CN115055507A - Thermal desorption system for organic contaminated soil - Google Patents
Thermal desorption system for organic contaminated soil Download PDFInfo
- Publication number
- CN115055507A CN115055507A CN202210890534.0A CN202210890534A CN115055507A CN 115055507 A CN115055507 A CN 115055507A CN 202210890534 A CN202210890534 A CN 202210890534A CN 115055507 A CN115055507 A CN 115055507A
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- Prior art keywords
- rotary kiln
- contaminated soil
- fluidized bed
- gas outlet
- combustion furnace
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- 239000002689 soil Substances 0.000 title claims abstract description 63
- 238000003795 desorption Methods 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 239000007787 solid Substances 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000010419 fine particle Substances 0.000 abstract description 7
- 239000011362 coarse particle Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 46
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 239000003546 flue gas Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000012855 volatile organic compound Substances 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/08—Rotary-drum furnaces, i.e. horizontal or slightly inclined externally heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/34—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a thermal desorption system for organic contaminated soil, and relates to the technical field of thermal desorption of organic contaminated soil. The device comprises a feeding module, a rotary kiln module, a fluidized bed combustion furnace, a cyclone separator and an ash cone valve, wherein the fluidized bed combustion furnace is connected with the rotary kiln module. The invention realizes the composite heating mode of inner side direct heating and outer side indirect heating by adopting the double coupling reaction design of the rotary kiln module and the fluidized bed combustion furnace, thereby effectively improving the treatment efficiency of the organic contaminated soil; by carrying out energy gradient utilization on the treated high-temperature soil particles, the coarse-particle soil is directly contacted with air in the moving bed heat exchanger for heat exchange, and the fine-particle soil is directly contacted with the primary organic contaminated soil in the rotary kiln for heat exchange, so that the treatment cost of unit soil is effectively reduced; through adjusting grey cone valve aperture, can change the high temperature soil quality who gets into first rotary kiln and second rotary kiln to adapt to the organic contaminated soil of different properties, effectively improved the adaptability of equipment.
Description
Technical Field
The invention relates to the technical field of thermal desorption of organic contaminated soil, in particular to a thermal desorption system of organic contaminated soil.
Background
With the development of industry and agriculture, the acceleration of urbanization process and the adjustment of industrial structure, a large number of polluted enterprises relating to industries such as chemical industry, metallurgy, petroleum, transportation, light industry and the like are moved or closed in sequence, volatile organic pollutants exist in soil of a site left by the movement of a plurality of industrial enterprises, and in the process of re-development and utilization, volatile and semi-volatile pollutants in the soil can enter other environment media through air-soil circulation and water-soil circulation and can also directly enter human bodies through food chains or human breath to harm human health.
The thermal desorption technology is widely applied to repairing soil polluted by volatile/semi-volatile organic compounds, the soil is heated to 600 ℃ at 300 ℃, and pollutants such as benzene series, pesticides, polycyclic aromatic hydrocarbons, non-chlorinated volatile/semi-volatile organic compounds and the like in the soil can be effectively removed;
however, how to improve the energy utilization efficiency of the thermal desorption system, improve the treatment efficiency of the organic contaminated soil, and reduce the treatment cost per unit soil is an important technical bottleneck for the popularization and application of the technology.
At present, two main thermal desorption systems are provided for organic contaminated soil, one is a direct thermal desorption system, namely, hot flue gas is adopted, heat is usually derived from combustion of natural gas, and the soil is directly heated to a specified temperature;
the other type is an indirect thermal desorption system, namely soil is indirectly heated through a sleeve or a hollow blade, the indirect thermal desorption system has the advantages that the treatment capacity and the treatment difficulty of tail gas are reduced, but the soil is a poor thermal conductor, so the heat exchange efficiency is lower, and meanwhile, the hollow blade is contacted with the soil in the rotation process, the abrasion is serious, and the failure rate is high. In addition, in current thermal desorption system, soil heating equipment often is the monomer, has realized whole processes such as the drying of soil, heating, strong volatile organic compounds desorption, weak volatile organic compounds desorption in a device, can't realize the difference in order to adapt to different organic contaminated soil characteristics to the hierarchical regulation and control optimization of each process.
Therefore, aiming at the defects in the prior art, the invention designs the thermal desorption system and the thermal desorption device for the organic contaminated soil.
Disclosure of Invention
The invention aims to provide a thermal desorption system for organic contaminated soil, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the thermal desorption system for the organic contaminated soil comprises a feeding module, a rotary kiln module, a fluidized bed combustion furnace, a cyclone separator and an ash cone valve, wherein the fluidized bed combustion furnace is connected with the rotary kiln module, one side of the ash cone valve is connected with the feeding module, the top end of the cyclone separator is fixedly connected with a fifth gas outlet, one side of the cyclone separator is fixedly connected with a first inlet, the bottom end of the cyclone separator is fixedly connected with a first solid outlet, the cyclone separator is connected with the fluidized bed combustion furnace through the first inlet, the bottom end of the cyclone separator is connected with the ash cone valve through the first solid outlet, and a second air blower is arranged at a fluidized medium input end of the fluidized bed combustion furnace.
Preferably, the feeding module comprises a rotary screen, a belt, a crusher and a screw feeder, the belt is arranged at the bottom end of the rotary screen, the crusher is arranged at the bottom end of one side of the belt, the screw feeder is arranged at the bottom end of the crusher, and the screw feeder is connected with the ash cone valve.
Preferably, the rotary kiln module comprises a first rotary kiln and a second rotary kiln, the first rotary kiln and the second rotary kiln are connected through ash cone valves, a first gas inlet, a first gas outlet and a second gas outlet are arranged on the outer side of the first rotary kiln, a second gas inlet, a third gas outlet and a fourth gas outlet are arranged on the outer side of the second rotary kiln, and the fourth gas outlet is connected with the first gas inlet.
Preferably, a condenser is arranged between the first gas outlet and the fluidized bed combustion furnace, the output end of the second gas outlet is connected with a quenching tower, the output end of the quenching tower is connected with a bag-type dust remover, the output end of the bag-type dust remover is connected with an induced draft fan, and the output end of the induced draft fan is connected with a chimney.
Preferably, the third gas outlet is connected to a fluidized bed combustion furnace, and the second gas inlet is connected to a fifth gas outlet.
Preferably, the discharge end of the fluidized bed combustion furnace is provided with a cross flow heat exchanger and a slag discharge valve, and the input end of the cross flow heat exchanger is provided with a first air blower.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the double coupling reaction design of the rotary kiln and the fluidized bed to realize the composite heating mode of inner side direct heating and outer side indirect heating, thereby effectively improving the treatment efficiency of the organic contaminated soil.
2. According to the invention, the energy gradient utilization is carried out on the treated high-temperature soil particles, the coarse-particle soil is directly contacted with air in the moving bed heat exchanger for heat exchange, and the fine-particle soil is directly contacted with the primary organic contaminated soil in the rotary kiln for heat exchange, so that the treatment cost of unit soil is effectively reduced.
3. According to the invention, the quality of the high-temperature soil entering the first rotary kiln and the second rotary kiln can be changed by adjusting the opening degree of the ash cone valve, so that the method is suitable for organic polluted soil with different properties, and the adaptability of the equipment is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the whole of the present invention.
In the figure: 1. a drum screen; 2. a belt; 3. a crusher; 4. a screw feeder; 5. a first rotary kiln; 51. a first gas inlet; 52. a first gas outlet; 53. a second gas outlet; 6. a second rotary kiln; 61. a second gas inlet; 62. a third gas outlet; 63. a fourth gas outlet; 7. a fluidized bed combustion furnace; 8. a condenser; 9. a cyclone separator; 91. a first inlet; 92. a first solids outlet; 93. a fifth gas outlet; 10. a gray cone valve; 11. a quench tower; 12. a bag-type dust collector; 13. an induced draft fan; 14. a chimney; 15. a cross-flow heat exchanger; 16. a slag discharge valve; 17. a first blower; 18. a second blower.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the thermal desorption system for organic contaminated soil comprises a feeding module, a rotary kiln module, a fluidized bed combustion furnace 7, a cyclone separator 9 and an ash cone valve 10, wherein the fluidized bed combustion furnace 7 is connected with the rotary kiln module, one side of the ash cone valve 10 is connected with the feeding module, the top end of the cyclone separator 9 is fixedly connected with a fifth gas outlet 93, one side of the cyclone separator 9 is fixedly connected with a first inlet 91, the bottom end of the cyclone separator 9 is fixedly connected with a first solid outlet 92, the cyclone separator 9 is connected with the fluidized bed combustion furnace 7 through the first inlet 91, the bottom end of the cyclone separator 9 is connected with the ash cone valve 10 through the first solid outlet 92, and a second blower 18 is arranged at a fluidized medium input end of the fluidized bed combustion furnace 7.
The feeding module comprises a rotary screen 1, a belt 2, a crusher 3 and a screw feeder 4, wherein the belt 2 is arranged at the bottom end of the rotary screen 1, the crusher 3 is arranged at the bottom end of one side of the belt 2, the screw feeder 4 is arranged at the bottom end of the crusher 3, and the screw feeder 4 is connected with a gray cone valve 10;
the diameter of the screen hole of the drum screen 1 is 10cm in the embodiment;
the rotary kiln module comprises a first rotary kiln 5 and a second rotary kiln 6, the first rotary kiln 5 and the second rotary kiln 6 are connected through an ash cone valve 10, a first gas inlet 51, a first gas outlet 52 and a second gas outlet 53 are arranged on the outer side of the first rotary kiln 5, a second gas inlet 61, a third gas outlet 62 and a fourth gas outlet 63 are arranged on the outer side of the second rotary kiln 6, and the fourth gas outlet 63 is connected with the first gas inlet 51;
a condenser 8 is arranged between the first gas outlet 52 and the fluidized bed combustion furnace 7, the condenser 8 is used for connecting the first gas outlet 52 with the fluidized bed combustion furnace 7, the discharge position of condensed sewage of the condenser 8 is connected with a sewage treatment pipe, the output end of the second gas outlet 53 is connected with a quenching tower 11, the output end of the quenching tower 11 is connected with a bag-type dust remover 12, the output end of the bag-type dust remover 12 is connected with an induced draft fan 13, and the output end of the induced draft fan 13 is connected with a chimney 14;
the third gas outlet 62 is connected with the fluidized bed combustion furnace 7, and the second gas inlet 61 is connected with the fifth gas outlet 93;
the discharge end of the fluidized bed combustion furnace 7 is provided with a cross flow heat exchanger 15 and a slag discharge valve 16, and the input end of the cross flow heat exchanger 15 is provided with a first air blower 17.
The crushed soil enters a first rotary kiln 5 through a screw feeder 4 and a part of high-temperature fine particle soil separated by an ash valve 10 to be heated, wherein the first rotary kiln 5 adopts a jacket type structure, namely high-temperature flue gas flows through a jacket;
the heated organic contaminated soil in the first rotary kiln 5 firstly undergoes a drying reaction, the generated water vapor carries part of strong volatile organic compounds to flow out from a first gas outlet 52 and enter a condenser 8 for condensation, the condensed water enters a sewage treatment plant for treatment, and the uncondensed gas enters a fluidized bed combustion furnace 7 to complete primary pretreatment;
the pretreated organic contaminated soil and the other part of the high-temperature fine-particle soil separated by the ash cone valve 10 enter a second rotary kiln 6 for heating, wherein the second rotary kiln 6 adopts a jacketed structure, namely high-temperature flue gas flows through a jacket, the high-temperature flue gas comes from a fifth gas outlet 93 of the cyclone separator 9, the flue gas of outer jackets of the first rotary kiln 5 and the second rotary kiln 6 are arranged in series, namely a fourth gas outlet 63 is connected with a first gas inlet 51;
the organic contaminated soil heated in the second rotary kiln 6 can release part of organic matters with strong volatile components and organic matters with weak volatile components, and the organic contaminated soil is discharged from a third gas outlet 62 and enters a fluidized bed combustion furnace 7;
the organic contaminated soil after thermal desorption enters a fluidized bed combustion furnace 7 for advanced treatment, the fluidized bed combustion furnace 7 adopts natural gas as fuel, the fluidizing medium of the natural gas is air discharged by a second air blower 18, and volatile organic compounds generated by thermal desorption of the organic contaminated soil are subjected to combustion reaction in the fluidized bed combustion furnace 7;
the flue gas generated by combustion carries part of fine particle soil to enter the cyclone separator 9 through the first inlet 91 for gas-solid separation, the high-temperature flue gas generated after separation is discharged from the fifth gas outlet 93 and enters the second gas inlet 61, the high-temperature fine particle soil is discharged from the first solid outlet 92, and the mass flow rate of the high-temperature fine particle soil entering the first rotary kiln 5 and the second rotary kiln 6 is adjusted through the ash cone valve 10;
the high-temperature coarse-grained soil discharged from the fluidized bed combustion furnace 7 enters the cross-flow heat exchanger 15 to directly exchange heat with air discharged from the first air blower 17, the high-temperature air after absorbing heat enters the fluidized bed combustion furnace 7 as secondary air, and the soil after releasing heat is discharged from the slag discharge valve 16 to enter a temporary storage;
in addition, the high-temperature flue gas discharged from the second gas outlet 53 enters the quenching tower 11 for extreme cooling, so that the dioxin is prevented from being resynthesized, then the flue gas enters the bag-type dust collector 12 for dust removal treatment, and the treated clean flue gas is discharged from the chimney 14 through the induced draft fan 13.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an organic contaminated soil thermal desorption system which characterized in that: comprises a feeding module, a rotary kiln module, a fluidized bed combustion furnace (7), a cyclone separator (9) and an ash cone valve (10), the fluidized bed combustion furnace (7) is connected with the rotary kiln module, one side of the ash cone valve (10) is connected with a feeding module, the top end of the cyclone separator (9) is fixedly connected with a fifth gas outlet (93), one side of the cyclone separator (9) is fixedly connected with a first inlet (91), the bottom end of the cyclone separator (9) is fixedly connected with a first solid outlet (92), the cyclone separator (9) is connected with the fluidized bed combustion furnace (7) through a first inlet (91), the bottom end of the cyclone separator (9) is connected with a gray cone valve (10) through a first solid outlet (92), the fluidized medium input end of the fluidized bed combustion furnace (7) is provided with a second air blower (18).
2. The thermal desorption system for organic contaminated soil according to claim 1, wherein: the feeding module comprises a rotary screen (1), a belt (2), a crusher (3) and a screw feeder (4), the belt (2) is arranged at the bottom end of the rotary screen (1), the crusher (3) is arranged at the bottom end of one side of the belt (2), the screw feeder (4) is arranged at the bottom end of the crusher (3), and the screw feeder (4) is connected with an ash cone valve (10).
3. The thermal desorption system for organic contaminated soil according to claim 2, wherein: the rotary kiln module comprises a first rotary kiln (5) and a second rotary kiln (6), wherein the first rotary kiln (5) and the second rotary kiln (6) are connected through an ash cone valve (10), a first gas inlet (51), a first gas outlet (52) and a second gas outlet (53) are arranged on the outer side of the first rotary kiln (5), a second gas inlet (61), a third gas outlet (62) and a fourth gas outlet (63) are arranged on the outer side of the second rotary kiln (6), and the fourth gas outlet (63) is connected with the first gas inlet (51).
4. The thermal desorption system for organic contaminated soil according to claim 3, wherein: be provided with condenser (8) between first gas outlet (52) and fluidized bed combustion furnace (7), the output of second gas outlet (53) is connected with quench tower (11), the output of quench tower (11) is connected with sack cleaner (12), the output of sack cleaner (12) is connected with draught fan (13), the output of draught fan (13) is connected with chimney (14).
5. The thermal desorption system for organic contaminated soil according to claim 4, wherein: the third gas outlet (62) is connected to the fluidized bed combustion furnace (7), and the second gas inlet (61) is connected to the fifth gas outlet (93).
6. The thermal desorption system for organic contaminated soil according to claim 5, wherein: the discharge end of the fluidized bed combustion furnace (7) is provided with a cross flow type heat exchanger (15) and a slag discharge valve (16), and the input end of the cross flow type heat exchanger (15) is provided with a first air blower (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890534.0A CN115055507A (en) | 2022-07-27 | 2022-07-27 | Thermal desorption system for organic contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890534.0A CN115055507A (en) | 2022-07-27 | 2022-07-27 | Thermal desorption system for organic contaminated soil |
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| Publication Number | Publication Date |
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| CN115055507A true CN115055507A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210890534.0A Pending CN115055507A (en) | 2022-07-27 | 2022-07-27 | Thermal desorption system for organic contaminated soil |
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| JP2001025757A (en) * | 1999-07-13 | 2001-01-30 | Nikko Co Ltd | Cleaning device for contaminated soil containing volatile organic compounds |
| AU2003204208A1 (en) * | 1998-09-28 | 2003-08-21 | Innova Soil Technology Ltd | Soil remediation system |
| JP2005120210A (en) * | 2003-10-16 | 2005-05-12 | Kubota Corp | Waste disposal by gasification and system therefor |
| JP2005270874A (en) * | 2004-03-25 | 2005-10-06 | Sumitomo Osaka Cement Co Ltd | Treatment method of polluted soil and apparatus thereof |
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| US20190358689A1 (en) * | 2018-05-23 | 2019-11-28 | Kunming University Of Science And Technology | Method and system for thermal desorption treatment of organic-contaminated soil and treatment of desorbed waste gas |
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-
2022
- 2022-07-27 CN CN202210890534.0A patent/CN115055507A/en active Pending
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Application publication date: 20220916 |