WO2013008337A1 - Method for carbonization and device for carbonization of organic matter in soil - Google Patents

Method for carbonization and device for carbonization of organic matter in soil Download PDF

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Publication number
WO2013008337A1
WO2013008337A1 PCT/JP2011/066114 JP2011066114W WO2013008337A1 WO 2013008337 A1 WO2013008337 A1 WO 2013008337A1 JP 2011066114 W JP2011066114 W JP 2011066114W WO 2013008337 A1 WO2013008337 A1 WO 2013008337A1
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soil
superheated steam
organic
carbonization
organic matter
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PCT/JP2011/066114
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French (fr)
Japanese (ja)
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伊藤　智章
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株式会社ワンワールド
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Priority to JP2013523759A priority Critical patent/JP5784122B2/en
Priority to CN201180072197.4A priority patent/CN103796769B/en
Priority to PCT/JP2011/066114 priority patent/WO2013008337A1/en
Publication of WO2013008337A1 publication Critical patent/WO2013008337A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/06—Reclamation of contaminated soil thermally

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  • the present invention relates to a soil organic matter carbonization apparatus and a soil organic matter carbonization method that can carbonize organic matter in soil (organic waste such as waste plastics).
  • organic matter and “organic matter waste” are used in the meaning that does not include animal carcasses.
  • Organic industrial waste such as waste plastics is often buried and treated in the designated soil, but waste plastics buried in the soil are decomposed except for biodegradable plastics. There is almost nothing. It is preferable from an environmental viewpoint that such organic industrial wastes such as waste plastic products buried in the soil are converted into a natural form and returned to the soil.
  • a technique for carbonizing organic waste drying is performed by heating organic waste such as vegetable waste and sludge while stirring in a treatment tank in a reduced-pressure atmosphere to dry the waste until a predetermined moisture content is reached.
  • a waste treatment comprising: a treatment step; and a carbonization treatment step of further reducing the moisture content of the waste by supplying superheated steam into the treatment tank and then carbonizing and pyrolyzing the waste.
  • the method is known (see Patent Document 1).
  • Patent Document 1 is a technique in which waste is put into a treatment tank of a predetermined waste treatment system and the waste is dried and carbonized in the treatment tank. Embedded organic waste (waste plastics, etc.) cannot be treated in the embedded state.
  • the present invention has been made in view of such a technical background, and is an organic substance carbonization treatment apparatus in soil and an organic substance carbonization treatment in soil that can carbonize organic substances (such as waste plastic products) in the soil in an embedded state. It aims to provide a method.
  • the present invention provides the following means.
  • a boiler that generates water vapor
  • a superheated steam generator for generating superheated steam from the steam transferred from the boiler
  • a superheated steam supply unit for supplying superheated steam into the soil
  • An organic carbonization treatment apparatus in soil comprising: a supply pipe section that supplies superheated steam generated by the superheated steam generation apparatus to the superheated steam supply section.
  • the superheated steam supply unit includes a tube body in which a connection opening is provided on one end side in the lengthwise direction and a plurality of supply holes are provided in a side wall, and is connected to one end side of the tube body.
  • a cover body that can form an internal space with the upper surface of the soil to be treated and can suppress leakage of vaporized components existing in the internal space to the outside;
  • a condenser One end is connected to a connection hole provided in the cover body, the other end is connected to the condenser, and a recovery pipe that recovers vaporized components present in the internal space of the cover body to the condenser,
  • the soil organic carbonization apparatus according to any one of items 1 to 4, further comprising a recovery container for recovering the condensate condensed by the condenser.
  • the superheated steam supply unit includes a pipe body having a plurality of supply holes provided on a side wall, and disperses the superheated steam into the soil through the plurality of supply holes. Carbonization method.
  • the superheated steam supply unit is embedded in the soil to be treated during carbonization, and the superheated steam generated by the superheated steam generator is diffused into the soil via the superheated steam supply unit.
  • Organic matter in the soil can be carbonized.
  • superheated steam released from the superheated steam supply section into the soil can be freely diffused in the soil in all directions such as the vertical and horizontal directions, so that the organic matter in the soil to be treated can be carbonized sufficiently and efficiently. Can do.
  • the superheated steam supply section includes a tube body in which a connection opening is provided at one end side in the length direction and a plurality of supply holes are provided in a side wall, Since the supply pipe section is connected to the connection opening, the pipe body can be embedded simply by inserting it into the soil to be treated, and thus the superheated steam supply section can be embedded easily. There is an advantage that can be. Furthermore, since a plurality of supply holes are formed in the side wall of the tube body, the superheated steam can be efficiently diffused into the soil from the superheated steam supply section.
  • the high-temperature heating body since the high-temperature heating body is in a sheet form, the high-temperature heating body can be sufficiently brought into contact with the outer surface of the superheated steam supply section (the contact area can be increased), and the high-temperature heating body itself is Since the temperature can be increased to 800 ° C. or higher, the superheated steam at a higher temperature can be dissipated into the soil from the superheated steam supply unit, and the carbonization efficiency can be further improved.
  • a cover body that can form an internal space with the top surface of the soil to be treated and suppress leakage of vaporized components existing in the internal space, a condenser, and one end cover
  • the connection hole provided in the body is connected, the other end is connected to the condenser, the recovery pipe for recovering the vaporized components present in the internal space of the cover body to the container, and the condensate condensed by the condenser
  • Components water vapor, pyrolysis components from organic waste, oil, fatty acids, methane gas, water, etc.
  • organic wastes in the soil can be carbonized sufficiently and efficiently. As a result, volume reduction of the soil can be achieved.
  • the organic matter in the organic matter-containing water-containing soil can be carbonized efficiently and moisture can be removed (sprayed to the outside) to reduce the volume of the organic matter-containing water-containing soil. (Volume reduction) can be achieved.
  • the superheated steam generated by the superheated steam generator is supplied to the superheated steam supply section embedded in the soil to be treated, and the superheated steam is diffused into the soil from the superheated steam supply section. Since the superheated steam dissipated in the soil can freely diffuse in the soil in all directions, such as the vertical and horizontal directions, the organic matter in the soil (excluding animal carcasses) must be carbonized sufficiently and efficiently. Can do.
  • the superheated steam supply section includes a tube body having a plurality of supply holes provided in the side wall, the tube body can be embedded simply by piercing the soil to be treated.
  • the operation of embedding the superheated steam supply unit can be easily performed.
  • a plurality of supply holes are formed in the side wall of the tubular body, the superheated steam can be efficiently diffused into the soil from the plurality of supply holes.
  • organic wastes in soil (including one or more organic wastes selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP and wood) can be carbonized sufficiently and efficiently in an embedded state. As a result, volume reduction of the soil can be achieved.
  • the organic matter in the organic matter-containing water-containing soil can be carbonized efficiently and moisture can also be removed (sprayed to the outside), and the organic matter-containing water-containing soil can be reduced in volume. (Volume reduction) can be achieved.
  • FIG. 2 is a schematic plan view (a plan view showing an interconnected state of a supply main pipe 21, a branch flexible pipe 22, and a superheated steam supply unit 4) in which a cover body and a frame are deleted in FIG.
  • This soil organic carbonization device 1 carbonizes organic waste (organic waste such as plastic products, food, fishing nets, tires, electric wires, FRP, and wood) embedded in the soil in an embedded state. It is preferably used for carbonizing organic matter-containing water-containing soil (organic matter-containing sludge).
  • the “FRP” is an abbreviation for “fiber reinforced plastic product”.
  • the soil organic carbonization treatment apparatus 1 of the present invention includes a boiler 2, a superheated steam generator 3, a superheated steam supply unit 4, and a supply pipe unit 5.
  • the boiler 2 is a device that generates water vapor from water.
  • the steam generated by the boiler 2 is transferred to the superheated steam generator 3 through the communication pipe 31. That is, the boiler 2 and the superheated steam generator 3 are connected by a communication pipe 31 (see FIG. 1).
  • a communication pipe 31 see FIG. 1.
  • a once-through steam boiler etc. are mentioned.
  • the superheated steam generator 3 is a device that generates superheated steam from steam. That is, the superheated steam generator 3 generates superheated steam from the steam transferred from the boiler 2.
  • the superheated steam generator 3 is not particularly limited, and examples thereof include an induction superheated steam generator. Examples of the temperature of the superheated steam generated by the superheated steam generator 3 include 700 ° C., but are not particularly limited to such conditions.
  • the superheated steam supply unit 4 is composed of a pipe (pipe) in which a plurality of supply holes 4a are provided in a side wall.
  • a connection opening 4b is formed at one end (upper end) in the length direction of the superheated steam supply unit 4, and the other end (lower end) in the length direction is closed.
  • At least a part of the superheated steam supply unit 4 is embedded in the soil X to be treated during carbonization (see FIGS. 3 and 4).
  • the supply pipe section 5 includes a supply main pipe 21 and five branched flexible pipes 22 branched from one end of the supply main pipe 21.
  • the other end of the supply main pipe 21 is connected to the superheated steam generator 3, and each of the five branch flexible pipes 22 is connected to each of the connection openings 4 b at one end of the five superheated steam supply parts 4. ing. That is, one end of the supply pipe part 5 is connected to the superheated steam generator 3, and the other end of the supply pipe part 5 is connected to the superheated steam supply part 4.
  • the superheated steam generated by the superheated steam generator 3 can be supplied to the superheated steam supply section 4 through the supply pipe section 5.
  • the supply main pipe 21 is disposed in the inner space 40 of the cover body 11 through the insertion hole 11b of the cover body 11, and the distal end side is bent and extends along the horizontal direction (see FIG. 6).
  • the five branch flexible pipes 22 are branched and connected from a horizontal part (horizontal part in the cover) 21a of the supply main pipe 21, respectively.
  • the branch flexible tube 22 is not particularly limited, but a SUS (stainless steel) branch flexible tube is suitable.
  • the operation control panel 7 can instruct the start and stop of the operation of the boiler 2 and the superheated steam generator 3, and the temperature of the steam generated in the boiler 2, the pressure and temperature of the superheated steam generated in the superheated steam generator 3. Etc. can be controlled.
  • the superheated steam generator 3 In order to sufficiently carbonize organic wastes (waste plastics, food wastes, etc.) in the soil, it is preferable that the superheated steam generator 3 generates superheated steam at 150 ° C. or higher. In particular, it is particularly preferable to generate superheated steam at 160 ° C. to 1000 ° C. with the superheated steam generator 3 in order to sufficiently perform carbonization while suppressing energy costs.
  • a high-temperature heating body 6 is further provided.
  • the high-temperature heating body 6 is formed in a sheet shape, and the high-temperature heating body itself can be heated to 800 ° C. or higher. That is, the high-temperature heater 6 itself can be heated to a high temperature of 800 ° C. or higher by a power supply circuit (not shown).
  • Examples of the material of the high-temperature heating body 6 include Inconel (trade name) manufactured by Special Metals.
  • the high-temperature heating body 6 is wound around (covered) at least a part of the outer surface of the superheated steam supply unit 4 and used.
  • a cover body 11, a condenser 12, a recovery pipe 13, and a recovery container 14 are further provided.
  • the cover body 11 is stretched so as to form an internal space 40 between the top surface of the soil X to be treated (see FIG. 4). By stretching such a cover body 11 on the soil X to be treated, the internal space 40 on the upper surface of the soil X and the outside air are blocked.
  • the cover body 11 is normally in the form of a sheet, and the material thereof is not particularly limited, and examples thereof include synthetic resin and rubber.
  • 23 is an opening / closing part (entrance / exit part) provided on the cover body 11 for a person to enter and exit, and is configured to be freely opened and closed with a fastener.
  • reference numeral 24 in FIG. 1 and the like denotes a frame, which is used to stretch (suspend) the cover body 11 in a substantially dome shape.
  • the recovery pipe 13 can take in a vaporized component present in the internal space 40 of the cover body 11 and transfer it to the condenser 12. That is, the vaporized component existing in the internal space 40 of the cover body 11 enters the recovery pipe 13 through the connection hole 11 a of the cover body 11, passes through the recovery pipe 13, and enters the condenser 12. enter.
  • the connection hole 11a is preferably provided at the top (highest part) of the cover body 11 that is stretched.
  • the condenser 12 is a device that condenses the vaporized component into a liquid.
  • a water-cooling apparatus is employed.
  • the condenser 12 condenses the vaporized component (vaporized component existing in the internal space 40) transferred from the recovery pipe 13 into a liquid.
  • the collection container 14 is disposed below the condenser 12 and collects liquid (condensate) falling from the condenser 12.
  • a catalytic reactor 15 is disposed in the middle of the recovery pipe 13. This catalytic reactor 15 can remove chlorine, acid, etc., among the vaporized components in the recovery pipe 13.
  • the catalyst component used in the catalytic reactor 15 is not particularly limited, and examples thereof include iron oxide and sodium hydroxide.
  • the soil X containing organic waste is not particularly limited.
  • a final disposal site in which organic waste is buried for example, a final disposal site in various places such as a final disposal site on Yumenoshima in Tokyo). Etc.).
  • the superheated steam supply unit 4 is inserted and embedded in the soil X to be treated (see FIG. 4).
  • the cover body 11 is stretched so that an internal space 40 can be formed between the top surface of the soil X to be treated (see FIGS. 1 to 4).
  • the boiler 2, the superheated steam generator 3, the supply pipe unit 5, the condenser 12, the recovery pipe 13, the recovery container 14, and the catalytic reactor 15 are assembled so that the carbonization of organic matter in the soil is performed on site.
  • the processing apparatus 1 is installed (see FIGS. 1 to 4).
  • the boiler 2, the superheated steam generator 3, the condenser 12 and the like are operated. Steam generated in the boiler 2 is transferred to the superheated steam generator 3 through the communication pipe 31, and superheated steam is generated from the steam in the superheated steam generator 3, and the superheated steam is supplied to the superheated steam through the supply pipe unit 5. The superheated steam is supplied to the supply unit 4 and diffused into the soil X from the supply hole 4 a of the superheated steam supply unit 4.
  • the superheated steam can be diffused (diffused) into the soil via the superheated steam supply unit 4 buried in the soil X to be treated. Since it can diffuse freely in all directions such as the horizontal direction, the organic waste in the soil X to be treated can be carbonized sufficiently and efficiently. Carbide (charcoal) is generated by carbonization of such organic waste.
  • the temperature of the superheated steam generated by the superheated steam generator 3 is about 700 ° C.
  • the temperature of the soil is often about 600 ° C.
  • the high temperature heating body (800 degreeC or more) 6 is wound around the outer surface of the superheated steam supply part 4 in a contact state, the temperature of soil becomes a temperature higher than 600 degreeC.
  • the temperature of the superheated steam diffused from the superheated steam supply unit 4 is 150 ° C. or higher.
  • the temperature of the superheated steam dissipated from the superheated steam supply unit 4 is particularly preferably 160 ° C. to 1000 ° C. In this case, the energy cost can be suppressed and the organic waste in the soil X can be sufficiently carbonized. be able to.
  • the superheated steam supplied into the soil X to be treated is then converted into a vaporized component (which often contains water vapor, pyrolysis component from organic waste, water, methane gas, oil, fatty acid, etc.). It goes out of X, stays in the internal space 40 between the upper surface of the soil X and the cover body 11, and is sequentially collected in the collection pipe 13 through the connection holes 11a of the cover body 11. While passing through the recovery pipe 13, chlorine, acid and the like are removed by the catalytic reactor 15. The vaporized component that has passed through the recovery pipe 13 is collected in the condenser 12 and condensed in the condenser 12 to become a liquid (condensate), which is recovered in the recovery container. Since the vaporized component that has come out in the space above the treatment target soil X can be recovered by dissipating the superheated steam into the soil in this way, the environmental load can be reduced.
  • a vaporized component which often contains water vapor, pyrolysis component from organic waste, water, me
  • the organic matter carbonization treatment method in soil is merely an example, and is not particularly limited to such an embodiment.
  • the volume of the soil X to be treated is 400 m 3 (length 10 m ⁇ width 10 m ⁇ depth 4 m). That is, the soil X to be treated is a rectangular shape of 10 m in length and 10 m in width in a plan view, and a synthetic resin sheet is disposed along the dug shape in a state of being dug up to a depth of 4 m.
  • the recessed portion is filled with soil (containing 50 parts by mass of waste plastic product with respect to 100 parts by mass of soil) X. After passing through the soil X, the superheated steam dissipated in the soil X to be treated does not escape to the outside of the soil (horizontal direction, downward direction, etc.) from the dug recesses covered with the synthetic resin sheet.
  • the cover body 11 has a length of 20 m, a width of 20 m, and a maximum height of 2.5 m.
  • the internal volume of the internal space 40 between the cover body 11 and the upper surface of the soil is 1188 m 3 .
  • the temperature in the soil is 450 ° C.
  • Organic soil carbonization apparatus and soil organic carbonization method according to the present invention include, for example, organic wastes embedded in soil (plastic products, food, fishing nets, tires, electric wires, FRP, wood, factory waste, etc. It is preferably used for carbonizing organic waste), or used for carbonizing organic-containing water-containing soil (organic-containing sludge).
  • the organic waste and organic matter do not include animal carcasses.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Provided is a device that is for the carbonization of organic matter in soil and that can carbonize organic material (waste plastic items and the like) in soil in a buried state. The present invention has a configuration provided with: a boiler (2) that generates steam; a superheated steam generation device (3) that generates superheated steam from the steam transferred from the boiler; a superheated steam supply unit (4) that is buried in the ground (X) that is to be treated during carbonization, and that supplies the superheated steam into the ground; and a supply tube unit (5) that supplies the superheated steam generated by the superheated steam generation device (3) to the superheated steam supply unit (4).

Description

土壌中有機物炭化処理装置及び炭化処理方法Soil organic matter carbonization apparatus and carbonization method
　本発明は、土壌中の有機物（廃プラスチック品等の有機物系廃棄物など）を炭化処理できる土壌中有機物炭化処理装置及び土壌中有機物炭化処理方法に関する。 The present invention relates to a soil organic matter carbonization apparatus and a soil organic matter carbonization method that can carbonize organic matter in soil (organic waste such as waste plastics).
　なお、本明細書及び特許請求の範囲において、「有機物」及び「有機物系廃棄物」の語は、動物の死骸を含まない意味で用いる。 In the present specification and claims, the terms “organic matter” and “organic matter waste” are used in the meaning that does not include animal carcasses.
　廃プラスチック品等の有機物系産業廃棄物は、所定の土壌に埋設されて処理されることが多いが、土壌中に埋設された廃プラスチック品等は、生分解性プラスチックを除いて、分解されることは殆どない。このような土壌中に埋設された廃プラスチック品等の有機物系産業廃棄物は、自然な形に変換して土壌に帰すのが環境面から好ましい。 Organic industrial waste such as waste plastics is often buried and treated in the designated soil, but waste plastics buried in the soil are decomposed except for biodegradable plastics. There is almost nothing. It is preferable from an environmental viewpoint that such organic industrial wastes such as waste plastic products buried in the soil are converted into a natural form and returned to the soil.
　このような土壌中に埋設された廃プラスチック品等を極めて短期で自然な形に変換して土壌に帰す技術は、これまでになかったのが実状である。 </ P> <p> <p> <p> <p> <p> <p> <p> "<p> <p> <p> <p> <p> <p> <p> <p> <p>" <p> <p> <p> <p> <p> <p> <p.
　一方、有機物廃棄物を炭化処理する技術としては、野菜屑、汚泥等の有機物廃棄物を減圧雰囲気の処理槽内で攪拌しながら加熱して、所定の含水率となるまで廃棄物を乾燥させる乾燥処理工程と、前記処理槽内に過熱水蒸気を供給して、廃棄物の含水率を更に低下させたのち、廃棄物を炭化熱分解させる炭化処理工程とを、含むことを特徴とする廃棄物処理方法が公知である（特許文献１参照）。 On the other hand, as a technique for carbonizing organic waste, drying is performed by heating organic waste such as vegetable waste and sludge while stirring in a treatment tank in a reduced-pressure atmosphere to dry the waste until a predetermined moisture content is reached. A waste treatment comprising: a treatment step; and a carbonization treatment step of further reducing the moisture content of the waste by supplying superheated steam into the treatment tank and then carbonizing and pyrolyzing the waste. The method is known (see Patent Document 1).
特開２００７－２６０５４８号公報JP 2007-260548 A
　しかしながら、特許文献１に記載の処理方法は、廃棄物を所定の廃棄物処理システムの処理槽内に入れて該処理槽において廃棄物の乾燥処理や炭化処理を行う手法であるから、土壌中に埋設された状態の有機物系廃棄物（廃プラスチック品等）を埋設状態のままで処理することはできない。 However, the treatment method described in Patent Document 1 is a technique in which waste is put into a treatment tank of a predetermined waste treatment system and the waste is dried and carbonized in the treatment tank. Embedded organic waste (waste plastics, etc.) cannot be treated in the embedded state.
　本発明は、かかる技術的背景に鑑みてなされたものであって、土壌中の有機物（廃プラスチック品等）を埋設状態で炭化処理することのできる土壌中有機物炭化処理装置及び土壌中有機物炭化処理方法を提供することを目的とする。 The present invention has been made in view of such a technical background, and is an organic substance carbonization treatment apparatus in soil and an organic substance carbonization treatment in soil that can carbonize organic substances (such as waste plastic products) in the soil in an embedded state. It aims to provide a method.
  前記目的を達成するために、本発明は以下の手段を提供する。 In order to achieve the above object, the present invention provides the following means.
　［１］水蒸気を生成するボイラーと、
  前記ボイラーから移送される水蒸気から過熱水蒸気を発生させる過熱水蒸気発生装置と、
　炭化処理時に処理対象の土壌内に埋設され、該土壌内に過熱水蒸気を供給する過熱水蒸気供給部と、
　前記過熱水蒸気発生装置で発生する過熱水蒸気を前記過熱水蒸気供給部に供給する供給管部と、を備えることを特徴とする土壌中有機物炭化処理装置。 [1] a boiler that generates water vapor;
A superheated steam generator for generating superheated steam from the steam transferred from the boiler;
Embedded in the soil to be treated at the time of carbonization treatment, a superheated steam supply unit for supplying superheated steam into the soil,
An organic carbonization treatment apparatus in soil, comprising: a supply pipe section that supplies superheated steam generated by the superheated steam generation apparatus to the superheated steam supply section.
　［２］前記過熱水蒸気供給部は、長さ方向の一端側に接続用開口部が設けられると共に側面壁に複数の供給孔が設けられた管体を含み、前記管体の一端側の接続用開口部に前記供給管部が接続されている前項１に記載の土壌中有機物炭化処理装置。 [2] The superheated steam supply unit includes a tube body in which a connection opening is provided on one end side in the lengthwise direction and a plurality of supply holes are provided in a side wall, and is connected to one end side of the tube body The soil organic carbonization apparatus according to item 1, wherein the supply pipe is connected to the opening.
　［３］前記過熱水蒸気供給部の外面の少なくとも一部を接触状態に被覆する高温加熱体を更に備える前項１または２に記載の土壌中有機物炭化処理装置。 [3] The organic matter carbonization apparatus in soil according to the preceding item 1 or 2, further comprising a high-temperature heating body that covers at least a part of the outer surface of the superheated steam supply section in a contact state.
　［４］前記高温加熱体はシート状であり、該高温加熱体自体を８００℃以上の高温にすることができるものである前項３に記載の土壌中有機物炭化処理装置。 [4] The soil organic carbonization apparatus according to item 3 above, wherein the high-temperature heating body is in the form of a sheet, and the high-temperature heating body itself can be heated to a high temperature of 800 ° C. or higher.
　［５］前記処理対象の土壌の上面との間に内部空間を形成できて該内部空間に存在する気化成分の外部への漏出を抑制できるカバー体と、
　凝縮器と、
　一端が前記カバー体に設けられた接続用孔に接続され、他端が前記凝縮器に接続され、前記カバー体の内部空間に存在する気化成分を前記凝縮器に回収する回収管と、
  前記凝縮器で凝縮せしめた凝縮液を回収する回収容器と、を更に備える前項１～４のいずれか１項に記載の土壌中有機物炭化処理装置。 [5] A cover body that can form an internal space with the upper surface of the soil to be treated and can suppress leakage of vaporized components existing in the internal space to the outside;
A condenser,
One end is connected to a connection hole provided in the cover body, the other end is connected to the condenser, and a recovery pipe that recovers vaporized components present in the internal space of the cover body to the condenser,
The soil organic carbonization apparatus according to any one of items 1 to 4, further comprising a recovery container for recovering the condensate condensed by the condenser.
　［６］前記回収管の途中に配置された触媒反応器を更に備える前項５に記載の土壌中有機物炭化処理装置。 [6] The organic matter carbonization apparatus in soil according to the above item 5, further comprising a catalytic reactor disposed in the middle of the recovery pipe.
　［７］有機物系廃棄物を含有する土壌中の該有機物系廃棄物を炭化処理するのに用いられる前項１～６のいずれか１項に記載の土壌中有機物炭化処理装置。 [7] The soil organic carbonization apparatus according to any one of items 1 to 6, which is used to carbonize the organic waste in the soil containing the organic waste.
　［８］前記有機物系廃棄物が、プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の廃棄物を含むものである前項７に記載の土壌中有機物炭化処理装置。 [8] The organic matter in soil according to item 7 above, wherein the organic waste includes one or more kinds of waste selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP, and wood. Carbonization equipment.
　［９］有機物含有含水土壌を炭化処理するのに用いられる前項１～６のいずれか１項に記載の土壌中有機物炭化処理装置。 [9] The soil organic carbonization apparatus according to any one of items 1 to 6, which is used to carbonize organic matter-containing water-containing soil.
　［１０］過熱水蒸気発生装置で発生させた過熱水蒸気を、処理対象の有機物含有土壌内に埋設した過熱水蒸気供給部に供給し、該過熱水蒸気供給部から過熱水蒸気を処理対象土壌中に放散させることによって、処理対象土壌中の有機物を炭化させることを特徴とする土壌中有機物炭化処理方法。 [10] Supplying the superheated steam generated by the superheated steam generator to the superheated steam supply section embedded in the organic matter-containing soil to be treated, and dissipating the superheated steam from the superheated steam supply section into the treatment target soil. A method for carbonizing organic matter in soil, characterized by carbonizing organic matter in the soil to be treated.
　［１１］前記過熱水蒸気供給部は、側面壁に複数の供給孔が設けられた管体を含み、該複数の供給孔を介して過熱水蒸気を土壌中に放散させる前項１０に記載の土壌中有機物炭化処理方法。 [11] The superheated steam supply unit includes a pipe body having a plurality of supply holes provided on a side wall, and disperses the superheated steam into the soil through the plurality of supply holes. Carbonization method.
　［１２］前記過熱水蒸気供給部から１５０℃以上の過熱水蒸気を処理対象土壌中に放散させる前項１０または１１に記載の土壌中有機物炭化処理方法。 [12] The method for carbonizing organic matter in soil according to item 10 or 11, wherein superheated steam at 150 ° C. or higher is diffused into the soil to be treated from the superheated steam supply unit.
　［１３］前記有機物が、プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の有機物系廃棄物を含むものである前項１０～１２のいずれか１項に記載の土壌中有機物炭化処理方法。 [13] Any one of the items 10 to 12 above, wherein the organic matter includes one or more organic wastes selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP and wood. The method for carbonizing organic matter in soil according to claim 1.
　［１４］前記有機物含有土壌が、有機物含有含水土壌である前項１０～１３のいずれか１項に記載の土壌中有機物炭化処理方法。 [14] The method for carbonizing organic matter in soil according to any one of items 10 to 13, wherein the organic matter-containing soil is an organic matter-containing hydrous soil.
　［１］の発明では、炭化処理時に過熱水蒸気供給部を処理対象の土壌内に埋設し、過熱水蒸気発生装置で発生させた過熱水蒸気を過熱水蒸気供給部を介して土壌中に放散させることにより、土壌中の有機物を炭化処理することができる。例えば、土壌中に埋設された廃プラスチック品等の有機物系廃棄物（動物死骸を除く）を埋設状態で炭化処理することができる。また、過熱水蒸気供給部から土壌中に放散された過熱水蒸気は、土壌中において上下方向、水平方向等あらゆる方向に自在に拡散できるので、処理対象土壌中の有機物を十分にかつ効率良く炭化させることができる。 In the invention of [1], the superheated steam supply unit is embedded in the soil to be treated during carbonization, and the superheated steam generated by the superheated steam generator is diffused into the soil via the superheated steam supply unit. Organic matter in the soil can be carbonized. For example, it is possible to carbonize organic wastes (excluding animal carcasses) such as waste plastics embedded in the soil in an embedded state. In addition, superheated steam released from the superheated steam supply section into the soil can be freely diffused in the soil in all directions such as the vertical and horizontal directions, so that the organic matter in the soil to be treated can be carbonized sufficiently and efficiently. Can do.
　［２］の発明では、過熱水蒸気供給部は、長さ方向の一端側に接続用開口部が設けられると共に側面壁に複数の供給孔が設けられた管体を含み、管体の一端側の接続用開口部に供給管部が接続された構成であるから、該管体を処理対象土壌に刺し入れるだけで埋設することができ、このように過熱水蒸気供給部の埋設作業を容易に行うことができる利点がある。更に、管体の側面壁に複数の供給孔が形成されているから、過熱水蒸気を過熱水蒸気供給部から土壌中に効率良く放散させることができる。 In the invention of [2], the superheated steam supply section includes a tube body in which a connection opening is provided at one end side in the length direction and a plurality of supply holes are provided in a side wall, Since the supply pipe section is connected to the connection opening, the pipe body can be embedded simply by inserting it into the soil to be treated, and thus the superheated steam supply section can be embedded easily. There is an advantage that can be. Furthermore, since a plurality of supply holes are formed in the side wall of the tube body, the superheated steam can be efficiently diffused into the soil from the superheated steam supply section.
　［３］の発明では、過熱水蒸気供給部の外面の少なくとも一部を高温加熱体で接触状態に被覆した状態にして使用することで、過熱水蒸気供給部からより高い温度の過熱水蒸気を土壌中に放散できるので、有機物の炭化処理効率をより向上させることができる。 In the invention of [3], by using at least a part of the outer surface of the superheated steam supply section in a state of being contacted with a high-temperature heating body, superheated steam having a higher temperature is supplied from the superheated steam supply section to the soil. Since it can diffuse, the carbonization efficiency of organic substance can be improved more.
　［４］の発明では、高温加熱体がシート状であることで過熱水蒸気供給部の外面に高温加熱体を十分に接触させることができる（接触面積を増大できる）上に、高温加熱体自体を８００℃以上の高温にすることができるものであるから、過熱水蒸気供給部からより一層高い温度の過熱水蒸気を土壌中に放散できて、炭化処理効率をより一層向上させることができる。 In the invention of [4], since the high-temperature heating body is in a sheet form, the high-temperature heating body can be sufficiently brought into contact with the outer surface of the superheated steam supply section (the contact area can be increased), and the high-temperature heating body itself is Since the temperature can be increased to 800 ° C. or higher, the superheated steam at a higher temperature can be dissipated into the soil from the superheated steam supply unit, and the carbonization efficiency can be further improved.
　［５］の発明では、処理対象の土壌の上面との間に内部空間を形成できて該内部空間に存在する気化成分の外部への漏出を抑制できるカバー体と、凝縮器と、一端がカバー体に設けられた接続用孔に接続され、他端が凝縮器に接続され、カバー体の内部空間に存在する気化成分を前記器に回収する回収管と、凝縮器で凝縮せしめた凝縮液を回収する回収容器と、を更に備えており、過熱水蒸気を土壌中に放散させることによって処理対象土壌の上の空間（処理対象土壌の上面とカバー体との間の内部空間）に出てきた気化成分（水蒸気、有機物系廃棄物からの熱分解成分、油分、脂肪酸、メタンガス、水など）を回収管を介して凝縮器に集めて該凝縮器で凝縮せしめて回収容器に回収できるので、環境負荷を低減できる。 In the invention of [5], a cover body that can form an internal space with the top surface of the soil to be treated and suppress leakage of vaporized components existing in the internal space, a condenser, and one end cover The connection hole provided in the body is connected, the other end is connected to the condenser, the recovery pipe for recovering the vaporized components present in the internal space of the cover body to the container, and the condensate condensed by the condenser A recovery container for recovery, and vaporization that has appeared in the space above the soil to be treated (the internal space between the top surface of the soil to be treated and the cover body) by dissipating superheated steam into the soil Components (water vapor, pyrolysis components from organic waste, oil, fatty acids, methane gas, water, etc.) can be collected in a condenser via a recovery pipe, condensed in the condenser, and recovered in a recovery container. Can be reduced.
　［６］の発明では、回収管の途中に触媒反応器が配置されているから、この触媒反応器で塩素、酸などを除去することができて、回収容器に回収された凝縮液（回収液）を利用しやすくできる利点がある。 In the invention of [6], since the catalytic reactor is arranged in the middle of the recovery pipe, chlorine, acid, etc. can be removed by this catalytic reactor, and the condensate (recovered liquid recovered) in the recovery container ) Is easy to use.
　［７］の発明では、土壌中の有機物系廃棄物を十分にかつ効率良く炭化させることができる。これにより土壌の減容化（体積の低減）を図ることができる。 In the invention of [7], organic wastes in the soil can be carbonized sufficiently and efficiently. As a result, volume reduction of the soil can be achieved.
　［８］の発明では、土壌中の有機物系廃棄物（プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の有機物を含む）を埋設状態で十分にかつ効率良く炭化させることができる。これにより土壌の減容化（体積の低減）を図ることができる。 In the invention of [8], organic wastes in soil (including one or more organic substances selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP and wood) are buried. Carbonization can be carried out sufficiently and efficiently. As a result, volume reduction of the soil can be achieved.
　［９］の発明では、有機物含有含水土壌（有機物含有汚泥）中の有機物を効率良く炭化させることができると共に水分も除去する（外部に飛散させる）ことができ、有機物含有含水土壌の減容化（体積の低減）を図ることができる。 In the invention of [9], the organic matter in the organic matter-containing water-containing soil (organic matter-containing sludge) can be carbonized efficiently and moisture can be removed (sprayed to the outside) to reduce the volume of the organic matter-containing water-containing soil. (Volume reduction) can be achieved.
　［１０］の発明では、過熱水蒸気発生装置で発生させた過熱水蒸気を、処理対象の土壌内に埋設した過熱水蒸気供給部に供給し、該過熱水蒸気供給部から過熱水蒸気を土壌中に放散させるから、土壌中に放散された過熱水蒸気は、土壌中において上下方向、水平方向等あらゆる方向に自在に拡散できるので、土壌中の有機物（動物の死骸を除く）を十分にかつ効率良く炭化処理することができる。 In the invention of [10], the superheated steam generated by the superheated steam generator is supplied to the superheated steam supply section embedded in the soil to be treated, and the superheated steam is diffused into the soil from the superheated steam supply section. Since the superheated steam dissipated in the soil can freely diffuse in the soil in all directions, such as the vertical and horizontal directions, the organic matter in the soil (excluding animal carcasses) must be carbonized sufficiently and efficiently. Can do.
　［１１］の発明では、過熱水蒸気供給部は、側面壁に複数の供給孔が設けられた管体を含む構成であるから、該管体を処理対象土壌に刺し入れるだけで埋設することができ、このように過熱水蒸気供給部の埋設作業を容易に行うことができる利点がある。更に、管体の側面壁に複数の供給孔が形成されているから、過熱水蒸気をこれら複数の供給孔から土壌中に効率良く放散させることができる。 In the invention of [11], since the superheated steam supply section includes a tube body having a plurality of supply holes provided in the side wall, the tube body can be embedded simply by piercing the soil to be treated. Thus, there is an advantage that the operation of embedding the superheated steam supply unit can be easily performed. Furthermore, since a plurality of supply holes are formed in the side wall of the tubular body, the superheated steam can be efficiently diffused into the soil from the plurality of supply holes.
　［１２］の発明では、１５０℃以上の過熱水蒸気を処理対象土壌中に放散させるから、土壌中の有機物を十分に炭化させることができる。 In the invention of [12], superheated steam at 150 ° C. or higher is dissipated in the soil to be treated, so that organic matter in the soil can be sufficiently carbonized.
　［１３］の発明では、土壌中の有機物系廃棄物（プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の有機物系廃棄物を含むもの）を埋設状態で十分にかつ効率良く炭化させることができる。これにより土壌の減容化（体積の低減）を図ることができる。 In the invention of [13], organic wastes in soil (including one or more organic wastes selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP and wood) Can be carbonized sufficiently and efficiently in an embedded state. As a result, volume reduction of the soil can be achieved.
　［１４］の発明では、有機物含有含水土壌（有機物含有汚泥）中の有機物を効率良く炭化させることができると共に水分も除去する（外部に飛散させる）ことができ、有機物含有含水土壌の減容化（体積の低減）を図ることができる。 In the invention of [14], the organic matter in the organic matter-containing water-containing soil (organic matter-containing sludge) can be carbonized efficiently and moisture can also be removed (sprayed to the outside), and the organic matter-containing water-containing soil can be reduced in volume. (Volume reduction) can be achieved.
本発明の土壌中有機物炭化処理装置の一実施形態を示す概略平面図である。It is a schematic plan view which shows one Embodiment of the organic substance carbonization processing apparatus in soil of this invention. 図１の土壌中有機物炭化処理装置の概略正面図である。It is a schematic front view of the organic substance carbonization processing apparatus in soil of FIG. 図１におけるＡ－Ａ線の概略断面図である。It is a schematic sectional drawing of the AA in FIG. 図１におけるＢ－Ｂ線の概略断面図である。FIG. 2 is a schematic sectional view taken along line BB in FIG. 1. 過熱水蒸気供給部を示す斜視図である。It is a perspective view which shows a superheated steam supply part. 図１においてカバー体及びフレームを削除して示す概略平面図（供給主管２１、分岐フレキシブル管２２、過熱水蒸気供給部４の相互接続状態を示す平面図）である。FIG. 2 is a schematic plan view (a plan view showing an interconnected state of a supply main pipe 21, a branch flexible pipe 22, and a superheated steam supply unit 4) in which a cover body and a frame are deleted in FIG.
  本発明に係る土壌中有機物炭化処理装置の一実施形態を図１～４に示す。この土壌中有機物炭化処理装置１は、土壌中に埋設された有機物系廃棄物（プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ、木材等の有機物系廃棄物）を埋設状態で炭化処理するのに好適に用いられる、又は有機物含有含水土壌（有機物含有汚泥）を炭化処理するのに好適に用いられる。前記「ＦＲＰ」は、「繊維強化プラスチック品」の略語である。 1 to 4 show an embodiment of an organic carbonization device in soil according to the present invention. This soil organic carbonization device 1 carbonizes organic waste (organic waste such as plastic products, food, fishing nets, tires, electric wires, FRP, and wood) embedded in the soil in an embedded state. It is preferably used for carbonizing organic matter-containing water-containing soil (organic matter-containing sludge). The “FRP” is an abbreviation for “fiber reinforced plastic product”.
　本発明の土壌中有機物炭化処理装置１は、ボイラー２と、過熱水蒸気発生装置３と、過熱水蒸気供給部４と、供給管部５と、を備える。 The soil organic carbonization treatment apparatus 1 of the present invention includes a boiler 2, a superheated steam generator 3, a superheated steam supply unit 4, and a supply pipe unit 5.
  前記ボイラー２は、水から水蒸気を生成する装置である。このボイラー２で生成させた水蒸気は、連通管３１を介して前記過熱水蒸気発生装置３に移送される。即ち、前記ボイラー２と前記過熱水蒸気発生装置３は連通管３１で接続されている（図１参照）。前記ボイラー２としては、特に限定されるものではないが、例えば貫流蒸気ボイラー等が挙げられる。 The boiler 2 is a device that generates water vapor from water. The steam generated by the boiler 2 is transferred to the superheated steam generator 3 through the communication pipe 31. That is, the boiler 2 and the superheated steam generator 3 are connected by a communication pipe 31 (see FIG. 1). Although it does not specifically limit as the said boiler 2, For example, a once-through steam boiler etc. are mentioned.
　前記過熱水蒸気発生装置３は、水蒸気から過熱水蒸気を発生させる装置である。即ち、過熱水蒸気発生装置３は、前記ボイラー２から移送されてくる水蒸気から過熱水蒸気を発生させる。前記過熱水蒸気発生装置３としては、特に限定されるものではないが、例えば誘導過熱式の過熱水蒸気発生装置などが挙げられる。前記過熱水蒸気発生装置３で発生させる過熱水蒸気の温度としては、例えば７００℃などを例示できるが、特にこのような条件に限定されない。 The superheated steam generator 3 is a device that generates superheated steam from steam. That is, the superheated steam generator 3 generates superheated steam from the steam transferred from the boiler 2. The superheated steam generator 3 is not particularly limited, and examples thereof include an induction superheated steam generator. Examples of the temperature of the superheated steam generated by the superheated steam generator 3 include 700 ° C., but are not particularly limited to such conditions.
　前記過熱水蒸気供給部４は、本実施形態では、５個備えられている。前記過熱水蒸気供給部４は、図５に示すように、側面壁に複数の供給孔４ａが設けられた管体（パイプ）からなる。前記過熱水蒸気供給部４の長さ方向の一端（上端）に接続用開口部４ｂが形成され、長さ方向の他端（下端）は閉塞されている。前記過熱水蒸気供給部４は、その少なくとも一部が、炭化処理時に処理対象の土壌Ｘ内に埋設されて使用される（図３、４参照）。 In the present embodiment, five superheated steam supply units 4 are provided. As shown in FIG. 5, the superheated steam supply unit 4 is composed of a pipe (pipe) in which a plurality of supply holes 4a are provided in a side wall. A connection opening 4b is formed at one end (upper end) in the length direction of the superheated steam supply unit 4, and the other end (lower end) in the length direction is closed. At least a part of the superheated steam supply unit 4 is embedded in the soil X to be treated during carbonization (see FIGS. 3 and 4).
　前記供給管部５は、供給主管２１と、該供給主管２１の一端部から分岐した５本の分岐フレキシブル管２２とからなる。前記供給主管２１の他端が前記過熱水蒸気発生装置３に接続され、５本の分岐フレキシブル管２２のそれぞれが前記５本の過熱水蒸気供給部４の一端の接続用開口部４ｂの各々に接続されている。即ち、前記供給管部５の一方の端部が前記過熱水蒸気発生装置３に接続され、前記供給管部５の他方の端部が前記過熱水蒸気供給部４に接続されている。しかして、前記過熱水蒸気発生装置３で発生させた過熱水蒸気を前記供給管部５を介して前記過熱水蒸気供給部４に供給することができる。 The supply pipe section 5 includes a supply main pipe 21 and five branched flexible pipes 22 branched from one end of the supply main pipe 21. The other end of the supply main pipe 21 is connected to the superheated steam generator 3, and each of the five branch flexible pipes 22 is connected to each of the connection openings 4 b at one end of the five superheated steam supply parts 4. ing. That is, one end of the supply pipe part 5 is connected to the superheated steam generator 3, and the other end of the supply pipe part 5 is connected to the superheated steam supply part 4. Thus, the superheated steam generated by the superheated steam generator 3 can be supplied to the superheated steam supply section 4 through the supply pipe section 5.
　前記供給主管２１の一端部は、前記カバー体１１の挿通孔１１ｂを介してカバー体１１の内部空間４０内に配置されて先端側が屈曲して水平方向に沿うように延ばされている（図６参照）。この供給主管２１の水平部分（カバー体内水平部分）２１ａから前記５本の分岐フレキシブル管２２がそれぞれ分岐して接続されている。前記分岐フレキシブル管２２としては、特に限定されるものではないが、ＳＵＳ（ステンレス鋼）製分岐フレキシブル管が好適である。 One end portion of the supply main pipe 21 is disposed in the inner space 40 of the cover body 11 through the insertion hole 11b of the cover body 11, and the distal end side is bent and extends along the horizontal direction (see FIG. 6). The five branch flexible pipes 22 are branched and connected from a horizontal part (horizontal part in the cover) 21a of the supply main pipe 21, respectively. The branch flexible tube 22 is not particularly limited, but a SUS (stainless steel) branch flexible tube is suitable.
　なお、図１における７は操作制御盤である。この操作制御盤７は、前記ボイラー２、過熱水蒸気発生装置３の運転開始、停止等を指示できると共に、ボイラー２で発生する水蒸気の温度、過熱水蒸気発生装置３で発生する過熱水蒸気の圧力、温度等を制御することができる。土壌中の有機物系廃棄物（廃プラスチック品、食品廃棄物等）を十分に炭化させるには前記過熱水蒸気発生装置３で１５０℃以上の過熱水蒸気を発生させるのが好ましい。中でも、エネルギーコストを抑制しつつ炭化処理を十分に行わせるには、前記過熱水蒸気発生装置３で１６０℃～１０００℃の過熱水蒸気を発生させるのが特に好ましい。 In addition, 7 in FIG. 1 is an operation control panel. The operation control panel 7 can instruct the start and stop of the operation of the boiler 2 and the superheated steam generator 3, and the temperature of the steam generated in the boiler 2, the pressure and temperature of the superheated steam generated in the superheated steam generator 3. Etc. can be controlled. In order to sufficiently carbonize organic wastes (waste plastics, food wastes, etc.) in the soil, it is preferable that the superheated steam generator 3 generates superheated steam at 150 ° C. or higher. In particular, it is particularly preferable to generate superheated steam at 160 ° C. to 1000 ° C. with the superheated steam generator 3 in order to sufficiently perform carbonization while suppressing energy costs.
　本実施形態では、更に高温加熱体６を備えている。前記高温加熱体６はシート状に形成されたものであり、この高温加熱体自体を８００℃以上の高温にすることができるものである。即ち、図示しない電源回路によって高温加熱体６自体を８００℃以上の高温にすることができる。前記高温加熱体６の材料としては、例えば、スペシャルメタルズ社のインコネル（商品名）を例示できる。炭化処理時には、図５に示すように、前記過熱水蒸気供給部４の外面の少なくとも一部に高温加熱体６を接触状態に巻き付けて（被覆して）使用する。 In this embodiment, a high-temperature heating body 6 is further provided. The high-temperature heating body 6 is formed in a sheet shape, and the high-temperature heating body itself can be heated to 800 ° C. or higher. That is, the high-temperature heater 6 itself can be heated to a high temperature of 800 ° C. or higher by a power supply circuit (not shown). Examples of the material of the high-temperature heating body 6 include Inconel (trade name) manufactured by Special Metals. At the time of carbonization, as shown in FIG. 5, the high-temperature heating body 6 is wound around (covered) at least a part of the outer surface of the superheated steam supply unit 4 and used.
　本実施形態では、カバー体１１と、凝縮器１２と、回収管１３と、回収容器１４と、を更に備える。 In this embodiment, a cover body 11, a condenser 12, a recovery pipe 13, and a recovery container 14 are further provided.
　前記カバー体１１は、処理対象の土壌Ｘの上面との間に内部空間４０を形成するように張設される（図４参照）。このようなカバー体１１を処理対象の土壌Ｘの上に張設することによって、土壌Ｘの上面の内部空間４０と外気とを遮断する。前記カバー体１１は、通常は、シート状であり、その素材としては、特に限定されるものではないが、例えば、合成樹脂、ゴム等が挙げられる。図１等における２３は、前記カバー体１１に設けられた、人が出入りするための開閉部（出入口部）であり、ファスナーで自在に開閉できるように構成されている。また、図１等における２４は、フレームであり、前記カバー体１１を略ドーム状に張設する（吊り下げる）ために用いられている。 The cover body 11 is stretched so as to form an internal space 40 between the top surface of the soil X to be treated (see FIG. 4). By stretching such a cover body 11 on the soil X to be treated, the internal space 40 on the upper surface of the soil X and the outside air are blocked. The cover body 11 is normally in the form of a sheet, and the material thereof is not particularly limited, and examples thereof include synthetic resin and rubber. 1 and the like, 23 is an opening / closing part (entrance / exit part) provided on the cover body 11 for a person to enter and exit, and is configured to be freely opened and closed with a fastener. Further, reference numeral 24 in FIG. 1 and the like denotes a frame, which is used to stretch (suspend) the cover body 11 in a substantially dome shape.
  前記回収管１３は、一端が前記カバー体１１に設けられた接続用孔１１ａに接続され、他端が前記凝縮器１２に接続されている。前記回収管１３は、カバー体１１の内部空間４０に存在する気化成分を取り込んで前記凝縮器１２に移送することができる。即ち、カバー体１１の内部空間４０に存在する気化成分は、カバー体１１の接続用孔１１ａを介して前記回収管１３内に入り込んで該回収管１３内を通過して前記凝縮器１２内に入る。前記接続用孔１１ａは、張設されたカバー体１１の頂部（最も高い部位）に設けられるのが好ましい。 回収 One end of the recovery pipe 13 is connected to a connection hole 11 a provided in the cover body 11, and the other end is connected to the condenser 12. The recovery pipe 13 can take in a vaporized component present in the internal space 40 of the cover body 11 and transfer it to the condenser 12. That is, the vaporized component existing in the internal space 40 of the cover body 11 enters the recovery pipe 13 through the connection hole 11 a of the cover body 11, passes through the recovery pipe 13, and enters the condenser 12. enter. The connection hole 11a is preferably provided at the top (highest part) of the cover body 11 that is stretched.
  前記凝縮器１２は、気化成分を液体に凝縮させる装置である。本実施形態では、水冷方式の装置を採用している。前記凝縮器１２は、前記回収管１３から移送されてきた前記気化成分（内部空間４０に存在する気化成分）を凝縮させて液体にする。 The condenser 12 is a device that condenses the vaporized component into a liquid. In this embodiment, a water-cooling apparatus is employed. The condenser 12 condenses the vaporized component (vaporized component existing in the internal space 40) transferred from the recovery pipe 13 into a liquid.
　前記回収容器１４は、前記凝縮器１２の下方に配置されており、前記凝縮器１２から落下する液体（凝縮液）を回収する。 The collection container 14 is disposed below the condenser 12 and collects liquid (condensate) falling from the condenser 12.
  また、前記回収管１３の途中に触媒反応器１５が配置されている。この触媒反応器１５により回収管１３中の気化成分のうちの塩素、酸等を除去することができる。前記触媒反応器１５で使用される触媒成分としては、特に限定されるものではないが、例えば、酸化鉄、水酸化ナトリウム等が挙げられる。 In addition, a catalytic reactor 15 is disposed in the middle of the recovery pipe 13. This catalytic reactor 15 can remove chlorine, acid, etc., among the vaporized components in the recovery pipe 13. The catalyst component used in the catalytic reactor 15 is not particularly limited, and examples thereof include iron oxide and sodium hydroxide.
  次に、本発明に係る土壌中有機物炭化処理装置１を用いて土壌Ｘ中の有機物系廃棄物（プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ、木材等の有機物系廃棄物）を炭化処理する方法の一例について説明する。有機物系廃棄物を含有する土壌Ｘとしては、特に限定されるものではないが、例えば、有機物系廃棄物が埋設された最終処分場（例えば東京の夢の島の最終処分場等の各地の最終処分場等）などが挙げられる。 Next, carbonization treatment of organic wastes in the soil X (organic wastes such as plastic products, food, fishing nets, tires, electric wires, FRP, and wood) using the soil organic matter carbonization treatment apparatus 1 according to the present invention. An example of the method to do is demonstrated. The soil X containing organic waste is not particularly limited. For example, a final disposal site in which organic waste is buried (for example, a final disposal site in various places such as a final disposal site on Yumenoshima in Tokyo). Etc.).
　処理対象土壌Ｘ内に過熱水蒸気供給部４を差し込んで埋設する（図４参照）。この処理対象土壌Ｘの上面との間に内部空間４０を形成できるようにカバー体１１を張設する（図１～４参照）。 The superheated steam supply unit 4 is inserted and embedded in the soil X to be treated (see FIG. 4). The cover body 11 is stretched so that an internal space 40 can be formed between the top surface of the soil X to be treated (see FIGS. 1 to 4).
　また、上述した構成となるように、ボイラー２、過熱水蒸気発生装置３、供給管部５、凝縮器１２、回収管１３、回収容器１４、触媒反応器１５を組み付けて、現場において土壌中有機物炭化処理装置１を設置する（図１～４参照）。 In addition, the boiler 2, the superheated steam generator 3, the supply pipe unit 5, the condenser 12, the recovery pipe 13, the recovery container 14, and the catalytic reactor 15 are assembled so that the carbonization of organic matter in the soil is performed on site. The processing apparatus 1 is installed (see FIGS. 1 to 4).
　しかして、ボイラー２、過熱水蒸気発生装置３、凝縮器１２等を作動させる。ボイラー２で発生した水蒸気が連通管３１を介して過熱水蒸気発生装置３に移送され、この過熱水蒸気発生装置３において水蒸気から過熱水蒸気が発生し、この過熱水蒸気が供給管部５を介して過熱水蒸気供給部４に供給されて、この過熱水蒸気供給部４の供給孔４ａから過熱水蒸気が土壌Ｘ内に放散される。 Thus, the boiler 2, the superheated steam generator 3, the condenser 12 and the like are operated. Steam generated in the boiler 2 is transferred to the superheated steam generator 3 through the communication pipe 31, and superheated steam is generated from the steam in the superheated steam generator 3, and the superheated steam is supplied to the superheated steam through the supply pipe unit 5. The superheated steam is supplied to the supply unit 4 and diffused into the soil X from the supply hole 4 a of the superheated steam supply unit 4.
  このように処理対象土壌Ｘ中に埋設された過熱水蒸気供給部４を介して過熱水蒸気を土壌中に放散（拡散）させることができ、土壌中に放散された過熱水蒸気は、土壌中において上下方向、水平方向等あらゆる方向に自在に拡散できるので、処理対象土壌Ｘ中の有機物系廃棄物を十分にかつ効率良く炭化させることができる。このような有機物系廃棄物の炭化処理により炭化物（炭）が生成する。 In this way, the superheated steam can be diffused (diffused) into the soil via the superheated steam supply unit 4 buried in the soil X to be treated. Since it can diffuse freely in all directions such as the horizontal direction, the organic waste in the soil X to be treated can be carbonized sufficiently and efficiently. Carbide (charcoal) is generated by carbonization of such organic waste.
  なお、過熱水蒸気発生装置３で発生させる過熱水蒸気の温度が約７００℃である場合には、土壌の温度は、約６００℃程度になることが多い。また、過熱水蒸気供給部４の外面に接触状態に高温加熱体（８００℃以上）６を巻き付けた場合には、土壌の温度は、６００℃よりもさらに高い温度になる。 In addition, when the temperature of the superheated steam generated by the superheated steam generator 3 is about 700 ° C., the temperature of the soil is often about 600 ° C. Moreover, when the high temperature heating body (800 degreeC or more) 6 is wound around the outer surface of the superheated steam supply part 4 in a contact state, the temperature of soil becomes a temperature higher than 600 degreeC.
　前記過熱水蒸気供給部４から放散させる過熱水蒸気の温度は１５０℃以上であるのが好ましい。中でも、過熱水蒸気供給部４から放散させる過熱水蒸気の温度は１６０℃～１０００℃であるのが特に好ましく、この場合にはエネルギーコストを抑制できると共に土壌Ｘ中の有機物系廃棄物を十分に炭化させることができる。 It is preferable that the temperature of the superheated steam diffused from the superheated steam supply unit 4 is 150 ° C. or higher. In particular, the temperature of the superheated steam dissipated from the superheated steam supply unit 4 is particularly preferably 160 ° C. to 1000 ° C. In this case, the energy cost can be suppressed and the organic waste in the soil X can be sufficiently carbonized. be able to.
  一方、処理対象土壌Ｘ内へ供給された過熱水蒸気は、その後、気化成分（水蒸気、有機物系廃棄物からの熱分解成分、水、メタンガス、油、脂肪酸等を含む場合が多い）となって土壌Ｘ外へ出て、土壌Ｘの上面とカバー体１１との間の内部空間４０に滞留し、順次、前記カバー体１１の接続用孔１１ａを介して前記回収管１３内に回収されていく。前記回収管１３内を通過中に触媒反応器１５によって塩素、酸などが除去される。前記回収管１３を通過した気化成分は、凝縮器１２に集められてこの凝縮器１２で凝縮されて液体（凝縮液）となり、回収容器に回収される。このように過熱水蒸気を土壌中に放散させることによって処理対象土壌Ｘの上の空間に出てきた気化成分を回収できるので、環境負荷を低減できる。 On the other hand, the superheated steam supplied into the soil X to be treated is then converted into a vaporized component (which often contains water vapor, pyrolysis component from organic waste, water, methane gas, oil, fatty acid, etc.). It goes out of X, stays in the internal space 40 between the upper surface of the soil X and the cover body 11, and is sequentially collected in the collection pipe 13 through the connection holes 11a of the cover body 11. While passing through the recovery pipe 13, chlorine, acid and the like are removed by the catalytic reactor 15. The vaporized component that has passed through the recovery pipe 13 is collected in the condenser 12 and condensed in the condenser 12 to become a liquid (condensate), which is recovered in the recovery container. Since the vaporized component that has come out in the space above the treatment target soil X can be recovered by dissipating the superheated steam into the soil in this way, the environmental load can be reduced.
  上記土壌中有機物炭化処理方法は、その一例を示したものに過ぎず、特にこのような態様に限定されるものではない。 The organic matter carbonization treatment method in soil is merely an example, and is not particularly limited to such an embodiment.
　次に、前記土壌中有機物炭化処理装置１、土壌中有機物炭化処理方法を用いて処理対象土壌Ｘ中の有機物系廃棄物を炭化処理する一例を示す。 Next, an example of carbonizing organic waste in the soil X to be treated using the soil organic carbonization apparatus 1 and the soil organic carbonization method will be described.
  処理対象土壌Ｘの体積は４００ｍ3（縦１０ｍ×横１０ｍ×深さ４ｍ）である。即ち、処理対象土壌Ｘは、平面視において縦１０ｍ×横１０ｍの矩形状で深さ４ｍまで堀り込んだ状態で合成樹脂シートがこの堀り込み形状に沿わせて配設され、この堀り込み凹部に土壌（土壌１００質量部に対し廃プラスチック品５０質量部を含有する）Ｘが充填されたものである。処理対象土壌Ｘに放散された過熱水蒸気は、合成樹脂シートが被せられた堀り込み凹部から土壌の外方（水平方向や下方向等）に逃げることはなく、土壌Ｘ内を通過した後、カバー体１１と土壌の上面との間の内部空間４０に逃げる。カバー体１１は、縦２０ｍ、横２０ｍ、最高高さ２．５ｍであり、カバー体１１と土壌の上面との間の内部空間４０の内容積は１１８８ｍ3である。 The volume of the soil X to be treated is 400 m 3 (length 10 m × width 10 m × depth 4 m). That is, the soil X to be treated is a rectangular shape of 10 m in length and 10 m in width in a plan view, and a synthetic resin sheet is disposed along the dug shape in a state of being dug up to a depth of 4 m. The recessed portion is filled with soil (containing 50 parts by mass of waste plastic product with respect to 100 parts by mass of soil) X. After passing through the soil X, the superheated steam dissipated in the soil X to be treated does not escape to the outside of the soil (horizontal direction, downward direction, etc.) from the dug recesses covered with the synthetic resin sheet. It escapes to the internal space 40 between the cover body 11 and the upper surface of soil. The cover body 11 has a length of 20 m, a width of 20 m, and a maximum height of 2.5 m. The internal volume of the internal space 40 between the cover body 11 and the upper surface of the soil is 1188 m 3 .
  過熱水蒸気発生装置３で発生する７００℃の過熱水蒸気を５本の過熱水蒸気供給部４を介して土壌Ｘ中に放散させる。５本の過熱水蒸気供給部４から合計で２０００ｋｇ／時間の過熱水蒸気を土壌中に２４時間連続して放散させる。これら５本の過熱水蒸気供給部４の平面配置は、図１に示すとおりであり、中心の過熱水蒸気供給部４を取り囲む４本の過熱水蒸気供給部４の相互の間隔（縦方向、横方向）は８ｍである（即ち中心の過熱水蒸気供給部４を取り囲む４本の過熱水蒸気供給部４で形成される平面視正方形の一辺の長さは８ｍである）。 ７００ 700 ° C. superheated steam generated by the superheated steam generator 3 is diffused into the soil X via the five superheated steam supply units 4. A total of 2000 kg / hour of superheated steam is diffused from the five superheated steam supply sections 4 into the soil for 24 hours. The plane arrangement of these five superheated steam supply units 4 is as shown in FIG. 1, and the interval between the four superheated steam supply units 4 surrounding the central superheated steam supply unit 4 (vertical direction, horizontal direction). Is 8 m (that is, the length of one side of the square in plan view formed by the four superheated steam supply units 4 surrounding the central superheated steam supply unit 4 is 8 m).
　過熱水蒸気の放散を開始してから９０分経過後における深さ約１．５ｍの位置（合成樹脂シートから５０ｃｍ内側に入った位置であってかつ土壌上面から深さ約１．５ｍの位置）での土壌内の温度は４５０℃である。 At a position of about 1.5m in depth after 90 minutes from the start of the superheated steam diffusion (a position within 50cm from the synthetic resin sheet and a depth of about 1.5m from the top of the soil) The temperature in the soil is 450 ° C.
　このようにして過熱水蒸気を土壌Ｘ中に４時間以上連続して放散させることにより、土壌中の廃プラスチック品は十分に炭化処理されて炭化物（炭）になる。 In this way, by dissipating superheated steam continuously in the soil X for 4 hours or more, the waste plastic product in the soil is sufficiently carbonized to become carbide (charcoal).
　なお、上記条件等は一例を示すものであって、特にこのような条件等に限定されるものではない。 Note that the above conditions are examples, and are not particularly limited to such conditions.
　本発明に係る土壌中有機物炭化処理装置及び土壌中有機物炭化処理方法は、例えば、土壌に埋設された有機物系廃棄物（プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ、木材、工場廃材等の有機物系廃棄物）の炭化処理を行うのに好適に用いられる、或いは有機物含有含水土壌（有機物含有汚泥）を炭化処理するのに好適に用いられる。前記有機物系廃棄物及び有機物には、動物死骸は含まない。 Organic soil carbonization apparatus and soil organic carbonization method according to the present invention include, for example, organic wastes embedded in soil (plastic products, food, fishing nets, tires, electric wires, FRP, wood, factory waste, etc. It is preferably used for carbonizing organic waste), or used for carbonizing organic-containing water-containing soil (organic-containing sludge). The organic waste and organic matter do not include animal carcasses.
１…土壌中有機物炭化処理装置
２…ボイラー
３…過熱水蒸気発生装置
４…過熱水蒸気供給部
４ａ…供給孔
５…供給管部
６…高温加熱体
１１…カバー体
１１ａ…接続用孔
１２…凝縮器
１３…回収管
１４…回収容器
１５…触媒反応器
４０…内部空間
Ｘ…処理対象土壌 DESCRIPTION OF SYMBOLS 1 ... Organic carbonization apparatus 2 in soil 2 ... Boiler 3 ... Superheated steam generator 4 ... Superheated steam supply part 4a ... Supply hole 5 ... Supply pipe part 6 ... High temperature heating body 11 ... Cover body 11a ... Connection hole 12 ... Condenser 13 ... Recovery pipe 14 ... Recovery container 15 ... Catalytic reactor 40 ... Internal space X ... Soil to be treated

Claims (14)

  1. 　水蒸気を生成するボイラーと、
      前記ボイラーから移送される水蒸気から過熱水蒸気を発生させる過熱水蒸気発生装置と、
    　炭化処理時に処理対象の土壌内に埋設され、該土壌内に過熱水蒸気を供給する過熱水蒸気供給部と、
    　前記過熱水蒸気発生装置で発生する過熱水蒸気を前記過熱水蒸気供給部に供給する供給管部と、を備えることを特徴とする土壌中有機物炭化処理装置。     A boiler that produces water vapor;
    A superheated steam generator for generating superheated steam from the steam transferred from the boiler;
    Embedded in the soil to be treated at the time of carbonization treatment, a superheated steam supply unit for supplying superheated steam into the soil,
    An organic carbonization treatment apparatus in soil, comprising: a supply pipe section that supplies superheated steam generated by the superheated steam generation apparatus to the superheated steam supply section.
  2. 　前記過熱水蒸気供給部は、長さ方向の一端側に接続用開口部が設けられると共に側面壁に複数の供給孔が設けられた管体を含み、前記管体の一端側の接続用開口部に前記供給管部が接続されている請求項１に記載の土壌中有機物炭化処理装置。 The superheated steam supply unit includes a tube body having a connection opening provided on one end side in the length direction and a plurality of supply holes provided on a side wall, and the connection opening on the one end side of the tube body. The soil organic carbonization apparatus according to claim 1, wherein the supply pipe unit is connected.
  3.   前記過熱水蒸気供給部の外面の少なくとも一部を接触状態に被覆する高温加熱体を更に備える請求項１または２に記載の土壌中有機物炭化処理装置。 The organic matter carbonization apparatus in soil according to claim 1 or 2, further comprising a high-temperature heating body that covers at least a part of the outer surface of the superheated steam supply unit in a contact state.
  4.   前記高温加熱体はシート状であり、該高温加熱体自体を８００℃以上の高温にすることができるものである請求項３に記載の土壌中有機物炭化処理装置。 4. The soil organic carbonization apparatus according to claim 3, wherein the high-temperature heating body is in a sheet form, and the high-temperature heating body itself can be heated to a high temperature of 800 ° C. or higher.
  5.   前記処理対象の土壌の上面との間に内部空間を形成できて該内部空間に存在する気化成分の外部への漏出を抑制できるカバー体と、
    　凝縮器と、
    　一端が前記カバー体に設けられた接続用孔に接続され、他端が前記凝縮器に接続され、前記カバー体の内部空間に存在する気化成分を前記凝縮器に回収する回収管と、
      前記凝縮器で凝縮せしめた凝縮液を回収する回収容器と、を更に備える請求項１～４のいずれか１項に記載の土壌中有機物炭化処理装置。     A cover body that can form an internal space between the top surface of the soil to be treated and can suppress leakage of vaporized components existing in the internal space to the outside;
    A condenser,
    One end is connected to a connection hole provided in the cover body, the other end is connected to the condenser, and a recovery pipe that recovers vaporized components present in the internal space of the cover body to the condenser,
    The soil organic carbonization apparatus according to any one of claims 1 to 4, further comprising a recovery container for recovering the condensate condensed by the condenser.
  6. 　前記回収管の途中に配置された触媒反応器を更に備える請求項５に記載の土壌中有機物炭化処理装置。 The soil organic carbonization apparatus according to claim 5, further comprising a catalytic reactor disposed in the middle of the recovery pipe.
  7.   有機物系廃棄物を含有する土壌中の該有機物系廃棄物を炭化処理するのに用いられる請求項１～６のいずれか１項に記載の土壌中有機物炭化処理装置。 The soil organic carbonization apparatus according to any one of claims 1 to 6, which is used for carbonizing the organic waste in soil containing organic waste.
  8.   前記有機物系廃棄物が、プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の廃棄物を含むものである請求項７に記載の土壌中有機物炭化処理装置。 The organic matter carbonization treatment in soil according to claim 7, wherein the organic waste includes one or more kinds of waste selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP, and wood. apparatus.
  9.   有機物含有含水土壌を炭化処理するのに用いられる請求項１～６のいずれか１項に記載の土壌中有機物炭化処理装置。 The soil organic carbonization apparatus according to any one of claims 1 to 6, which is used for carbonizing organic water-containing soil.
  10.   過熱水蒸気発生装置で発生させた過熱水蒸気を、処理対象の有機物含有土壌内に埋設した過熱水蒸気供給部に供給し、該過熱水蒸気供給部から過熱水蒸気を処理対象土壌中に放散させることによって、処理対象土壌中の有機物を炭化させることを特徴とする土壌中有機物炭化処理方法。 The superheated steam generated by the superheated steam generator is supplied to the superheated steam supply unit embedded in the organic matter-containing soil to be treated, and the superheated steam is dissipated in the soil to be treated from the superheated steam supply unit. A method for carbonizing organic matter in soil, characterized by carbonizing organic matter in the target soil.
  11. 　前記過熱水蒸気供給部は、側面壁に複数の供給孔が設けられた管体を含み、該複数の供給孔を介して過熱水蒸気を土壌中に放散させる請求項１０に記載の土壌中有機物炭化処理方法。 The soil organic carbonization treatment according to claim 10, wherein the superheated steam supply unit includes a pipe body having a plurality of supply holes provided on a side wall, and dissipates superheated steam into the soil through the plurality of supply holes. Method.
  12.   前記過熱水蒸気供給部から１５０℃以上の過熱水蒸気を処理対象土壌中に放散させる請求項１０または１１に記載の土壌中有機物炭化処理方法。 The method for carbonizing organic matter in soil according to claim 10 or 11, wherein superheated steam at 150 ° C or higher is diffused into the treatment target soil from the superheated steam supply unit.
  13.   前記有機物が、プラスチック品、食品、漁網、タイヤ、電線、ＦＲＰ及び木材からなる群より選ばれる１種または２種以上の有機物系廃棄物を含むものである請求項１０～１２のいずれか１項に記載の土壌中有機物炭化処理方法。 The organic substance includes one or more organic wastes selected from the group consisting of plastic products, food, fishing nets, tires, electric wires, FRP, and wood. Of organic carbonization in soil.
  14.   前記有機物含有土壌が、有機物含有含水土壌である請求項１０～１３のいずれか１項に記載の土壌中有機物炭化処理方法。 The method for carbonizing organic matter in soil according to any one of claims 10 to 13, wherein the organic matter-containing soil is organic matter-containing water-containing soil.
PCT/JP2011/066114 2011-07-14 2011-07-14 Method for carbonization and device for carbonization of organic matter in soil WO2013008337A1 (en)

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