CN114833186B - Thermal desorption combined combustion treatment method for soil organic pollutants - Google Patents
Thermal desorption combined combustion treatment method for soil organic pollutants Download PDFInfo
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- CN114833186B CN114833186B CN202210319813.1A CN202210319813A CN114833186B CN 114833186 B CN114833186 B CN 114833186B CN 202210319813 A CN202210319813 A CN 202210319813A CN 114833186 B CN114833186 B CN 114833186B
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- soil
- combustion treatment
- organic matter
- combustion
- thermal desorption
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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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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)
Abstract
The invention relates to a thermal desorption combined combustion treatment method of soil organic pollutants, which comprises a combustion treatment tank, wherein high-load organic matter polluted soil is filled in the combustion treatment tank, low-load organic matter polluted soil is arranged below the combustion treatment tank, and a heat conduction device and an exhaust device for connecting the high-load organic matter polluted soil and the low-load organic matter polluted soil are arranged in the combustion tank; and introducing air or oxygen into the high-load organic matter polluted soil and igniting the high-load organic matter polluted soil, and leading heat generated by combustion of the combustion treatment tank into the low-load organic matter soil by the heat conducting device so that the organic matter enters the combustion treatment tank for combustion through the air conducting device after thermal desorption. According to the invention, the high-load organic matter polluted soil is subjected to combustion treatment, the heat of combustion is introduced into the low-load organic matter polluted soil for thermal desorption, and the thermally desorbed organic matter is introduced into the combustion treatment pool for combustion, so that the soil quantity of the combustion treatment is reduced, and the problem of high energy consumption of thermal desorption is solved.
Description
Technical Field
The invention relates to a thermal desorption combined combustion treatment method for soil organic pollutants.
Background
Most organic matters have combustibility and volatility, and a combustion method, a catalytic combustion method and thermal desorption are effective methods for removing organic pollutants in soil. Unfortunately, the combustion method usually calcines the soil several times at 600 to 1200 ℃, the soil loses the original physical properties after being calcined and cannot be utilized, and the combustion method usually needs to be treated in different places and is difficult to use on large-scale soil. And thermal desorption needs to inject a large amount of energy into the soil, so that the energy consumed in large-scale soil treatment is huge and cannot be born.
Disclosure of Invention
The invention aims to provide a method for thermal desorption combined combustion treatment of soil organic pollutants, which reduces the treatment capacity of soil combustion and reduces the energy consumption.
The thermal desorption combined combustion treatment method for the soil organic pollutants comprises a combustion treatment tank, wherein high-load organic pollutant contaminated soil is filled in the combustion treatment tank, low-load organic pollutant contaminated soil is arranged below the combustion treatment tank, and a heat conduction device and an exhaust device for connecting the high-load organic pollutant contaminated soil and the low-load organic pollutant contaminated soil are arranged in the combustion treatment tank; and introducing air or oxygen into the high-load organic matter polluted soil and igniting the high-load organic matter polluted soil, and leading heat generated by combustion of the combustion treatment tank into the low-load organic matter soil by the heat conducting device so that the organic matter enters the combustion treatment tank for combustion through the air conducting device after thermal desorption.
Further, the processing method comprises the following steps:
(1) Digging a polluted site, namely digging out soil on the upper layer of the polluted site and soil polluted by high-load organic matters to form a combustion treatment pool;
(2) A heat conduction device and an exhaust device for connecting the low-load organic matter polluted soil below the combustion treatment pool are driven into the high-load organic matter polluted soil;
(3) Backfilling high-load organic pollutant soil above the support frame;
(4) A ventilation well is arranged on one side of the pit, and an exhaust well is arranged on the other side of the pit opposite to the ventilation well, wherein the ventilation well is used for introducing air or oxygen into the high-load organic matter polluted soil;
(5) Continuously introducing air or oxygen into the high-load organic matter polluted soil, and igniting the organic matter through a remote ignition device arranged in the pit;
(6) After the combustion of the high-load organic matters is finished, continuing to introduce air for a period of time.
Further, the upper surface of the combustion treatment tank is provided with a sealing film, and the ventilation well and the exhaust well are connected with the fan through a pipeline.
Further, the device also comprises a metal support frame, wherein the metal support frame is connected with the heat conduction device, and the high-load organic matter polluted soil is backfilled above the metal support frame.
Further, the heat conduction device is a metal heat conduction column.
Further, a plurality of miniature air holes are formed in the surface of the metal heat conduction column, and an air guide channel is formed in the metal heat conduction column.
The exhaust device is an exhaust pipe, and the surface of the exhaust pipe is provided with a plurality of miniature ventilation holes.
Further, the metal heat conduction column is arranged at the center of the adjacent exhaust pipes.
Further, the device also comprises an aeration pipe, wherein the aeration pipe is buried at the bottom of the low-load organic matter polluted soil or/and two sides of the metal heat conduction column, and high-pressure air is introduced into the aeration pipe.
Further, the exhaust pipe is connected with the exhaust fan through a pipeline, and organic pollutants are mixed with air after being extracted and injected into the combustion treatment tank through a pipeline for combustion treatment.
The beneficial effects of the invention are as follows:
(1) The invention distinguishes the soil of the polluted site, digs out a large amount of soil accumulated by organic matters, namely high-load organic matter polluted soil, backfills the soil above the low-load organic matter polluted soil, introduces air or oxygen for combustion treatment, introduces heat generated by combustion of the high-load organic matter into the low-load organic matter polluted soil to cause thermal desorption, introduces the organic matters after thermal desorption into the high-load organic matter polluted soil through the exhaust device for combustion, and only causes the high-load organic matter polluted soil to carry out combustion treatment, thereby reducing the unavailable soil quantity and obviously reducing the energy required to be injected for thermal desorption.
(2) In the specific embodiment of the invention, the device also comprises an aeration pipe, wherein the aeration pipe injects common air or hot air into the low-load soil to generate pressure difference between the exhaust pipe and the low-load organic matter polluted soil, the exhaust pipe can be connected with the air suction fan to form negative pressure, so that gas flows in the low-negative pressure organic matter polluted soil, and the volatilization of the organic matters is further accelerated through interaction with thermal desorption, so that the organic matters in the low-negative pressure organic matter polluted soil quickly enter the high-load organic matter polluted soil through the exhaust pipe to be burnt.
Drawings
FIG. 1 is a schematic diagram of example 1 of the present invention;
FIG. 2 is a schematic illustration of a thermally conductive metal column;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of example 2 of the present invention;
FIG. 5 is a schematic layout of the metal heat conduction column, the exhaust pipe and the aeration pipe.
Reference numerals illustrate: 1. a combustion treatment tank; 2. high-load organic matter polluted soil; 3. low-load organic matter polluted soil; 4. a metal heat conduction column; 5. an exhaust pipe; 6. a pipe; 7. an ignition device; 8. a sealing film; 9. a thermal insulation layer; 10. a sealing layer; 11. a blower; 12. a metal support frame; 13. ventilation holes; 14. an exhaust passage; 15. an aeration pipe; 16. a ventilation well; 17. and an exhaust well.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 5, the thermal desorption combined combustion treatment method of soil organic pollutants comprises a combustion treatment tank 1, wherein high-load organic pollutant soil 2 is filled in the combustion treatment tank 1, low-load organic pollutant soil 3 is arranged below the combustion treatment tank 1, and a heat conduction device and an exhaust device for connecting the high-load organic pollutant soil 2 and the low-load organic pollutant soil 3 are arranged in the combustion treatment tank; air or oxygen is introduced into the high-load organic matter polluted soil 2 and is ignited, and the heat generated by the combustion of the combustion treatment tank 1 is introduced into the low-load organic matter polluted soil 3 by the heat conducting device so that the organic matter enters the combustion treatment tank 1 for combustion after thermal desorption through the exhaust device. The method can be used for in-situ or ex-situ treatment of combustible organic matter polluted soil, in some embodiments, when the ex-situ treatment is carried out, the polluted soil is divided into high-load organic matter polluted soil 2 and low-load organic matter polluted soil 3 containing a large amount of organic matters through soil pollution condition investigation, the polluted soil is dug out and piled up respectively, a pit is formed by digging a selected place, the low-load organic matter polluted soil 3 is filled into the pit, a heat conducting device and an exhaust device are arranged, the high-load organic matter polluted soil 2 is filled above the low-load organic matter polluted soil 3 and connected with the exhaust device, the oxygen-containing gas is introduced into the high-load organic matter polluted soil 2, the organic matters are ignited by a remote ignition device 7, heat is generated after the organic matters are combusted, the organic matters in the low-load organic matter polluted soil 3 are led into the low-load organic matter polluted soil 3 through the heat conducting device, and the organic matters in the low-load organic matter polluted soil 3 are led into a combustion treatment pool through the exhaust device for combustion.
In the above embodiment, the in-situ processing specifically includes the following steps:
(1) Digging a polluted site, namely digging out upper soil and high-load organic matter polluted soil of the polluted site to form a combustion treatment pool 1, wherein low-load organic matter polluted soil 3 is arranged below the combustion treatment pool 1 after the high-load organic matter polluted soil is dug out, and the upper soil is also low-load organic matter polluted soil which can be backfilled below the combustion treatment pool 1;
(2) Driving a heat conduction device and an exhaust device for connecting the high-load organic matter polluted soil 2 into the low-load organic matter polluted soil 3 below the combustion treatment tank 1;
(3) Backfilling high-load organic pollutant soil above the support frame;
(4) A ventilation well 16 is arranged on one side of the pit, an exhaust well 17 is arranged on the other side of the pit opposite to the ventilation well 16, the ventilation well 16 is used for introducing air or oxygen into the high-load organic matter polluted soil 2, and the exhaust well 17 is used for guiding out tail gas after combustion treatment;
(5) Continuously introducing air or oxygen into the high-load organic matter polluted soil 2, and igniting the organic matters through a remote ignition device 7 arranged in the pit;
(6) And after the combustion of the high-load organic matter polluted soil is finished, continuing to introduce air for a period of time.
In the above embodiment, the remote ignition device 7 in the step (5) may be a remotely controlled arc ignition device 7, and the combustion treatment includes high temperature combustion, catalytic combustion, smoldering combustion, or the like.
In the above embodiment, referring to fig. 1, the upper surface of the combustion treatment tank is provided with a sealing film 8, a heat insulating layer 9 is provided below the sealing film 8, and a ventilation well 16 and an exhaust well 17 are connected to the blower 11 through a pipe 6. In this embodiment, the sealing film 8 is used to prevent the gas of combustion treatment from being discharged through the surface of soil body, the heat insulating layer 9 is used to prevent the heat generated by the combustion treatment pool 1 from being lost through the surface of soil body and damaging the sealing film 8, the ventilation well 16 is connected with the blower or the air compressor to provide positive pressure, the ventilation well 17 can be connected with negative pressure such as a pumping blower, the ventilation well 17 is connected with the tail gas purifying device such as an activated carbon adsorption device or a plasma treatment device, and the ventilation well 17 and the wellhead of the ventilation well 16 can be subjected to sealing treatment such as setting the sealing layer 10 to prevent pressure loss.
In the above embodiment, referring to fig. 1, the device further includes a metal support frame 12, where the metal support frame 12 is connected to the heat conducting device, and the high-load organic contaminated soil 2 is backfilled above the metal support frame 12. The metal support frame 12 comprises a metal plate surface and supporting feet, the heat conducting device can be integrally formed with the metal support frame or connected in a fastening mode such as a bolt, and ventilation holes are formed in the metal plate surface.
Referring to fig. 1, 2 and 3, in embodiment 1, the heat conduction device and the exhaust device are integrated, and include a metal heat conduction column 4, a plurality of air holes 13 are formed on the surface of the metal heat conduction column 4, a retaining net may be disposed outside the air holes 13, an exhaust channel 14 is disposed inside the metal heat conduction column 4, and the exhaust channel 14 may be filled with a porous material. The metal heat-conducting column 4 guides the heat in the combustion treatment tank 1 to the low-load organic matter polluted soil 3, and the organic matter enters the exhaust channel 14 through the surface of the metal heat-conducting column 4 after being heated and volatilized, and enters the combustion treatment tank 1 along the exhaust channel 14 to participate in the combustion reaction.
Referring to fig. 4 and 5, in embodiment 2, the heat conduction device is a metal heat conduction column 4, the exhaust device is an exhaust pipe 5, and the surface of the exhaust pipe 5 has a plurality of ventilation holes 13. The metal heat conductive pillars 4 are provided at the centers of the adjacent exhaust pipes 5. The effect is to make the soil heated more evenly and is favorable for exhaust.
In the above embodiment 1 or 2, referring to fig. 1 and 4, the apparatus further comprises an aeration pipe 15, the aeration pipe 15 is buried at the bottom of the low-load organic matter contaminated soil 3 or/and at both sides of the metal heat conduction column 4, a plurality of ventilation holes 13 are provided on the surface of the aeration pipe 15, normal air or hot air having a certain pressure can be introduced into the aeration pipe 15, when the heat generated in the combustion treatment tank 1 is sufficient, normal air can be introduced, when the heat generated in the combustion treatment tank 1 is insufficient, hot air having a certain temperature can be introduced to enable thermal desorption of the organic matter in the soil to proceed smoothly, and the hot air can be realized by providing a heating pipe in the pipe 6. The aeration pipe 15 can generate positive pressure in the soil, so that air flows after entering the soil body from the aeration pipe 15, the volatilization of organic matters can be promoted while the air flows, the air enters the combustion treatment pool 1 from the exhaust pipe 5, the thermal desorption of the soil organic matters is accelerated, the aeration pipe 15 is buried at two sides of the metal heat-conducting column 4, the heat of the metal heat-conducting column 4 can be conveyed into the soil body through the air flow, the heat transfer efficiency is accelerated, and the thermal desorption effect of the organic pollutants is improved.
In the above embodiment 2, referring to fig. 4, the exhaust pipe 5 is connected to the exhaust fan through a pipe, and after the organic pollutant is extracted, the exhaust fan is mixed with air and then injected into the combustion treatment tank 1 through the pipe for combustion treatment, and the exhaust fan is connected to the exhaust pipe 5, so that the gas in the soil body is extracted to form vacuum negative pressure, the gas flow in the soil body is accelerated, and the desorption speed is improved, so that the organic pollutant in the soil body is discharged at a faster speed.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. A thermal desorption combined combustion treatment method for soil organic pollutants is characterized by comprising the following steps of: the method comprises the following steps:
(1) Digging a polluted site, namely digging out soil on the upper layer of the polluted site and soil polluted by high-load organic matters to form a combustion treatment pool;
(2) A heat conduction device and an exhaust device for connecting the low-load organic matter polluted soil below the combustion treatment pool are driven into the high-load organic matter polluted soil;
(3) Backfilling high-load organic pollutant soil above the support frame;
(4) A ventilation well is arranged on one side of the pit, and an exhaust well is arranged on the other side of the pit opposite to the ventilation well, wherein the ventilation well is used for introducing air or oxygen into the high-load organic matter polluted soil;
(5) Continuously introducing air or oxygen into the high-load organic matter polluted soil, igniting the organic matters by a remote ignition device arranged in the pit, and leading heat generated by combustion of the combustion treatment tank into the low-load organic matter soil by the heat conduction device so that the organic matters are thermally desorbed and then enter the combustion treatment tank for combustion by the air guide device;
(6) After the combustion of the high-load organic matters is finished, continuing to introduce air for a period of time.
2. The thermal desorption combined combustion treatment method for soil organic pollutants according to claim 1, wherein the method comprises the following steps of: the upper surface of the combustion treatment tank is provided with a sealing film, and the ventilation well and the exhaust well are connected with the fan through pipelines.
3. The thermal desorption combined combustion treatment method for soil organic pollutants according to claim 1, wherein the method comprises the following steps of: the soil backfilling device is characterized by further comprising a metal support frame, wherein the metal support frame is connected with the heat conduction device, and high-load organic matter polluted soil is backfilled above the metal support frame.
4. The thermal desorption combined combustion treatment method for soil organic pollutants according to claim 1, wherein the method comprises the following steps of: the heat conduction device is a metal heat conduction column.
5. The thermal desorption combined combustion treatment method for the organic pollutants in soil, which is characterized by comprising the following steps of: the surface of the metal heat conduction column is provided with a plurality of miniature air holes, and an air guide channel is arranged in the metal heat conduction column.
6. The thermal desorption combined combustion treatment method for the organic pollutants in soil, which is characterized by comprising the following steps of: the exhaust device is an exhaust pipe, and the surface of the exhaust pipe is provided with a plurality of miniature ventilation holes.
7. The thermal desorption combined combustion treatment method for soil organic pollutants according to claim 6, wherein the method comprises the following steps of: the metal heat conduction column is arranged at the center of the adjacent exhaust pipes.
8. The thermal desorption combined combustion treatment method for soil organic pollutants according to claim 7, wherein the method comprises the following steps of: the device also comprises an aeration pipe, wherein the aeration pipe is buried at the bottom of the low-load organic matter polluted soil or/and the two sides of the metal heat conduction column, and high-pressure air is introduced into the aeration pipe.
9. The thermal desorption combined combustion treatment method for the organic pollutants in soil, which is characterized by comprising the following steps of: the exhaust pipe is connected with the exhaust fan through a pipeline, and organic pollutants are mixed with air after being extracted and injected into the combustion treatment tank through a pipeline for combustion treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210319813.1A CN114833186B (en) | 2022-03-29 | 2022-03-29 | Thermal desorption combined combustion treatment method for soil organic pollutants |
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| CN202210319813.1A CN114833186B (en) | 2022-03-29 | 2022-03-29 | Thermal desorption combined combustion treatment method for soil organic pollutants |
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| CN114833186B true CN114833186B (en) | 2023-08-11 |
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| CN116000072A (en) * | 2022-12-30 | 2023-04-25 | 北京建工环境修复股份有限公司 | Contaminated soil or solid waste heap type thermal desorption restoration system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140801A (en) * | 2015-04-03 | 2016-11-23 | 中石化洛阳工程有限公司 | A kind of restorative procedure of organic material contaminated soil |
| CN106216382A (en) * | 2016-08-22 | 2016-12-14 | 上海守安高达土壤处理技术有限公司 | A kind of energy-efficient organic polluted soil thermal desorption processing system and method |
| CN108714621A (en) * | 2018-05-23 | 2018-10-30 | 昆明理工大学 | A kind of thermal desorption handles the method and system of organic polluted soil and desorption exhaust-gas treatment |
| CN111014268A (en) * | 2019-12-26 | 2020-04-17 | 天津大学 | Thermal remediation system for organic matter contaminated soil through two-phase transformation thermal treatment |
| CN111174619A (en) * | 2020-02-18 | 2020-05-19 | 广西博世科环保科技股份有限公司 | Thermal desorption combined use and waste heat recycling method and system adopted by same |
| CN113319113A (en) * | 2021-05-17 | 2021-08-31 | 太原理工大学 | Thermal desorption device and process for organic contaminated soil |
-
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- 2022-03-29 CN CN202210319813.1A patent/CN114833186B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140801A (en) * | 2015-04-03 | 2016-11-23 | 中石化洛阳工程有限公司 | A kind of restorative procedure of organic material contaminated soil |
| CN106216382A (en) * | 2016-08-22 | 2016-12-14 | 上海守安高达土壤处理技术有限公司 | A kind of energy-efficient organic polluted soil thermal desorption processing system and method |
| CN108714621A (en) * | 2018-05-23 | 2018-10-30 | 昆明理工大学 | A kind of thermal desorption handles the method and system of organic polluted soil and desorption exhaust-gas treatment |
| CN111014268A (en) * | 2019-12-26 | 2020-04-17 | 天津大学 | Thermal remediation system for organic matter contaminated soil through two-phase transformation thermal treatment |
| CN111174619A (en) * | 2020-02-18 | 2020-05-19 | 广西博世科环保科技股份有限公司 | Thermal desorption combined use and waste heat recycling method and system adopted by same |
| CN113319113A (en) * | 2021-05-17 | 2021-08-31 | 太原理工大学 | Thermal desorption device and process for organic contaminated soil |
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