CN211803057U - Soil and groundwater pollution monitoring and prosthetic integration system - Google Patents
Soil and groundwater pollution monitoring and prosthetic integration system Download PDFInfo
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- CN211803057U CN211803057U CN202020061887.6U CN202020061887U CN211803057U CN 211803057 U CN211803057 U CN 211803057U CN 202020061887 U CN202020061887 U CN 202020061887U CN 211803057 U CN211803057 U CN 211803057U
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Abstract
A soil and groundwater pollution monitoring and restoration integrated system, the monitoring and restoration well includes an aeration pipeline sieve tube with depth lower than the lowest water level of groundwater and a gas phase extraction pipeline sieve tube with depth greater than the highest water level of groundwater, the aeration pipeline sieve tube is connected with an aeration fan through a pipeline, and the aeration fan is connected with an air pipeline; the gas-phase extraction pipeline sieve tube is sequentially connected with a gas-liquid separation tank and a vacuum pump through pipelines, and the vacuum pump is connected with a tail gas treatment system; the output pipeline of the gas-liquid separation tank is connected with a soil gas monitoring system through a sampling pump. The utility model discloses a combine technical method such as vapor extraction restoration, biological aeration restoration advantage and soil gas monitoring, both can restore soil and groundwater that the pollution has taken place, can monitor soil and groundwater that have the potential risk of polluting again to improve repair effect and repair efficiency, and in time responded to the pollution condition, and equipment fixing is simple, and the running cost is low.
Description
Technical Field
The utility model relates to a pollution monitoring and restoration technical field of soil, groundwater.
Background
The gas phase extraction is a repair technology which is widely applied at the present stage for repairing organic pollution in soil and underground water and is used for treating the pollution problem of stratum media in an aeration zone. The basic principle of the vapor extraction is that negative pressure is generated by vacuum pump extraction, when air flows through a polluted area, volatile and semi-volatile organic pollutants in soil pores or underground water are desorbed and carried away by air flow, and are finally treated after being collected by an extraction well, so that the purpose of purifying the aeration zone soil and underground water is achieved. Sometimes, an aeration well can be arranged at the same time of extraction, and air is manually introduced into the soil. The extracted gas is treated by water vapor removal, adsorption and the like and then is discharged into the atmosphere, or corresponding gas treatment technology is adopted according to different pollutants.
The aeration repair technology for groundwater pollution is a novel in-situ repair technology for removing volatile organic compounds in soil and groundwater. The technology is applied to Germany as early as 1985, is considered to be the most effective method for removing volatile organic compounds in saturated soil and underground water, is concerned at present, is adopted in many places to repair the underground water and obtains good effect, and has good application prospect.
At present, bioremediation, vapor extraction remediation technology and aeration remediation technology are only singly utilized for in-situ remediation of applied pollution, and the pollution can be discovered only after the soil and underground water are polluted for a long time and pollutants are accumulated to a certain concentration or a field is developed again, and the pollution can not be discovered in time and can not be initiated to be repaired at the initial stage of the pollution of the soil and the underground water, so that the pollution is diffused continuously, and the economic loss which is difficult to estimate is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide a soil and groundwater pollution monitoring and prosthetic integration system.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a soil and groundwater pollution monitoring and restoration integrated system, the monitoring and restoration well 3 includes the aeration pipeline sieve tube 4 whose depth is lower than the lowest water level of groundwater and the gas phase extraction pipeline sieve tube 5 whose depth is greater than the highest water level of groundwater, the aeration pipeline sieve tube 4 is connected with the aeration fan 1 through the pipeline, the aeration fan 1 is connected with the air pipeline; the gas-phase extraction pipeline sieve tube 5 is sequentially connected with a gas-liquid separation tank 7 and a vacuum pump 10 through pipelines, and the vacuum pump 10 is connected with a tail gas treatment system; the output pipeline of the gas-liquid separation tank 7 is connected with a soil gas monitoring system through a sampling pump 13.
The depth of the aeration pipeline sieve tube 4 is 0.5-1m lower than the lowest water level of the underground water, and the depth of the gas phase extraction pipeline sieve tube 5 is 0.5-1m higher than the highest water level of the underground water.
An aeration pipeline switch 2 is arranged on a pipeline between the aeration pipeline sieve tube 4 and the air blower 1, and the aeration pipeline switch 2 is arranged in the skid-mounted box body 22.
And a gas phase extraction pipeline switch 9 is arranged on a pipeline between the liquid separation tank 7 and the vacuum pump 10.
The tail gas treatment system comprises a tail gas absorption device 11 and a tail gas VOCs detector 12.
The soil gas monitoring system comprises a gas-liquid separator 14 connected with a sampling pump 13, and the gas-liquid separator 14 is connected with an oxygen detector 15, a carbon dioxide detector 16, a VOCs detector 17 and a petroleum hydrocarbon detector 18 through connecting pipelines.
The device also comprises a drainage system, a drainage switch 19 is arranged on a pipeline between the aeration fan 1 and the gas-liquid separation tank 7, a drainage valve 20 is arranged on a drainage pipeline at the lower part of the gas-liquid separation tank 7, and a liquid level meter 8 is arranged on the gas-liquid separation tank 7.
The pipeline between the gas phase extraction pipeline sieve tube 5 and the gas-liquid separation tank 7 is connected with a medicament injection valve 6, and the pipeline between the gas phase extraction pipeline sieve tube 5 and the gas-liquid separation tank 7 is provided with a medicament injection anti-backflow switch 21.
The utility model discloses a soil and groundwater pollution monitoring and prosthetic integrated system, through combining technical method such as vapor extraction restoration, biological aeration restoration advantage and soil gas monitoring, both can restoreing the soil and the groundwater that have taken place the pollution, can monitor the soil and the groundwater that have the potential risk of polluting again to repair effect and remediation efficiency have been improved, and in time respond to the pollution condition, and equipment fixing is simple, and the running cost is low.
Drawings
Fig. 1 is a schematic diagram of the integrated system for monitoring and repairing soil and groundwater pollution.
In the figure: 1-an aeration fan, 2-an aeration pipeline switch, 3-a detection and repair well, 4-an aeration pipeline sieve pipe, 5-a gas-phase extraction pipeline sieve pipe, 6-a medicament injection valve, 7-a gas-liquid separation tank, 8-a liquid level meter, 9-a gas-phase extraction pipeline switch, 10-a vacuum pump, 11-a tail gas absorption device, 12-a tail gas VOCs detector, 13-a sampling pump, 14-a gas-liquid separator, 15-an oxygen detector, 16-a carbon dioxide detector, 17-a VOCs detector, 18-a petroleum hydrocarbon detector, 19-a drainage switch, 20-a drainage valve, 21-a medicament injection anti-backflow switch, 22-a skid box body, 23-site hard covering and 24-underground water level.
Detailed Description
The utility model discloses a soil and groundwater pollution monitoring and prosthetic integration system principle is shown in figure 1, including monitoring and repair well 3, aeration systems, vapor extraction system, loam gas monitoring system, tail gas processing system, drainage system and medicament injection valve 6. The monitoring and repairing well 3 comprises an aeration pipeline sieve pipe 4 with the depth of 0.5-1m lower than the lowest water level of the underground water and a gas phase extraction pipeline sieve pipe 5 with the depth of 0.5-1m higher than the highest water level of the underground water. The aeration system comprises an aeration pipeline sieve tube 4 which is sequentially connected with an aeration pipeline switch 2 and an aeration fan 1 in a skid-mounted box body 22 through pipelines and finally communicated with the outside air. The gas phase extraction system comprises an extraction pipeline sieve tube 5 which is sequentially connected with a chemical injection backflow prevention switch 21, a gas-liquid separation tank 7 in a skid-mounted box body 22, a gas phase extraction pipeline switch 9 and a vacuum pump (10) through pipelines and finally connected with a tail gas treatment system. The tail gas treatment system comprises a tail gas absorption device 11 and a tail gas VOCs detector 12, and the qualified tail gas is directly discharged after final treatment and detection. The soil gas monitoring system is positioned between the gas phase extraction pipeline switch 9 and the vacuum pump 10 and is sequentially connected with a sampling pump 13, a gas-liquid separator 14, an oxygen detector 15, a carbon dioxide detector 16, a VOCs detector 17 and a petroleum hydrocarbon detector 18 by utilizing pipelines. The aeration fan 1, the drainage switch 19, the gas-liquid separation tank 7 and the drainage valve 20 are sequentially connected through a pipeline by the drainage system, and whether the drainage system is started or not is controlled by the liquid level meter 8. The drug injection valve 6 is mainly used for injecting the drug during the rehabilitation process, and the drug injection backflow prevention switch 21 must be closed before the drug is injected.
When the integrated system for monitoring and repairing soil and groundwater pollution works, the aeration fan 1 aerates soil through the aeration pipeline sieve tube 4, the vacuum pump 10 extracts a soil gas sample in a monitored site through the gas phase extraction pipeline sieve tube 5 and the gas-liquid separation tank 7, and the soil gas sample is treated and emptied through the tail gas absorption device 11 and the tail gas VOCs detector 12 of the tail gas treatment system; a sampling pump 13 connected with a pipeline at the front part of the vacuum pump 10 extracts a soil gas sample in a monitored site, gas is separated through a gas-liquid separator 14, and the soil gas is monitored in real time by utilizing a VOCs detector 17 and a petroleum hydrocarbon detector 18 of a soil gas monitoring system. Once organic pollution of soil and underground water occurs, pollution data can be checked in time, and a repair function is started. In the repairing process, the aeration system and the gas phase extraction system work simultaneously to promote the organic matters to be extracted through the gas phase extraction device, and in the aeration process, the oxygen content in the soil is increased, the propagation and metabolism of aerobic microorganisms in the soil are promoted, and the organic pollutants are further adsorbed and degraded.
The utility model discloses combine together vapor extraction, biological aeration restoration technique and soil gas monitoring technique, under soil and groundwater has taken place the condition of polluting, volatile organic compounds in the soil can be got rid of in the vapor extraction, and biological aeration both can strengthen the air current in the soil when vapor extraction, can make again in the soil oxygen content increase, the metabolism ability of microorganism in the reinforcing soil to degradation organic pollutant. Soil and groundwater do not pollute, but when having the potential risk of polluting, the utility model discloses both can restore soil and groundwater that has taken place to pollute, can monitor soil and groundwater that have the potential risk of polluting again to repair effect and repair efficiency have been improved, and in time respond to the pollution condition, and equipment fixing is simple, and the running cost is low. The device is suitable for sites polluted by volatile organic compounds, semi-volatile organic compounds and petroleum hydrocarbons or sites with potential pollution risks, can monitor whether the sites are polluted or not in time, and can open a repairing program after the sites are polluted, so that large-scale diffusion of pollutants is prevented.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a soil and groundwater pollution monitoring and prosthetic integration system which characterized in that: the monitoring and repairing well (3) comprises an aeration pipeline sieve tube (4) with the depth lower than the lowest water level of underground water and a gas phase extraction pipeline sieve tube (5) with the depth larger than the highest water level of the underground water, the aeration pipeline sieve tube (4) is connected with an aeration fan (1) through a pipeline, and the aeration fan (1) is connected with an air pipeline; the gas-phase extraction pipeline sieve tube (5) is sequentially connected with a gas-liquid separation tank (7) and a vacuum pump (10) through pipelines, and the vacuum pump (10) is connected with a tail gas treatment system; an output pipeline of the gas-liquid separation tank (7) is connected with a soil gas monitoring system through a sampling pump (13).
2. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: the depth of the aeration pipeline sieve tube (4) is 0.5-1m lower than the lowest water level of the underground water, and the depth of the gas phase extraction pipeline sieve tube (5) is 0.5-1m higher than the highest water level of the underground water.
3. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: an aeration pipeline switch (2) is arranged on a pipeline between the aeration pipeline sieve tube (4) and the air blower (1), and the aeration pipeline switch (2) is arranged in the skid-mounted box body (22).
4. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: a gas phase extraction pipeline switch (9) is arranged on the pipeline between the liquid separation tank (7) and the vacuum pump (10).
5. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: the tail gas treatment system comprises a tail gas absorption device (11) and a tail gas VOCs detector (12).
6. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: the soil gas monitoring system comprises a gas-liquid separator (14) connected with a sampling pump (13), and the gas-liquid separator (14) is connected with a pipeline and is connected with an oxygen detector (15), a carbon dioxide detector (16), a VOCs detector (17) and a petroleum hydrocarbon detector (18).
7. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: the device also comprises a drainage system, a drainage switch (19) is arranged on a pipeline between the aeration fan (1) and the gas-liquid separation tank (7), a drainage valve (20) is arranged on a drainage pipeline at the lower part of the gas-liquid separation tank (7), and a liquid level meter (8) is arranged on the gas-liquid separation tank (7).
8. The integrated system for monitoring and remediating soil and groundwater pollution as recited in claim 1, wherein: the pipeline between the gas phase extraction pipeline sieve tube (5) and the gas-liquid separation tank (7) is connected with a medicament injection valve (6), and the pipeline between the gas phase extraction pipeline sieve tube (5) and the gas-liquid separation tank (7) is provided with a medicament injection anti-backflow switch (21).
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| CN202020061887.6U CN211803057U (en) | 2020-01-13 | 2020-01-13 | Soil and groundwater pollution monitoring and prosthetic integration system |
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| CN202020061887.6U CN211803057U (en) | 2020-01-13 | 2020-01-13 | Soil and groundwater pollution monitoring and prosthetic integration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102490A (en) * | 2020-01-13 | 2021-07-13 | 大连杰邦环境科技有限公司 | Integrated system and method for monitoring and repairing soil and underground water pollution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102490A (en) * | 2020-01-13 | 2021-07-13 | 大连杰邦环境科技有限公司 | Integrated system and method for monitoring and repairing soil and underground water pollution |
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