CN103191912A - Device for in-situ regulation and restoration of organic contaminated soil and underground water - Google Patents
Device for in-situ regulation and restoration of organic contaminated soil and underground water Download PDFInfo
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- CN103191912A CN103191912A CN2013101266192A CN201310126619A CN103191912A CN 103191912 A CN103191912 A CN 103191912A CN 2013101266192 A CN2013101266192 A CN 2013101266192A CN 201310126619 A CN201310126619 A CN 201310126619A CN 103191912 A CN103191912 A CN 103191912A
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Abstract
The invention discloses a device for in-situ regulation and restoration of organic contaminated soil and underground water. The device is composed of a superheated steam high-frequency generation system, an air preheating system, an air-superheated steam mixed in-situ injection system, a soil gas stripping and ground waste gas and waste water treatment system, a monitoring well, and the like. The water from a water supply system is heated into superheated steam at high frequency, the air enters into the air-superheated steam mixed in-situ injection system through the preheating system, in-situ injection of the superheated steam and in-situ injection of the high temperature air are realized simultaneously, the restoration effect is enhanced by the soil gas stripping and ground waste gas and waste water treatment system, and the restoration effect is observed through the monitoring well. The device has the advantage that after the air and the superheated steam are mixed, the temperature of the mixture rises quickly, the heat exchange efficiency is high, air-superheated steam high-temperature mixed gas injection restoration is realized in situ in the organic contaminated soil and underground water, thus, the device is especially suitable for effectively eliminating the high-boiling point and non-volatile organic pollutants in the underground water.
Description
Technical field
The present invention relates to a kind of device for organic polluted soil and underground water original position improvement reparation, belong to pollution control and repair environmental technology field, the original position that is mainly used in the industrial class place that is subjected to volatility and semi-volatile organic matter pollution is repaired, and is specially adapted to the efficient removal of higher boiling in the polluted underground water, difficult volatilization organic pollution.
Background technology
Along with China's rapid economy development, a large amount of consumption of resource and the energy, environmental problem becomes increasingly conspicuous, particularly caused the very big concern of society in the recent period about a large amount of reports of soil and underground water pollution aspect, how to solve the sustainable development of China's economy, how preventing the pollution of the environment and jeopardize the people's livelihood, is that pendulum is in our present matter of utmost importance.
Organic polluted soil and underground water refer to because piling up, store, handle, dispose or other modes (as migration) having been carried health or environment are produced harm or have the organic compound of potential risk, organic substance as volatility such as diesel oil, crude oil, agricultural chemicals, halogenated hydrocarbons, benzene series thing, half volatile and difficult volatilization has caused such organic soil and underground water pollution.It is administered the difference of repairing according to the treatment technology mode and mainly is divided into original position reparation and dystopy reparation, wherein thereby the original position reparation is not owing to need to excavate substantially, reduced the secondary pollution problem in the operation to greatest extent such as transhipment, and its cost is relatively low, is the main trend of environment remediation technical development from now on.
For example, patent CN202490819U discloses a kind of in-situ repairing device of organic polluted soil, this device comprises four systems: 1. steam injected system, 2. soil extraction system, 3. monitoring system, 4. ground waste gas Waste Water Treatment, realized low boiling in the soil, the efficient removal of volatile organic pollution, but there are the following problems for this device: its steam injected system adopts saturated vapor, its temperature is lower and pressure is higher, the Steam Heating duration, efficiency is low, simultaneously to higher boiling in the soil, the organic pollutant removal effect of difficult volatilization is undesirable, and does not carry out as yet at phreatic pollution repair.Patent US4966654 discloses a kind of soil and underground water repair system, belong to underground water reparation extraction-treatment technology category, the organic contamination underground water that is primarily aimed at extraction adopts steam desorption, flash column separation and charcoal absorption technology to handle, handling water after up to standard annotates back underground again or reserves for other use, this system does not inject steam underground, only as the thermal source of extracting the underground water desorption out, because the water body amount of the required processing of this technology is big, make energy consumption excessive.Patent CN102491603 discloses air ejector system and method that original position is repaired volatile contaminant in the underground water, this system comprises air feed equipment, air injector well, groundwater monitoring well and SOIL GAS monitor well, according to actual needs can also be in conjunction with the air lift system; And patent CN102219293 discloses original position and has repaired contaminated phreatic improvement aeration well and restorative procedure, has designed aerating system, increases phreatic perpendicular flow and reaches the horizontal proliferation that reduces pollutant.Problems such as but above-mentioned 2 patented technologies do not heat reinforcement to the air that injects, and can cause traditional air injection technique not good to the organic pollution repairing effect of higher boiling, difficult volatilization in the underground water, and repair time is long.
At the problem that exists in present organic polluted soil and underground water in-situ repairing device and the technology, vapor (steam) temperature is low such as injecting, energy consumption is big, the heating duration, do not adopt high temperature air to inject and for soil and underground water higher boiling, the original position repairing effect of difficult volatilization organic pollution is not good etc., the superheated steam and the air that the present invention proposes with high-frequency heating directly mix organic polluted soil and the underground water prosthetic device that original position is injected to feature, by high-frequency heating and superheated steam and air direct heat transfer, it is fast not only can to realize injecting mist temperature firing rate, and the temperature height is especially for the higher boiling in the underground water, difficult volatilization organic pollution can be realized efficient removal.
Summary of the invention
The object of the present invention is to provide a kind of efficient, quick, green, energy-conservation organic polluted soil and underground water original position to administer prosthetic device, this device adopts the superheated steam of high-frequency heating generation and the media that the mixed high-temperature gas of air is repaired as organic pollution, realize the removal of volatility and semi-volatile organic matter in contaminated soil and the underground water in position by physical method, be specially adapted to the original position reparation of higher boiling in the underground water, difficult volatilization organic pollution.
The present invention relates to a kind of device for organic polluted soil and underground water original position improvement reparation, mainly by superheated steam high frequency generation systems (2), air preheating system (4), air-superheated steam mixes original position injected system (5), soil air lift and ground waste gas Waste Water Treatment (6), monitor well (8) and connecting line constitute, and be achieved through the following technical solutions organic polluted soil and underground water original position improvement reparation: water system (1) is connected by water valve with superheated steam high frequency generation systems (2), water in the water system (1) enters superheated steam high frequency generation systems (2) and realizes Fast Heating, and become superheated steam output, send into air-superheated steam then and mix original position injected system (5); Air is squeezed into air cushioning storage tank (3) by air compressor simultaneously, enters air preheating system (4) by air flow valve then, and the air after preheating enters air-superheated steam by check valve (7) and mixes original position injected system (5); Open soil air lift and ground waste gas Waste Water Treatment (6) simultaneously, utilize vavuum pump that the restoring area of superheated steam and air injection is carried out the gas phase extraction by the air lift well that arranges, send into ground waste gas Waste Water Treatment then and handle the back qualified discharge.In repair process, observe the organic pollutant removal effect of required reparation in soil and the underground water pollution zone and the variation of level of ground water by the monitor well (8) that arranges.
The used water source of described water system (1) can be the recycled water of running water or soil air lift and ground waste gas Waste Water Treatment (6) qualified discharge.
Described superheated steam high frequency generation systems (2) can be to be made of one or more high frequency electric source heating systems, preferably constituted by 2 high frequency electric source heating systems, and one of them high frequency electric source heating system (12) is as the preheating of water, and another (13) are as producing superheated steam.Described high frequency electric source heating system (12,13) comprises the eddy-current heating heat exchange body of coil, high-frequency heating power and parcel insulation material, wherein the heat exchange body is as selecting ferrite stainless steel pipe or cast iron pipe or carbon steel pipe or compo pipe for use, preferred corrosion-resistant withstand voltage ferrite stainless steel pipe; Wherein load coil is wrapped in the outer wall of ferrite stainless steel pipe insulation material, coil two end connectors can directly link to each other with high-frequency heating power or organize coils from parallel connection of coils/series connection more after link to each other with high-frequency heating power again, can in several minutes, be heated to 80 ℃-100 ℃ for water preheat rapidly with the water that high frequency electric source heating system (12) flows into stainless steel tube, enter superheated steam production high frequency electric source heating system (13) again, the hot water that flows into stainless steel tube can be heated to be 110 ℃-600 ℃ superheated steam rapidly in several minutes, and directly entered air-superheated steam mixing original position injected system (5).Described high frequency electric source heating system (12,13) operation principle is to make load coil produce action of alternating magnetic field on ferrite stainless steel pipe (heat exchange body) by high-frequency heating power, produce eddy current, thereby realized that electric energy is converted into heat energy, realized the rapid heating of water simultaneously by the heat exchange effect of water in the ferritic stainless steel tube and tube road.
Described air preheating system (4) be by with soil air lift and ground waste gas Waste Water Treatment (6) in the vapour phase heat exchanger (9) that carries out indirect heat exchange realize that air themperature is 45 ℃-110 ℃ after the preheating of exporting.
It is with after superheated steam and air the mixings direct heat transfer, simultaneously by injection well (10) the organic contaminated soil of injection and underground water that described air-superheated steam mixes original position injected system (5).Enter the injection well after described superheated steam and the air mixing direct heat transfer, high-temperature gas mixture body implantation temperature can reach 500 ℃.Described superheated steam is to set in automatic temperature control system (11) according to the geotechnical property of organic pollution type, content, physicochemical properties and Polluted area in soil and the underground water with air mixing implantation temperature, and realizes this design temperature by the air mass flow that this robot control system(RCS) (11) is regulated high frequency electric source power in the superheated steam high frequency generation systems (2) and steam flow and air preheating system (4) output automatically.
Described water system (1), water preheat can be stopped using with high frequency electric source heating system (12), directly feed industrial low-pressure steam by steam reducing valve (8), send into superheated steam production with high frequency electric source heating system (13), become and enter air-superheated steam behind the superheated steam and mix original position injected system (5).
Described device for organic polluted soil and underground water original position improvement reparation, can adopt water preheat with system such as above high-frequency heating such as one of high frequency electric source heating system (12) and superheated steam production usefulness high frequency electric source heating system (13) etc., system compares with the single high-frequency heating of employing, reduce the thermal loss in the jet chimney course of conveying to greatest extent, improved firing rate and the utilization ratio of superheated steam simultaneously greatly.
Described device for organic polluted soil and underground water original position improvement reparation, setting and the design of ground waste gas waste water system of its air-injection of superheated steam high-temperature gas mixture body well, soil air lift well and monitor well can be with reference to CN202490819U, difference is: 1. the position of air-superheated steam high-temperature gas mixture body injection well can be positioned at the below in soil and underground water pollution zone, can repair the organic pollution in the underground water; 2. the required vavuum pump of soil air lift technology makes the air lift process energy consumption reduce because the applied load of superheated steam and air can reduce, or can select the lower vavuum pump of power for use during the vavuum pump type selecting; 3. waste gas waste water system in ground has been because the use of superheated steam has reduced wastewater treatment capacity, and the recycled water after handling can enter water system (1) and continue reuse, reduces the waste of water resource; 4. the air that injects-superheated steam high-temperature gas mixture body has been strengthened the repairing effect of underground water higher boiling, difficult volatile organic compounds more, has shortened repair time greatly.
This invents related a kind of organic polluted soil and the underground water original position is administered the device of repairing, the superheated steam of high-frequency heating production and the media that the mixed high-temperature gas of air is repaired as organic pollution in soil and the underground water have been adopted, compare with traditional based technique for in-situ remediation, improved the remediation efficiency of higher boiling in soil and the underground water, difficult volatilization organic pollution greatly.
Description of drawings
Fig. 1 is a kind of device schematic diagram for organic polluted soil and underground water original position improvement reparation.
The accompanying drawing marking explanation:
The 1-water system; 2-superheated steam high frequency generation systems; 3-air cushioning storage tank; The 4-air preheating system; 5-air-superheated steam mixes the original position injected system; 6-soil air lift and ground waste gas Waste Water Treatment; The 7-check valve; The 8-monitor well; 9-air preheat heat exchanger; 10-air-superheated steam mixes original position and injects well; The 11-automatic temperature control system; 12-water preheat high frequency electric source heating system; 13-superheated steam production high frequency electric source heating system; 14-spun-glass insulation layer; 15-ferrite stainless steel pipe; 16-eddy-current heating coil; The 17-high-frequency heating power; 18-air lift well; The 19-water cooling heat exchanger; The 20-gas-liquid separator; The 21-vavuum pump; The 22-exhaust treatment system; The 23-Waste Water Treatment; 24-gas qualified discharge; 25-water qualified discharge; The 26-tap water supply; 27-industry low-pressure steam is supplied with; 28-ground; The 29-level of ground water; The 30-air compressor; The 31-head tank; 32-pipeline current divider; The 33-water pump.
The specific embodiment
The media that the superheated steam that this device high-frequency heating is produced and the mixed high-temperature gas of air are repaired as organic pollution in soil and the underground water, be applicable to the original position reparation of volatility and semi-volatile organic matter in the contaminated site, be specially adapted to higher boiling, difficult volatilization organic polluted soil and underground water original position and administer and repair.
By reference to the accompanying drawings 1, device involved in the present invention mixes original position injected system (5), soil air lift and ground waste gas Waste Water Treatment (6), monitor well (8) and connecting line by superheated steam high frequency generation systems (2), air preheating system (4), air-superheated steam and constitutes.
Described water system (1) adopts the mode that water head tank is combined with water pump to supply water, and wherein the water source has 2, and the first comes from running water system (26); It two is to come from the recycled water (25) that Waste Water Treatment (23) is removed reuse behind the pollutant.
Described superheated steam high frequency generation systems (2) is to be made of with high frequency electric source heating system (13) with high frequency electric source heating system (12) and superheated steam production water preheat, wherein each high frequency electric source heating system includes eddy-current heating coil (16), the corrosion-resistant withstand voltage ferrite stainless steel pipe (15) of high-frequency heating power (17) and parcel insulation material (14), wherein load coil (16) is wrapped in the outer wall of ferrite stainless steel pipe insulation material (14), and coil two end connectors adopt the mode that directly links to each other with high-frequency heating power (17) for water preheat with high frequency electric source heating system (12); Then adopt the mode that links to each other with high-frequency heating power (17) again after the coils from parallel connection of coils/series connection of many groups with high frequency electric source heating system (13) for superheated steam production.Can in 50 seconds, be heated to 85 ℃ rapidly for water preheat with the water that high frequency electric source heating system (12) flows into stainless steel tube (15), enter superheated steam production high frequency electric source heating system (13) again, the hot water that flows into stainless steel tube (15) can be heated to temperature rapidly and be reached 580 ℃ superheated steam in 2.5 minutes, and directly entered air-superheated steam mixing original position injected system (5).
Described air preheating system (4) be by with soil air lift and ground waste gas Waste Water Treatment (6) in the vapour phase heat exchanger (9) that carries out indirect heat exchange realize that air themperature reaches 105 ℃ after the preheating of exporting under the stable state situation.
It is with after superheated steam and air the mixings direct heat transfer, simultaneously by injection well (10) the organic contaminated soil of injection and underground water that described air-superheated steam mixes original position injected system (5).Enter the injection well after wherein said superheated steam and the air mixing direct heat transfer, high-temperature gas mixture body implantation temperature can reach 500 ℃.Wherein said superheated steam can be set in automatic temperature control system (11) according to the geotechnical property of organic pollution type, content, physicochemical properties and Polluted area in soil and the underground water with air mixing implantation temperature.Wherein said automatic temperature control system (11) comprises temperature sensor, flow sensor, high-frequency heating power power regulation device and PLC control panel etc., and the air mass flow that can regulate high frequency electric source power in the superheated steam high frequency generation systems (2) and steam flow and air preheating system (4) output by this robot control system(RCS) (11) automatically realizes this design temperature.
The organic pollutant removal effect of required reparation and the variation of level of ground water in described monitor well (8) observation soil and the underground water pollution zone.
Described soil air lift and ground waste gas Waste Water Treatment (6) comprise air lift well (18), water cooling heat exchanger (19), gas-liquid separator (20), vavuum pump (21), exhaust treatment system (22) and Waste Water Treatment (23), connecting line and Displaying Meters such as temperature, pressure, wherein exhaust treatment system (22) and Waste Water Treatment (23) all adopt charcoal absorption to remove the technology of organic pollution, regularly remove the saturated active carbon of absorption and are transported to the useless unit burning disposal of handling of the danger with qualification.
Describe the ruuning situation of this device in detail below in conjunction with the application of reality.
Select this device of hot spot region installation and operation of 50 meters * 50 meters in the contaminated site that the resettlement of a certain pesticide chemical factory is left over, this regional soil level is respectively 1.3 * 10 with vertical infiltration coefficient mean value
-4M/s, 4.2 * 10
-4M/s, the soil formation is respectively building waste, plain soil, silt and silty clay from top to bottom, the soil average moisture content is 34.8%, dry season, phreatic water position average out to was 1.9 meters, organic pollution and average content thereof main in the soil are as shown in table 1 below, and organic pollution and average content thereof are as shown in table 2 below in the underground water (degree of depth is in 2 meters-3 meters).
Organic pollution contains scale in table 1 soil.
Organic pollution contains scale in table 2 underground water.
| The organic pollution title | Content (μ g/l) | Target reparation value (μ g/l) |
| Benzene | 2650 | 2000 |
| Ortho-aminotoluene | 108 | 0.2 |
| Ethylbenzene | 32490 | 20000 |
According to direction of groundwater flow, lay 1 mouthful of monitor well in this downstream, zone.In addition, polluting 2 mouthfuls of the most serious hot spot region core position laying monitor wells, be respectively applied to monitor contaminated soil and polluted underground water.
In conjunction with the experience of self, carry out air-superheated steam at this contaminated site scene and inject well and the soil air lift well contrived experiment of layouting, namely determine to inject the radiation radius of well and air lift well, according to on-the-spot Rock soil Characteristics and pollutant distribution situation, design determines that one's respective area air-superheated steam injects well and 6 mouthfuls and soil air lift well are set arrange 12 mouthfuls, and lays in particular geographic location this in situ environment prosthetic device is installed.Also determine by the Site Design experiment simultaneously: air-superheated steam mist implantation temperature is about 400 ℃, and air lift system held vacuum is about 23KPa.
Wherein, concrete setting and the design of ground waste gas waste water system of monitor well, air-superheated steam injection well and air lift well can be with reference to CN202490819U, but have difference: 1. the position of air-superheated steam injection well is positioned at the below of place Polluted area, be arranged in level of ground water following (being positioned at 2 meters-3 meters depth boundses), simultaneously the organic pollution in rehabilitating soil and the underground water; 2. the required vavuum pump of soil air lift technology makes the air lift process energy consumption reduce because the applied load of superheated steam can reduce, or can select the lower vavuum pump of power for use during the vavuum pump type selecting; 3. waste gas waste water system in ground has been because the use of superheated steam has reduced wastewater treatment capacity, and the recycled water after handling can enter water system (1) and continue reuse, reduces the waste of water resource; 4. the air that injects-superheated steam high-temperature gas mixture body has been strengthened the repairing effect of underground water higher boiling, difficult volatile organic compounds more, has shortened repair time greatly.
After these device Installation and Debugging finish, move according to following embodiment:
At first start soil air lift and ground waste gas Waste Water Treatment (6), Polluted area soil is become negative pressure state, prevent the secondary pollution problem in the original position repair process to greatest extent.Setting air lift system held vacuum is 23KPa, by vavuum pump (21) pollutant and steam are extracted out from air lift well (18), enter gas-liquid separator (20) respectively after air preheat heat exchanger (9) and water cooling heat exchanger (19) heat exchange, wherein gas is sent into exhaust treatment system and is handled back up to standard discharging; Liquid is sent into Waste Water Treatment and is handled rear section up to standard discharging, and part water is sent into water head tank (31) regeneration.In addition, also utilize cooling heat exchanger (19) that the water that enters water head tank (31) is carried out preheating.
Pass through running water system (26) then to water head tank (9) moisturizing, squeeze into superheated steam high frequency generation systems (2) by water pump, the high-frequency heating power (17) of unlatching water preheat in the high frequency electric source heating system (12), for the eddy-current heating in (12) is powered with coil (16), produce heat by the ferrite stainless steel pipe (15) of eddy current effect in (12) simultaneously, and then the water that wherein flows through of heating, the hot water temperature is 85 ℃ by design temperature automatic control system (11), realizes that water preheat reached desired temperature with high frequency electric source heating system (12) auto-control high frequency electric source (17) heating power in 50 seconds.The hot water that produces enters 6 branch lines respectively by pipeline current divider (32), enter into superheated steam production high frequency electric source heating system (13) by flow valve, namely enter ferrite stainless steel pipe in 6 (13), terminate on the high-frequency heating power with coil series connection back two by 6 supporting respectively eddy-current heating, it is 480 ℃ by design temperature automatic control system (11) superheat steam temperature, realizing that superheated steam production was heated 85 ℃ hot water with high frequency electric source heating system (13) auto-control high frequency electric source (17) heating power within 2 minutes becomes 480 ℃ of superheated steams, and directly enters air-superheated steam mixing original position injected system (5).
Air is squeezed into air cushioning storage tank (3) through air compressor (30) (outlet pressure is 0.75MPa), enter air preheating system (4) then, namely carry out preheating by air preheating heat exchanger (9) in soil air lift and the ground waste gas Waste Water Treatment (6), temperature reaches 105 ℃, send into air-superheated steam mixing original position injected system (5) by check valve (7) again and carry out direct mixed heat transfer, mixing the back gas temperature is 400 ± 10 ℃, and directly injects soil and underground water by injecting well (10).Be 400 ℃ by design temperature automatic control system (11) air-superheated steam mist temperature, can accurately realize this design temperature by regulating high frequency electric source power in the superheated steam high frequency generation systems (2) and the air mass flow of steam flow and air preheating system (4) output automatically.
In repair process, observe organic pollutant removal effect and the groundwater level of required reparation in soil and the underground water pollution zone every day by the 3 mouthfuls of monitor wells (5) that arrange.Continuous repair through 35 days, the Polluted area of repairing through this device all reaches the requirement of soil and underground water target reparation value (referring to table 1 and table 2), has particularly removed high boiling pollutant ortho-aminotoluene (not detecting this pollutant in the underground water) in the underground water.
The detailed example of described enforcement is only in order to illustrate rather than limit the present invention, under the present invention's enlightenment and situation about not breaking away from the scope that claim of the present invention protects do away other forms of accommodation, all within protection domain of the present invention.
Claims (7)
1. one kind is used for organic polluted soil and the underground water original position is administered the device of repairing, it is characterized in that mainly by superheated steam high frequency generation systems, air preheating system, air-superheated steam mixes the original position injected system, soil air lift and ground waste gas Waste Water Treatment, monitor well and connecting line constitute, realize organic polluted soil and the reparation of underground water in situ environment in the following way: water system (1) is connected by water valve with superheated steam high frequency generation systems (2), water in the water system (1) enters superheated steam high frequency generation systems (2) and realizes Fast Heating, and become superheated steam output, send into air-superheated steam then and mix original position injected system (5); Air is squeezed into air cushioning storage tank (3) by air compressor simultaneously, enters air preheating system (4) by air flow valve then, and the air after preheating enters air-superheated steam by check valve (7) and mixes original position injected system (5); Open soil air lift and ground waste gas Waste Water Treatment (6) simultaneously, utilize vavuum pump that the restoring area of superheated steam and air injection is carried out the gas phase extraction by the air lift well that arranges, send into ground waste gas Waste Water Treatment then and handle the back qualified discharge; In repair process, observe the organic pollutant removal effect of required reparation in soil and the underground water pollution zone and the variation of level of ground water by the monitor well (8) that arranges.
2. the device for organic polluted soil and underground water original position improvement reparation as claimed in claim 1 is characterized in that described superheated steam high frequency generation systems (2) is to be made of one or more high frequency electric source heating systems.
3. the device for organic polluted soil and underground water original position improvement reparation as claimed in claim 1 is characterized in that the superheat steam temperature that described superheated steam high frequency generation systems (2) is exported is 110 ℃-600 ℃.
4. the device of repairing of administering for organic polluted soil and underground water original position as claimed in claim 1, it is characterized in that, described air preheating system (4) be by with soil air lift and ground waste gas Waste Water Treatment (6) in the vapour phase heat exchanger (9) that carries out indirect heat exchange realize that air themperature is 45 ℃-110 ℃ after the preheating of exporting.
5. the device of repairing of administering for organic polluted soil and underground water original position as claimed in claim 1, it is characterized in that, it is with after superheated steam and air the mixings direct heat transfer, simultaneously by injection well (10) the organic contaminated soil of injection and underground water that described air-superheated steam mixes original position injected system (5).
6. air as claimed in claim 5-superheated steam mixes original position injected system (5), it is characterized in that, enters the injection well after described superheated steam and the air mixing direct heat transfer, and high-temperature gas mixture body implantation temperature can reach 500 ℃.
7. air as claimed in claim 6-superheated steam mixes original position injected system (5), it is characterized in that, described superheated steam is to set in automatic temperature control system (11) according to the geotechnical property of organic pollution type, content, physicochemical properties and Polluted area in soil and the underground water with air mixing implantation temperature, and realizes this design temperature by the air mass flow that this robot control system(RCS) (11) is regulated high frequency electric source power in the superheated steam high frequency generation systems (2) and steam flow and air preheating system (4) output automatically.
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| CN104815840A (en) * | 2015-04-30 | 2015-08-05 | 太仓百诺纳米科技有限公司 | Method and system for contaminant removal by injecting high-temperature dry gas into soil |
| CN105290097A (en) * | 2015-11-09 | 2016-02-03 | 北京建工环境修复股份有限公司 | In-situ soil heating device and in-situ soil heating decontamination device with same |
| CN105731628A (en) * | 2016-02-05 | 2016-07-06 | 环境保护部环境规划院 | In-situ chemical oxidation repair system and method for underground water polluted by hydrochloric ether |
| CN108856269A (en) * | 2018-06-25 | 2018-11-23 | 安徽建筑大学 | Method for repairing high-concentration polycyclic aromatic hydrocarbon contaminated soil through pressurized rapid reverse airflow thermal desorption thermal oxidation |
| CN112958612A (en) * | 2021-03-09 | 2021-06-15 | 上海格林曼环境技术有限公司 | In-situ thermal desorption method for repairing organic contaminated soil |
| CN114790062A (en) * | 2022-01-24 | 2022-07-26 | 成都理工大学 | Volatile organic waste gas separation device |
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| CN108856269B (en) * | 2018-06-25 | 2019-08-09 | 安徽建筑大学 | Method for repairing high-concentration polycyclic aromatic hydrocarbon contaminated soil through pressurized rapid reverse airflow thermal desorption thermal oxidation |
| CN112958612A (en) * | 2021-03-09 | 2021-06-15 | 上海格林曼环境技术有限公司 | In-situ thermal desorption method for repairing organic contaminated soil |
| CN114790062A (en) * | 2022-01-24 | 2022-07-26 | 成都理工大学 | Volatile organic waste gas separation device |
| CN114790062B (en) * | 2022-01-24 | 2023-06-09 | 成都理工大学 | Volatile organic waste gas separation device |
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