JPH10156310A - Pretreatment of material to be treated for reclamation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a pretreatment method for materials to be treated for reclamation which prevents generation of a large quantity of flies by septic waste, such as left-overs, leaving of the remains scattered everywhere by stray dogs, etc., and generation, etc., of malodors in reclaimed lands, prevents the occurrence of splashing, fires, etc., of combustible waste by wind, lessens waste water load (chemical treatment, etc.), is helpful for safety, life prolongation and ground stability and successfully utilizes the waste, such as clay, clayey sludge and inorg. mud, for solid formation. SOLUTION: The materials W0 mainly composed of the waste including the septic org. matter, such as left-overs, fruits and vegetables, combustible org. matter, such as plastic, paper and wood and/or inorg. matter, such as stones and metals, to be treated for reclamation are agitated and mixed with water impermeable binders B, such as clay, clayey sludge and inorg. mud, after sorting and pulverizing in a mixer 60 and thereafter, the mixture is solidified to water impermeable solids SM by a molding machine 70.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to decoctable organic matter and plastics,
The present invention relates to a method for pretreating an object to be landfilled, wherein an object to be treated containing a combustible organic substance such as paper or wood and / or an inorganic substance such as stone or metal is formed into a solid substance for landfill.

[0002]

2. Description of the Related Art Mixed controlled waste as described above,
For example, when burying in a treated area covered with a waterproof sheet in the mountains, a drainage system is provided to treat or sediment the wastewater,
It is necessary to put cover soil in layers alternately to prevent fire and scattering. Also, stable waste plastic and glass,
Pottery, porcelain, earth and sand, concrete and metal materials were buried almost in their original form without covering soil. On the other hand, it was also expensive to treat clay and inorganic mud produced by the foundation work of construction civil engineering, industrial waste clay produced when sand is produced from mountain rocks, and clay-like sludge produced from a concrete mixer truck.

[0003]

In recent years, the amount of general waste and industrial waste generated from homes and business establishments has increased remarkably and has become widespread due to the sophistication of living standards, mass production and mass consumption. In the landfilled with tarpaulins, large amounts of flies are generated, mice, crows, wild dogs, etc. are gathered and scattered, and fire and foul odors are generated. Or scattered by the wind, deteriorating the environment, shortening the landfill life at the treated land,
This is a major problem today, such as the high cost of wastewater treatment.

The present invention has been devised in view of the above, and has produced a large amount of flies due to putrefactive wastes such as garbage, vegetables, fruits, etc., and scattered foods such as rats, crows and wild dogs, and generation of offensive odors. It can also prevent flammable waste such as plastic, paper, and sheets from being scattered by the wind and the occurrence of fire, and can reduce the drainage load (chemical treatment, sedimentation treatment, etc.) at the treatment site and ensure safety. It is an object of the present invention to provide an environment-friendly pretreatment method for landfill objects, which is useful for prolonging the life and stabilizing the ground, and in which waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming solids.

[0005]

According to a first aspect of the present invention, there is provided a method for pre-treating an object to be landfilled, comprising the steps of: mixing an object mainly composed of waste to be landfilled in a mixing machine; It is characterized by being stirred and mixed with a water-impermeable binder such as clayey sludge, inorganic mud, cement or the like, and then molded into a solid by a molding machine.

Accordingly, in the pretreatment method for landfill objects according to claim 1 having the above-mentioned structure, even if only putrefactive organic substances or flammable organic substances, inorganic substances alone, or a mixture thereof are used. Is mixed with an impermeable binder such as clay, clay-like sludge, inorganic mud, cement, etc., and formed into a solid that is impermeable to water and insoluble in water. Therefore, a large amount of flies are generated against spoilage waste,
Prevents rattles, crows, wild dogs, etc. from escaping and generating odors. It also prevents flammable waste such as plastics, paper, sheets, etc. from being scattered by the wind and the occurrence of fires. Treatment, sedimentation treatment, etc.), and is useful for safety, life extension, and ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above. In addition, the solid material is slow-curing and is flattened when crushed by a burtosa or the like in a landfill, which is advantageous in extending the life of the landfill.

[0007] In the pretreatment method according to the second aspect, incineration ash and fly ash (fly ash) to be landfilled.
Ingredients and / or flammable waste such as plastics, paper, wood, etc. are mixed and mixed with non-permeable binders such as asphalt, clay, clay-like sludge, inorganic mud, cement, etc. in a mixer before molding. It is characterized by being formed into a solid material in a machine. Therefore, regenerated asphalt and the like produced from a large amount of asphalt appearing during road renovation may be fermented or decomposed depending on the temperature, even if solidified decayable organic matter such as garbage, fruits and vegetables,
As a stable binder, it does not allow water to pass through the inorganic object. Therefore, elution by water can be prevented even when heavy metals are contained in the object. In addition, flammable waste such as plastics, paper, and sheets of building materials can be prevented from scattering or generating fire due to the wind, reducing the drainage load (chemical treatment, etc.) at the treated land and improving safety and prolonging life. Useful for ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above.

[0008] In the pretreatment method of the landfill object according to the third aspect, the inorganic object to be processed containing a heavy metal is stirred and mixed with the impermeable binder containing a chelating agent. Even if a heavy metal, for example, lead is mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a chelate compound insoluble in water. The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be kept to a minimum. The solid material with good shape retention obtained by using a water-impermeable binder prevents the elution of lead even when poured into water for landfill,
It becomes possible to treat almost the same as the stable type.

In the pretreatment method of a landfill object according to a fourth aspect of the present invention, the object to be bagged is sent from a fixed-rate supply machine to a bag breaking machine, and supplied from the bag breaking machine to a belt conveyor. The treated material is magnetic materials and non-ferrous materials, valuables such as cullet are sorted and removed, and then the sediment is sorted and removed by a sieve sorter such as a rotary sieve or a rotating roll. The crushed material is crushed by a crusher, and the flake-like workpiece is stored in a silo with a quantitative feeder, and the binder and the workpiece flakes are respectively quantitatively supplied to a mixer, stirred and mixed, and then solidified by a molding machine. You. The objects to be processed packed in bags or containers are also automatically supplied to the belt conveyor by the bag-breaking machine, and the valuables are sorted and removed, so that the resources can be recovered and the subsequent processing equipment can be prevented from being worn. In addition, the sediment is sorted out and removed by the sieve sorting, so that the subsequent processing equipment can be prevented from being worn. The solidification molding machine can be continuously operated by storing the fragments to be treated crushed by the crusher in a silo, and the component can be appropriately adjusted by the quantitative feeder.

[0010] In the pretreatment method of the landfill object according to the present invention, the inorganic object to be processed containing heavy metals is removed by a magnetic separator to remove magnetic substances such as iron, and aluminum is removed by an aluminum separator. Then, there is provided a sorting block in which a plurality of rotating rotors in which a plurality of large and small rings are alternately arranged in the axial direction are arranged in a longitudinal direction of a frame in which a plurality of rotating rotors are arranged so as to form a sieve between the rings of adjacent rotors. The separated rotor separator sorts the sieve through the sieve and the conveyed medium-large one.

Therefore, it is possible to select a ferrous metal having magnetism by a magnetic separator, to recover iron resources and prevent abrasion of subsequent processing equipment, and to use aluminum resources which consume a large amount of electric power during manufacturing. Can be collected by an aluminum sorter. Next, the rotor separator efficiently removes combustible organic substances without causing clogging while stirring by rotation of the plurality of arrangement rotors, even when the mixed workpiece supplied from one end upper side is wet or wet. Oversized non-repellent lightweight and non-combustible inorganic materials are overwhelmingly large and medium-sized, and large-diameter rings and small-diameter rings alternately arranged in the axial direction of adjacent rotating rotors. Can be sorted into two types: powder particles falling from the sieve spacing formed by each other and earth and sand. Therefore, it is possible to easily perform the secondary sorting operation and the sorting and pulverizing operation for repulsive heavy objects, and to prevent the subsequent processing equipment from being worn by removing the earth and sand.

[0012]

FIG. 1 is a flowchart of a typical embodiment of a method for pretreating a landfill object according to the present invention, FIG. 2 is a longitudinal sectional view of a bag breaking machine used in the pretreatment method, and FIG. Is a side view of an aluminum separator used in the pretreatment method, FIG. 4 is a side view of a rotor separator used in the pretreatment method,
5 is a plan view of a main part of a sorting block of the rotor separator, FIG. 6 is a plan view of a screw crusher as a crusher used in the pretreatment method, and FIG. 7 is a crusher used in the pretreatment method. FIG. 8 is a vertical sectional view of a cutter type crusher as an example, FIG. 8 is a sectional view of a solidification molding machine used in the pretreatment method, and FIG. 9 is a horizontal sectional view of the solidification molding machine.

As shown in FIG. 1, in the method for pre-treating an object to be landfilled with waste, organic materials such as sewage, fruits, vegetables, and the like, and combustible materials including plastic, paper, wood, etc., are wrapped in bags or containers. ,
In addition, refuse W0 in which inorganic substances such as stones and metals are mixed is sent to the bag-breaking machine 10 from an input means such as a shovel loader via a quantitative feeder 3 such as a screw feeder. As shown in FIG. 2, as the bag breaking machine 10, a rotor 15 that is rotationally driven in the direction of arrow R <b> 1 in a casing 12 having a hopper 11 with inclined side plates forming a processing space 16 narrowed downward.
And a plurality of pairs of plywood blades 15A arranged in the longitudinal direction of the rotor 15 are used. Rotor 1
5 is supported by a bearing B on the central portion of the upper partition plate 17A which crosses between the plywood blades 15A. Under the upper partition plate 17A, the longitudinal member 1 of the fixed blade is placed on the arc surface.
A lower partition plate 17B in which a coarse screen S is formed by fixing a plurality of pieces 8 is provided.

The mixed garbage W0 is spread from the bag breaking machine 10 onto the belt conveyor C, and is used by an operator to remove explosive substances such as gas cylinders and unsuitable substances N such as large stones, and to remove non-ferrous materials such as large stones. Manual selection is performed to select valuables V such as cullet. Further, various magnetic metals MM such as a steel frame are sorted by a magnetic sorter 20 'of an electromagnet. Those valuables are recycled. The remaining waste W1 is sent to the aluminum sorter 20, where the aluminum AL is sorted.

[0015] As shown in FIG.
A rotating aluminum separator of a permanent magnet type drum, the input aluminum is a good conductor, causes electromagnetic induction by magnetic field lines, generates eddy current, and generates a strong AC magnetic field by a high-speed rotating drum 22 having a permanent magnet 21. As a result, it is repelled by the eddy current generated inside the aluminum and is ejected. That is, the waste W1 including aluminum and other refuse is supplied onto the peripheral loop belt 23 provided with the short stopper, and the geared motor 24 is supplied.
Is ejected from the permanent magnet drum 22 of one of the belt rotors driven to rotate, and is sent from the end discharge port 25 to an aluminum rolling mill or the like, and the remaining processed material W2 is supplied from the inner discharge port 26 to the rotor separator of the sieve sorter 30. Sent to

As shown in FIGS. 4 and 5, there are two types of rotor separators 30: the processed material W2, the sediment W3 that has passed through the sieve, and the medium-sized material W4 that is conveyed from one end to the other end. As shown in FIGS. 4 and 5, a plurality of rotating rotors 31 in which large-diameter annular bodies 31A and small-diameter annular bodies 31B are alternately arranged in the axial direction are formed into large-diameter annular bodies between adjacent rotors. 31
A and a small-diameter annular body 31B are arranged on a frame 30A with a sieve gap G therebetween to form a sorting block, and the block sends the workpiece W2 supplied from above one end to the other end. Each of the rotors 31 is rotated by the rotation drive device 32 so as to convey the medium-large object W4 to the other end, and the mixed small workpiece W3 such as earth and sand is rotated by the large-diameter wheel 31 of the rotor 31.
A is dropped from the sieve G between the small-diameter annular body 31B and the small-diameter annular body 31B for sorting.

The rotor 31 has a large-diameter wheel body 31A mounted on a square shaft 30C having a gear 32A forming a rotary drive device 32 fixed to one end thereof.
And the small-diameter annular body 31B of the spacing piece are alternately fitted and arranged in the axial direction. The large-diameter annular body 31A has a projection 31a on the side surface to adjust the size of the sieve G. Sieve sorter 30
In addition, trommel of a rotary sieve or the like is used. The medium-large object W4 is then sent to the crusher 40, where the small object W3 is processed.
When most of the soil and sand are buried, they are sent to a stirrer / mixer 60 described later to be used for forming solid matter.

The crusher 40 is used when there are many large objects. For example, as shown in FIG. 6, the crusher 40 is decelerated with a motor 44A so as to bite from the top into the working chamber 42A inside the casing 42 below the hopper 41. The two crushing screws 43A and 43B which are driven to rotate at a constant speed with the machine 44B are horizontally supported, and crush large wastes such as containers and various containers and discharge them from below through a coarse screen SC. I have. This crushing breaks down plastics, wood, etc. from the composite product. Crushing screw 43A,
Protruding blades of various shapes can be appropriately provided on the outer peripheral edge of 43B to promote biting of the crushed object.

In addition, as the crusher 40, a conventional hammer crusher or rotary press crusher is appropriately selected and used according to a large amount of contaminants in the waste. Screw crushers are also available in two-shaft and single-shaft types, and include a plurality of longitudinal fixed blades on the rotating tapered crushing screw part and straight crushing screw part and the casing inner surface, and a ring-shaped fixed blade between the tapered part and the straight part. The crushing can be performed between the crushed pieces, and the crushed pieces can be crushed to a size that can eliminate the crushing.

The fragments from the crusher 40 are crushed by a crusher 40 '. As the crusher 40 ', there is a two-shaft type shearing type as shown in FIG. 7, and a rotary crushing blade for biting crushed pieces of a certain size from the top to the bottom in a pair of right and left in a casing 45. 46A and the corresponding protruding blade 47A of the mating shaft and the longitudinal fixed blade 48B forming the screen 48 are cut into small pieces by the screen 49,
For example, a small piece of about 3 cm square or less suitable for storing in the silo 50 or forming the solid material SM is obtained. Crusher 4
As 0 ', a uniaxial cutter type is used in addition to the biaxial shear type shown in the illustrated example.

A plurality of rotary crushing blades and fixed blades are alternately arranged in a working chamber inside the casing below the hopper, and the crushed material is shredded between them. At the bottom, a screen composed of a plurality of longitudinal fixed blade members forming a finer grid and spaced apart in the width direction of the transverse support plate is attached, and fragments having a desired size are obtained by the screen. The rotary crushing blade is mounted on a rotating shaft supported by a bearing at the center of the fixed blade, with the phase sequentially shifted in the rotation direction. A short fixed blade is also provided on the edge side of the rotary crushing blade.

In addition, as the crusher 40 ', there is a biaxial or uniaxial rotary press crusher, and a plurality of longitudinally fixed blades and a tapered crushing screw portion or a straight crushing screw portion on the inner surface of the casing. Can be crushed between the ring-shaped fixed blades between the section and the straight section.

The crushed pieces are temporarily stored in a silo 50 equipped with a metering machine. The silo 50 is provided with a rotary spiral blade for preventing a bridging phenomenon inside. Also,
Container 5 containing non-permeable binder B mainly composed of clay
And a tank 6 containing a chelating agent K. In addition, containers containing waste lime, cement, and asphalt and containers containing incinerated ash are appropriately prepared. Screw-type metering machine 3 from these silos 50, containers 5 and 6
, And a predetermined amount of the chelating agent K is supplied from the tank 6 to the stirring mixer 60 via the valve and the pipe. As the stirring mixer 60,
Conventional mixers and kneaders are used. The stirred and mixed product W6 is sent to the solidification molding machine 70.

As clay, bentonite (SiO2 and Al2O
3) clay, industrial waste clay (produced by washing when sand is made from mountains), clay-like sludge (produced by washing a ready-mixed concrete mixer truck), inorganic mud (mainly used in foundation work for construction and civil engineering) Out). As chelating agent K,
An aqueous solution containing sodium dithiocarbamate as a main component against harmful lead is used, and the pH is adjusted to 8.8 to 9.8 to be alkaline. As the binder B, clay and cement are used whether the material to be treated is organic or inorganic, but asphalt is used only for inorganic material. Clay is
It forms a slow-setting solid, which is convenient for crushing in landfills.

As shown in FIGS. 8 and 9, the solidifying molding machine 70 inserts the light-weight articles W4, W7, and W7 'containing the plastic injected from the inlet 71A at one end into the outlet 71B at the other end. Crushing, kneading, compressing and crushing are performed while being transported in the longitudinal direction, and the temperature is raised by the heat generated by friction and compression, and the plastic is melted. A pair of rotating shafts 70S, 70S that are driven to rotate, and spiral bodies 72A, 72B and pressing bodies 73A attached to each of them.
73B and a wear-resistant lining member 7 detachably provided in the casing 71 with a predetermined gap therebetween.
1C and a perforated plate 75 with a nozzle for solidification at the take-out port 71B. The squeezed body constitutes a mortar-shaped squeezed part 73 that particularly promotes pulverization and dissolution. As the solidifying molding machine 70, a molding machine having a tapered portion on the outlet side using a uniaxial screw is also used. By this solidifying molding machine 70, a solid SM having good shape retention and not allowing water to pass can be obtained.

[0026]

As is apparent from the above description, according to the pretreatment method for landfill objects according to claim 1 of the present invention,
It is characterized in that the object to be treated, mainly waste to be landfilled, is stirred and mixed with a non-permeable binder such as clay, clay-like sludge, inorganic mud, cement, etc. in a mixer, and then formed into a solid in a molding machine. Because it is, only putrefactive organic substances and flammable organic substances, only inorganic substances, or even if they are mixed, they are mixed with a non-permeable binder such as clay or clay-like sludge, inorganic mud, cement, It is formed into a solid which is impermeable to water and insoluble in water.

[0027] Therefore, it is possible to prevent a large amount of flies from being spoiled by spoilage, and to prevent the generation of foul odors by rats, crows, wild dogs and the like, and to prevent the generation of odors by combustible waste such as plastics, papers and sheets. It can prevent scattering and fire occurrence,
It can reduce the drainage load (chemical treatment etc.) on the treated land and is useful for safety, life extension and ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above. In addition, the solid material is slow-curing and is flattened when crushed by a burtosa or the like in a landfill, which is advantageous in extending the life of the landfill.

According to the pretreatment method of the landfill object according to the second aspect, inorganic substances such as incinerated ash and fly ash (fly ash) and / or combustible waste such as plastic, paper and wood to be landfilled are treated. Because it is characterized in that the object to be treated is stirred and mixed with a non-permeable binder such as asphalt, clay, clay-like sludge, inorganic mud, cement, etc. in a mixer, and then formed into a solid in a molding machine, By using recycled asphalt generated from a large amount of asphalt, it is possible to ferment or decompose decayable organic substances such as garbage, fruits, vegetables, etc. depending on the temperature. A solid that is impermeable to water can be formed as a stable binder for the object to be processed.

Therefore, even if heavy metals are contained in the material to be treated, elution by water can be prevented, and flammable wastes such as plastics, paper and sheets of building materials are scattered by wind and fires are generated. Can be prevented, the drainage load (chemical treatment and sedimentation treatment, etc.) at the treatment site can be reduced, and safety and life can be extended.
Useful for ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above.

According to the pretreatment method of the landfill object according to the third aspect, the inorganic object to be processed containing a heavy metal is stirred and mixed with the impermeable binder containing a chelating agent.
Even if a heavy metal, for example, lead is mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a chelate compound insoluble in water. The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be kept to a minimum. The impermeable solid material with good shape retention obtained by using the impermeable binder prevents lead elution even when poured into water for landfill, and can be handled almost as well as the stable type. Will be possible.

According to the pretreatment method of the landfilling object according to the fourth aspect, the object to be processed packed in a bag or a container is sent to a bag breaking machine from a fixed-rate supply machine, and is sent from a bag breaking machine to a belt conveyor. The valuables such as magnetic substances, non-ferrous metals, cullet, etc. are sorted and removed from the workpieces supplied to the workpiece, and then the sediment is sorted and removed by a sieve such as a rotating sieve or a rotating roll. The processed material is crushed by a crusher, the processed material fragments are stored in a silo with a quantitative feeder, and the binder and the processed material fragments are respectively quantitatively supplied to a mixer and then mixed and stirred by a molding machine. It is solidified.

The objects to be processed packed in bags or containers are also automatically supplied to the belt conveyor by the bag breaking machine, and the valuables are sorted and removed, so that the resources can be recovered and the subsequent processing equipment can be prevented from being worn. In addition, the sediment is sorted out and removed by the sieve sorting, so that the subsequent processing equipment can be prevented from being worn. The solidification molding machine can be continuously operated by storing the fragments to be treated crushed by the crusher in a silo, and the component can be appropriately adjusted by the quantitative feeder.

According to the pretreatment method of the landfill object of the present invention, the inorganic object to be processed containing heavy metals is removed of magnetic substances such as iron by a magnetic separator and aluminum is removed by an aluminum separator. Then, a sorting block formed by arranging rotating rotors in which a plurality of large and small rings are alternately arranged in the axial direction so as to form sieves between the rings of adjacent rotors in the longitudinal direction of a frame in which a plurality of rotating rotors are arranged. The magnetic separator can select the ferrous metal with magnetism by the magnetic separator so that it can be separated into the passing-through material and the conveyed medium-sized material by the rotor separator. Wear can be prevented, and aluminum resources that consume a large amount of power during manufacturing can be recovered by an aluminum sorter.

Next, even if the mixed material supplied from the upper side at one end is wet or wet, the rotor separator is efficiently stirred without being clogged by the rotation of the plurality of rotors. Non-repulsive lightweight materials that are overwhelmingly flammable organic materials and medium-sized and repulsive heavy materials that are overwhelmingly incombustible inorganic materials, and large-diameter rings and small diameters that are alternately arranged in the axial direction of adjacent rotating rotors It can be classified into two types, that is, powder particles and earth and sand that fall from the sieve spacing formed by the ring body and each other. Therefore, it is possible to easily perform the secondary sorting operation and the sorting and pulverizing operation for repulsive heavy objects, and to prevent the subsequent processing equipment from being worn by removing the earth and sand.

[Brief description of the drawings]

FIG. 1 is a flowchart of a representative embodiment of a pretreatment method of a landfill object according to the present invention.

FIG. 2 is a longitudinal sectional view of a bag breaking machine used in the pretreatment method.

FIG. 3 is a side view of an aluminum sorter used in the pretreatment method.

FIG. 4 is a side view of a rotor separator used in the pretreatment method.

FIG. 5 is a plan view of a main part of a sorting block of the rotor separator.

FIG. 6 is a plan view of a screw crusher as a crusher used in the pretreatment method.

FIG. 7 is a longitudinal sectional view of a cutter type crusher as a crusher used in the pretreatment method.

FIG. 8 is a sectional view of a solidification molding machine used in the pretreatment method.

FIG. 9 is a horizontal sectional view of the solidification molding machine.

[Explanation of symbols]

 Reference Signs List 3 Constant feeder 10 Bag breaking machine 15A Naginata-shaped bag breaking blade 15 Rotating rotor 20 Aluminum sorting machine 20 Magnetic sorting machine 30 Sieve sorting machine (rotor separator) 31 Rotor 31A Large meridian ring 31B Small meridian ring 40 Crushing machine 40 ' Crusher 50 Silo 60 Mixer 70 Forming machine AL Aluminum B Non-permeable binder K Chelating agent MM Magnetic material N Unsuitable material SM Solid material V Valuable material W6 Fragment-shaped object W0 Object

Claims (5)

[Claims] 1. An object to be treated, mainly a waste to be landfilled, is stirred and mixed with a non-permeable binder such as clay, clay-like sludge and inorganic mud in a mixer, and then formed into a solid in a molding machine. A method for pretreating an object to be landfilled. 2. Inorganic substances such as incinerated ash and fly ash (fly ash) to be landfilled and / or plastic, paper,
It is characterized in that the combustible waste such as wood is stirred and mixed with a non-permeable binder such as asphalt, clay, clay-like sludge and inorganic mud in a mixer, and then formed into a solid in a molding machine. Pretreatment method for landfill objects. 3. The object to be treated with the inorganic substance containing a heavy metal,
The pretreatment method according to claim 1, wherein the pretreatment method is stirred and mixed with the impermeable binder containing a chelating agent. 4. The object to be bagged is sent from a fixed-rate feeding machine to a bag breaking machine, and the object to be fed from the bag breaking machine onto a belt conveyor is a valuable material such as a magnetic material, non-ferrous iron, cullet, or the like. The material is sorted and removed, and then the sediment is sorted and removed by a sieve sorter such as a rotating sieve or a rotating roll, and the remaining medium and large object is crushed by a crusher. ,
The pretreatment method according to claim 1, wherein the binder and the shards to be treated are stored in a silo equipped with a fixed amount feeder, and the binder and the shard-like workpiece are respectively fixedly supplied to a mixer and mixed by stirring, and then solidified by a molding machine. 5. The object to be treated with the inorganic substance containing a heavy metal,
Magnetic substances such as iron are removed by a magnetic force sorter, aluminum is removed by an aluminum sorter, and then a rotating rotor in which a plurality of large and small wheels are alternately arranged in the axial direction is connected to the adjacent rotor in the longitudinal direction of a plurality of frames. 4. The pre-treatment method according to claim 3, wherein the material is separated into the passing-through material and the conveyed medium and large-sized material by a rotor separator having a sorting block arranged so as to form a mesh between the rings.