be used effectively, prolongs the life significantly, enables reduction of the amount of leachate, and enables various kinds of disposal. It is an object of the present invention to obtain a waste disposal site that enables an optimum intermediate treatment corresponding to the material.

[0006]

In order to achieve the above object, the present invention has the following arrangement.

(1) Divided into a plurality of sections by partition walls,
A waste receiving and discharging facility is provided in each of the compartments,
The intermediate waste treatment facility was installed in or close to the section.

(2) In the configuration of the above (1), the partition defining the partition is provided with a waste receiving / discharging facility comprising a conveyor and / or a lift.

(3) In the configuration of the above (1) or (2), the waste intermediate treatment facility is a general-purpose treatment facility comprising treatment facilities for combustion incineration, solid fuel production, pulverization / separation, etc. It consists of advanced processing equipment, which is a processing equipment for contact extraction, etc., and is composed of multiple processing equipment so that it can be used properly according to the type, properties and amount of waste.

However, according to the configuration (1), the waste disposal site is divided into a plurality of sections, so that an intermediate portion of a combustion incinerator or the like installed in or close to the section. When the waste is intermediately treated by the treatment facility, the waste can be temporarily stored (temporarily stored) using one of the plurality of sections, that is, the disposal site can be used as a temporary waste storage site. Function, eliminating the need for intermediate waste storage,
The disposal site can be used effectively. When the waste is temporarily stored in the section, the waste can be received in the section by the receiving and dispensing facility.

[0011] In addition, since the intermediate treatment facility (facility) is provided in or adjacent to the section, the waste is finally managed and stored in the disposal site (finally in the managed waste final disposal site). Before landfill), intermediate treatment in the intermediate treatment equipment,
For example, it is possible to reduce the volume by combining combustion incineration treatment and molten glass solidification treatment, and finally, the amount of waste to be managed and stored at the disposal site (hereinafter also referred to as final waste) is determined by the intermediate treatment. Although it depends on the type and capacity of the equipment, the volume is reduced (for example, reduced to 1/10 to 30) compared to the conventional disposal site, and the life of the disposal site is dramatically extended.

By making the disposal site a disposal site in which a plurality of compartments are formed, it is possible to easily distinguish the temporary storage compartment for intermediate treatment waste and the compartment for landfilling final waste such as after intermediate treatment. It becomes possible to manage. Also, the amount of leachate drainage required for draining to public waters can be significantly reduced.

That is, in a conventional disposal site, it is common to perform a wastewater treatment in a state where leachate and rainwater are mixed without distinction, but in the present invention, waste is stored (landfilled). Since the compartment and the other compartment are clearly distinguished, a leachate drain and a rainwater drain are separately provided at a position close to the compartment, for example, leachate discharged from waste in the compartment where waste is stored. Water is directed to the leachate drain for drainage and, for example, rainwater produced (falling) in compartments that have not yet received waste is drained through the storm drain. By discharging rainwater and the leachate from the disposal site without mixing, the load of leachate treatment can be significantly reduced.

In the configuration of the above (2), the receiving and dispensing facility including the conveyor and the traveling lift is provided on the partition wall that defines the section, so it is necessary to provide a long receiving and dispensing facility such as a belt conveyor inside the section. The partition is effectively used for temporary storage and landfilling, and the partition is provided with receiving and dispensing facilities. Therefore, the partition is used effectively, and from this point, the disposal site can be effectively used.

Further, since a belt conveyor and a lift are provided as a waste receiving and discharging facility, the waste for temporary storage is classified according to the form such as bulk materials, drums, etc., so that the receiving and discharging work at the disposal site can be efficiently performed. Can be In addition, when the lift is a lift in which a boom is rotatably provided in a horizontal plane, the receiving and discharging of the waste can be performed in the adjacent sections, and the receiving and discharging facility can be simplified.

In the configuration of the above (3), the intermediate treatment equipment includes general-purpose treatment equipment such as combustion incineration equipment, solidified fuel production equipment, crushing and crushing separation equipment, and advanced treatment equipment such as molten glass solidification equipment and contact extraction equipment. With such a configuration, the intermediate treatment facility enables intermediate treatment suitable for the characteristics of the intermediate treatment of the waste in accordance with the type, properties, amount, and the like of the waste.

In this case, since the disposal site is divided into small sections, the temporary storage of the waste can be performed in the section or in a predetermined area (location) in the section according to the type and / or property of the waste. Or, it is possible to classify and temporarily place them so as to be suitable for the intermediate processing. In order to temporarily place for a fixed period or a fixed time in each of the above-mentioned sections or in predetermined sections in a section for a certain period or for a certain time, it is possible to homogenize the components by devising storage methods such as stacking, etc. Mix with stored waste and adjust ingredients. Therefore, for example, general-purpose processing equipment such as combustion incineration equipment, solid fuel production equipment, crushing and crushing separation equipment, and advanced processing equipment such as vitrification equipment and ash melting equipment, each intermediate processing equipment affects component fluctuations for each receiving lot. It is possible to feed the component waste in a stable manner.

Since the intermediate treatment method is always constant for each type of waste due to the temporary placement at each section or at a predetermined location within the section, the waste is homogenized as described above. In addition, because a predetermined amount of waste is ensured, economical advanced treatment of waste that cannot be realized at all by the conventional intermediate treatment after receipt, for example, hazardous substances such as combustion ash, waste pesticides, contaminated soil, etc. Detoxification and volume reduction by solidification of waste by vitrification become possible. In order to economically and efficiently perform advanced processing, it is impossible to apply only a single processing technique, and it is necessary to combine some of various applied processing techniques to achieve systemization. For this purpose, an intermediate treatment process (equipment) according to the type and / or property of the waste is applied, and for stable operation of each intermediate treatment equipment, the feed components to each intermediate treatment equipment are kept constant. It is essential, but the present invention makes these possible.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings relate to an embodiment of the present invention. 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, and FIG. 1 is an enlarged sectional view taken along line A-A of FIG. 1, FIG. 3 is an enlarged plan view of a main part of FIG. 1, FIG. 4 is a sectional view taken along line BB of FIG. 3, and FIG. FIG. 6 is an enlarged perspective view of a part cut off along the line C-C and viewed from diagonally above. FIG. 6 shows a state in which the waste is received and temporarily stored (temporarily stored) in the final disposal site by the waste receiving facility, and the temporarily stored waste Is a block showing the flow of waste when the waste (final waste) after the intermediate treatment is returned to the disposal site and stored (landfilled) by sending the waste to the intermediate treatment facility (facility) by the dispensing facility and performing intermediate treatment. It is a figure, and the temporary storage (temporary storage) procedure for each type of waste at the disposal site and the intermediate treatment in the intermediate treatment facility Shows another example, Figure 7 is landfill waste, shows the water collection procedure rainwater and leachate compartments temporary like is completed, a cross-sectional view corresponding to FIG.

As shown in FIG. 1, a managed waste final disposal site (hereinafter sometimes simply referred to as a disposal site 1) is provided with a rainwater drain 2 at the center in a top view and a leachate drain disposed side by side on both sides. Grooves 3 and 3 are provided side by side, and waste receiving portions are provided on the left and right sides on both sides of the drain grooves 2 and 3, and a plurality of partitions Z are formed by the partition walls 2 in each of the waste receiving portions. Thus, it is configured. Each section Z is formed to extend in a direction crossing the longitudinal direction of the drain grooves 2 and 3.

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 pit. At the boundary between the bottom of the depression and the slope EA along the outer edge 1A of the disposal site 1 and the ground EA, a waterproof material 5 made of a rubber-like or asphalt-like mat is laid.
The leachate is configured not to penetrate into the ground EA.
The partition 2 defining the section Z has a height substantially extending to the surface of the ground.

When the disposal site 1 is connected to a group of factories that discharge a large amount of industrial waste and is located in a seaside zone or the like in consideration of the distribution costs of the waste, the respective sections Z are formed. It is desirable that the depression as a waste receiving portion to be formed be formed at the top of the ground surface by embankment forming the outer edge 1A from the ground surface as a dam. 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 that allows water to permeate and is squeezed under a predetermined pressure, is provided on the upper part of the water shielding material 5. The protective layer 6 is configured to prevent the waste from directly colliding with the water shield 5 when the waste is put into each section Z, and to prevent the water shield 5 from being damaged.

The upper surface of the protective layer 6 and the upper surface of the protective layer 6 constituting the bottom surface 6a of the disposal site 1 are easy for water to flow toward the drains 3 and 4 on the upper surface and inside of the protective layer. For this purpose, a slope of, for example, about 1/200 is provided so as to decrease toward the drain grooves 3 and 4. A plurality of leachate drain holes 7 are provided through the side wall 3a on the side wall 3a on the side where the section Z of the leachate drain groove 3 is located. The opening on the section Z side of the leachate drainage hole 7 faces the protective layer 6 and communicates with the inside of the protective layer 6, and water such as leachate penetrating the inside of the protective layer 6 is supplied to the leachate drainage hole. It is configured to be able to be guided to the leachate drain 3 through 7.

As shown in FIG. 4, the two leachate drainage grooves 3, 3 and the rainwater drainage groove 4 are each formed in a U-shape and similar in cross section, and each of the leachate drainage grooves 3 has a similar shape. The side wall 3a located on the section Z side and the other side wall 3b have the same height, and the side walls on both sides as the rainwater drainage groove 4 are also configured as the side walls 3b. Disposal site 1
The height of the connection point of the upper surface of the protective layer 6 constituting the bottom surface 6a of the leaching water drainage groove 3 to the side wall 3a 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 has a height substantially equal to the side wall 3 a of the leachate drainage groove 3.

Although the number of sections Z is not particularly limited, it is determined by comprehensively taking into account, for example, the annual scheduled throughput, the useful life, the type and capacity of the intermediate processing facility installed in the intermediate processing facility 10, and the like. Generally, it is desirable to divide into 10 to 30 sections Z. Each section Z is divided by the partition 2 as described above, so that rainwater does not seep into other sections Z.

On the other hand, in the waste disposal site 1 configured as described above, an intermediate treatment facility (equipment) 10 is installed at a position close to the section Z of the disposal site 1. In the intermediate treatment facility 10, general-purpose treatment facilities and / or advanced treatment facilities are provided as intermediate treatment facilities, singly or in a systemized (composite) form, depending on the type, properties and amount of waste, or economics. Can be

In this embodiment, although not shown in FIG. 1, the intermediate processing facility 10 includes a crushing / crushing / sorting facility, a solidified fuel (RDF) as an intermediate processing facility as shown in FIG. ) General-purpose treatment equipment consisting of equipment, combustion incineration equipment composed of fluidized bed incinerators or fluidized bed boilers, etc., and production of molten vitrification equipment, gasification equipment, oilification equipment, slurry raw fuel (SWM) A plurality of intermediate treatment facilities consisting of advanced treatment facilities including facilities, puffing (sludge conversion into raw materials for chemical industry), neutralization facilities, water treatment facilities, gasification and melting facilities, contact extraction (CEP) facilities, It is configured so that the most suitable intermediate treatment can be comprehensively performed for a wide variety of wastes that are installed in a complex manner and that can be accepted by a facility selected from a group of constituent facilities of these general-purpose treatment facilities and / or advanced treatment facilities.

In the present invention, the general-purpose treatment equipment is mainly intended for pre-treatment equipment for achieving advanced treatment, and the advanced treatment equipment is defined as a prescribed treatment that can be stored in a controlled disposal site. The main targets are equipment to be rendered harmless and equipment to achieve a predetermined volume reduction and / or recycling.

As shown in FIG. 5, a belt conveyor 11 or a lift 12 is provided in each section Z of the disposal site 1.
Is installed at the top of the partition walls 2 on both sides to define a waste receiving and discharging facility. In addition,
As the receiving and dispensing equipment, equipment corresponding to the receiving package is provided in each section. For bulk waste, in addition to the belt conveyor 11, a shovel loader (car),
A transport heavy machine 13 such as a bulldozer is also used. For drums, containers, and bagged waste, a forklift or the like is used as a transport heavy machine in addition to the traveling lift 12.

A belt conveyor 11 for receiving or discharging waste and a rail 12d laid in the longitudinal direction of the top of the partition 2 are provided on the walls of the partition 2 on both sides defining the section Z, that is, on the top. A lift 12 which is provided so as to be able to travel reciprocally is attached. The lift 12 is provided with a boom 12b facing a section Z and supported rotatably in a horizontal plane on a lift main body 12a, and a tip end boom is provided at a tip end of the boom 12b with respect to the boom 12b. It is provided so as to be telescopically fitted.

A waste hanging rope having a hook 12c at the lower end is provided on the tip boom so as to extend and contract freely via a sheave. Therefore, by moving the lift 12 in the longitudinal direction of the partition wall 2 and rotating the boom 12b, waste is loaded (received) or unloaded into and from the sections ZR adjacent to both sides of the partition wall 2 on which the traveling rail 12d is mounted. (Payout).

The belt conveyor 11 is of a reversible type,
It is configured such that waste can be received from the outside and temporarily stored in the section ZR, that is, temporarily stored, or the waste temporarily stored in the section ZR can be paid out for intermediate treatment.

The temporary storage of waste in each section Z is performed by placing the truck or shovel on the belt conveyor 11 of each section Z at the outer end of the disposal site (the end opposite to the drains 2 and 3). A waste transporting vehicle such as a loader transfers and transports waste introduced from the outside to a predetermined position in the compartment by the belt conveyor 11, and separates bulk waste by a cutting device (not shown). Unload it inside or put it in a drum,
The waste in bags and containers is lifted on the conveyor 11 by the lift 12 and unloaded into the compartment.

For work such as storage and stacking of the bulk waste in the section Z, a heavy loader such as a shovel loader (car) or a bulldozer which is loaded into the section Z from a heavy equipment loading port (not shown). 13 is also used as a receiving and dispensing facility.

The waste containing the drums, bags and containers is discharged from a waste transporting vehicle such as a truck or shovel loader at the outer end of the disposal site (the end opposite to the drains 2 and 3). And lifts the lift 12 directly on the traveling rail 12d inside the compartment (disposal site) to rotate or tilt the boom 12b at a predetermined position, and lowers the hook 12c to temporarily move the boom 12c to a predetermined storage location. It can also be placed.

When the waste temporarily placed in the predetermined section Z is transferred to the intermediate treatment facility 10, the waste is similarly discharged from the section Z by using the belt conveyor 11 and / or the lift 12, and the outer end of the disposal site ( The waste is transferred to a waste transporting vehicle such as a truck or shovel loader at the end opposite to the drain grooves 2 and 3 and transported into the intermediate treatment facility 10. Similarly, when the final waste treated in the intermediate treatment facility 10 is returned to the section Z for landfilling (storage), the outer end of the disposal site (the drains 2 and 3) is similarly used by the waste transporting vehicle. To the landfilling section Z using a belt conveyor 11 and / or a lift 12.

As shown by a two-dot chain line in FIG. 1, another reversible belt conveyor along the outer edge 1A of the outer end of the disposal site 1 (the end opposite to the drains 2 and 3). BC1,
BC2 may be provided, and the waste may be transferred to a belt conveyor 11 or a lift 12 provided on the top of the partition wall 2 via the conveyors BC1 and BC2 to convey waste to a predetermined position in a predetermined section. Such a conveyor BC
1, when the BC2 is installed, the unloading point from the waste transporting vehicle such as the truck or the shovel loader may be one location for each of the left waste receiving portion and the right waste receiving portion in FIG.

Further, as shown by a two-dot chain line in FIG. 1, the reversible traveling type belt conveyor BC3 is connected to the belt conveyor BC3.
1 and the position near the intermediate treatment facility 10, the waste temporarily placed in the section Z of the left waste receiving section in FIG. 1 is discharged from the section Z to remove the conveyor BC1. When the final waste treated at the intermediate treatment facility 10 is transported to the intermediate treatment facility 10 via the conveyor BC1 and returned to the section of the left waste receiving section of the disposal site 1 for landfilling (storage) Can be used. When the belt conveyors BC1, BC2, and BC3 are used as described above, a vehicle for transporting waste such as a truck and an excavator loader is required during the bidirectional transport between the intermediate treatment facility 10 and the disposal site 1. No longer.

By arranging one end of the conveyor BC2 near the intermediate treatment facility 10, the waste temporarily placed in the waste receiving section Z on the right side in FIG. The final waste that has been transported or intermediately treated in the intermediate treatment facility 10 can be returned to the section Z and landfilled.

As described above, in the present invention, when the waste is intermediately treated, a large number of sections Z divided by the partition walls 2 are provided.
Is used as a temporary storage (temporary storage) place for the waste, and the remaining sections ZU are used for landfill. In this embodiment, as shown in FIG. 1, two sections Z of the waste receiving section on the right side are used as landfill sections ZR, and the remaining sections Z are used as landfill (storage) sections ZU.

The waste temporarily stored in the section ZR of the disposal site 1 for intermediate treatment is as shown in FIG.
They are classified according to form, such as bulk, drums, bags, and containers. Examples of the bulk waste include sludge, paper waste, wood waste, metal waste, waste plastics (waste plastic), and rice cake. The waste in the drum can includes, for example, waste oil, waste acid, waste alkali, waste solvent, and the like. Examples of the bagged waste include incinerated ash, paper waste, waste plastic, waste agricultural chemicals, and the like. Examples of waste in containers include incinerated ash, paper waste, waste plastic, waste catalyst, and the like.

The wastes classified according to their form and type are received in the disposal site 1 according to the flow shown in FIG. 6, temporarily stored (temporarily stored), discharged, and transported to the intermediate treatment facility 10. The waste that has been subjected to intermediate treatment such as combustion and incineration in the intermediate treatment facility 10 is returned to the disposal site 1 and landfilled. At the time of receiving the initial waste into the disposal site 1, the division of the disposal site 1 or designation within the division is performed according to the form and type, and the waste is received at each designated place.

The wastes classified into the forms and types and designated as storage locations are disposed on a belt conveyor facing a predetermined section ZR where the wastes of the disposal site 1 are temporarily stored from the waste transport vehicle. After being transferred to the storage position of the section ZR and transported to the storage position of the section ZR, the bulk waste is dropped into a predetermined storage location of the section ZR by a cut-out device (not shown) attached to the conveyor 5, and temporarily stored therein. The waste in the drum, in the bag, or in the container is lifted from the conveyor 5 by the lift 12 and is temporarily stored in a predetermined storage location in the section ZR.

The waste classified by form such as the drum can is directly received from a waste transporting vehicle by a lift 12 located at a predetermined section ZR temporarily stored in the waste transporting vehicle, and the waste is received by the lift 12. Can be temporarily stored in a predetermined storage location of the section ZR.

In this way, the wastes are successively carried into predetermined storage locations where the division is designated in advance in the section ZR by form or type, and are temporarily stored (temporarily stored).

When the waste is temporarily stored in a predetermined section ZR, the waste is individually transferred from a transport vehicle to an individual belt conveyor 11 or lift 12 installed on the top of the partition 2 in each section Z. Instead, if the reversible traveling belt conveyors BC1 and BC2 are installed and used, the waste brought from outside to the disposal site 1 by a transportation vehicle may be transferred to one of the conveyors BC1 or BC2. Therefore, waste receiving work efficiency is improved.

When the temporarily placed waste is transferred from the section ZR to the intermediate treatment facility 10, the waste of the type, properties and quantity corresponding to the various intermediate treatments (equipment) in the intermediate treatment facility 10 is received. It is dispensed from the section ZR in the reverse order. That is, bulk materials from the temporary storage area of the section ZR are transferred by a receiving and dispensing facility consisting of a conveyor heavy machine 13 such as a shovel loader and a forklift and a belt conveyor 11, and drums, bags, containers and the like are loaded on a lift 12 or a belt conveyor. Predetermined waste is discharged by the receiving and discharging facility 11, transferred to a waste transport vehicle at a position outside the disposal site 1 of the lift 12 or the belt conveyor 11, and sent to the intermediate treatment facility 10.

When the above-mentioned reversible belt conveyors BC1, BC2, and BC3 are installed and used when transferring the temporarily placed waste from the section ZR to the intermediate treatment facility 10, the lift can be lifted as described above. 12 or belt conveyor 11
There is no need to reload the waste transport vehicle at the outer end position of the disposal site 1, and the dispensing efficiency is improved.

In the expansion facility of the intermediate treatment facility 10, the sludge is instantaneously depressurized and flushed from a heated and pressurized state, thereby destroying the cell membrane on the sludge surface and removing the water held by the sludge particles in the cell membrane. By letting it go outside, the solid dehydrated sludge is liquefied, made easy to handle, and processed into a raw material for the chemical industry such as a raw material for a coal gasification plant. The raw material for the chemical industry is recycled. Further, in the combustion and incineration equipment, for example, sludge, waste oil, waste alkali, grease, paper waste, wood waste, dust, and the like are incinerated.

In the molten vitrification equipment, the incinerated ash and waste such as contaminated soil, waste pesticide, waste solvent, dredged sludge, etc. are generated by supplying electricity to the electrode inserted in the waste. Molten with Joule heat to reduce the volume and render it harmless as a vitrified body. The obtained vitrified body can also be used as a building material such as an aggregate. In the solidified fuel facility, waste plastic, waste oil, sludge, combustion ash, and the like are produced as solid fuel, and the solid fuel is effectively used as fuel for the combustion and incineration facility.

In the contact extraction (CEP) equipment, waste solvent, waste catalyst, waste pesticide, shredder dust, ASR, hazardous waste, etc. are fed to a molten metal bath, and the waste metal is acted as a catalytic solvent substance by the molten metal. By breaking the molecular bonds of the components and separating the components, and further adding a chemical reaction aid such as lime, the components are hydrogen, a gas such as carbon monoxide, an inorganic slag such as ceramics useful as a cement material,
Regenerated into metals such as nickel and iron. These recycled products are reused as safe and valuable raw materials that can be sold on the market. Hazardous waste is completely decomposed and rendered harmless.

The intermediate treatment facility of the intermediate treatment facility 10, for example, combustion ash (incineration ash) as final waste after incineration by a combustion incinerator, or the combustion ash is further detoxified by a molten vitrification facility or the like. A part of the solidified material as final waste generated when the wastewater is discharged and a part of the slag and the like discharged by the contact extraction are carried out from the intermediate treatment facility 10 by a waste transporting vehicle, and furthermore, a predetermined amount of waste is discharged from the disposal site 1. Is transferred to the belt conveyor 5 or the lift 12 on the partition wall 2 of the landfilling section ZU, and is carried into the section ZU by being dropped at a predetermined position of the section ZU and landfilled.

In the return transportation of the final waste to the disposal site 1 after the intermediate treatment in the intermediate treatment facility 10,
The above-mentioned reversible traveling belt conveyor BC1, BC2, BC
3 and use it as described above, it is not necessary to reload the waste 12 from the vehicle for transporting waste to the lift 12 or the belt conveyor 11 facing the landfill section ZU at the outer end position of the disposal site 1. The efficiency of receiving goods is improved.

However, in the intermediate treatment facility 10 of this embodiment, a plurality of intermediate treatment facilities are provided in a complex manner as described above, and various kinds of wastes are selected according to the properties of the wastes and the form of acceptance. In addition, the intermediate processing can be performed by selecting an optimum intermediate processing from the above-mentioned various intermediate processing equipment groups, including the effective use by recycling the product of the intermediate processing.

That is, in this embodiment, the intermediate processing facility 10
In the intermediate treatment in the above, since the waste to be treated and the intermediate treatment method are diverse, a waste intermediate treatment simulation program for selecting the best mix of the waste and the treatment method is applied and executed, and the appropriate The intermediate processing is performed, and a database of the waste such as the type of the waste and, for example, the calorific value and the properties of the components is created and managed.

Therefore, in the present embodiment, since a large number of sections Z are formed in the repository 1,
Various types of waste can be temporarily stored in R by form, type, or property, and waste management according to the optimal combination of temporary storage and intermediate treatment in the disposal site 1 can be efficiently performed.

The classification of the waste temporarily placed in the disposal site 1 varies depending on the relation with the intermediate treatment method. For example, in the case of maximizing waste reduction and recycling, the classification depends on each classification. It is desirable to make the classification as small as possible in order to perform the optimal intermediate processing. That is, it is desirable to classify and manage wastes having different types and properties not only by form but also by the same form. From the viewpoint of economic efficiency and the like, it may be more important to homogenize as described later for collectively treating the same kind of wastes than this small classification.

Further, in this embodiment, since the waste can be temporarily stored in each section ZR for a certain period of time, the components can be homogenized by devising a method of temporarily storing waste, for example, a method of stacking. At the same time, the components can be adjusted by, for example, mixing with waste temporarily placed in another place in the same section ZR. For example, burning ash into various different factories,
When receiving from a device or the like, the content of the specific component varies (for example, the chlorine content is 5%, 3%, 1%),
Disposal site 1 when the fluctuation of the grade of the received ash is large
In one section ZR to homogenize them (e.g. to a chlorine content of 2%) and in another section ZR
In the same manner, the combustion ash that has already been laminated and homogenized can be discharged and sent to the intermediate treatment facility.
Therefore, each intermediate treatment facility can feed the component waste stably without being affected by the component fluctuation for each receiving lot, and the intermediate treatment facility can be operated stably.

In addition, the temporary treatment at each section ZR or at a predetermined location within the section ZR allows the intermediate treatment method to be always constant for each type or property of the waste. It is homogenized and a predetermined amount of waste is secured, so after receiving it, intermediate treatment is sequentially performed.Economical advanced treatment of waste that is impossible at all with the conventional methods, such as combustion ash, waste pesticides, pollution Hazardous waste such as soil can be reduced in volume and made harmless by molten glass solidification, contact extraction of hazardous waste such as waste solvents, waste catalysts, waste agricultural chemicals, and the like. In the present embodiment, a plurality of intermediate treatment facilities in which various treatment technologies are combined or systemized (compositely combined) according to the kind and / or property of the waste are applied, and the waste to be fed to each intermediate treatment facility is applied. Can be kept constant as described above, so that advanced treatment can be carried out economically and efficiently.

In this embodiment, since the intermediate treatment facility (equipment) 10 is provided close to the section Z, the waste is finally landfilled at the managed waste final disposal site 1. Before the treatment, the intermediate treatment facility 10 can reduce the volume by combining the intermediate treatment, for example, the combustion incineration treatment and the molten vitrification treatment. Although it depends on the type and capacity of the intermediate treatment facility, the volume is reduced to, for example, 1/10 to 1/30 as compared with the conventional disposal site, and the life of the disposal site 1 can be significantly extended. .

Further, in the present embodiment, the waste for intermediate treatment is temporarily placed in a part of the disposal site 1 for temporary use, so that the disposal site 1 can be effectively used. In addition, the disposal site 1 is divided into small sections to form sections, and the sections are used as the temporary storage areas, so that the temporary storage section ZR and the final waste landfill section Z after intermediate treatment are managed separately. Becomes easier. In addition, a belt conveyor 1 is placed on a partition 2 that defines a section Z of the disposal site 1.
1. By installing a waste receiving / discharging facility consisting of a lift 12, the disposal site can be effectively used.

Then, the waste receiving and dispensing equipment is connected to a lift 12 running on the partition 2 defining the section Z, a belt conveyor 11 installed on the partition 2, or another embodiment as described above. Belt conveyor BC1, BC2,
By using BC3, it is possible to improve the efficiency of waste collection and payment.

In this embodiment, the intermediate processing facility 10
Is disposed in a place close to the section Z of the disposal site 1, the distance between the temporary storage site, the disposal site 1 and the intermediate treatment facility 10, is significantly reduced, and the intermediate treatment facility 10 is used for intermediate treatment from the disposal site 1 to the intermediate treatment facility 10. The transportation of waste and the transportation of final landfill waste intermediately treated in the intermediate treatment facility 10 to the disposal site 1 are significantly reduced and efficient, and the disposal site 1 and the intermediate treatment facility 10
During this time, the transfer of waste is made more efficient. In addition, transportation by a waste transport vehicle such as a truck between the disposal site 1 and the intermediate treatment facility 10 should be eliminated by installing the belt conveyors BC1, BC2, and BC3 shown as the other embodiments. It is also possible to improve the efficiency of waste receipt and payment.

In the disposal site 1 of this embodiment, since a plurality of sections Z are formed, the section U which receives waste is used.
Z and the compartment UNZ that has not yet received waste can be clearly distinguished by the partition wall 2. For this reason, as shown in FIGS. 3 and 4, a rainwater guide lid 8 is installed at the upper opening of the leachate drain 3 facing the section UNZ for the section UNZ that has not yet received the waste. By doing so, the partition UN
Z, which is a bottom surface of the section UNZ, which is sloped so as to descend toward the leachate drainage ditch 3 side.
The rain flowing down on the upper surface 6a can be guided to the upper surface of the rain water guide lid 8, guided to the rain water guide groove 4, and drained.

In this case, since the rainwater outflow preventing flanges 8a are provided on both sides of the upper surface of the rainwater guide lid 8 in the width direction at substantially the same interval as the inner width of the section Z, the rainwater can be discharged. Outflow to the groove 3 is prevented. A rubber plate 8b for sealing rainwater is attached to the back surface of the rainwater guide lid 8, and the rubber plate 8b and the side wall 3 of the leachate drainage groove 3 are attached.
a because it is in close contact with the top of
It is prevented from invading.

For the section UZ which is receiving the final waste for landfill or the bulk waste for temporary storage, the upper opening of the leachate drain 3 facing the section UZ is
The rainwater guide lid 8 is not attached or detached, and the rain falling on the waste is used as leachate through the upper end of the side wall 3a of the leachate drain groove 3 and the plurality of leachate discharge holes 7 in the side wall 3a. It can be made to flow to the drain 3.

As shown in FIG. 7, the rainwater guide lid 8 is leached out of the section Z in which the landfill of the waste has been completed or the section ZR in which the reception of the temporary bulk waste has been completed. The rainwater falling on the deposited waste 20 can be guided by the rainwater guide lid 8 and discharged to the rainwater drain 4 by being attached to the upper opening of the water drain groove 3.

That is, as shown in FIG.
Cover 21 is provided on the upper surface and the slope of the rainwater guide 0, and a waterproof sheet 22 is laid on the surface so that the lower end is located near the left end of the rainwater guide lid 8. To prevent rainwater from penetrating into the waste 20 and to guide it to the rainwater guide lid 8 so as to flow out into the rainwater drain 4
The amount of leachate discharged from the waste 20 can be minimized.

The water that has already penetrated into the waste 20,
Alternatively, when the waterproof sheet 22 is broken, the water that has permeated into the waste 20 is provided as a leachate by a plurality of leachate drain holes provided on the side wall 3 a of the leachate drain groove 3 via the protective layer 6. 7 to the leachate drain 3 to collect water.

In the manner described above, rainwater and leachate can be separated and collected, and the amount of leachate requiring drainage treatment can be minimized.

In the above embodiment, the intermediate processing facility (equipment)
Is close to the outside of the repository 1, that is, the section Z of the repository 1.
Although the case where the intermediate treatment facility (facility) is installed in the vicinity of the disposal site 1 is shown, the intermediate treatment facility (facility) may be installed inside a section in the disposal site 1.

[0073]

According to the first aspect of the present invention, the disposal site is divided into a plurality of sections by the partition walls, a waste intermediate treatment facility is provided adjacent to or in the section, and each section is disposed of. With the provision of a receiving and discharging facility for goods, when the waste is intermediately treated by the intermediate treatment facility, the waste is carried into and out of an appropriate section of the disposal site by the receiving and discharging facility, so that the disposal site can be treated for intermediate treatment. Can be functioned as a temporary storage place, and a waste storage place for intermediate treatment is not required, and the disposal site can be used effectively.

Further, since the intermediate treatment facility is provided close to or within the compartment of the disposal site, the volume of the waste can be reduced by the intermediate treatment facility, and the waste to be landfilled can be reduced. Therefore, the volume of waste to be finally managed and stored (landfilled) in the disposal site can be significantly reduced, and the life of the disposal site can be effectively extended.

Further, since a plurality of compartments are formed by partition walls in the disposal site, the temporary storage (temporary storage) compartment for intermediate treatment waste and the compartment for final waste disposal such as after intermediate treatment are managed separately. It is easy to do this, and it is possible to clearly distinguish the landfilled areas from those not yet used for landfilling, etc., so that leachate and rainwater discharged from those areas can be effectively used. It can be separated and drained from the disposal site. Accordingly, the amount of leachate discharged from the disposal site can be significantly reduced, and the amount of leachate that needs to be rendered harmless to be discharged to public waters can be significantly reduced.

Further, since the intermediate treatment facility is installed close to or in the compartment where the temporary disposal site is to be temporarily placed, the distance between the temporary disposal site and the intermediate treatment facility is significantly reduced, and The transport of intermediate waste to intermediate treatment facilities and the transportation of final landfill waste intermediately treated by intermediate treatment facilities to disposal sites have been significantly reduced and streamlined. It is possible to make the transfer of waste during the process more efficient.

According to the second aspect of the present invention, since the receiving and dispensing facility including the conveyor and the traveling lift is provided on the partition wall that defines the section, it is not necessary to provide a long receiving and dispensing facility such as a belt conveyor inside the section. Therefore, the inside of the compartment is effectively used for landfilling and temporary storage, and the partition is provided with a receiving and dispensing facility, so that the partition is used effectively, and from this point, the disposal site is also effectively used.

Further, since a belt conveyor and a lift are provided as a waste receiving and discharging facility, the waste for temporary storage is classified according to the form such as bulk or drums, so that the receiving and discharging work at the disposal site can be efficiently performed. Can be In addition, when the lift is a lift in which a boom is rotatably provided in a horizontal plane, the receiving and discharging of the waste can be performed in the adjacent sections, and the receiving and discharging facility can be simplified.

According to the third aspect of the present invention, the intermediate treatment equipment comprises general-purpose treatment equipment such as a combustion incineration equipment, a solid fuel production equipment, a crushing and crushing separation equipment, and advanced treatment equipment such as a vitrification equipment and an ash melting equipment. Therefore, the intermediate treatment equipment can perform an intermediate treatment suitable for the characteristics of the intermediate treatment of the waste according to the kind, property, amount, and the like of the waste.

In this case, since the disposal site is divided into sub-compartments, the temporary storage of the above-mentioned waste is carried out in the said compartment or in a predetermined area (place) in the compartment according to the type and / or property of the waste. Alternatively, they can be temporarily placed in sections so as to be suitable for intermediate processing. By temporarily placing for a certain period or for a certain period of time in each of the above compartments or at predetermined locations within the compartments, it is possible to homogenize the components by devising storage such as stacking, etc. It can be mixed with the waste temporarily placed at a predetermined location and the components can be adjusted. Therefore, for example, a stable feed of the component waste can be supplied to each of the intermediate treatment facilities as described above without being affected by the component fluctuation for each receiving lot, and the intermediate treatment facilities can be stably operated.

The temporary treatment at each section or at a predetermined position in each section allows the intermediate treatment method to be always constant for each type or property of the waste. Since a predetermined amount of waste is secured, economical advanced treatment of waste, which is impossible at all with the conventional method of intermediate treatment after acceptance, such as detoxification and volume reduction by molten glass solidification, etc. is possible Becomes This volume reduction ensures that the life of the disposal site is prolonged. In the present invention,
Various intermediate treatment technologies are combined according to the type and / or property of the waste, and a plurality of combined intermediate treatment facilities are applied, and the components of the waste supplied to the intermediate treatment facilities are applied as described above. Since it can be kept constant, the advanced treatment can be carried out economically and efficiently.

Further, by combining various intermediate treatment techniques according to the type and / or property of the waste and applying a plurality of complex intermediate treatment facilities, the recycling after the intermediate treatment is maximized. In this regard, the amount of final waste landfilled at the disposal site can be minimized, and the life of the disposal site can be significantly extended.

[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 of the disposal site of FIG. 1 taken along line A-A.

FIG. 3 is an enlarged plan view of a main part of the disposal site of FIG. 1;

FIG. 4 is a sectional view of the disposal site of FIG.

FIG. 5 is a partially enlarged perspective view of the disposal site of FIG. 1 cut along line CC and viewed obliquely from above.

[Fig. 6] Receiving waste at the disposal site and placing it temporarily (temporary storage)
FIG. 7 is a block diagram showing the flow of waste when the temporarily placed waste is discharged from a disposal site to an intermediate treatment facility, and the waste after the intermediate treatment is returned to the disposal site and stored (landfilled). FIG. 4 is a diagram showing an example of forms of various types of wastes, temporary storage procedures for each type, and an intermediate treatment facility in an intermediate treatment facility at a disposal site.

7 is a cross-sectional view corresponding to FIG. 4, illustrating a collection point of rainwater and leachate in a section in which landfilling of waste or the like has been completed.

[Explanation of symbols]

Reference Signs List 1 Waste disposal site (managed waste final disposal site) 2 Partition wall 3 Leachate drainage ditch 4 Rainwater drainage ditch 5 Waterproof material 6 Protective layer 7 Leachate drainage hole 8 Rainwater guide lid 10 Intermediate treatment facility (equipment) 11 Belt conveyor (waste receiving and dispensing equipment) 12 Traveling lift (waste receiving and dispensing equipment) 12a Lift body 12b boom 12c hook 12d traveling rail Z section (disposal site) ZR waste temporary storage section ZU waste landfill (storage) Compartment UZ Receiving waste (in use) Compartment UNZ Receiving waste (unused) Compartment BC1, BC2, BC3 Belt conveyor (waste receiving and dispensing equipment)

Claims (3)

[Claims] The present invention is characterized in that it is divided into a plurality of sections by a partition, and a waste receiving and discharging facility is provided in each section, and a waste intermediate treatment facility is installed in the section or in close proximity to the section. Waste disposal site. 2. The waste disposal site according to claim 1, wherein a waste receiving / discharging facility comprising a conveyor and / or a lift is provided in said partition wall defining said partition. 3. The waste intermediate treatment facility comprises a general-purpose treatment facility comprising combustion and incineration, solidified fuel production, pulverization / separation, etc., and an advanced treatment facility comprising molten vitrification, contact extraction, etc. 3. The waste disposal site according to claim 1, wherein the waste disposal site is constituted by a plurality of processing facilities so that they can be properly used according to the type, property, and amount of the waste.