WO2013008338A1 - Dispositif de stérilisation de sol et procédé de stérilisation de sol - Google Patents

Dispositif de stérilisation de sol et procédé de stérilisation de sol Download PDF

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Publication number
WO2013008338A1
WO2013008338A1 PCT/JP2011/066115 JP2011066115W WO2013008338A1 WO 2013008338 A1 WO2013008338 A1 WO 2013008338A1 JP 2011066115 W JP2011066115 W JP 2011066115W WO 2013008338 A1 WO2013008338 A1 WO 2013008338A1
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WO
WIPO (PCT)
Prior art keywords
soil
superheated steam
treated
supply unit
sterilization
Prior art date
Application number
PCT/JP2011/066115
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English (en)
Japanese (ja)
Inventor
伊藤　智章
Original Assignee
株式会社ワンワールド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ワンワールド filed Critical 株式会社ワンワールド
Priority to PCT/JP2011/066115 priority Critical patent/WO2013008338A1/fr
Priority to CN201180072198.9A priority patent/CN103702775A/zh
Priority to JP2013523760A priority patent/JP5784123B2/ja
Publication of WO2013008338A1 publication Critical patent/WO2013008338A1/fr

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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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G11/00—Sterilising soil by steam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A61L2/06—Hot gas
    • A61L2/07—Steam

Definitions

  • the present invention relates to a soil sterilization treatment apparatus and a soil sterilization treatment method that are suitably used for sterilizing soil in which dead bodies of animals (such as cows and chickens) are embedded.
  • bactericidal is used to mean not only bactericidal (bactericidal) but also virucidal.
  • the present invention has been made in view of such a technical background, and is capable of sterilizing a treatment target soil without using a chemical agent, is excellent in safety, and efficiently and sufficiently treats the treatment target soil.
  • An object of the present invention is to provide a soil sterilization treatment apparatus and a soil sterilization treatment method that can be sterilized.
  • 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 section for supplying superheated steam into the soil
  • a soil sterilization treatment apparatus 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; 5.
  • the soil sterilization treatment apparatus according to any one of the preceding items 1 to 4, further comprising a collection container for collecting the condensate condensed by the condenser.
  • a soil sterilization method characterized in that the soil to be treated is sterilized.
  • the superheated steam supply unit is embedded in the soil to be treated during the sterilization treatment, and the superheated steam generated by the superheated steam generator is diffused into the soil through the superheated steam supply unit. Since the soil can be sterilized without using a chemical agent in this way, the safety is excellent.
  • the superheated steam diffused into the soil from the superheated steam supply section can be freely diffused in all directions such as the vertical direction and the horizontal direction in the soil, so that the soil to be sterilized is thoroughly and efficiently sterilized. be able to.
  • 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 diffused into the soil from the superheated steam supply unit, and the sterilization 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, thermal decomposition components from animal carcasses, oil, fatty acids, methane gas, water, etc.
  • the soil in which the animal carcasses are buried can be sterilized sufficiently and efficiently without fail.
  • 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 diffused in the soil can be freely diffused in all directions such as the vertical direction and the horizontal direction in the soil, the soil to be sterilized can be sterilized sufficiently and efficiently without fail. Moreover, since soil can be sterilized without using chemical agents, it is excellent in safety.
  • the superheated steam supply unit since the superheated steam supply unit 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.
  • 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.
  • FIG. 1 to 4 show an embodiment of a soil sterilization apparatus according to the present invention.
  • This soil sterilization apparatus is suitably used to sterilize soil in which dead bodies of animals such as cows and chickens are embedded.
  • the soil sterilization 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 sterilization (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. In order to sufficiently sterilize the carcasses of animals (cow, chicken, etc.) in the soil, it is preferable to generate superheated steam at 120 ° C. or higher with the superheated steam generator 3, and generate superheated steam at 130 ° C. to 1000 ° C. Is particularly preferred.
  • the soil to be treated can be sterilized, and the carcass treatment of the dead animals in the soil can also be performed. .
  • 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.
  • 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 recovery container 14 is disposed below the condenser 12 and recovers the recovered liquid 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.
  • Examples of the soil to be treated include soil in which dead bodies of animals (such as cows and chickens) are buried.
  • the soil in which the carcasses of the animals (cattle, chickens, etc.) are buried generally contains coarse organic matter such as animal carcasses, organic matter (humus) generated by alteration of the coarse organic matter by the action of microorganisms and the like.
  • 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 soil sterilization processing apparatus is assembled on site by assembling 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 so as to have the above-described configuration. 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 be freely diffused in all directions such as the horizontal direction, the soil X to be sterilized can be sterilized sufficiently and efficiently without fail. Moreover, since it sterilizes with superheated steam and can sterilize soil without using chemical agents, it is excellent in safety.
  • 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 dissipated from the superheated steam supply unit 4 is preferably 120 ° C. or higher, and among them, the temperature of the superheated steam dissipated from the superheated steam supply unit 4 is particularly preferably 130 ° C. to 1000 ° C. In this case, the energy cost can be suppressed and the sterilization treatment can be sufficiently performed.
  • the temperature of the superheated steam diffused from the superheated steam supply unit 4 is 150 ° C. or higher, the soil to be treated can be sterilized, and the carcass treatment of animal dead bodies in the soil can be performed. it can. In order to sufficiently perform the carbonization treatment while suppressing the energy cost, it is preferable that the temperature of the superheated steam diffused from the superheated steam supply unit 4 is 160 ° C. to 1000 ° C.
  • the superheated steam supplied into the soil X to be treated becomes a vaporized component (which often contains water vapor, a thermal decomposition component from animal carcass, water, methane gas, oil, fatty acid, etc.) outside the soil X.
  • a vaporized component which often contains water vapor, a thermal decomposition component from animal carcass, water, methane gas, oil, fatty acid, etc.
  • 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
  • the soil sterilization method 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 arranged along the dug shape in a state where it is dug up to a depth of 4 m. The recessed portion is filled with 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 recess 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 .
  • the temperature in the soil is 450 ° C.
  • the temperature of the process target soil X becomes 450 degreeC, it turns out that the process target soil X can be sterilized using the soil sterilization processing apparatus 1 and the soil sterilization process method of this invention.
  • the soil sterilization treatment apparatus and the soil sterilization treatment method according to the present invention are preferably used to sterilize soil in which dead bodies of animals such as cattle and chickens are embedded, but are particularly limited to such applications. is not.
  • the soil sterilization processing apparatus and the soil sterilization processing method according to the present invention can perform not only sterilization of soil but also carbonization of animal carcasses in soil by using high-temperature superheated steam.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention se rapporte à un dispositif de stérilisation de sol qui peut efficacement et suffisamment stériliser le sol à traiter, et qui offre une meilleure sécurité, pouvant stériliser le sol à traiter sans utiliser d'agent chimique. La présente invention est configurée pour être pourvue : d'une chaudière (2) qui produit de la vapeur ; d'un dispositif de production de vapeur surchauffée (3) qui produit de la vapeur surchauffée à partir de la vapeur transférée depuis la chaudière ; d'une unité d'alimentation en vapeur surchauffée (4) qui est enfoncée dans le sol (X) à traiter au cours du processus de stérilisation, et qui achemine la vapeur surchauffée dans le sol (X) ; et d'une unité de tube d'alimentation (5) qui achemine la vapeur surchauffée produite par le dispositif de production de vapeur surchauffée (3) jusqu'à l'unité d'alimentation en vapeur surchauffée (4).
PCT/JP2011/066115 2011-07-14 2011-07-14 Dispositif de stérilisation de sol et procédé de stérilisation de sol WO2013008338A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2011/066115 WO2013008338A1 (fr) 2011-07-14 2011-07-14 Dispositif de stérilisation de sol et procédé de stérilisation de sol
CN201180072198.9A CN103702775A (zh) 2011-07-14 2011-07-14 土壤杀菌处理装置及土壤杀菌处理方法
JP2013523760A JP5784123B2 (ja) 2011-07-14 2011-07-14 土壌殺菌処理装置及び土壌殺菌処理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/066115 WO2013008338A1 (fr) 2011-07-14 2011-07-14 Dispositif de stérilisation de sol et procédé de stérilisation de sol

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WO2013008338A1 true WO2013008338A1 (fr) 2013-01-17

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CN104488612A (zh) * 2014-11-18 2015-04-08 北京农业信息技术研究中心 一种节能育苗地床土壤消毒系统及方法
CN104509245B (zh) * 2014-12-29 2016-03-09 韩京龙 一种废弃人参地土壤改良方法及其土壤消毒装置
CN104542549B (zh) * 2015-01-20 2016-08-17 内蒙古工业大学 基于聚光集热的太阳能杀虫灭菌装置
CN105618474B (zh) * 2016-02-25 2019-03-05 安徽省通源环境节能股份有限公司 蒸馏处理土壤污染物的装置及方法
KR101860351B1 (ko) * 2017-06-02 2018-05-24 아름다운 환경건설(주) 토양 내 유기 오염물 및 휘발성 중금속 정화 장치 및 정화 방법
CN109349266A (zh) * 2018-11-20 2019-02-19 慕乃道 一种土壤高温杀虫灭菌处理方法
TWI672991B (zh) * 2018-11-27 2019-10-01 楊浩 組裝式輸送管、具有該組裝式輸送管的輸送系統以及灌溉方法與土壤殺菌方法
CN109983966B (zh) * 2019-05-09 2024-08-06 亳州市皖北药业有限责任公司 一种种植土壤净化装置

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JPWO2013008338A1 (ja) 2015-02-23
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