CN214683480U - Leaching and pumping treatment system for loose stratum land parcel pollution - Google Patents
Leaching and pumping treatment system for loose stratum land parcel pollution Download PDFInfo
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- CN214683480U CN214683480U CN202120525884.8U CN202120525884U CN214683480U CN 214683480 U CN214683480 U CN 214683480U CN 202120525884 U CN202120525884 U CN 202120525884U CN 214683480 U CN214683480 U CN 214683480U
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Abstract
The utility model relates to a leaching extraction treatment system for loose stratum plot pollution, which increases leaching water quantity by laying a water delivery pipe in a pollution area of the loose stratum plot, increases the mobility of pollutants in a gas-coated zone, accelerates the migration of the pollutants in the gas-coated zone to underground water, and leaches the pollutants in the polluted gas-coated zone which are difficult to treat into the underground water; and pumping out the leached underground water containing the pollutants from the polluted area and the downstream area in the underground water flow direction through an arranged underground water monitoring well. The utility model discloses a lay the raceway increase leaching water yield, accelerate the package gas zone pollutant to groundwater migration through leaching effect to leach the package gas zone pollutant of the difficult pollution of handling to groundwater, the pollutant not only is easy to handle and the treatment cost is low, effectively avoids simultaneously dissolving out the reentrant groundwater of getting into again because of the groundwater water level rises or the rainfall leads to the pollutant in package gas zone, the groundwater quality of water that arouses pollutes repeatedly.
Description
Technical Field
The utility model relates to an environmental engineering technical field, especially a leaching of unconsolidated formation landmass pollution takes processing system out.
Background
At present, pollutants in a chemical industrial park in a unconsolidated stratum often leak and leak vertically through an aeration zone, are firstly adsorbed and intercepted by soil in the aeration zone in the infiltration process, and are then continuously transported downwards to enter underground water after being adsorbed to saturation, the pollutants entering the underground water are often pumped out and treated, but the treatment effect is only limited to the pollutants entering the underground water, and the pollutants in the aeration zone are dissolved and separated out to enter the underground water again when the water level of the underground water rises or the surface water is leached, so that the water quality of the underground water in an affected area is repeatedly deteriorated, the pollution treatment time is prolonged, and meanwhile, for the stratum with poor water-rich property, the aim of artificially increasing the water inflow is fulfilled by leaching, so that effective pumping treatment is realized; the pollutants intercepted by the aeration zone are usually treated by soil replacement, the cost is high, and due to the evaporation and adsorption effects of the pollutants in the underground water in the transportation process, the pollution with a relatively light degree but a larger influence range of the downstream aeration zone is usually caused, and the partial pollution is extremely difficult to carry out large-area soil replacement.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, the utility model aims to provide a leaching extraction treatment system for loose stratum land pollution.
The utility model provides a technical scheme that its technical problem adopted is: a leaching and pumping treatment system for unconsolidated formation plot pollution comprises a leaching system distributed in a contaminated area of unconsolidated formation plot and an extraction system distributed in a contaminated area and a downstream area of the contaminated area in the water flow direction of underground water;
the leaching system includes: the water delivery pump, the water delivery pipe and the spray pipe connected with the water delivery pipe; the extraction system comprises: the water suction pipe of the water suction pump extends into the underground water monitoring well.
Preferably, the water level descending area of the descending funnel formed by pumping the distributed underground water monitoring well covers the pollution area and the secondary pollution area, the range of the pollution area is controlled, the pollution area is limited to be enlarged, and pollutants are effectively leached and pumped out in the controllable area.
Preferably, the setting depth of the underground water monitoring well is as follows: more than 1m of the underground water is above the water level in the water-rich period, more than 1m of the underground water is below the water level in the water-poor period, and the underground water containing pollutants can be effectively pumped all the year round.
Preferably, a strainer is arranged in the underground water monitoring well, the outer diameter of the strainer is not less than phi 146mm, enough water pumping amount can be kept, and a good effective extraction effect is achieved.
Preferably, the water delivery pipe of the leaching system is provided with a regulating valve for regulating water quantity, the water quantity can be regulated according to the concentration of pollutants and the permeability coefficient of the aeration zone, the leaching water quantity is regulated from small to large, the optimal leaching treatment effect is achieved without exceeding the underground water pumping treatment capacity of the monitoring well.
Preferably, the shower pipes of the leaching system are buried in the polluted area shallowly, so that the evaporation of water quantity can be reduced, the leaching quantity is increased, and the leaching is accelerated.
The utility model has the advantages that: the water delivery pipes are arranged in the pollution area manually to increase the leaching water quantity, increase the mobility of pollutants in the aeration zone, accelerate the migration of the pollutants in the aeration zone to underground water, and leach the pollutants in the aeration zone which are difficult to treat into the underground water; and pumping out the leached underground water containing the pollutants from the polluted area and the downstream area in the underground water flow direction by arranging an underground water monitoring well. The pollution treatment cost of the system is low, and the problem that the water quality of the underground water is repeatedly polluted because pollutants in the aeration zone are dissolved and separated out and enter the underground water again due to the rising of the water level of the underground water or rainfall is effectively avoided.
The water level descending area of the descending funnel formed by pumping of the distributed underground water monitoring well covers the pollution area and the secondary pollution area, the pollution area is prevented from being enlarged, pollution is effectively leached and pumped out in the controllable area, and the effect of removing pollutants is achieved.
The setting depth of the underground water monitoring well is as follows: more than 1m of the underground water is above the water level in the water-rich period, more than 1m of the underground water is below the water level in the water-poor period, and the underground water containing pollutants can be effectively pumped all the year round.
The water delivery pipe of the leaching system is provided with a regulating valve for regulating water quantity, and the water quantity can be regulated according to the concentration of pollutants and the permeability coefficient of the aeration zone, so that the optimal leaching treatment effect is achieved.
The utility model discloses a pollution treatment is with low costs, the treatment effeciency is high, the processing speed is fast, no secondary pollution, has realized restoring the normal position of polluting soil, has fine spreading value.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
Fig. 2 is a schematic diagram of the present invention.
Parts and numbering in the figures:
1-a leaching system; 2-an extraction system; 11-a spray pipe; 12-a water conveying pipe; 13-a water delivery pump; 21-underground water monitoring well; 22-a water pump; 100-contaminated area; 200-aeration zone; 300-secondary pollution area; 400-water level in the rich water period; 500-water level in dry season.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-2, a leaching and pumping treatment system for loose formation block pollution comprises a leaching system 1 distributed in a pollution area 100 of the loose formation block and an extraction system 2 distributed in the pollution area 100 and a downstream area in the groundwater flow direction;
the leaching system 1 comprises: a water delivery pump 13, a water delivery pipe 12 and a spray pipe 11 connected with the water delivery pipe; the extraction system 2 comprises: the device comprises an underground water monitoring well 21 and a water suction pump 22, wherein a water suction pipe of the water suction pump 22 extends into the underground water monitoring well 21.
Fig. 1 is a schematic structural diagram of a system, and fig. 2 is an implementation diagram of a top view, and the implementation process is as follows:
A. arranging the water conveying pipe 12 in the pollution area 100 of the unconsolidated formation plot to increase the mobility of pollutants in the aeration zone 200, accelerate the migration of the pollutants in the aeration zone 200 to underground water and leach the pollutants in the pollution aeration zone 200 which are difficult to treat into the underground water;
B. in the polluted region 100 and the groundwater flow direction downstream region thereof, the groundwater monitoring wells 21 are used, which are already or additionally arranged, and the groundwater containing the pollutants which is leached and filtered out is pumped out and treated through the groundwater monitoring wells 21.
The arrow to the right in fig. 1 and 2 indicates the groundwater flow direction.
As shown in fig. 1 and 2, a water conveying pipe 12 arranged in the polluted area 100 is connected with a spray pipe 11 and a water conveying pump 13 to form a leaching system 1; in the polluted region 100 and the downstream region in the groundwater flow direction thereof, the groundwater monitoring well 21 and the water suction pump 22 are arranged to constitute the extraction system 2.
The distributed underground water monitoring well 21 pumps water to form a falling funnel water level descending area which covers the pollution area 100 and the secondary pollution area 300, so that pollution control is realized, the pollution range is limited to be expanded, and pollutants are effectively leached and pumped out in a controllable area.
The setting depth of the underground water monitoring well 21 is as follows: more than 1m of the underground water is above the water level 400 in the water abundance period, more than 1m of the underground water is below the water level 500 in the dry period, the underground water containing pollutants can be effectively pumped all the year round, the underground water monitoring well 21 is internally provided with a water filtering pipe, the outer diameter is not less than phi 146mm, the sufficient water pumping amount can be kept, and the good effective extraction effect is realized.
The water delivery pipe 12 of the leaching system 1 is provided with a regulating valve for regulating water quantity, the water quantity can be regulated according to the concentration of pollutants and the permeability coefficient of the aeration zone 200, the leaching water quantity is regulated from small to large, the optimal leaching treatment effect is achieved by not exceeding the underground water pumping treatment capacity of the distributed underground water monitoring well 21.
The shower pipes 11 of the leaching system 1 may be installed on the surface of the contaminated area 100, or may be buried shallowly, preferably in a shallowly buried manner, so as to reduce the evaporation of water and accelerate the leaching effect.
Through raceway 12 can add edible level surfactant active in the leaching aquatic, strengthen the dissolving effect to the pollutant, realize more effective leaching effect, reach the purpose of handling simultaneously polluted soil and groundwater.
In this description, the invention has been described with reference to specific embodiments thereof, but it will be evident that various modifications may be made without departing from the scope of the invention. The description is thus to be regarded as illustrative instead of limiting.
Claims (6)
1. A leaching and pumping treatment system for unconsolidated formation plot pollution is characterized by comprising a leaching system (1) distributed in a contaminated area of unconsolidated formation plot and an extraction system (2) distributed in the contaminated area and a downstream area of the contaminated area in the water flow direction of underground water;
the leaching system (1) comprises: a water delivery pump (13), a water delivery pipe (12) and a spray pipe (11) connected with the water delivery pump; the extraction system (2) comprises: the underground water monitoring system comprises an underground water monitoring well (21) and a water suction pump (22), wherein a water suction pipe of the water suction pump (22) extends into the underground water monitoring well (21).
2. A leaching and pumping treatment system for unconsolidated formation parcel contamination according to claim 1 wherein groundwater monitoring wells (21) are deployed to pump water to form a down funnel level fall area covering the contaminated and secondary contaminated areas.
3. A leaching and extraction treatment system for unconsolidated formation parcel contamination according to claim 1 wherein the groundwater monitoring wells (21) are set at a depth of: more than 1m is above the water level in the groundwater rich period, and more than 1m is below the water level in the dry period.
4. A leaching and extraction treatment system for loose formation land parcel contamination according to claim 1, wherein a strainer is provided in the groundwater monitoring well (21) and has an outer diameter not less than phi 146 mm.
5. Leaching and pumping treatment system for unconsolidated formation parcel contamination according to claim 1, wherein the water delivery pipe (12) of the leaching system (1) is provided with an adjusting valve for adjusting the amount of water.
6. A leaching and extraction treatment system for loose formation parcel contamination according to claim 1, wherein the shower (11) of the leaching system (1) is shallowly buried in the contaminated area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120525884.8U CN214683480U (en) | 2021-03-12 | 2021-03-12 | Leaching and pumping treatment system for loose stratum land parcel pollution |
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| CN202120525884.8U CN214683480U (en) | 2021-03-12 | 2021-03-12 | Leaching and pumping treatment system for loose stratum land parcel pollution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893431A (en) * | 2021-03-12 | 2021-06-04 | 四川省地质工程勘察院集团有限公司 | Leaching extraction treatment method and system for loose stratum land block pollution |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893431A (en) * | 2021-03-12 | 2021-06-04 | 四川省地质工程勘察院集团有限公司 | Leaching extraction treatment method and system for loose stratum land block pollution |
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