WO2010134775A2 - Méthode de traitement de sols contaminés comprenant un processus utilisant de la vapeur, et appareil associé - Google Patents

Méthode de traitement de sols contaminés comprenant un processus utilisant de la vapeur, et appareil associé Download PDF

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Publication number
WO2010134775A2
WO2010134775A2 PCT/KR2010/003208 KR2010003208W WO2010134775A2 WO 2010134775 A2 WO2010134775 A2 WO 2010134775A2 KR 2010003208 W KR2010003208 W KR 2010003208W WO 2010134775 A2 WO2010134775 A2 WO 2010134775A2
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Prior art keywords
steam
contaminated soil
tank
contaminated
soil
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PCT/KR2010/003208
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English (en)
Korean (ko)
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WO2010134775A3 (fr
Inventor
유선주
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금광개발주식회사
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Publication of WO2010134775A2 publication Critical patent/WO2010134775A2/fr
Publication of WO2010134775A3 publication Critical patent/WO2010134775A3/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil

Definitions

  • the present application relates to a contaminated soil treatment method and apparatus therefor including a steaming process among the restoration methods of soil contaminated with oil.
  • the present application is introduced to the contaminated soil by introducing the steam steam process during the restoration process for recovering the contaminated soil, clay, or silt soil from the oil contaminated area in the area where the military unit or oil storage area is located.
  • Polluted soil treatment method and apparatus for lowering the viscosity of oil components to be desorbed to collect on the upper side and blowing strong air to discharge the desorbed oil components to the upper side to be discharged to the duct and to capture the air pollution source through the exhaust gas purification device It is about.
  • the soil is complex in composition, resulting in a variety of reactions to harmful substances. Pollution continues for a long time even if the facility is improved in connection with the discharge of hazardous substances. Air pollution and water pollution can be cured by natural phenomena. Once the soil is contaminated, it continues semi-permanently without purification. Soil pollution does not end when the pollutants accumulate on the ground, but is transferred to crops and animals and accumulated, or contaminated groundwater, surface water, and scattering of contaminated soil. It can also be said that the ripple effect is also great.
  • the present application relates to a restoration method and a treatment apparatus for restoring the earth and sand including clay or silt into the oil contaminated soil near the military unit or the oil reservoir as described above.
  • the contaminated soil purification method is roughly divided into physicochemical treatment method and biological treatment method, and the physicochemical treatment method is classified into soil vapor extraction method, soil washing method and thermal desorption method.
  • Soil vapor extraction method is a geothermal treatment technology that removes volatile, semi-volatile and organic compounds by installing a gas extraction well above the upper unsaturated aquifer of groundwater to remove volatile, semi-volatile and organic compounds.
  • Low problem it is difficult to use in a place where gas flow is difficult due to the dense soil layer, the extracted gas has a disadvantage that requires post-treatment to prevent air pollution.
  • the soil washing method uses a proper cleaning agent to weaken the surface tension of harmful pollutants bound to the soil particles or to change the heavy metal into a liquid phase to separate harmful organic pollutants and heavy metals from the soil particles, or a surfactant.
  • Restoration cost increases due to the use of chemicals, restores only within a certain particle size (less than 5mm), large particles are not washable, and many sludges are discharged due to secondary pollution due to the use of surfactants and chemicals. There is a drawback to this.
  • thermal desorption is a technology that volatilizes and desorbs pollutants adsorbed on soil by heating the soil to a certain temperature, and vaporizes and desorbs volatile and semi-volatile organic substances at high or low temperatures.
  • Soil containing humic acid has a problem that the reaction time is long, the treatment cost increases, and high energy costs are required compared to other purification techniques.
  • biological treatment methods include soil cultivation method, biological ventilation method, and natural reduction method.
  • Soil cultivation method involves excavating and moving contaminated soil, laying it in a separate treatment plant, and inverting it periodically to supply microorganisms. It is a biological purification technology that removes organic pollutants by providing aerobic biodegradation conditions, and the biological ventilation method is a technology that removes biodegradable organic pollutants existing in unsaturated zones using indigenous microorganisms. And techniques that utilize single or multiple effects of various processes in which load, flow rate or toxicity of pollutants are reduced by physical, chemical, and biological processes occurring naturally in groundwater.
  • the biological treatment method has a long-term use to achieve the purpose of purification, requires long-term observation and control, and if there is a lack of information, it is easy to fail, and in case of failure, further additional costs may be incurred.
  • Patent Nos. 59922, 624444, 755910, 870909, etc. as a prior application for purifying contaminated soil, bar washing method and separation method of the contaminated soil is disclosed
  • the patent discloses a technique for restoring the soil to be of high quality by washing the mud, soil or gravel layer discharged in the state of surroundings with oil pollution and heavy metals, or in heavy metals in sewers, reservoirs, or dredged soils.
  • the present application is not a process using the washing water as in the prior art as described above, there is no fear of the discharge of process wastewater and a large amount of sludge, and put the contaminated soil in a dry state in a steam ionization tank using contaminated soil using steam of high temperature and high pressure It has the technical idea of giving steaming effect to the oil for a certain time to mature the desorption condition of the oil content, and then discharge it to restore it temporarily.
  • the present application corresponds to the physicochemical treatment method of the contaminated soil purification method, and among them, the soil washing method.
  • the cleaning agent or the washing water which is a chemical agent such as a surfactant, is used, but the soil provided herein
  • the cleaning method does not use chemicals or separate washing water, and has only a high temperature and high pressure steam supply means and an air supply means to remove and remove oil components in the contaminated soil, and to restore the restored soil to the restoration target location.
  • the invention started with the problem to provide a restoration method.
  • the process of putting the restoration object into the steam ionization bath and steaming the bar, the body of the steam ionization bath provided herein is a built-in stirring device having a screw type or agitator blades, while stirring the restoration object, the steam of high temperature and high pressure first After the warming of the object to be restored by maintaining a certain time and giving a poultice effect, the oil contaminants attached to the object to be removed are desorbed from the soil particles, and the air is strongly supplied at a time. Together with the purpose to provide an environment-friendly restoration method to catch the harmful gas in the exhaust gas purification process by discharged to the outside duct.
  • the present application is a method for restoring soil contaminated with oil, the first step of collecting the contaminated soil restoration object and put it in the hopper storage tank to transfer the metered amount to the steam ionization tank; And the steam ionization tank is provided to have a steam supply means and an air supply means in an outer cylinder and a stirring means inside to stir the contaminated soil restoration object, and when the atmospheric pressure is based on 1 atmospheric pressure in units of 1.01325 kgf / cm2
  • oil that contaminates the surrounding land in the area where military units are located or where oil pipelines pass through is a fuel oil of diesel or Banker C oil system.
  • the low viscosity of these oils is good for fluidity regardless of temperature, and is fast when released into the atmosphere. Although it has a volatilizing property in it, crude crude oil or heavy oil has a high viscosity, so it is hard to volatilize and adheres to soil, sand, gravel, etc., and solidifies.
  • oils released in the West Coast tanker accident are crude oil components that are unrefined. These oils have high viscosity when the temperature decreases, resulting in loss of fluidity and the removal of attached oil. In order to desorb it, it is necessary to increase the temperature of the object to reduce the viscosity.
  • Steam ionization tank of the present application is a built-in stirring means such as a screw to be stirred slowly about 10 to 30 times per minute, so even when a clay layer or silt layer is mixed in the contaminated soil, naturally mixed with the general soil stone and permeability coefficient automatically Can be adjusted and thus has an effect of increasing the purification efficiency.
  • This company does not use chemical cleaning agent or washing water, and has a piping for supplying external steam or air to the steam ionization tank without generating secondary pollutants.
  • the steam ion desorption tank of the present application is provided in a structure that discharges the soil to be cleaned directly in the direct structure after decontamination of oil contaminants after the restoration object is transferred to a vertical direct structure without using water, thereby providing a structure that does not require a separate transfer line. It has the effect of saving the workplace site.
  • FIG. 1 is an implementation diagram of a processing system in which the technical idea of the present application is implemented.
  • Figure 2 is a front perspective view showing the internal structure of the steam ionization bath applied herein.
  • FIG. 3 is a side perspective view of the steam ionization bath of FIG.
  • FIG. 4 is an application example of the exhaust gas purification apparatus applied herein.
  • restored object 10 hopper storage tank
  • Steam ionization bath provided herein is provided with a plurality of screw type agitator or agitator having a stirring blade inside the body is provided to gradually overturn the restoration object by slowly agitating the restoration object so that there is no blockage section, After the piping for external steam or air supply and supplying the high temperature and high pressure steam to the slowly-stirred restoration object to warm up the restoration object, for example, when the standard pressure is 1.01325 kgf / cm2, the internal pressure is 1.1.
  • the steam heating desorption tank further includes a heating means in which an electric heating coil is selected from a steam coil, an infrared heater, or a carbon coating in order to quickly heat the contents, thereby rapidly warming the restoration object to lower the viscosity of the oil content and the steaming process.
  • a heating means in which an electric heating coil is selected from a steam coil, an infrared heater, or a carbon coating in order to quickly heat the contents, thereby rapidly warming the restoration object to lower the viscosity of the oil content and the steaming process.
  • the intrinsic permeability coefficient of the soil to be restored is adjusted to 10 -8 or more and the restoration process must be carried out to obtain the decontamination effect.
  • the permeability coefficient is low in the original clay or silt granulator state, so that moisture or air can't penetrate into the clay or silt, so that the process of warming or desorbing contaminants may not be performed smoothly.
  • permeability is large sand (specific permeability: 10 -6 to 10 -8) or gravel (specific permeability: 10 -2 to 10 -6 range) were mixed as permeability (intrinsic per meability) is preferably adjusted to 10 -8 or more.
  • a stirring means such as a screw is built in the steam ionization bath, the clay layer or the silt layer in the contaminated soil is slowly agitated about 10 to 30 times per minute. Even if the mixture is mixed with natural earth and stone naturally, the coefficient of permeability can be adjusted automatically.
  • harmful gases such as volatile organic compounds (VOCS) and petroleum hydrocarbons, which are generated in the treatment process using the steam ionization tank of the present application, are sent to the exhaust gas purifying apparatus by using a pipe or a duct facility.
  • the gas purifier is provided with a filler layer in the scrubber structure at the center, sends exhaust gas from the lower part of the adsorption column, and supplies the advanced oxidation treatment solution from the upper part of the adsorption tower.
  • a system in which the solution for oxidation treatment meets and is purified may be applied.
  • FIG. 1 is a process diagram showing an embodiment of an application of a treatment system in which the technical idea of the present application is implemented in a side view format.
  • hopper storage tanks 1, 2 (10-1, 10-) by collecting the restoration object 1 contaminated with oil by using a fork lane or the like.
  • the lower part of the hopper storage tank has a metering unit (10a) to control the flow rate, for example, when the processing capacity is set to 5 tons / batch, transfer the weighed restoration object suitable for the processing capacity transfer conveyor 1 (11) and transfer conveyor 2 (12) is sent to the screen tank 20, in the screen tank 20, the earth and sand more than a certain granularity is sent to a separate soil storage or crusher (23) using a transfer conveyor 4 (22) to a certain granularity.
  • After being crushed may have a system that is transported back to the screen tank 20, the restoration object less than a certain granularity passing through the screen is sent to the contaminated soil reservoir 30 through the transfer conveyor 3 (21) Can be applied as
  • the screen bath 20 is not an essential component herein, and the screen bath 20 may be omitted in the process of treating the restoration object 1 provided with only soil having a certain particle size including no coarse particles.
  • the amount measured in the reservoir 10 can be transferred directly to the contaminated soil reservoir (30).
  • the function of the metering unit 10a in the hopper storage tanks 1, 2 (10-1, 10-2) of the present application is not a problem when the intrinsic permeability of the restoration target soil has 10 -8 or more,
  • a clay layer having a water permeability coefficient of 10 -14 or a silt layer having a water permeability coefficient of 10 -10 is contained in the hopper storage tank 1 (10-1) and needs to be cleaned
  • Soil or silt layer of soil or silt layer stored in hopper storage tank 2 is contained in hopper storage tank 2 such as sand (unique pitch coefficient: 10 -6 ) or gravel (unique pitch coefficient: 10 -2 ) with relatively high permeability coefficient.
  • the system is sent to the contaminated soil reservoir 2 when the contaminated soil reservoir 1 is filled with a metered amount.
  • the restoration object (1) which can be applied and stored in the contaminated soil reservoir in a metered amount, is sent to a steam ionization tank for processing, and a plurality of steam ionization tanks are also provided so that one steam ionization tank performs a steaming process.
  • Another steam ionization bath is preferably provided to enjoy the efficiency of performing a continuous process while performing the process of inflow or outflow.
  • a steam ion desorption tank 50 ′ in which a restoration object 1 stored in a quantity measured in a contaminated soil reservoir 1 30 is not covered with a lid. It can be directly injected into the furnace, the steam ionization tank (50 ') has a stirring function to stir the restoring object is built into the screw type agitator 52, the body side wall or bottom to supply the external steam It has a pipe 54 and the air supply pipe 55, the bottom portion is provided in a structure having a discharge chute 53 for discharging the contents, to restore the object to be stored in one batch amount in the contaminated soil reservoir (30)
  • the steam lid process is performed after the upper lid part 56 is covered, as shown in the form of the steam ionization bath 1 50 shown on the left side.
  • the steaming process is performed at a high pressure in the range of 1.1 to 3.5 kgf / cm 2 rather than the normal pressure, so that the oil component desorption efficiency is high, so that the elastic material is packed between the steam ionizer tank 51 and the lid 56.
  • This interpolation is preferably in the form of an autoclave, and is supplied by a high temperature and high pressure steam to the restoration object through a steam supply pipe 54 provided at the side or bottom of the steam ion elimination tank 1 (50) to warm and After performing the poultice process for a time by blowing air strongly through the air supply pipe 55 provided on the side or bottom of the steam ionization tank 50, the oil component detached from the restoration object with air, The purified soil from which oil components are separated through the duct 57 is sent to the exhaust gas purifier 40, and an open chute 53 provided at the bottom of the steam ionization tank is opened.
  • Geometry shows an outline of a system that can be carried in a loading box 60 or a transport vehicle and transported to a restored soil fill.
  • Figure 2 is intended to show one application of the steam ionization bath 50 applicable here, Figure 2 shows a front perspective view to show the internal structure of the steam ionization bath, Figure 3 shows a side perspective view. .
  • Steam ionization bath 50 body 51 is presented as an application example of the stirring device comprising a screw type stirring shaft (52a) and stirring blade (52b) includes a motor (M) and a reducer (52c) ( 52, a means for stirring the restoration object, and to supply the external steam to the side wall or bottom of the body, the steam supply valve 54, the steam supply to the inside of the body 51 to the outside of the body 51 It has an air supply nozzle 55a on the inside of the body 51 and an air supply valve 55 outside the body 51 so as to supply air to the steam ionization tank at the same time with the nozzle 54a.
  • Steam ionization bath 50 may be provided in a structure having an open chute 53 for discharging the water.
  • FIG. 3 one steam supply nozzle 54a and one air supply nozzle 55a are shown at each side, but as can be seen from FIG. 2, the steam supply nozzle 54a and the air supply nozzle 55a are plural. It can be provided alternately with each other, and looking at the function of the operation in detail, after receiving the restoration object stored in the contaminated soil reservoir 30 into the steam ion elimination tank (50) exhaust gas discharge duct (The upper lid part 56 connected to the 57 is closed, and the steam supply valve 54 of the bottom part or the side part is slowly stirred by using the stirring device 52 inside the body 51 of the steam ion elimination tank 50. Hot steam is supplied through the steam nozzle 54a and the restoration object is heated.
  • the temperature measured at the temperature measuring point 58a in the steam ionization bath 50 is supplied to the temperature gauge 58. Up to 90 ° C
  • the pressure regulating valve 57a of the exhaust gas exhaust duct 57 is open, and it is confirmed that the temperature measured at the temperature measuring point 58a exceeds 90 ° C or more to the temperature gauge 58, the exhaust gas exhaust duct
  • the pressure regulating valve 57a of the 57 is closed and, for example, the pressure gauge 57b is warmed up to 1.5 kgf / cm 2, and then the steam supply valve 54 is closed, and the high temperature and high pressure is about 10 to 30 minutes.
  • the poultice process is performed to give the poultice effect to the oil contaminants attached to the restoration object by maintaining the state.
  • the pressure control valve 57a is opened and the air supply valve 55 is also opened to restore the air to the air supply unit through the air nozzle 55a. It can be applied as an operation method that desorbs the oil component attached to the object and sends it together with air to the exhaust gas purifier.
  • the steam ionization tank of the present application has a large amount of restoration targets, and when it is largely manufactured, a heating means selected from a heating coil, an infrared heater, or a carbon coating is added to the sidewall or the inside of the steam ionization tank to rapidly warm the restoration target.
  • a heating coil 51a is embedded in the inner wall of the body 51 of the steam ion elimination tank 50 and / or the conductive carbon thin film layer 51b is coated and heated.
  • the structure may be achieved, and in order to further increase the heating effect, an infrared heating device may be added to the lid portion or the wall surface, and a heating means selected from them may be added and used.
  • Figure 4 is to show an example of the application of the exhaust gas purification apparatus for treating harmful gases such as volatile organic compounds (VOCS) or petroleum-based hydrocarbons generated in the steam ionization tank during the soil soil process of the present application, Volatile Organic Compounds (VOCS) and petroleum hydrocarbons contained in the soil to be restored are separated from the soil, and the exhaust gas discharged together with the air passes through the exhaust gas purification device through the exhaust duct.
  • harmful gases such as volatile organic compounds (VOCS) or petroleum-based hydrocarbons generated in the steam ionization tank during the soil soil process of the present application
  • Exhaust gas purification device 40 is the exhaust gas is adsorbed in the solution for advanced oxidation treatment can be applied to the system to clean the harmful gas, inside the adsorption tower 41, the porous partition 42 makes a bottom tray
  • the filler layer 43 such as gravel or activated carbon media, is laminated on the upper portion thereof, and a highly oxidizing solution 44 flows into the bottom inlet S.
  • the upper inlet G has a configuration in which the exhaust gas connected to the exhaust gas discharge duct 57 of the steam ion elimination tank of the present application enters the upper inlet G, thereby providing a high altitude in the exhaust gas purifying apparatus 40 of the present application.
  • the oxidation treatment solution 44 is pumped to the nozzle injection port 45 on the upper side of the adsorption tower 41 using the pump P.
  • the nozzle injection port 45 sprays the advanced oxidation treatment solution 44 and steam ionization tank.
  • the generated active hydroxyl radicals (.OH) adsorb / remove volatile organic compounds (VOCS), petroleum hydrocarbons, and the like in the exhaust gas.
  • the advanced oxidation treatment solution 44 usable herein is diluted with hydrogen peroxide by diluting liquid hydrogen peroxide and iron chloride (FeCl 2 ⁇ 4H 2 O) or iron sulfate (FeSO 4 ⁇ 7H 2 O) having a concentration of 30 to 34% by weight in about twice the water.
  • FeCl 2 ⁇ 4H 2 O iron chloride
  • FeSO 4 ⁇ 7H 2 O iron sulfate
  • VOCS Volatile organic compounds
  • petroleum hydrocarbons are adsorbed or come into contact with the finely sprayed highly oxidized solution through the reaction mechanism of [Fe 2+ + H 2 O 2 ⁇ Fe 3+ + OH- + ⁇ OH].
  • the purified exhaust gas which is highly oxidized at a very high rate and has no harmful gas or dust emission is produced. Is discharged to the direction of the arrow indicates that the exhaust gas purification system in which discharged via the chimney 46 can be applied.
  • Table 1 division Condition TPH (mg / kg) In case of injecting only heating and air without steaming process 4% raw material 25,600 How to airate while warming up to 80 °C 2580 How to airate while warming up to 100 °C 1540 Method of airation while warming up to 150 °C 1460 When infusing air after performing the steaming process Method of airation after aging for 30 minutes after warming up to 80 °C 1310 Method of airation after aging for 30 minutes after warming up to 100 °C 458 Method of airation after aging for 30 minutes after warming up to 150 °C 331
  • TPH total hydrocarbon

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

Abstract

L'invention porte sur une méthode de traitement de sols contaminés comprenant un processus de nettoyage à la vapeur, sur l'appareil associé, et plus particulièrement sur une telle méthode de restauration de sols contaminés par du pétrole déchargés sous forme de limon. Le processus de nettoyage à la vapeur abaisse la viscosité des composants pétroliers, les désorbe et permet de les recueillir dans la partie supérieure de l'appareil soumise à un puissant courant d'air qui les disperse vers le haut et les transfert dans une conduite. L'invention porte également sur l'appareil à cet effet. La présente application dévoile une idée technique concernant une méthode de restauration de sols contaminés selon laquelle les moyens utilisés recueillent les objets à restaurer et les traitent dans un réservoir de désorption par de la vapeur à haute température. Ledit réservoir comporte un corps extérieur muni de moyens d'apport de vapeur et d'air et une partie intérieure munie de moyens brassant les objets contaminés introduits tandis que la vapeur à haute température est injectée pendant 10 à 30 minutes et que la pression intérieure passe de 1,1 à 3,5 kgf/cm2, pour une pression atmosphérique de 1,01325 kgf/cm2, afin de préparer les conditions facilitant la désorption. Puis un puissant courrant d'air est immédiatement injecté pour provoquer la désorption des composants pétroliers, qui, une fois désorbés, sont évacués dans l'air extérieur.
PCT/KR2010/003208 2009-05-22 2010-05-20 Méthode de traitement de sols contaminés comprenant un processus utilisant de la vapeur, et appareil associé WO2010134775A2 (fr)

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KR10-2009-0045151 2009-05-22
KR1020090045151A KR100928739B1 (ko) 2009-05-22 2009-05-22 스팀찜질 공정을 포함하는 오염토양의 처리방법 및 그 장치

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WO2010134775A2 true WO2010134775A2 (fr) 2010-11-25
WO2010134775A3 WO2010134775A3 (fr) 2011-03-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112872006A (zh) * 2021-01-15 2021-06-01 郭文静 一种土壤修复用热解吸修复装置
CN115156276A (zh) * 2022-07-08 2022-10-11 安徽省通源环境节能股份有限公司 一种以过热蒸汽热脱附为主的复合工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101304345B1 (ko) * 2011-02-07 2013-09-26 신강하이텍(주) 오염토양 정화방법

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KR100881756B1 (ko) * 2007-10-15 2009-02-06 주식회사 성우지오텍 펜턴반응의 고도산화공법을 이용한 배기가스 정화방법 및 정화장치

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KR100401170B1 (ko) * 2001-04-24 2003-11-12 아름다운 환경건설(주) 오염 토양 복원시스템
JP2006055679A (ja) * 2004-08-17 2006-03-02 Kogi Corp 揮発性有機化合物に汚染された土壌を効率的に浄化する方法。
JP2006198549A (ja) * 2005-01-21 2006-08-03 Kobelco Eco-Solutions Co Ltd 排ガス処理方法および排ガス処理設備、並びに農薬汚染物質の処理方法
KR100798763B1 (ko) * 2007-02-21 2008-01-29 주식회사 오이코스 유류오염 토양정화를 위한 지중 열탈착 방법과 장치
KR100881756B1 (ko) * 2007-10-15 2009-02-06 주식회사 성우지오텍 펜턴반응의 고도산화공법을 이용한 배기가스 정화방법 및 정화장치
KR100870909B1 (ko) * 2008-04-01 2008-11-28 금광개발 주식회사 유류에 오염된 토사석의 복원방법 및 그 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112872006A (zh) * 2021-01-15 2021-06-01 郭文静 一种土壤修复用热解吸修复装置
CN115156276A (zh) * 2022-07-08 2022-10-11 安徽省通源环境节能股份有限公司 一种以过热蒸汽热脱附为主的复合工艺

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WO2010134775A3 (fr) 2011-03-03

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