CN110180881A - It is a kind of to cooperate with indirect thermal desorption soil repair system and its restorative procedure - Google Patents
It is a kind of to cooperate with indirect thermal desorption soil repair system and its restorative procedure Download PDFInfo
- Publication number
- CN110180881A CN110180881A CN201910514931.6A CN201910514931A CN110180881A CN 110180881 A CN110180881 A CN 110180881A CN 201910514931 A CN201910514931 A CN 201910514931A CN 110180881 A CN110180881 A CN 110180881A
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- Prior art keywords
- thermal desorption
- rotary kiln
- soil
- room
- lye
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- 238000003795 desorption Methods 0.000 title claims abstract description 93
- 239000002689 soil Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008439 repair process Effects 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 35
- 239000010865 sewage Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007921 spray Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 239000011368 organic material Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 39
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000005067 remediation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- B09C1/005—Extraction of vapours or gases using vacuum or venting
-
- 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
- B09C1/08—Reclamation of contaminated soil chemically
Landscapes
- 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
The present invention relates to a kind of indirect thermal desorption soil repair system of collaboration and its restorative procedures, it include: lye sprinkling feed system, charging soil is sent after lye sprinkling stirring to rotary kiln type thermal desorption room, high-temperature flue gas is generated by combustion chamber and provides heat to rotary kiln progress indirect heating, is desorbed out from contaminated soil heating with organic matter degradation under the synergistic effect of lye catalysis；Thermal desorption room is equipped with the outlet of desorption gas and connects exhaust treatment system, and organic matter condensation is transferred in sewage thermal desorption gas spraying cooling by exhaust treatment system, and part is partially recycled for the humidification that discharges in the sewage of generation after sending to sewage disposal system purification.A kind of indirect thermal desorption soil repair system of collaboration, which can significantly drop, according to the present invention promotes soil treatment amount, and organic material contaminated soil thermal desorption temperature is effectively reduced, saves energy consumption.
Description
Technical field
The invention belongs to technical field of soil remediation, and in particular to a kind of indirect thermal desorption soil repair system of collaboration and its
Restorative procedure.
Background technique
Organic pollutant, especially PCBs(chlorinated biphenyl) class persistence organic pollutant, physicochemical properties are stable, no
It easily decomposes, it is extremely difficult to be dissolved in water, there is very strong affinity to fat, it is easy to be accumulated in fat, damage skin and liver, draw
Poisoning is played, carcinogen is belonged to.Renovation of organic pollution soil technology is broadly divided into peripheral doses, chemical remediation and biological prosthetic three
Class and combined remediation technology based on the above technology.Wherein thermal desorption recovery technique is wide with the pollutant scope of application, removes
High-efficient, the advantages that repairing efficiency is short, it is considered to be one of most effectual way.But most of thermal desorption uses the side of directly heating
Method, contamination with chlorinated organics this kind of for PCBs are not only easy to generate the secondary pollutions such as dioxin during heating, but also
Required thermal desorption temperature is high, and the tail of generation is large-minded, and processing cost is higher.
Summary of the invention
The technical problem to be solved by the present invention is to the shortcomings that overcoming the prior art, provides a kind of indirect thermal desorption of collaboration
Soil repair system and its restorative procedure, the system thermal desorption treating capacity are big, it can be achieved that PBCs class high boiling point organic compound Polluted Soil
The efficient thermal desorption of earth, tail gas clean-up is at low cost and will not thoroughly generate secondary pollution.
In order to solve the above technical problems, the present invention provides a kind of collaboration indirect thermal desorption soil repair system, including according to
Sequence connected lye sprinkling feed system, thermal desorption system, exhaust gas purification system and sewage disposal system；
It includes lye dosing tank (1), feeding warehouse (2), belt weigher (3) and scrapper conveyor (4), lye that lye, which sprays feed system,
Dosing tank (1) is connected by feeding warehouse (2) with one end of belt weigher (3), and the other end of belt weigher connects scrapper conveyor
(4)；
Thermal desorption system includes rotary kiln type thermal desorption room (5), feed inlet and scrapper conveyor (4) of rotary kiln type thermal desorption room (5)
It is connected, gas inlet and exhanst gas outlet is additionally provided on rotary kiln type thermal desorption room (5), gas inlet connects combustion chamber (6), flue gas
Outlet is connected with chimney (8)；
Exhaust gas purification system includes sprayed tank (9) and air-introduced machine (11), and sprayed tank (9) connects rotary kiln type thermal desorption room (5)
The top of bleeding point, sprayed tank (9) is connected by air-introduced machine (11) with combustion chamber (6)；
Sewage disposal system includes water circulating pump (13), aerial cooler (10) and sewage purifier (12), and sprayed tank (9) goes out
The mouth of a river connects sewage purifier (12), and sewage purifier (12) is divided into two-way by water circulating pump (13), cold by air all the way
But device (10) is recycled back to sprayed tank (9), and another way connects the discharge port (7) of rotary kiln type thermal desorption room (5).
The technical solution that the present invention further limits is: rotary kiln type thermal desorption room (5) is the rotary kiln of jacketed.
Further, discharge port (7) are arranged in the tail portion of rotary kiln type thermal desorption room (5).
Further, the installation gradient of rotary kiln type thermal desorption room is rearwardly to tilt 5 ~ 10 °.
The present invention also provides a kind of restorative procedures for cooperateing with indirect thermal desorption soil repair system, include the following steps,
Step S1, contaminated soil lye sprinkling stirring charging.By the discharge quantity of belt weigher (3) setting feeding warehouse (2), then
Lye dosing (1) spray value is set according to discharge quantity, spray value is 5 ~ 10% (wt) of inlet amount, and the soil after dosing is being fed
Rotary kiln type thermal desorption room (5) is transported to by scrapper conveyor (4) after being stirred in storehouse (2)；
Step S2, enter rotary kiln type thermal desorption room (5), the height that combustion chamber (6) burning generates from the soil that scrapper conveyor (4) are transported
Warm flue gas carries out indirect heating to soil in its outer layer collet.
Step S3, the desorption gas generated after heating is evacuated to sprayed tank from rotary kiln type thermal desorption room by air-introduced machine (11)
(9) it is cooled down in, gaseous organic substance is mixed into shower water after being condensed, and fixed gas is then sent after active carbon purifying to burning
The oxidation of room (6) heating power；
Step S4, shower water is transmitted to sewage purifier (12) by air bearing precipitating and Fenton oxidation purified treatment, and a part is net
Change water to be recycled after aerial cooler (10) are cooling as shower water, it is de- that another part purified water leads to rotary kiln type heat
The discharge port (7) of alcove (5) carries out humidification cooling to discharging soil.
The beneficial effects of the present invention are:
1. solving traditional rotary kiln as the de- room of heat using the rotary kiln type of jacketed floor and directly heating the tail that desorption generates
Problem large-minded, tail gas clean-up is at high cost, and solve that the indirect heating manner thermal desorption treating capacity generallyd use is small to ask
Topic.
2. physics desorption and chemical cooperated effect are combined, improved by carrying out lye sprinkling pretreatment to soil
To the thermal desorption efficiency of PCBs class high boiling point organic compound, desorption temperature is reduced, to reduce rehabilitation cost.
3. pair purified fixed gas of thermal desorption gas send to combustion chamber heating power and aoxidizes, secondary pollution is prevented.
To sum up, the thermal desorption treating capacity of the system is big, it can be achieved that PBCs class high boiling point organic compound contaminated soil High Efficiency Thermal is de-
Attached, tail gas clean-up is at low cost and will not thoroughly generate secondary pollution.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 is restorative procedure process flow chart of the invention.
Specific embodiment
Embodiment 1
Referring to Fig. 1, a kind of indirect thermal desorption soil repair system of collaboration provided in this embodiment, including sequentially connected lye
Spray feed system, thermal desorption system, exhaust gas purification system and sewage disposal system；
It includes lye dosing tank 1, feeding warehouse 2, belt weigher 3 and scrapper conveyor 4, lye dosing tank 1 that lye, which sprays feed system,
It is connected by feeding warehouse 2 with one end of belt weigher 3, the other end of belt weigher connects scrapper conveyor 4, can be according to belt meter
The inlet amount adjustment sprinkling lye amount that scale 3 measures is measured, and carries out mix in feeding warehouse 2, the material after mix lye is by scraping
Trigger 4 is sent to thermal desorption system；
Thermal desorption system includes rotary kiln type thermal desorption room 5, and the feed inlet of rotary kiln type thermal desorption room 5 is connected with scrapper conveyor 4, is returned
Gas inlet and exhanst gas outlet are additionally provided on kiln type thermal desorption room 5, gas inlet connects combustion chamber 6, exhanst gas outlet and chimney 8
It is connected, the high-temperature flue gas that combustion chamber 6 generates carries out indirect heating, rotary kiln to soil in 5 chuck layer of rotary kiln type thermal desorption room
5 chuck layer top of formula thermal desorption room is equipped with flue gas emission mouth and accesses chimney 8, the flue gas being arranged inside rotary kiln type thermal desorption room 5
Outlet is connected with the chimney 8 of tail gas evolutionary system, and discharge port 7 is arranged in 5 tail portion of rotary kiln type thermal desorption room；
Exhaust gas purification system includes sprayed tank 9 and air-introduced machine 11, and sprayed tank 9 connects the bleeding point of rotary kiln type thermal desorption room 5, spray
The top of leaching tank 9 is connected by air-introduced machine 11 with combustion chamber 6, for purifying thermal desorption gas and fixed gas being delivered to combustion chamber heat
Amount oxidation；
Sewage disposal system includes water circulating pump 13, aerial cooler 10 and sewage purifier 12, the water outlet connection of sprayed tank 9
Sewage purifier 12, sewage purifier 12 are divided by water circulating pump 13 for two-way, pass through 10 recycling spraying of aerial cooler all the way
Tank 9 is drenched, another way connects the discharge port 7 of rotary kiln type thermal desorption room 5.It is cooling for providing shower water, shower water to sprayed tank 9
And cooling water purification, purified cooling water a part are recycled, another part is for the humidifying cooling that discharges.
Rotary kiln type thermal desorption room 5 is the rotary kiln of jacketed.
Discharge port 7 is arranged in the tail portion of rotary kiln type thermal desorption room 5.
The installation gradient of rotary kiln type thermal desorption room 5 is rearwardly to tilt 5 ~ 10 °.
As shown in Fig. 2, the present embodiment also provides the restorative procedure of the indirect thermal desorption soil repair system of the collaboration, it is specific to walk
Suddenly are as follows:
Step 1: the sprinkling stirring charging of contaminated soil lye.2 discharge quantity of feeding warehouse is set by belt weigher 3, according to blanking
Amount setting 1 spray value of lye dosing, spray value is inlet amount 5 ~ 10% (wt), specifically depending on pollutant concentration.Soil after dosing
Earth is sent to scrapper conveyor by weighing belt after being stirred in feeding warehouse 2 and is transported to rotary kiln type thermal desorption room 5.
Step 2: collaboration thermal desorption processing.The soil to get off from scrapper conveyor 4 enters the revolution for rearwardly tilting 5 ~ 10 ° of installations
Kiln formula thermal desorption room 5, the high-temperature flue gas that the burning of combustion chamber 6 generates is in its outer layer collet to soil indirect heating.Rotary heat is de-
The heating method of 5 roller of alcove increases the heating surface area of soil, improves the mass-and heat-transfer coefficient during thermal desorption, more
The fast evaporation desorption for promoting organic matter.Macromolecular organic pollutant is gradually degraded to small molecule under lye and high temperature action
Formation desorption gas is desorbed out in organic matter from soil.It is de- after lye is added in same desorption time and desorption efficiency
Enclosure temperature can reduce by 100 ~ 200 DEG C than not adding lye.Cooperate with indirect thermal desorption by physical evaporation for PCBs (Polychlorinated biphenyls)
Desorption process is combined with chemical agent dealuminated USY cataluyst process, enhances the thermal desorption process of chlorine-containing compound.As at low temperature
Addition NaOH can effectively reduce the activation energy of PCBs degradation, promote the dechlorination reaction of PCBs molecule during thermal desorption, and
Soil particle becomes porous structure and is also beneficial to pollutant to evaporate.
Step 3: tail gas clean-up.Desorption gas is evacuated in sprayed tank 9 from rotary kiln type thermal desorption room 5 by air-introduced machine 11 to carry out
Cooling, most gaseous organic substances are condensed into shower water, and a small amount of fixed gas is sent after active carbon purifying to combustion
Burn the oxidation of 6 heating power of room.
Step 4: sewage treatment.The shower water that exhaust gas purification system generates enters sewage purifier 12, through air bearing precipitating, sweet smell
Reach sewage drainage standard after the techniques such as oxidation of pausing purification.Water after Partial cleansing is cooling as spray by aerial cooler 10
Water is recycled.
Step 5: soil humidification cooling discharging.Water after will be Partial cleansing leads to the discharge port of rotary kiln type thermal desorption room 5
7, humidification cooling is carried out to discharging soil, to inhibit fugitive dust.
The system, which can significantly drop, promotes soil treatment amount, and organic material contaminated soil thermal desorption temperature is effectively reduced, saves energy
Source consumption.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (5)
1. a kind of indirect thermal desorption soil repair system of collaboration, which is characterized in that including sequentially connected lye sprinkling charging system
System, thermal desorption system, exhaust gas purification system and sewage disposal system；
Lye sprinkling feed system includes lye dosing tank (1), feeding warehouse (2), belt weigher (3) and scrapper conveyor (4),
The lye dosing tank (1) is connected by the feeding warehouse (2) with one end of the belt weigher (3), the belt metering
The other end of scale connects the scrapper conveyor (4)；
The thermal desorption system includes rotary kiln type thermal desorption room (5), the feed inlet of rotary kiln type thermal desorption room (5) and institute
State scrapper conveyor (4) to be connected, be additionally provided with gas inlet and exhanst gas outlet on rotary kiln type thermal desorption room (5), the flue gas into
Mouth connection combustion chamber (6), the exhanst gas outlet are connected with chimney (8)；
The exhaust gas purification system includes sprayed tank (9) and air-introduced machine (11), and the sprayed tank (9) connects the rotary kiln type heat
The top of the bleeding point of desorption chamber (5), the sprayed tank (9) is connected by the air-introduced machine (11) with combustion chamber (6)；
The sewage disposal system includes water circulating pump (13), aerial cooler (10) and sewage purifier (12), the spray
The water outlet of tank (9) connects the sewage purifier (12), and the sewage purifier (12) is divided into two by water circulating pump (13)
Road is recycled back to the sprayed tank (9) by the aerial cooler (10) all the way, and another way connects the rotary kiln type thermal desorption
The discharge port (7) of room (5).
2. a kind of indirect thermal desorption soil repair system of collaboration according to claim 1, which is characterized in that the rotary kiln
Formula thermal desorption room (5) is the rotary kiln of jacketed.
3. a kind of indirect thermal desorption soil repair system of collaboration according to claim 1, which is characterized in that the rotary kiln
Discharge port (7) are arranged in the tail portion of formula thermal desorption room (5).
4. a kind of indirect thermal desorption soil repair system of collaboration according to claim 1, which is characterized in that the rotary kiln
The installation gradient of formula thermal desorption room is rearwardly to tilt 5 ~ 10 °.
5. a kind of restorative procedure for cooperateing with indirect thermal desorption soil repair system, which is characterized in that include the following steps,
Step S1, contaminated soil lye sprinkling stirring charging, by the discharge quantity of belt weigher (3) setting feeding warehouse (2), then
Lye dosing (1) spray value is set according to discharge quantity, spray value is 5 ~ 10% (wt) of inlet amount, and the soil after dosing is being fed
Rotary kiln type thermal desorption room (5) is transported to by scrapper conveyor (4) after being stirred in storehouse (2)；
Step S2, enter rotary kiln type thermal desorption room, the high-temperature flue gas that combustion chambers burn generates from the soil that scrapper conveyor (4) are transported
Indirect heating is carried out to soil in its outer layer collet；
Step S3, the desorption gas generated after heating be evacuated in sprayed tank from rotary kiln type thermal desorption room by air-introduced machine carry out it is cold
But, it is mixed into shower water after gaseous organic substance is condensed, fixed gas then send to combustion chamber heating power after active carbon purifying and aoxidizes；
Step S4, shower water is transmitted to after sewage purifier through air bearing precipitating and Fenton oxidation purified treatment, a part of purified water
It is recycled after aerial cooler is cooling as shower water, another part purified water leads to going out for rotary kiln type thermal desorption room
Material mouth carries out humidification cooling to discharging soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514931.6A CN110180881A (en) | 2019-06-14 | 2019-06-14 | It is a kind of to cooperate with indirect thermal desorption soil repair system and its restorative procedure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514931.6A CN110180881A (en) | 2019-06-14 | 2019-06-14 | It is a kind of to cooperate with indirect thermal desorption soil repair system and its restorative procedure |
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| CN110180881A true CN110180881A (en) | 2019-08-30 |
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| CN201910514931.6A Pending CN110180881A (en) | 2019-06-14 | 2019-06-14 | It is a kind of to cooperate with indirect thermal desorption soil repair system and its restorative procedure |
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| CN112547781A (en) * | 2020-11-30 | 2021-03-26 | 生态环境部南京环境科学研究所 | Device and method for controlling soil odor by using thermal desorption auxiliary agent |
| CN112705563A (en) * | 2020-11-30 | 2021-04-27 | 东南大学 | Multi-section double-source integrated soil thermal desorption device |
| CN115301722A (en) * | 2022-10-09 | 2022-11-08 | 江苏盖亚环境科技股份有限公司 | Double-heat-source-reusing triple rotary kiln, double-layer rotary kiln and soil remediation system and process |
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| CN112705563A (en) * | 2020-11-30 | 2021-04-27 | 东南大学 | Multi-section double-source integrated soil thermal desorption device |
| CN112547781B (en) * | 2020-11-30 | 2022-03-15 | 生态环境部南京环境科学研究所 | Device and method for controlling soil odor by using thermal desorption auxiliary agent |
| CN112705563B (en) * | 2020-11-30 | 2022-03-18 | 东南大学 | Multi-section double-source integrated soil thermal desorption device |
| CN115301722A (en) * | 2022-10-09 | 2022-11-08 | 江苏盖亚环境科技股份有限公司 | Double-heat-source-reusing triple rotary kiln, double-layer rotary kiln and soil remediation system and process |
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Application publication date: 20190830 |