CN201659137U - Ectopic heat-strengthening extraction treatment device for contaminated soil - Google Patents

Ectopic heat-strengthening extraction treatment device for contaminated soil Download PDF

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Publication number
CN201659137U
CN201659137U CN201020039579XU CN201020039579U CN201659137U CN 201659137 U CN201659137 U CN 201659137U CN 201020039579X U CN201020039579X U CN 201020039579XU CN 201020039579 U CN201020039579 U CN 201020039579U CN 201659137 U CN201659137 U CN 201659137U
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China
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soil
heat
storehouse
treatment
stir
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CN201020039579XU
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Chinese (zh)
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赵颖
薛强
李先旺
侯长亮
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中国科学院武汉岩土力学研究所
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Abstract

The utility model relates to an ectopic heat-strengthening extraction treatment device for contaminated soil, in particular to a quick ectopic heat-strengthening extraction treatment system for soil contaminated by volatile and semi-volatile organic substances. The ectopic heat-strengthening extraction treatment device is composed of a stirring treatment device, a hot steam generating device, a gas active carbon absorption device and an automatic control device, and has the function of carrying out quick ectopic restoration on the soil contaminated by the volatile and semi-volatile organic substances by means of stirring, heating and vacuum extracting. The ectopic heat-strengthening extraction treatment device adopts a vertical ribbon stirrer to carry out stirring, so as to continuously homogenize the soil in the treatment process, enhance the permeating performance to air flow, and increase the vacuum extracting efficiency; by adopting high-temperature water vapor to heat the soil, the ectopic heat-strengthening extraction treatment device promotes thermal desorption of contaminants and leads to more thorough removing of the contaminants; moreover, the intelligent control of the treatment process optimizes such parameters as pressure and temperature in a treatment bin, so as to minimize the treatment cost. The ectopic heat-strengthening extraction treatment device has the characteristics of reasonable structure, simple operation, convenient use, low treatment cost and high treatment efficiency. The purifying degree of the contaminated soil treated by the device can be up to more than 95%.

Description

The dystopy heat of contaminated soil is strengthened the extracting treating apparatus

Technical field

The utility model relates to the dystopy heat of contaminated soil and strengthens the extracting treating apparatus, and what be specifically related to is that a kind of quick dystopy heat that is used for volatility and semi-volatile organic matter contaminated soil is strengthened the extracting treatment system, belongs to the plant equipment class.

Background technology

Along with developing rapidly of China's industrial or agricultural, all contaminations, as agricultural chemicals, oil, rubbish, industrial wastewater etc. by overflow, approach such as natural seepage, unsuitable transportation and waste disposal is discharged in air, water body and the soil.Soil is as the final home to return to of all contaminations, and accumulating in a large number of pollutant becomes one of its main pollution problem.After pollutant enters soil, not only can influence growth and development of plant and biocenological variation, cause the decline of grain yield and quality, agricultural product security is constituted a serious threat; Also can cause secondary pollution to surface water, underground water etc.Toxic pollutant enters human body through food chain, with further harm humans health.In recent years, China's soil pollution problem shows especially day by day, and ecological environment, food security and health are constituted serious threat.Therefore, repairing polluted soil has become the important topic of environmental science in recent decades.

VOC (VOCs) is a class organic pollution common in the soil, because of it has complicated component, and characteristics such as harmfulness is big, in recent years, its pollution on the environment problem has obtained paying close attention to widely.Saturated vapour pressure was greater than the organic compound of 71Pa when VOCs typically referred under normal pressure boiling point and is lower than 260 ℃ or room temperature, also had saturated vapour pressure when boiling point under the normal pressure is lower than 100 ℃ or 25 ℃ to be called VOCs greater than the organic compound of 133Pa.Volatile organic contaminant has strong volatility usually, special odor is arranged, excitant and characteristics such as toxic are arranged, and part has been listed in carcinogenic substance.Volatile organic contaminant disguise in the soil is extremely strong, easy being found unlike atmosphere and water pollution, but after suitable temperature, air pressure or soil are disturbed, can directly from soil, evaporate again, thus sucked by human body or endanger environment.

The contaminated soil recovery technique of research and development economical and efficient is to improve an urgent demand of China's environmental quality, also is the research focus of world technology.At present, at the recovery technique of volatility organic polluted soil mainly contain the steam extraction technique (Soil Vapor Extraction, SVE), thermal desorption technology, light degradation technology etc.Wherein, to have operating cost low because of it for the soil vapor extraction technique, and characteristics such as easy and simple to handle are widely used in the improvement of volatility and half volatile organic contaminant.The SVE technology adopts vavuum pump that soil is applied negative pressure, reduces the vapour pressure in the soil, with the volatilization of acceleration pollutant, and makes it to take gaseous phase of soil out of with air-flow.At present, abroad, SVE technology and deriving technology thereof have been widely used in the soil pollution improvement, and have produced corresponding corollary equipment thereupon.But these equipment major parts can only be applied in the original position steam extracting processing of soil, problems such as its ubiquity equipment cost height, treatment process complexity.And be used for the equipment that soil heterotopic is handled, then because of the reason in the design, there are problems such as function singleness, thereby have shortcomings such as treatment effeciency is low, pollutant removal is incomplete.

Summary of the invention

Problem at above-mentioned existence, the purpose of this utility model is to be to provide a kind of dystopy heat of contaminated soil to strengthen the extracting treating apparatus, this device has the function of volatility and semi-volatile organic matter contaminated soil being carried out quick dystopy reparation by stirring, heating and vacuum extraction method, and its technical solution is:

The dystopy heat of contaminated soil is strengthened the extracting treating apparatus by apparatus for kneading apparatus, the vapours generating means, the gas recycling and processing device, automaton and support (40) are formed, apparatus for kneading apparatus is by heating cabinet (16), stir process storehouse (13), vertical ribbon stirrer and motor (9) constitute, be set with heating cabinet (16) on the outer wall in stir process storehouse (13), form hollow interlayer (15) between heating cabinet (16) and stir process storehouse (13), vertical ribbon stirrer is arranged in the stir process storehouse (13), motor (9) is arranged on top, stir process storehouse (13), and be connected with the main shaft (19) of vertical ribbon stirrer, top, stir process storehouse (13) is provided with soil inlet (12), the bottom is provided with soil outlet (25), apparatus for kneading apparatus is fixedly mounted on the support (40), heating cabinet (16) bottom is provided with relief valve (17), the vapours generating means is by replenishing water tank of water (35), heating container (36), heater (37) constitutes, replenishing water tank of water (35), heating container (36) is the sealing shape, replenishing water tank of water (35) is connected to heating container (36) top by pipeline C (33), go up the fixing valve (34) that is provided with successively at pipeline C (33), water pump (32), heating container (36) is connected to heating cabinet (16) top by pipeline A (29), be provided with valve (31) on the pipeline A (29) successively, gas flowmeter (30), heating container (36) is connected to heating cabinet (16) bottom by pipeline B (23), be provided with circulating pump (24) on the pipeline B (23) successively, valve (22), heater (37) is installed in the heating container (36), the gas recycling and processing device is made of gas absorbent charcoal adsorber (1) and electrostatic precipitator (5), electrostatic precipitator (5) top is connected to gas absorbent charcoal adsorber (1) by wireway (3), be provided with gas flowmeter (4) and valve (2) on the wireway (3) successively, electrostatic precipitator (5) bottom is connected to top, stir process storehouse (13) by wireway (7), be provided with valve (6) and vavuum pump (8) on the wireway (7) successively, automaton is by computer and first temperature sensor (14) that is connected in computer, second temperature sensor (38), vacuum pressure sensor (20), electronic type liquid level gauge group (39) constitutes, wherein, first temperature sensor (14) and vacuum pressure sensor (20) are separately positioned on the inwall of stir process storehouse (13), second temperature sensor (38) is arranged on the inwall at heating container (36) top, and electronic type liquid level gauge group (39) is arranged on the madial wall of heating container (36).

Described soil inlet (12) is provided with seal cover (10) and sealing bolt (11).

Described soil outlet (25) is provided with seal cover (26) and sealing bolt (27), and seal cover (26) is provided with pressure-control valve (28).

Described vertical ribbon stirrer is made of spiral strip type stirring vane (18), agitator main shaft (19), paddle (21), and paddle (21) is fixed on the agitator main shaft (19), and spiral strip type stirring vane (18) shape in the shape of a spiral is fixed on the paddle (21).

Owing to adopted above technical scheme, the dystopy heat of contaminated soil of the present utility model is strengthened the extracting treating apparatus, have function, realized efficient, reparation fast volatility and semi-volatile organic matter contaminated soil to contaminated soil mixing stirring, Steam Heating and vacuum extraction.Have following technical characterstic and advantage:

1. vertical ribbon stirrer makes near the soil of handling bulkhead and moves upward, and the soil of handling the center, storehouse moves downward, contaminated soil formed spin upside down, break up and mix stirring action, make soil continuous homogenising in processing procedure, and strengthened its permeance property to air-flow, improved vacuum extraction efficient;

2. adopt high-temperature water vapor that soil is heated, promote the thermal desorption of pollutant, make the removal of pollutant more thorough, especially more can embody its significant repairing effect the semi-volatile organic matter contaminated soil;

3. the temperature and pressure sensor links to each other with computer, parameter values such as processing storehouse internal pressure and temperature have been optimized in the intellectuality control of processing procedure, processing cost is minimized, and the timely ruuning situation of feedback device, so that abnormal conditions are in time handled, make the normal operation of equipment obtain more sound assurance.

Apparatus structure of the present invention is reasonable, simple to operate, easy to use, processing cost is low, treatment effeciency is high, and the contaminated soil sanitation degree of wherethrough reason can reach more than 95%.

Description of drawings:

Accompanying drawing is the structural representation that the dystopy heat of the utility model contaminated soil is strengthened the extracting treating apparatus.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

The dystopy heat of contaminated soil is strengthened the extracting treating apparatus by apparatus for kneading apparatus, the vapours generating means, the gas recycling and processing device, automaton and support 40 are formed, apparatus for kneading apparatus is by heating cabinet 16, stir process storehouse 13, vertical ribbon stirrer and motor 9 constitute, stir process storehouse 13 is the core of this device, be used for splendid attire and handle contaminated soil, be set with heating cabinet 16 on its outer wall, form hollow interlayer 15 between heating cabinet 16 and the stir process storehouse 13, hollow interlayer 15 is used for the high-temperature steam that splendid attire is produced by the vapours generating means, stir process storehouse 13 is played the effect of heating, vertical ribbon stirrer is arranged in the stir process storehouse 13, motor 9 is arranged on 13 tops, stir process storehouse, vertical ribbon stirrer is by spiral strip type stirring vane 18, agitator main shaft 19, paddle 21 constitutes, paddle 21 is fixed on the agitator main shaft 19, spiral strip type stirring vane 18 shape in the shape of a spiral is fixed on the paddle 21, vertical ribbon stirrer moves upward the soil near stir process storehouse 13 inwalls and the soil of center moves downward, thereby make the continuous homogenising of soil, and the permeance property of enhancing air-flow, improve extraction efficiency, motor 9 is connected with agitator main shaft 19, drive the rotation of stirring vertical ribbon stirrer, realize whipping process, handle 13 tops, storehouse and be provided with soil inlet 12, the bottom is provided with soil outlet 25, soil inlet 12 is provided with seal cover 10 and sealing bolt 11, soil outlet 25 is provided with seal cover 26 and sealing bolt 27, seal cover 26 is provided with pressure-control valve 28, the version of seal cover 10 and seal cover 26 makes things convenient for its dismounting, when negative pressure reaches certain value in the stir process storehouse 13, pressure-control valve 28 releases air in the stir process storehouse 13 automatically, thereby formation air-flow, promote the volatilization of pollutant, and avoid stir process storehouse 13 negative pressure excessive, apparatus for kneading apparatus is fixedly mounted on the support 40, heating cabinet 16 bottoms are provided with relief valve 17, to guarantee that heating cabinet 16 inner vapor force value remain in the safe range, the vapours generating means is by replenishing water tank of water 35, heating container 36, heater 37 constitutes, replenishing water tank of water 35, heating container 36 is the sealing shape, replenishing water tank of water 35 is connected to heating container 36 tops by pipeline C33, the fixing valve 34 that is provided with successively on pipeline C33, water pump 32, heating container 36 is connected to heating cabinet 16 tops by pipeline A29, is provided with valve 31 on the pipeline A29 successively, gas flowmeter 30, heating container 36 is connected to heating cabinet 16 bottoms by pipeline B23, be provided with circulating pump 24 on the pipeline B23 successively, valve 22, heater 37 is installed in the heating container 36, heating container 36, wireway 29, heating cabinet 16, the common circulatory system that forms heat steam such as pipeline B23, the gas recycling and processing device is made of gas absorbent charcoal adsorber 1 and electrostatic precipitator 5, electrostatic precipitator 5 is used for removing the dust of dusty gas, gas is carried out preliminary treatment, and its top is connected to gas absorbent charcoal adsorber 1 by wireway 3, and gas absorbent charcoal adsorber 1 is used for absorption and reclaims dusty gas, be provided with gas flowmeter 4 and valve 2 on the wireway 3 successively, electrostatic precipitator 5 bottoms are connected to 13 tops, stir process storehouse by wireway 7, are provided with valve 6 and vavuum pump 8 on the wireway 7 successively, and vavuum pump 8 is used for dusty gas is drawn into the gas recycling and processing device, realize the sampling of dusty gas simultaneously by the opening and closing of valve 6, automaton is by computer and first temperature sensor 14 that is connected in computer, second temperature sensor 38, vacuum pressure sensor 20, electronic type liquid level gauge group 39 constitutes, and wherein, first temperature sensor 14 and vacuum pressure sensor 20 are separately positioned on the inwall in stir process storehouse 13, second temperature sensor 38 is arranged on the inwall at heating container 36 tops, electronic type liquid level gauge group 39 is arranged on the madial wall of heating container 36, and electronic type liquid level gauge group 39 adopts three electronic type liquid level gauges, in addition, computer also can with vavuum pump 8, motor 9, heater 37 devices such as grade connect, to realize its intelligent control.

The operation principle that the dystopy heat of above-mentioned contaminated soil is strengthened the extracting treating apparatus is as follows:

1. contaminated soil is loaded to stir process storehouse 13 through soil inlet 12, vavuum pump 8 begins to extract the gas in the stir process storehouse 13, pressure-control valve 28 releases air in the stir process storehouse 13 automatically simultaneously, form air-flow in the stir process storehouse 13, gas pressure values in the stir process storehouse 13 are passed to computer by vacuum pressure sensor 20, and by the speed of evacuation of computer control vavuum pump 8;

2. every 30~60 minutes, motor 9 drove vertical ribbon stirrer soil is carried out 3-5 minute stirring, makes the continuous homogenising of soil, and motor links to each other with computer, by computer control mixing time and stirring frequency;

3. the vapours that is produced by the vapours generating means enters heating cabinet 16 via pipeline A29, soil is heated, temperature value in the stir process storehouse 13 is passed to computer by first temperature sensor 14, and by the heating-up temperature of computer control heater 37, water that is cooled simultaneously or cold steam flow back to heating container 36 by circulating pump 24;

4. the liquid level information in the water tank is passed to computer by electronic type liquid level gauge group 39, and carries out moisturizing by 32 pairs of heating containers of computer control water pump 36;

5. after being carried out the dedusting preliminary treatment by the gas of extracting by electrostatic precipitator 5, enter gas absorbent charcoal adsorber 1, open valve 6, can sample to gas, when sample gas concentration at the appointed time (according to character such as gas, soil and decide) when being lower than a certain very little value all the time, think that promptly the pollutant in the soil is clean by extracting;

Pollutant in the soil by extracting clean after, soil outlet 25 is opened in the arrestment operation, and by slowly stirring, soil is discharged from soil outlet 25.

Claims (4)

1. the dystopy of contaminated soil heat is strengthened the extracting treating apparatus, it is characterized in that: the dystopy heat of contaminated soil is strengthened the extracting treating apparatus by apparatus for kneading apparatus, the vapours generating means, the gas recycling and processing device, automaton and support (40) are formed, apparatus for kneading apparatus is by heating cabinet (16), stir process storehouse (13), vertical ribbon stirrer and motor (9) constitute, be set with heating cabinet (16) on the outer wall in stir process storehouse (13), form hollow interlayer (15) between heating cabinet (16) and stir process storehouse (13), vertical ribbon stirrer is arranged in the stir process storehouse (13), motor (9) is arranged on top, stir process storehouse (13), motor (9) is connected with the main shaft (19) of vertical ribbon stirrer, top, stir process storehouse (13) is provided with soil inlet (12), the bottom is provided with soil outlet (25), apparatus for kneading apparatus is fixedly mounted on the support (40), heating cabinet (16) bottom is provided with relief valve (17), the vapours generating means is by replenishing water tank of water (35), heating container (36), heater (37) constitutes, replenishing water tank of water (35), heating container (36) is the sealing shape, replenishing water tank of water (35) is connected to heating container (36) top by pipeline C (33), go up the fixing valve (34) that is provided with successively at pipeline C (33), water pump (32), heating container (36) is connected to heating cabinet (16) top by pipeline A (29), be provided with valve (31) on the pipeline A (29) successively, gas flowmeter (30), heating container (36) is connected to heating cabinet (16) bottom by pipeline B (23), be provided with circulating pump (24) on the pipeline B (23) successively, valve (22), heater (37) is installed in the heating container (36), the gas recycling and processing device is made of gas absorbent charcoal adsorber (1) and electrostatic precipitator (5), electrostatic precipitator (5) top is connected to gas absorbent charcoal adsorber (1) by wireway (3), be provided with gas flowmeter (4) and valve (2) on the wireway (3) successively, electrostatic precipitator (5) bottom is connected to top, stir process storehouse (13) by wireway (7), be provided with valve (6) and vavuum pump (8) on the wireway (7) successively, automaton is by computer and first temperature sensor (14) that is connected in computer, second temperature sensor (38), vacuum pressure sensor (20), electronic type liquid level gauge group (39) constitutes, wherein, first temperature sensor (14) and vacuum pressure sensor (20) are separately positioned on the inwall of stir process storehouse (13), second temperature sensor (38) is arranged on the inwall at heating container (36) top, and electronic type liquid level gauge group (39) is arranged on the madial wall of heating container (36).
2. the dystopy of contaminated soil heat is strengthened the extracting treating apparatus according to claim 1, it is characterized in that: described soil inlet (12) is provided with seal cover (10) and sealing bolt (11).
3. the dystopy of contaminated soil heat is strengthened the extracting treating apparatus according to claim 1, it is characterized in that: described soil outlet (25) is provided with seal cover (26) and sealing bolt (27), and seal cover (26) is provided with pressure-control valve (28).
4. the dystopy of contaminated soil heat is strengthened the extracting treating apparatus according to claim 1, it is characterized in that: described vertical ribbon stirrer is made of spiral strip type stirring vane (18), agitator main shaft (19), paddle (21), paddle (21) is fixed on the agitator main shaft (19), and spiral strip type stirring vane (18) shape in the shape of a spiral is fixed on the paddle (21).
CN201020039579XU 2010-01-22 2010-01-22 Ectopic heat-strengthening extraction treatment device for contaminated soil CN201659137U (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102000693A (en) * 2010-12-06 2011-04-06 中国科学院武汉岩土力学研究所 Device for solar ex-situ remediation of volatile organic pollution soil
CN102128940A (en) * 2010-12-30 2011-07-20 东南大学 Planetary soil transfer and dust-proof seal device
CN102527711A (en) * 2012-03-02 2012-07-04 武汉都市环保工程技术股份有限公司 Movable type contaminated soil remediation system adopting recirculating fluidized bed
CN102527709A (en) * 2012-01-09 2012-07-04 中国科学院武汉岩土力学研究所 Supercritical fluid restoration treatment system of polluted soil
CN102615096A (en) * 2012-04-09 2012-08-01 长沙威保特环保科技有限公司 Soil vacuum heater
CN102794148A (en) * 2012-07-19 2012-11-28 江苏中旗作物保护股份有限公司 Automatically-controlled steam heating reaction kettle
CN103447291A (en) * 2012-05-31 2013-12-18 上海市环境科学研究院 Chlorobenzene contaminated soil strengthening gas phase repairing device, underbrush device thereof and method of processing chlorobenzene contaminated soil by utilizing repairing device
CN103624073A (en) * 2013-08-29 2014-03-12 上海市环境科学研究院 Simulation test apparatus for persulfate hot-steam activated advanced oxidation ex-situ restoration of contaminated soil and simulation test method thereof
CN103624069A (en) * 2013-01-15 2014-03-12 上海市环境科学研究院 Simulation test device and simulation test method for ex-situ remediation of contaminated soil by liquid preparations
CN103658164A (en) * 2013-05-17 2014-03-26 上海康恒环境股份有限公司 Device for processing organic contaminants in soil
CN103658166A (en) * 2013-12-26 2014-03-26 江苏盖亚环境工程有限公司 Steam oven for remedying polluted soil
CN104174644A (en) * 2014-08-15 2014-12-03 东南大学 On-site and ex-situ polluted soil restoring device
CN107824608A (en) * 2017-12-13 2018-03-23 长沙汇聚环境技术有限公司 A kind of method and device of Volatile Organohalides and chromium combined contamination soil reparation
CN109127708A (en) * 2018-08-17 2019-01-04 苏州谦合诚智能科技有限公司 A kind of contaminated soil heterotopic environment protection treating device

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102000693A (en) * 2010-12-06 2011-04-06 中国科学院武汉岩土力学研究所 Device for solar ex-situ remediation of volatile organic pollution soil
CN102000693B (en) * 2010-12-06 2011-10-12 中国科学院武汉岩土力学研究所 Device for solar ex-situ remediation of volatile organic pollution soil
CN102128940A (en) * 2010-12-30 2011-07-20 东南大学 Planetary soil transfer and dust-proof seal device
CN102128940B (en) * 2010-12-30 2012-11-28 东南大学 Planetary soil transfer and dust-proof seal device
CN102527709A (en) * 2012-01-09 2012-07-04 中国科学院武汉岩土力学研究所 Supercritical fluid restoration treatment system of polluted soil
CN102527709B (en) * 2012-01-09 2013-07-10 中国科学院武汉岩土力学研究所 Supercritical fluid restoration treatment system of polluted soil
CN102527711A (en) * 2012-03-02 2012-07-04 武汉都市环保工程技术股份有限公司 Movable type contaminated soil remediation system adopting recirculating fluidized bed
CN102527711B (en) * 2012-03-02 2013-05-08 武汉都市环保工程技术股份有限公司 Movable type contaminated soil remediation system adopting recirculating fluidized bed
CN102615096A (en) * 2012-04-09 2012-08-01 长沙威保特环保科技有限公司 Soil vacuum heater
CN102615096B (en) * 2012-04-09 2013-02-27 长沙威保特环保科技有限公司 Soil vacuum heater
CN103447291B (en) * 2012-05-31 2015-12-09 上海市环境科学研究院 Chlorobenzene contaminated soil strengthening gas phase extracting restorative procedure
CN103447291A (en) * 2012-05-31 2013-12-18 上海市环境科学研究院 Chlorobenzene contaminated soil strengthening gas phase repairing device, underbrush device thereof and method of processing chlorobenzene contaminated soil by utilizing repairing device
CN102794148A (en) * 2012-07-19 2012-11-28 江苏中旗作物保护股份有限公司 Automatically-controlled steam heating reaction kettle
CN103624069B (en) * 2013-01-15 2015-05-13 上海市环境科学研究院 Simulation test device and simulation test method for ex-situ remediation of contaminated soil by liquid preparations
CN103624069A (en) * 2013-01-15 2014-03-12 上海市环境科学研究院 Simulation test device and simulation test method for ex-situ remediation of contaminated soil by liquid preparations
CN103658164A (en) * 2013-05-17 2014-03-26 上海康恒环境股份有限公司 Device for processing organic contaminants in soil
CN103624073B (en) * 2013-08-29 2015-04-08 上海市环境科学研究院 Simulation test apparatus for persulfate hot-steam activated advanced oxidation ex-situ restoration of contaminated soil and simulation test method thereof
CN103624073A (en) * 2013-08-29 2014-03-12 上海市环境科学研究院 Simulation test apparatus for persulfate hot-steam activated advanced oxidation ex-situ restoration of contaminated soil and simulation test method thereof
CN103658166A (en) * 2013-12-26 2014-03-26 江苏盖亚环境工程有限公司 Steam oven for remedying polluted soil
CN104174644A (en) * 2014-08-15 2014-12-03 东南大学 On-site and ex-situ polluted soil restoring device
CN104174644B (en) * 2014-08-15 2016-05-11 东南大学 A kind of original place dystopy polluted soil repairing device
CN107824608A (en) * 2017-12-13 2018-03-23 长沙汇聚环境技术有限公司 A kind of method and device of Volatile Organohalides and chromium combined contamination soil reparation
CN109127708A (en) * 2018-08-17 2019-01-04 苏州谦合诚智能科技有限公司 A kind of contaminated soil heterotopic environment protection treating device

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