CN111299311A - Multiphase extraction coupling recharge processing system - Google Patents
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- CN111299311A CN111299311A CN202010224929.8A CN202010224929A CN111299311A CN 111299311 A CN111299311 A CN 111299311A CN 202010224929 A CN202010224929 A CN 202010224929A CN 111299311 A CN111299311 A CN 111299311A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B09C2101/00—In situ
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention discloses a multiphase extraction coupling recharge treatment system, which comprises extraction equipment, gas phase treatment equipment, a monitoring system and water treatment equipment, wherein one end of the extraction equipment extends into the ground, the other end of the extraction equipment is respectively connected with the gas phase treatment equipment and the water treatment equipment, and polluted water obtained by separation of the gas phase treatment equipment is connected into the water treatment equipment; monitoring system is used for detecting pollutant concentration and the pressure variation condition in the contaminated soil gas phase, processing system still includes recharging well and recharging equipment, and the one end of recharging well stretches into the below ground, and the other end of recharging well is connected with the one end of recharging equipment, and the other end and the water treatment facilities of recharging equipment are connected. Has the advantages that: the newly-added recharge system avoids water resource waste, maintains the stability of the geological structure, optimizes the structure of the extraction equipment and ensures that the treatment effect of the multiphase extraction treatment technology is better.
Description
Technical Field
The invention relates to the technical field of volatile organic pollution treatment, in particular to a multiphase extraction coupling recharge treatment system.
Background
The organic pollutants in the soil mainly come from organic pesticides and industrial three wastes. The excessive use of pesticides, organic pollutants enter underground environment due to improper manual operation in the processes of production, use and waste storage of industries such as chemical industry, petroleum and the like, soil and underground water pollution is caused, and great harm and hidden danger are generated to the production and life of human beings. Volatile organic pollution is different from other pollution types and has strong volatility, so that unlike other pollutants, the volatile organic pollution is absorbed by plants, enters a biological chain and is transferred, but is continuously desorbed from soil, and is slowly released in a long period of time, even permeates into underground water and expands a pollution zone along with the flow of the underground water. At present, domestic treatment technologies applied to organic contaminated soil are mainly divided into three categories: microbial remediation techniques, chemical remediation techniques and physical remediation techniques. The microbial remediation technology is to degrade organic pollutants in soil by using indigenous or inoculated microorganisms (such as fungi, bacteria or other microorganisms) and remove the organic pollutants by adjusting strengthening means such as carbon source, nutrient, oxygen or moisture. The efficiency of microbial remediation techniques is greatly affected by factors such as microbial species, soil properties, geological and chemical conditions, and the like, and has high requirements for nutrient conditions in soil. In addition, in the implementation process of the technology, the temperature, the pH value, the moisture and the like of a site need to be controlled to enable the site to meet the living environment conditions of microorganisms, so that the repairing effect is difficult to guarantee. Chemical remediation techniques involve adding an oxidizing agent to organically contaminated soil and converting the contaminant into an intermediate or end product that is less toxic or more readily biodegradable by nature through an oxidation reaction. When the chemical remediation technology is used, the chemical remediation technology has relevant requirements on site hydrogeological conditions such as permeability coefficient, particle size distribution and porosity of soil and soil physicochemical properties such as pH value and oxidation-reduction potential, excessive oxidants are added in the remediation process, so that secondary pollution is easy to generate, and meanwhile, incomplete remediation is easy to cause due to insufficient contact of chemical agents and polluted soil. The physical repair technology mainly comprises a thermal desorption technology, a multiphase extraction technology and a water washing technology, the thermal desorption technology has high energy consumption aiming at volatile organic compounds, and the water washing technology can generate polluted wastewater. The multiphase extraction technology extracts the pollutants from the underground polluted area to the ground for treatment by a vacuum extraction means, and the method has the advantages of low treatment energy consumption, simple equipment structure and low cost, thereby becoming a first-push technology for treating volatile organic polluted soil and underground water.
In the implementation process of the multiphase extraction technology, the underground water and the polluted soil are respectively treated, and after a large amount of sewage is pumped out of the stratum, under the condition of not recharging in time, not only is the waste of water resources caused, but also the stability of the geological structure is influenced, even the stratum sinks, and the future development and utilization of the site are not facilitated.
In view of the above, a new treatment system for volatile organic contaminated soil groundwater is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a multiphase extraction coupling recharge treatment system, provides a new treatment system for volatile organic polluted soil and underground water, innovatively adds the recharge system on the basis of the prior art, avoids water resource waste caused by the multiphase extraction technology, keeps the stability of a geological structure, does not influence the future development and utilization of the field, optimizes the structure of extraction equipment, and ensures that the treatment effect of the multiphase extraction treatment technology is better.
The aim of the invention is achieved by the following technical measures: a multiphase extraction coupling recharge treatment system comprises extraction equipment, gas phase treatment equipment, a monitoring system and water treatment equipment, wherein one end of the extraction equipment extends into the ground, the other end of the extraction equipment is respectively connected with the gas phase treatment equipment and the water treatment equipment, and polluted water obtained by separation of the gas phase treatment equipment is connected into the water treatment equipment; the monitoring system is used for detecting the pollutant concentration and the pressure change condition in the polluted soil gas phase, the multiphase extraction coupling recharge processing system further comprises a recharge well and recharge equipment, one end of the recharge well extends into the ground, the other end of the recharge well is connected with one end of the recharge equipment, and the other end of the recharge equipment is connected with the water treatment equipment.
Furthermore, the recharging equipment comprises a buffer tank, a recharging water pump, a liquid level controller and a recharging pipe, one end of the recharging water pump is connected with the buffer tank, the other end of the recharging water pump is connected with the recharging pipe, one end of the recharging pipe extends into the recharging well, the buffer tank is communicated with the water treatment equipment, and the liquid level controller is used for controlling the recharging water amount in the buffer tank.
Furthermore, the extraction equipment comprises a plurality of extraction wells, a gas phase extraction pipe and a liquid phase extraction pipe, wherein each extraction well is internally provided with the gas phase extraction pipe and the liquid phase extraction pipe, and the depth of each extraction well is greater than the repair depth of the whole underground water; the 3 extraction wells form one extraction unit, the plane layout of each extraction unit is arranged in an equilateral triangle mode, the 3 extraction wells are arranged at 3 vertex points of the equilateral triangle, and the distance between every two adjacent extraction wells is larger than one time of influence radius and smaller than two times of influence radius.
Further, a monitoring system is arranged in the middle weak-pressure area of the equilateral triangle.
Furthermore, a monitoring system is additionally arranged in the equilateral triangle, and the monitoring system is arranged on the boundary of the 1m extraction area of one of the extraction wells.
Further, the gas phase treatment equipment includes one-level vapour and liquid separator, the heat exchanger, the fan, second grade vapour and liquid separator and active carbon adsorption case, one-level vapour and liquid separator's air inlet and gas phase extraction pipe intercommunication, one-level vapour and liquid separator's gas outlet in proper order with the heat exchanger, the fan, second grade vapour and liquid separator's air inlet is connected, water treatment equipment is all inserted to one-level vapour and liquid separator's delivery port and second grade vapour and liquid separator's delivery port, and second grade vapour and liquid separator's gas outlet and active carbon adsorption case are connected.
Furthermore, the recharging well is arranged at the upstream of the extraction well according to the flow direction of the underground water, and the well depth of the recharging well is the same as that of the extraction well closest to the recharging well.
Further, the bottom of the gas phase extraction pipe in the extraction well is arranged 500 mm-800 mm above the underground water level, and the length of the liquid phase extraction pipe in the extraction well is larger than the whole underground water restoration depth.
Furthermore, sieve gaps are formed in the lower portions of the liquid-phase extraction pipe and the gas-phase extraction pipe, the width of each sieve gap is 1-2 mm, the intervals between the sieve gaps are 150-200 mm, and 50-80-mesh nylon nets are wrapped outside the sieve gap areas.
Furthermore, the screen seam of the liquid phase extraction pipe is opened from the pipe bottom to a position 200 mm-300 mm below the underground water level line, and the length of the pipe section of the gas phase extraction pipe with the screen seam is not less than the longitudinal span of pollution feather in the polluted soil.
Compared with the prior art, the invention has the beneficial effects that: the novel treatment system is provided for volatile organic contaminated soil and underground water, a recharge system is innovatively added on the basis of the prior art, the contaminated soil and the contaminated underground water can be repaired, meanwhile, water resource waste caused by a multiphase extraction technology is avoided, the stability of a geological structure is maintained, and future development and utilization of the site are not influenced. Underground pollution is effectively eliminated through gas phase and liquid phase extraction, polluted ground treatment and groundwater recharge. The structure of the extraction equipment is optimized, so that the treatment effect of the multiphase extraction treatment technology is better.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of a multiphase extraction coupled recharge processing system.
Fig. 2 is a schematic plan view of an extraction well.
The system comprises a recharging well, a recharging pipe, a water treatment device, a water pump, a secondary gas-liquid separator, a secondary activated carbon adsorption tank, a primary gas-liquid separator, a fan, a heat exchanger, a gas-phase extraction pipe, a secondary gas-liquid separator, a heat exchanger, a gas-phase extraction pipe, an extraction well, a liquid-phase extraction pipe, a buffer tank, a recharging water pump, a vacuum pressure gauge, a monitoring well, a control valve and a liquid level controller, wherein the recharging well is 1, the recharging pipe is 2, the water treatment device is 3, the water pump is 4, the secondary gas-liquid separator is 5, the activated.
Detailed Description
As shown in fig. 1 to 2, a multiphase extraction coupling recharge treatment system comprises an extraction device, a vapor treatment device, a monitoring system and a water treatment device 3, wherein one end of the extraction device extends to the ground, the other end of the extraction device is respectively connected with the vapor treatment device and the water treatment device 3, and polluted water obtained by separation of the vapor treatment device is connected to the water treatment device 3; the monitoring system is used for detecting the pollutant concentration and the pressure change condition in the contaminated soil gas phase, the multiphase extraction coupling recharge processing system further comprises a recharge well 1 and recharge equipment, one end of the recharge well 1 extends into the ground, the other end of the recharge well 1 is connected with one end of the recharge equipment, and the other end of the recharge equipment is connected with the water treatment equipment 3. The water treatment system 3 comprises a coagulation regulating reservoir, a sedimentation tank and an oxidation tank, polluted underground water firstly enters the coagulation regulating reservoir, colloidal particles and micro suspended matters in the water are gathered by adding a coagulant and combined with impurities in the water body to form a larger flocculating constituent, the flocculating constituent sinks and separates in the sedimentation tank, the underground water flows into the oxidation tank, an oxidant is added in the oxidation tank to oxidize and decompose organic pollutants in the water, so that the purification treatment of the underground water is completed, and the treated underground water is temporarily stored in a cache tank 13.
The recharging equipment comprises a buffer tank 13, a recharging water pump 14, a liquid level controller 18 and a recharging pipe 2, one end of the recharging water pump 14 is connected with the buffer tank 13, the other end of the recharging water pump 14 is connected with the recharging pipe 2, one end of the recharging pipe 2 extends into the recharging well 1, the buffer tank 13 is communicated with the water treatment equipment 3, and the liquid level controller 18 is used for controlling the recharging water amount in the buffer tank 13. The buffer tank 13 is used for adjusting the amount of the reinjection water and keeping the amount of the reinjection water consistent with the amount of the extraction water in unit time. The liquid level controller 18 monitors the water level in the buffer tank 13 in real time, when the water level in the buffer tank 13 is higher than the preset value of the liquid level controller 18, the liquid level controller 18 controls the recharge water pump 14 to be started, water in the buffer tank 13 is recharged to the underground through the recharge well 1, timely recharge is guaranteed, water resource waste caused by a multiphase extraction technology is avoided, the stability of a geological structure is kept, and future development and utilization of a field are not affected.
The extraction equipment comprises a plurality of extraction wells 11, a gas-phase extraction pipe 10 and a liquid-phase extraction pipe 12, wherein the extraction wells 11 are respectively provided with one gas-phase extraction pipe 10 and one liquid-phase extraction pipe 12 in each extraction well 11, and the depth of each extraction well 11 is greater than the repair depth of the whole underground water; the 3 extraction wells 11 form an extraction unit, the plane layout of each extraction unit is arranged in an equilateral triangle manner, the 3 extraction wells 11 are arranged at 3 vertex points of the equilateral triangle, and the distance between every two adjacent extraction wells 11 is larger than one time of the influence radius and smaller than two times of the influence radius. The liquid phase extraction pipe 12 is connected with the water treatment device 3 through the water pump 4.
And arranging a monitoring system in the middle weak-pressure area of the equilateral triangle.
And a monitoring system is additionally arranged in the equilateral triangle and is arranged on the boundary of the 1m extraction area of one of the extraction wells 11. The monitoring system comprises a monitoring well 16, a detection extraction pipe, a vacuum pressure gauge 15 and a control valve 17, wherein one end of the detection extraction pipe extends into the monitoring well 16, the other end of the detection extraction pipe is sequentially connected with the vacuum pressure gauge 15 and the control valve 17, the vacuum pressure gauge 15 is used for detecting the pressure change in the detection extraction pipe, and when the control valve 17 is opened, the gas in the detection extraction pipe can be connected into the gas inlet of the primary gas-liquid separator 7.
The gas phase treatment equipment comprises a first-stage gas-liquid separator 7, a heat exchanger 9, a fan 8, a second-stage gas-liquid separator 5 and an activated carbon adsorption box 6, wherein an air inlet of the first-stage gas-liquid separator 7 is communicated with a gas phase extraction pipe 10, an air outlet of the first-stage gas-liquid separator 7 is sequentially connected with the heat exchanger 9, the fan 8 and an air inlet of the second-stage gas-liquid separator 5, a water outlet of the first-stage gas-liquid separator 7 and a water outlet of the second-stage gas-liquid separator 5 are connected into the water treatment equipment 3, and an air outlet of the second-stage. Wherein the first-stage gas-liquid separator 7 is used for primary separation of solid particles and large liquid drops carried in gas; the heat exchanger 9 condenses the pollutant components in the gas; solid particles which are not completely separated at the front end and liquid drops formed by condensation are removed after passing through a secondary gas-liquid separator 5; the residual gas enters an activated carbon adsorption box 6 for final adsorption treatment. In the whole gas phase treatment process, gas extraction is realized by the fan 8, the fan 8 adopts a frequency conversion mode, and the frequency is adjusted according to the negative pressure conditions of the extraction well 11 and the monitoring well 16. Firstly carrying out primary gas-liquid separation on the polluted gas containing the polluted components, then carrying out condensation treatment on the polluted gas by a heat exchanger 9, carrying out secondary gas-liquid separation, and finally carrying out activated carbon adsorption treatment to realize that the tail gas reaches the standard and is discharged.
The recharging well 1 is arranged at the upstream of the extraction well 11 according to the flow direction of the underground water, the well depth of the recharging well 1 is the same as that of the extraction well 11 closest to the recharging well 1, and in order to ensure the cleaning effect, the well depths of the extraction well 11 and the recharging well 1 are 0.5m below the polluted underground water level. Treating underground water by pumping-recharging circulation to dilute pollutants dissolved and adsorbed in a submerged layer until the water quality reaches the standard; on one hand, the stratum collapse caused by pumping out the underground water is prevented, and on the other hand, the treatment effect of polluted underground water is ensured. The well depth of the recharging well 1, various parameters of the recharging pipe 2 and the filling between the recharging well 1 and the recharging pipe 2 are all kept consistent with the extraction well 11 with the nearest distance.
The pipe bottom of the gas phase extraction pipe 10 in the extraction well 11 is arranged 500 mm-800 mm above the underground water level, and the length of the liquid phase extraction pipe 12 in the extraction well 11 is larger than the whole underground water restoration depth.
The lower parts of the liquid-phase extraction pipe 12 and the gas-phase extraction pipe 10 are respectively provided with a sieve seam, the width of the sieve seam is 1-2 mm, the sieve seam is 150-200 mm, and a 50-80 mesh nylon net is wrapped outside the sieve seam area.
The screen seam of the liquid phase extraction pipe 12 is opened from the bottom of the pipe to a position 200 mm-300 mm below the underground water level line, and the length of the pipe section of the gas phase extraction pipe 10 with the screen seam is not less than the longitudinal span of pollution feather in the polluted soil.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A multiphase extraction coupling recharging treatment system is characterized by comprising extraction equipment, gas phase treatment equipment, a monitoring system and water treatment equipment, wherein one end of the extraction equipment extends into the ground, the other end of the extraction equipment is respectively connected with the gas phase treatment equipment and the water treatment equipment, and polluted water obtained by separation of the gas phase treatment equipment is connected with the water treatment equipment; the monitoring system is used for detecting the pollutant concentration and the pressure change condition in the polluted soil gas phase, the multiphase extraction coupling recharge processing system further comprises a recharge well and recharge equipment, one end of the recharge well extends into the ground, the other end of the recharge well is connected with one end of the recharge equipment, and the other end of the recharge equipment is connected with the water treatment equipment.
2. The multiphase extraction coupling recharging processing system of claim 1, wherein: the recharging equipment comprises a buffer tank, a recharging water pump, a liquid level controller and a recharging pipe, one end of the recharging water pump is connected with the buffer tank, the other end of the recharging water pump is connected with the recharging pipe, one end of the recharging pipe extends into the recharging well, the buffer tank is communicated with the water treatment equipment, and the liquid level controller is used for controlling the recharging water amount in the buffer tank.
3. The multiphase extraction coupling recharging processing system of claim 1, wherein: the extraction equipment comprises a plurality of extraction wells, a gas phase extraction pipe and a liquid phase extraction pipe, wherein each extraction well is internally provided with the gas phase extraction pipe and the liquid phase extraction pipe respectively, and the depth of each extraction well is greater than the repair depth of the whole underground water; the 3 extraction wells form one extraction unit, the plane layout of each extraction unit is arranged in an equilateral triangle mode, the 3 extraction wells are arranged at 3 vertex points of the equilateral triangle, and the distance between every two adjacent extraction wells is larger than one time of influence radius and smaller than two times of influence radius.
4. The multiphase extraction coupling recharging processing system of claim 3, wherein: and arranging a monitoring system in the middle weak-pressure area of the equilateral triangle.
5. The multiphase extraction coupling recharging processing system of claim 4, wherein: and a monitoring system is additionally arranged in the equilateral triangle and is arranged on the boundary of the 1m extraction area of one of the extraction wells.
6. The multiphase extraction coupling recharging processing system of claim 3, wherein: the gas phase treatment equipment comprises a first-stage gas-liquid separator, a heat exchanger, a fan, a second-stage gas-liquid separator and an activated carbon adsorption box, wherein an air inlet of the first-stage gas-liquid separator is communicated with a gas phase extraction pipe, an air outlet of the first-stage gas-liquid separator is sequentially connected with the heat exchanger, the fan and an air inlet of the second-stage gas-liquid separator, a water treatment equipment is connected into a water outlet of the first-stage gas-liquid separator and a water outlet of the second-stage gas-liquid separator, and a gas outlet of the second.
7. The multiphase extraction coupling recharging processing system of claim 3, wherein: the recharging well is arranged at the upstream of the extraction well according to the flow direction of the underground water, and the well depth of the recharging well is the same as that of the extraction well closest to the recharging well.
8. The multiphase extraction coupling recharging processing system of claim 3, wherein: the pipe bottom of the gas phase extraction pipe in the extraction well is arranged 500 mm-800 mm above the underground water level, and the length of the liquid phase extraction pipe in the extraction well is larger than the whole underground water restoration depth.
9. The multiphase extraction coupling recharging processing system of claim 3, wherein: the screen joints are formed in the lower portions of the liquid-phase extraction pipe and the gas-phase extraction pipe, the width of each screen joint is 1-2 mm, the screen joints are 150-200 mm, and 50-80-mesh nylon nets are wrapped outside screen joint areas.
10. The multiphase extraction coupled recharge processing system of claim 9, wherein: the screen seam of the liquid phase extraction pipe is opened from the pipe bottom to a position 200 mm-300 mm below the underground water level line, and the length of the pipe section of the screen seam opened on the gas phase extraction pipe is not less than the longitudinal span of pollution feather in the polluted soil.
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| CN202010224929.8A CN111299311A (en) | 2020-03-26 | 2020-03-26 | Multiphase extraction coupling recharge processing system |
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| CN202010224929.8A CN111299311A (en) | 2020-03-26 | 2020-03-26 | Multiphase extraction coupling recharge processing system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN205045840U (en) * | 2014-11-11 | 2016-02-24 | 中环循(北京)环境技术中心 | Source reason groundwater prosthetic devices is taken out to solar energy combined type |
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| CN107552549A (en) * | 2017-08-29 | 2018-01-09 | 武汉都市环保工程技术股份有限公司 | A kind of bio- ventilation strengthens multiphase extraction system in situ |
| CN108114970A (en) * | 2017-12-21 | 2018-06-05 | 永清环保股份有限公司 | A kind of contaminated soil original position thermal desorption repair system and method |
| CN211990239U (en) * | 2020-03-26 | 2020-11-24 | 杰瑞环保科技有限公司 | Multiphase extraction coupling recharge processing system |
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| CN203061547U (en) * | 2013-01-25 | 2013-07-17 | 北京中地泓科环境科技有限公司 | Comprehensive repair system for groundwater chromium pollution fields |
| CN103303986A (en) * | 2013-07-05 | 2013-09-18 | 华北电力大学 | Device and method for periodic in-situ pumping based integrated repairing of groundwater pollution |
| CN205045840U (en) * | 2014-11-11 | 2016-02-24 | 中环循(北京)环境技术中心 | Source reason groundwater prosthetic devices is taken out to solar energy combined type |
| CN204737749U (en) * | 2015-06-24 | 2015-11-04 | 上海市环境科学研究院 | Volatile organic compounds pollutes normal position prosthetic devices of groundwater |
| CN104959373A (en) * | 2015-06-29 | 2015-10-07 | 环境保护部环境规划院 | Gas station soil and underground water heat strengthening multiphase extraction and remediation integrated system and method |
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| CN107185955A (en) * | 2017-05-12 | 2017-09-22 | 清华大学 | Contaminated soil original position eddy current type thermal desorption system |
| CN107552549A (en) * | 2017-08-29 | 2018-01-09 | 武汉都市环保工程技术股份有限公司 | A kind of bio- ventilation strengthens multiphase extraction system in situ |
| CN108114970A (en) * | 2017-12-21 | 2018-06-05 | 永清环保股份有限公司 | A kind of contaminated soil original position thermal desorption repair system and method |
| CN211990239U (en) * | 2020-03-26 | 2020-11-24 | 杰瑞环保科技有限公司 | Multiphase extraction coupling recharge processing system |
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