JP2001276818A - On-vehicle type contaminated soil effluent treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle type contaminated soil effluent treating device which can make contaminated soil effluent uncontaminated by efficiently treating the contaminated soil effluent taken out of a cathode side of electrode pairs inserted into the contaminated soil with a treating means of an on-vehicle type rich mobility. SOLUTION: The electrode pairs 21 and 22 are inserted into the soil 40 contaminated by compounds of heavy metals and the contaminated water sucked by a vacuum pump 25 from the cathode 21 is introduced via a storage tank 21 into a mixing tank 30 where the contaminants are adsorbed away by the adsorbents supplied from a hopper 28. The cleaned water is returned to a chelate introducing section 38. The contaminated adsorbents are heat treated in a kiln 3 after drying.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detoxifying soil contaminated with compounds such as heavy metals, and more particularly to a vehicle-mounted contaminated soil discharge water treatment mounted on a trailer truck to enhance mobility. Related to the device.

[0002]

2. Description of the Related Art Conventionally, as a means for improving soil contaminated with compounds such as heavy metals, an electrode pair is inserted into contaminated soil, and discharged water containing contaminants collected on the cathode side thereof is used.
Means for extracting contaminated soil discharged water have been developed, but technology development for efficiently and continuously treating the whole process for detoxification is awaited.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for efficiently treating contaminated soil discharged water taken out from a cathode side of an electrode pair inserted into contaminated soil by a mobile type processing means having high mobility. It is an object of the present invention to provide a vehicle-mounted contaminated soil discharge water treatment device that can be used.

[0004]

In order to solve the above-mentioned problems, an on-vehicle type contaminated soil discharge water treatment apparatus according to the present invention is provided in a contaminated soil discharge water treatment apparatus mounted on a trailer pulled by a tractor through a joint. The contaminated water tank for storing the contaminated water discharged from the water-permeable pipe-shaped cathode of the electrode pair inserted into the contaminated soil, the hopper for receiving the particulate adsorbent, and the adsorbent supplied from the hopper A mixing tank for mixing the contaminated water to adsorb contaminants in the contaminated water, a drain pump for sucking and discharging purified treated water via the mixing tank, and the adsorbent removes the contaminants in the mixing tank. It is characterized in that it is equipped with a drying means for the contaminated adsorbent generated by adsorption and a transport means for carrying the contaminated adsorbent after drying to a waste treatment device as waste.

[0005] In the vehicle-mounted contaminated soil discharge water treatment apparatus of the present invention, the conveying means includes a conveyor for receiving the contaminated adsorbent from the lower opening and closing port of the mixing tank and conveying the contaminated adsorbent horizontally. The drying means is configured as a heater mounted on the surrounding wall of the conveyor, and an exhaust fan for suctioning and discharging water vapor generated from the contaminated adsorbent heated by the heater is provided.

Further, the on-vehicle type contaminated soil discharge water treatment apparatus of the present invention comprises a bucket conveyor with an enclosed wall for lifting the contaminant adsorbent discharged from the conveyor at the end of the conveyor, and an upper end of the bucket conveyor. And a chute having a closed structure for receiving the contaminated adsorbent from a discharge section and transferring the contaminated adsorbent to the waste disposal apparatus.

Further, in the vehicle-mounted contaminated soil discharge water treatment apparatus of the present invention, the waste treatment apparatus is mounted on the trailer, and the waste treatment apparatus is connected to a plurality of waste supply units connected to the transport means. Hopper, a push-in feeder that receives the supply of waste from the hopper, a slender inclined rotary kiln that thermally decomposes the waste pushed in by the feeder, a rotating means of the rotary kiln, and an outer periphery of the rotary kiln. A heater that heats in a rotary kiln; an exhaust blower that sucks and discharges gas generated by thermal decomposition of waste in the rotary kiln from the rotary kiln through a filter to make the inside of the rotary kiln a reduced pressure state with a low oxygen content; Multiple cooling systems that collect the ash generated from the treatment from the rotary kiln, cool it, and discharge it A first switching valve for sequentially and continuously supplying waste from the plurality of waste supply hoppers to the push-in feeder, and a plurality of cooling type captures from the rotary kiln; A second switching valve for sequentially and continuously sending ash to the collecting hopper is provided, and the heating function of the heater sets the temperature distribution inside the rotary kiln to the highest temperature in the center of the rotary kiln; Is set to be lower at both ends.

In the above-described on-vehicle type contaminated soil discharge water treatment apparatus of the present invention, the contaminated water containing contaminants such as heavy metals collected on the cathode side of the electrode pair inserted into the contaminated soil is treated by the adsorbent. Of the purification equipment is mounted on a trailer that is towed by a tractor, so it is possible to dispatch the purification equipment to the site at a time when the contaminated water is sufficiently collected. Thus, the operation rate of the device can be increased.

[0009] The contaminated water guided from the tank storing the contaminated water to the mixing tank is efficiently adsorbed and removed by the particulate adsorbent in the tank. The purified treated water is separated and discharged by a drain pump. Since the contaminant adsorbent that has adsorbed the contaminants is sufficiently dried by the drying means, a steam explosion or the like occurs in a waste treatment device that receives the contaminant adsorbent as waste through the transport means and heats it. It can be safely and efficiently processed and made harmless.

[0010] The conveying means for sending the contaminated adsorbent discharged from the mixing tank to the waste disposal apparatus is provided with a conveyor for receiving the contaminated adsorbent from the lower opening of the mixing tank and conveying the contaminated adsorbent in the horizontal direction. If a heater as a drying means is provided on the surrounding wall of the conveyor, the contaminant adsorbent is efficiently dried in the process of being conveyed to the waste treatment apparatus, and water vapor generated by the drying is exhausted. Since it is forcibly discharged by the fan,
The drying of the contaminant adsorbent is performed more efficiently, and the safety of the contaminant adsorbent against steam explosion during the heat treatment of the contaminant adsorbent in the waste treatment apparatus can be sufficiently improved.

The contaminant adsorbent discharged from the conveyor at the end of the conveyor is lifted upward by a bucket conveyor in the surrounding wall, and further carried into the waste disposal apparatus through a sealed chute. Therefore, the pollution adsorbent is not scattered to the outside as dust, and air pollution can be sufficiently prevented. Further, when the waste treatment apparatus is mounted on a vehicle equipped with the mixing tank and the like on a trailer towed by a tractor, when the contaminated water is sufficiently stored at the site, the contaminated water purification means is used together with the contaminated water purification means. Since the waste disposal apparatus can be transferred to the site and the waste disposal operation can be performed while the apparatus is mounted on a trailer, there is an advantage that the operation efficiency of the equipment is further improved.

[0012] In the above-mentioned waste treatment apparatus, the inside of the rotary kiln is heated to the highest temperature at the center of the rotary kiln by a heater surrounding the outer periphery of the rotary kiln and heated by an exhaust blower connected to the rotary kiln. Since the inside of the rotary kiln is depressurized and has a low oxygen content, the waste pushed into the rotary kiln from the waste supply hopper through the push-in feeder is rotated by the rotary means. In conjunction with this, the thermal decomposition treatment is performed efficiently.

A plurality of the waste supply hoppers are provided, and the wastes are sequentially and continuously supplied from each hopper into the rotary kiln via the first switching valve and the push-in feeder. As the ash generated by the pyrolysis of waste in the rotary kiln is continuously discharged from the rotary kiln to the plurality of cooling collection hoppers through the second switching valve in sequence, the internal temperature of the rotary kiln is controlled as described above. Combined with the highest temperature in the central part of the kiln by the heater, the waste is rolled down while receiving appropriate high-temperature treatment in a slender cylindrical inclined rotary kiln, and is continuously pyrolyzed efficiently. Will be given.

The gas generated by subjecting the waste to thermal decomposition in the rotary kiln as described above is suctioned and discharged by the exhaust blower through a filter.
On the other hand, the ash generated by the thermal decomposition treatment of the waste is cooled by a cooling type collection hopper and discharged.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention; FIG.
FIG. 1 is a side view showing a state in which contaminated water treatment means is mounted on a trailer truck, and FIG. 2 is a side view showing a state where waste treatment is performed on a trailer truck of FIG. 1. It is a side view which shows the state which is carrying out the purification | cleaning operation of the contaminated soil by connecting the apparatus mounting vehicle, FIG.3 and FIG.4 shows the vehicle-mounted contaminated soil discharge water treatment apparatus as 2nd Embodiment of this invention. FIG. 3 is a side view showing a state in which the contaminated water treatment means and the waste treatment device are mounted on the same trailer truck, and FIG. 4 is performing purification work on contaminated soil using the trailer truck of FIG. It is a side view showing a state.

First, a first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, a water-permeable pipe-shaped anode 21 and a cathode 22 are passed through a soil 40 contaminated with a compound such as a heavy metal.
And an electrode pair consisting of AC / DC
Converter 23 is connected. A pipe 24 is connected to the anode 21.
Chelating water is introduced, and penetrates into the contaminated soil through a number of small holes in the pipe wall of the anode 21, and ionized heavy metals enter the pipe through a number of small holes in the pipe wall of the cathode 22. Become infiltrated.
Thus, contaminated water is stored in the pipe.

On the other hand, a trailer truck T ₁ having a trailer B connected to a tractor A via a detachable joint J is parked near the contaminated soil 40, and the trailer B has a cathode 22 pipe. A vacuum pump 25 with a motor 25a capable of sucking contaminated water therein via a pipe 26, and a contaminated water tank 41 for receiving and storing the contaminated water via the pump are mounted.

Further, a contaminated water tank is provided on the trailer B.
Mixing tank 30 from which contaminated water is guided from 41 via valve 41a
Is mounted, and a valve is provided above the tank 30 to the tank 30
A hopper 28 capable of supplying an adsorbent via 28a is provided.

The treated water, in which the contaminants are adsorbed and purified by the adsorbent in the mixing tank 30, is supplied to a pump 31 having a motor 31a.
And is returned to the chelating water introduction section 38 through the pipe 37.

The contaminant adsorbent, which has adsorbed contaminants in the mixing tank 30, drops into the conveyor enclosure 33 by opening the lower valve 30a of the tank 30. A screw conveyor 32 rotated and driven by a motor 32a is horizontally disposed, and a bucket conveyor 35 with a surrounding wall for receiving the contaminant adsorbent transported by the conveyor 32 and lifting it upward is provided at the end of the screw conveyor 32. It is erected. The rotation of the conveyor 35 is performed by the rotation drive unit 34.

A heater 32h for drying the contaminant adsorbent is provided on the surrounding wall 33 of the screw conveyor 32, and a duct for sucking and discharging water vapor is provided at the end of the surrounding wall 33.
The duct 39a is connected and extends upward along the surrounding wall of the bucket conveyor 35, and an exhaust fan 39 is provided at an upper end outlet of the duct 39a. A chute 36 having a closed structure is provided for receiving the contaminant adsorbent from the upper end discharge portion of the bucket conveyor 35 and carrying it into the hopper 1 of the waste disposal apparatus.

[0022] In this embodiment, waste treatment apparatus is mounted on a 'trailer B is towed through a removable joint J in' tractor A in trailer truck T _2, the apparatus is configured as follows ing. That is,
A plurality of waste supply hoppers 1 and 1 are arranged side by side so as to have an airtight opening / closing lid 1a, and a nitrogen gas generator 2 is connected to each hopper 1.

A slender cylindrical inclined rotary kiln 3 for thermally decomposing the waste is provided, and both ends of the rotary kiln 3 are provided with fixed gas receiving seals 4 and 5 respectively in fixed receiving portions 4 and 5. It is rotatably supported via a hermetically sealed bearing portion 6 provided with a seal. The rotation of the rotary kiln 3 is performed by a motor 7 via a gear 8.

Further, a heater 9 which surrounds the outer periphery of the rotary kiln 3 and can be heated to about 600 ° C. is provided, and in combination with the electric or gas combustion type heating function of the heater 9, the rotary kiln 3 Make up. The heating function of the heater 9 is set such that the temperature distribution inside the elongated rotary kiln 3 is highest at the center of the rotary kiln 3 and lower at both ends of the rotary kiln 3.

The supply of waste from the hopper 1 to the upper end of the rotary kiln 3 inclined up and down is performed by a first switching valve 10.
And push-in feeder (screw feeder) 11
The operation of the push-in feeder 11 is performed by a motor 12.

The switching control of the first switching valve 10 is performed by a controller (not shown) so that the waste can be sequentially and continuously supplied from the plurality of waste supply hoppers 1 to the push-in feeder 11. Has become.

That is, two waste supply hoppers 1, 1
When the waste is supplied from one hopper 1 to the push-in feeder 11 via the first switching valve 10, the other hopper 1 is operated to fill the waste. The push-in feeder 11 and, consequently, the rotary kiln 3 are operated by the switching operation of the first switching valve 10.
The waste supply to the plant is performed continuously without interruption.

The gas discharged from the end of the rotary kiln 3 is sucked by an exhaust blower 14 through a water-cooled gas-cooled trap 12 and a filter 13 and discharged from a chimney 16 through an off-gas processing system 15. Has become.

Further, ash as solid matter discharged from the lower end of the rotary kiln 3 is sequentially and continuously sent out to a plurality of cooling type collection hoppers 17 through a second switching valve 10a controlled by a controller (not shown). It is supposed to be.

That is, the two water-cooled collection hoppers 17, 17
Is provided, the ash is discharged from the other hopper 17 while the ash is being delivered to the one hopper 17 via the second switching valve 10a, so that the second switching valve 10a By this switching operation, the ash is continuously and continuously delivered from the lower end of the rotary kiln 3 without interruption.
Reference numeral 18 denotes a power supply input terminal.

Next, a description will be given of an on-board type contaminated soil discharge water treatment apparatus as a second embodiment of the present invention. As shown in FIGS. 3 and 4, this embodiment also contaminates with a compound such as heavy metal. An electrode pair consisting of a water-permeable pipe-shaped anode 21 and cathode 22 is inserted into the soil 40, and AC is inserted between both electrodes.
/ DC converter 23 is connected.

Then, chelating water is introduced into the anode 21 through a pipe 24 so as to penetrate into the contaminated soil through a number of small holes in the pipe wall of the anode 21, and the ionized heavy metals are supplied to the cathode 22. It will penetrate into the pipe through a number of small holes in the pipe wall. Thus, contaminated water is stored in the pipe.

In a trailer truck T parked near the contaminated soil 40, a tractor A joins a joint J.
A vacuum pump 25 with a motor 25a capable of sucking the contaminated water in the pipe of the cathode 22 through a pipe 26 on the trailer B pulled through the same as in the first embodiment, A contaminated water tank 41 for receiving and storing contaminated water is mounted.

Further, on the trailer B, there is a contaminated water tank.
Mixing tank 30 from which contaminated water is guided from 41 via valve 41a
Is mounted, and a valve is provided above the tank 30 to the tank 30
A hopper 28 capable of supplying an adsorbent via 28a is provided.

In the second embodiment, on the same trailer B, a waste treatment apparatus for receiving and treating the contaminated adsorbent as waste from the chute 36 is mounted, and the apparatus is configured as follows. ing. That is, a plurality of waste supply hoppers 1 and 1 are arranged side by side so as to have an airtight opening / closing lid 1a, and a nitrogen gas generator 2 is connected to each hopper 1.

Further, a slender cylindrical inclined rotary kiln 3 for thermally decomposing waste is installed, and both ends of the rotary kiln 3 are provided with nitrogen gas press-fit type airtight seals in fixed receiving portions 4 and 5, respectively. It is rotatably supported via a hermetically sealed bearing portion 6 provided with a seal. The rotation of the rotary kiln 3 is performed by a motor 7 via a gear 8.

Further, a heater 9 which surrounds the outer periphery of the rotary kiln 3 and can be heated to about 600 ° C. is provided, and in combination with the electric or gas combustion type heating function of the heater 9, the rotary kiln 3 Make up. The heating function of the heater 9 is set such that the temperature distribution inside the elongated rotary kiln 3 is highest at the center of the rotary kiln 3 and lower at both ends of the rotary kiln 3.

The supply of waste from the hopper 1 to the upper end of the rotary kiln 3 inclined up and down is performed by a first switching valve 10.
And push-in feeder (screw feeder) 11
The operation of the push-in feeder 11 is performed by a motor 12.

The switching control of the first switching valve 10 is performed by a controller (not shown) so that the waste can be sequentially and continuously supplied from the plurality of waste supply hoppers 1 to the push-in feeder 11. Has become.

That is, the two waste supply hoppers 1, 1
When the waste is supplied from one hopper 1 to the push-in feeder 11 via the first switching valve 10, the other hopper 1 is operated to fill the waste. The push-in feeder 11 and, consequently, the rotary kiln 3 are operated by the switching operation of the first switching valve 10.
The waste supply to the plant is performed continuously without interruption.

The gas discharged from the end of the rotary kiln 3 is sucked by an exhaust blower 14 through a water-cooled gas-cooled trap 12 and a filter 13 and discharged from a chimney 16 through an off-gas processing system 15. Has become.

Further, the ash as a solid discharged from the lower end of the rotary kiln 3 is sequentially and continuously sent out to a plurality of cooling type collecting hoppers 17 through a second switching valve 10a controlled by a controller (not shown). It is supposed to be.

That is, the two water-cooled collection hoppers 17, 17
Is provided, the ash is discharged from the other hopper 17 while the ash is being delivered to the one hopper 17 via the second switching valve 10a, so that the second switching valve 10a As a result, the ash is continuously and continuously fed out from the lower end of the rotary kiln 3. Reference numeral 18 denotes a power supply input terminal.

According to the on-vehicle type contaminated soil discharge water treatment apparatus of each of the above-described embodiments, contaminated water containing contaminants such as heavy metals collected on the cathode side 21 of the electrode pair inserted into the contaminated soil 40 is adsorbed. Purification equipment for treating with tractor A
The vehicle is mounted on a trailer B that is towed by the company, so that the contaminated water can be sent to the site at a time when the contaminated water is sufficiently collected, Rate can be increased.

The contaminated water guided from the tank 41 storing the contaminated water to the mixing tank 30 is efficiently adsorbed and removed by the particulate adsorbent in the tank 30. The treated water thus purified is separated by the drain pump 31 and discharged. Since the contaminant adsorbent that has adsorbed the contaminants is sufficiently dried by the drying means, in a waste treatment apparatus that receives the contaminant adsorbent as waste and conveys it through the transporting means and heats it,
Safe and efficient treatment and detoxification without causing steam explosion and the like.

The conveying means for sending the contaminant adsorbent discharged from the mixing tank 30 to the waste treatment apparatus is provided by the mixing tank.
30 is provided with a conveyor 32 which receives the contaminant adsorbent from the lower opening and conveys the adsorbent in the horizontal direction.
If the heater 32h is provided as a drying means in 33, the contaminant adsorbent will be efficiently dried in the process of being conveyed to the waste treatment apparatus, and the steam generated by the drying will be exhausted by the exhaust fan 39. Since the contaminated adsorbent is forcibly sucked and discharged, drying of the contaminated adsorbent is performed more efficiently, and the safety against steam explosion during the heat treatment of the contaminated adsorbent in the waste disposal device is sufficiently improved. .

At the end of the conveyor 32, the contaminant adsorbent discharged from the conveyor is lifted upward by a bucket conveyor in the surrounding wall, and further carried into the waste disposal apparatus through a sealed chute. Therefore, the pollution adsorbent is not scattered to the outside as dust, and air pollution can be sufficiently prevented.

Further, the above-mentioned waste disposal apparatus is shown in FIGS.
As shown in the second embodiment, the vehicle is mounted on a trailer towed by a tractor together with the mixing tank 30 and the like, so that when the contaminated water is sufficiently stored on site, the contaminated water purification means is used. Since the waste disposal apparatus can be transferred to the site and the waste disposal operation can be performed while the apparatus is mounted on a trailer, there is an advantage that the operation efficiency of the equipment is further improved.

Further, in the above-mentioned waste treatment apparatus, the inside of the rotary kiln 3 is brought to the highest temperature at the center of the rotary kiln 3 by the heater 9 surrounding and heating the rotary kiln 3 and connected to the rotary kiln 3. Since the inside of the rotary kiln 3 is decompressed by the exhaust blower 14 and has a low oxygen content,
The waste pushed into the rotary kiln 3 from the waste supply hopper 1 via the push-in feeder 11 is efficiently subjected to a thermal decomposition process in conjunction with the rotary kiln 3 being driven to rotate by the rotating means.

A plurality of waste supply hoppers 1 are provided, and waste is supplied from each hopper to the rotary kiln 3 sequentially and continuously via the first switching valve 10 and the push-in feeder 11. At the same time, the ash generated by the thermal decomposition treatment of the waste in the rotary kiln 3 is sequentially and continuously performed from the rotary kiln 3 to the plurality of cooling collection hoppers 17 via the second switching valve 10a. In addition to the fact that the internal temperature of the waste is set to the highest temperature in the central part of the kiln by the heater 9, the waste rolls and descends while being appropriately subjected to high-temperature treatment in the elongated cylindrical inclined rotary kiln 3, and continuously. Is efficiently subjected to thermal decomposition.

The gas generated by subjecting the waste to thermal decomposition in the rotary kiln 3 is sucked and discharged by the exhaust blower 14 through the filter 13. On the other hand, the ash generated by the thermal decomposition treatment of the waste is cooled by the cooling collection hopper 17 and discharged.

[0052]

As described in detail above, according to the continuous waste disposal apparatus of the present invention, the following effects can be obtained. (1) A purification device for treating contaminated water containing contaminants such as heavy metals collected on the cathode side of the electrode pair inserted into the contaminated soil with an adsorbent was mounted on a trailer pulled by a tractor Since it is of the on-vehicle type, the purifying device can be dispatched to the site at an appropriate time when the contaminated water has been sufficiently collected, and the operation rate of the device can be increased. Then, the contaminated water led from the tank storing the contaminated water to the mixing tank is efficiently adsorbed and removed by the particulate adsorbent in the tank, and thus purified. The treated water is separated and discharged by a drain pump. Since the contaminant adsorbent that has adsorbed the contaminants is sufficiently dried by the drying means, a steam explosion or the like occurs in a waste treatment device that receives the contaminant adsorbent as waste through the transport means and heats it. It can be safely and efficiently processed and made harmless. (2) Conveying means for sending the contaminated adsorbent discharged from the mixing tank to a waste treatment device is provided with a conveyor for receiving the contaminated adsorbent from the lower opening of the mixing tank and conveying the contaminated adsorbent in the horizontal direction. If a heater as a drying means is provided on the surrounding wall of the conveyor, the contaminated adsorbent will be efficiently dried in the process of being conveyed to the waste treatment apparatus, and the steam generated by the drying will be exhausted by the exhaust fan. Since the contaminated adsorbent is forcibly sucked and discharged, the contaminated adsorbent is more efficiently dried, and the safety of the contaminated adsorbent against steam explosion during the heat treatment of the contaminated adsorbent in the waste treatment apparatus is sufficiently improved. . (3) At the end of the conveyor, the contaminant adsorbent discharged from the conveyor is lifted upward by the bucket conveyor in the surrounding wall, and further carried into the waste disposal device via a sealed chute. Therefore, the pollution adsorbent is not scattered to the outside as dust, and air pollution can be sufficiently prevented. (4) If the waste treatment apparatus is of a vehicle type mounted on a trailer towed by a tractor, together with the mixing tank, etc., when contaminated water is sufficiently stored on site, the contaminated water purification means is used. At the same time, the waste treatment apparatus can be transferred to the site and the waste treatment operation can be performed while the apparatus is mounted on a trailer, so that the operation efficiency of the facility can be further improved. (5) In the waste treatment apparatus, the inside of the rotary kiln is heated to the highest temperature at the center of the rotary kiln by a heater that surrounds and heats the outer periphery of the rotary kiln. Since the inside is decompressed to be in a state of low oxygen content, the waste pushed into the rotary kiln from the waste supply hopper via the push-in feeder is coupled with the rotary kiln being rotationally driven by rotating means. The thermal decomposition treatment is performed efficiently. A plurality of the waste supply hoppers are provided, and waste is sequentially and continuously supplied from the respective hoppers into the rotary kiln via the first switching valve and the push-in feeder. The ash generated by the thermal decomposition of waste is discharged from the rotary kiln through the second switching valve to the plurality of cooling collection hoppers sequentially and continuously, so that the internal temperature of the rotary kiln is reduced by the heater. Combined with the highest temperature in the central part, the waste is rolled down while receiving appropriate high-temperature treatment in a slender cylindrical inclined rotary kiln, and is subjected to thermal decomposition treatment continuously and efficiently. Become so.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle equipped with a pollution adsorbent treatment means in a vehicle-mounted polluted soil discharge water treatment device as a first embodiment of the present invention.

FIG. 2 is a side view showing a state in which a vehicle equipped with a waste treatment apparatus is connected to the vehicle shown in FIG. 1 to perform an operation of purifying contaminated soil.

FIG. 3 is a side view of a vehicle equipped with both a pollution adsorbent treatment means and a waste treatment device in a vehicle-mounted polluted soil discharge water treatment device as a second embodiment of the present invention.

FIG. 4 is a side view showing a state in which a contaminated soil is being purified using the vehicle of FIG. 3;

[Explanation of symbols]

A, A 'tractor B, B' trailer J joint T, T _1, T ₂ trailer truck 1 waste feed hopper 1a airtight lid 2 nitrogen gas generator 3 a rotary kiln 4,5 fixed receiving 6 airtight bearing section 7 Motor 8 Gear 9 Heater 10 First switching valve 10a Second switching valve 11 Push-in feeder (screw feeder) 12 Water-cooled gas-cooled trap (harmful substance tank) 13 Filter 14 Exhaust blower 15 Off-gas treatment system 16 Chimney 17 Cooling type Collection hopper 18 Power supply input terminal 21 Anode 22 Cathode 23 AC / DC converter 24 Piping 25 Vacuum pump 26 Piping 25a Motor 26 Piping 28 Hopper 28a Valve 30 Mixing tank 30a Valve 31 Pump 31a Motor 32 Screw conveyor 32h Heater 33 Enclosure 34 Rotary drive 35 Bucket conveyor with enclosure 36 Chute 37 Piping 38 Key Rate water inlet 39 Exhaust fan 39a Duct 40 Contaminated soil 41 Contaminated water tank 41a Valve

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F27B 7/06 F27B 7/33 7/32 7/34 7/33 F27D 7/06 Z 7/34 13 / 00 A F27D 7/06 B09B 3/00 304K 13/00 F term (reference) 4D004 AA41 AA47 AB03 AC07 AC10 CA24 CA34 CA44 CA50 CB09 CB32 CB34 CB42 CB43 CB45 CC06 DA02 DA20 4D024 AA09 AB16 BA00 BB01 BC04 CA01 DA01 DB10 BA12 DA03 DA05 EA00 FA11 GA02 HA03 HA05 4K063 AA05 AA18 BA13 CA02 CA06 DA15 DA17 DA22 DA23 DA32 GA09

Claims (4)

[Claims] 1. A contaminated soil discharge water treatment device mounted on a trailer pulled by a tractor via a joint for storing contaminated water discharged from a water-permeable pipe-shaped cathode of an electrode pair inserted into contaminated soil. A contaminated water tank, a hopper for receiving the particulate adsorbent, a mixing tank for mixing the contaminated water with the adsorbent supplied from the hopper to adsorb contaminants in the contaminated water, and a mixing tank. A drain pump that sucks and discharges treated water that has been purified.
The mixing tank is provided with a drying unit for the contaminant adsorbent generated by the adsorbent adsorbing the contaminant, and a conveying unit for carrying the contaminated adsorbent after drying to a waste treatment device as waste. A vehicle-mounted contaminated soil discharge water treatment device. 2. The on-vehicle contaminated soil effluent treatment apparatus according to claim 1, wherein the conveying means includes a conveyor for receiving the contaminated adsorbent from a lower opening and closing port of the mixing tank and conveying the contaminated adsorbent in a horizontal direction. Wherein the drying means is configured as a heater mounted on the surrounding wall of the conveyor, and an exhaust fan for sucking and discharging water vapor generated from the contaminated adsorbent heated by the heater is provided. Vehicle-mounted contaminated soil discharge water treatment equipment. 3. A bucket conveyor with an enclosed wall, wherein the bucket adsorber discharges the contaminated adsorbent discharged from the conveyor at an end portion of the conveyor, and the bucket. An on-vehicle contaminated soil discharge water treatment apparatus, comprising: a chute having a closed structure for receiving the contaminant adsorbent from an upper end discharge part of the conveyor and transferring the contaminant adsorbent to the waste treatment apparatus. 4. The on-vehicle contaminated soil discharge water treatment apparatus according to claim 1, further comprising the waste treatment apparatus mounted on the trailer, wherein the waste treatment apparatus includes A plurality of waste supply hoppers connected to the means, a push-in feeder receiving waste supply from the hopper, a slender inclined rotary kiln for thermally decomposing the waste pushed in by the feeder, and a rotary kiln. Rotating means, a heater for surrounding and heating the outer periphery of the rotary kiln, and a gas generated by thermal decomposition of waste in the rotary kiln is suctioned and discharged from the rotary kiln through a filter to reduce the inside of the rotary kiln with a low oxygen content. The exhaust blower to be in a state, and the ash generated by the pyrolysis treatment are collected from the rotary kiln. A plurality of cooling collection hoppers for cooling and discharging are provided, and a first switching valve for sequentially and continuously supplying waste from the plurality of waste supply hoppers to the push-in feeder is provided, A second switching valve for sequentially and continuously sending ash from the rotary kiln to the plurality of cooling collection hoppers is provided, and the heating function of the heater changes the temperature distribution inside the rotary kiln, A contaminated soil discharge water treatment device mounted on a vehicle, wherein the temperature is set to be the highest in the central part and to be low at both ends of the rotary kiln.