CN212924621U - Device for treating organic pollutants in underground water based on hydraulic control condition - Google Patents
Device for treating organic pollutants in underground water based on hydraulic control condition Download PDFInfo
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- CN212924621U CN212924621U CN202020566334.6U CN202020566334U CN212924621U CN 212924621 U CN212924621 U CN 212924621U CN 202020566334 U CN202020566334 U CN 202020566334U CN 212924621 U CN212924621 U CN 212924621U
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Abstract
The utility model belongs to the technical field of groundwater pollution treatment, in particular to a device for treating organic pollutants in groundwater based on hydraulic control conditions, which comprises an extraction system arranged near the center of a pollution feather, wherein the system extracts underground polluted water, preliminarily purifies the underground polluted water through an integrated facility for water treatment on the ground and stores the underground polluted water in a reservoir; a reinjection well on the periphery of the pumping well reinjects water in the reservoir into the underground aquifer; the device also comprises an organic pollutant treatment system arranged between the pumping well and the reinjection well, and the organic pollutant treatment system comprises a closed chemical oxidation wall and a floating oil adsorption wall, wherein the floating oil adsorption wall is arranged near the underground water line and used for adsorbing light organic pollutants, and the chemical oxidation wall is arranged in the aquifer and is positioned on the inner side of the floating oil adsorption wall and used for oxidizing part of organic pollutants dissolved in the underground water. The utility model discloses an intermediate extraction, recharge all around and accelerate groundwater circulation, carry out the integrated treatment to the organic pollutant in the groundwater, improve the groundwater quality.
Description
Technical Field
The utility model belongs to the technical field of groundwater pollution treatment, concretely relates to organic pollutant processing apparatus to groundwater under based on hydraulic control condition.
Background
Ground water (ground water) is water present in the gaps between rocks below the ground, and in a narrow sense is water in a saturated aquifer below the surface of the ground water. In the national standard hydrogeological terminology (GB/T14157-93), groundwater refers to various forms of gravitational water buried below the surface of the earth.
At present, groundwater in certain regions of China is polluted to a certain extent due to the influence of different environments and geology, so that water containing toxic substances can permeate into the groundwater, the groundwater pollution is caused, the existing groundwater is not suitable to be directly used as domestic water, therefore, the groundwater needs to be pumped out for purification treatment, most of the prior art is heavy metal pollution treatment or pumping treatment, few in-situ treatments aiming at organic pollution are carried out, the water treatment is not thorough, and the public uses the groundwater and has certain potential safety hazards.
In view of the above, the present invention provides a device for treating organic pollutants in groundwater based on hydraulic control, which is used for comprehensively treating organic pollutants in groundwater to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a to organic pollutant processing apparatus in groundwater under the hydraulic control condition, the utility model discloses the device passes through the water conservancy control measure, arouses the groundwater flow field for groundwater adsorbs the wall through the oil slick and carries out oxidation treatment in order to handle a large amount of water-insoluble organic pollutants, and the organic pollutant of remaining a small amount of dissolution carries out oxidation treatment through chemical oxidation wall.
The to-be-solved technical problem of the utility model is realized through following technical scheme: the device comprises an extraction system provided with a pollution plume center, wherein the extraction system consists of a plurality of pumping wells which are uniformly distributed, each pumping well is correspondingly provided with a pumping pump, and the pumping pumps pump underground polluted water out of the ground and store the polluted water in a reservoir after the polluted water is subjected to preliminary purification treatment through a water treatment integrated facility arranged on the ground;
the water pumping system comprises a water pumping well, a water storage tank and a reinjection system, wherein the reinjection system comprises a plurality of reinjection wells uniformly arranged on the periphery of the water pumping well, and each reinjection well is connected with the water storage tank through a connecting pipeline and is used for reinjecting water in the water storage tank into an underground aquifer;
still including setting up the organic pollutant processing system between pumped well and reinjection well, organic pollutant processing system is including setting up in proper order at pumped well periphery, confined chemical oxidation wall and confined oil slick adsorption wall, oil slick adsorption wall top sets up in the aeration zone, and oil slick adsorption wall bottom sets up in the aquifer for adsorb the light organic pollutant of floating on the groundwater surface, the chemical oxidation wall is installed in the aquifer, and is located oil slick adsorption wall is inboard, is used for oxidizing oil slick adsorption wall unadsorbed organic pollutant.
Further, the pumping well is single well, the well casing of pumping well comprises casing pipe and strainer, the casing pipe sets up in the aeration zone, the strainer sets up in the aquifer, the strainer bottom is sealed with the shutoff.
Furthermore, the water filter pipe adopts a slotted sieve pipe with the slot width of 0.2-0.5 mm.
Furthermore, quartz sand with the particle size of 1-2 mm is filled between the water filtering pipe and the well hole of the pumping well.
Furthermore, the materials of the casing pipe and the water filter pipe are 304 or 316 stainless steel.
Furthermore, a booster pump is installed on a connecting pipeline of the reinjection well and the reservoir.
Furthermore, each pumping well is provided with a plurality of reinjection wells for improving the reinjection rate.
Further, the closed shapes of the chemical oxidation wall and the floating oil adsorption wall are circular or polygonal.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a device for treating organic pollutants in underground water based on hydraulic control conditions, which takes out underground polluted water through an extraction system consisting of a plurality of pumping wells uniformly arranged near a polluted feather center, and stores the underground polluted water in a reservoir after removing floating organic pollutants on the surface of the water through preliminary purification treatment of an integrated facility of water treatment on the ground, and then a reinjection system consisting of a plurality of reinjection wells reinjection the preliminarily purified water in the reservoir into an underground aquifer, in particular to arrange the organic pollutant treatment system between the pumping wells and the reinjection wells, wherein the treatment system sequentially comprises a closed chemical oxidation wall and a closed floating oil adsorption wall which are arranged at the periphery of the pumping wells, the floating oil adsorption wall is arranged near an underground water line, namely the top of the floating oil adsorption wall is arranged in an aeration zone, and the bottom of the floating oil adsorption wall is arranged in the aquifer, the chemical oxidation wall is arranged on the inner side of the floating oil adsorption wall and used for oxidizing pollutants which are not adsorbed by the floating oil adsorption wall, and the chemical oxidation wall is arranged in the aquifer; the device accelerates the circulation of underground water through continuous extraction in the middle and recharging around, comprehensively treats organic pollutants in the underground water, and improves the quality of the underground water.
2. The utility model relates to a to organic pollutant processing apparatus in groundwater under the hydraulic control condition, the utility model discloses the device is based on under the hydraulic control condition, will take out except that to handle and the normal position is handled and is combined together, carries out comprehensive treatment to organic pollutant, and its simple structure can effectively get rid of the organic pollutant in the groundwater, guarantees the quality of public domestic water.
Drawings
FIG. 1 is a schematic sectional view of the groundwater treatment apparatus of the present invention;
FIG. 2 is a schematic view of the pumping well/water injection well structure of the groundwater treatment device of the present invention;
fig. 3 is a schematic plan view of the groundwater treatment device of the present invention.
In the figure: 1. pumping a water well; 2. a chemical oxidation wall; 3. a floating oil adsorption wall; 4. a reinjection well; 5. an aeration zone; 6. an aqueous layer; 7. an underground water line; 8. a water pump; 9. a water treatment integrated facility; 10. a reservoir; 11. a pressure pump; 12. a casing pipe; 13. a water filter pipe; 14. bentonite; 15. quartz sand; 16. and (3) concrete.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
Example (b): the utility model discloses groundwater processing apparatus refers to and refers to fig. 1-3, a processing apparatus for organic pollutant in groundwater based on hydraulic control condition, including setting up the extraction system near pollution feather center, the extraction system comprises a plurality of pumping wells 1 of evenly distributed, every pumping well 1 is disposed with the suction pump 8 correspondingly, the suction pump 8 takes the polluted groundwater out ground, and through the water treatment integration facility 9 installed on ground preliminary purification treatment after storage in the cistern 10, as shown in this embodiment figure 3, four pumping wells 1 are uniformly arranged in the central range of the pollution feather, the polluted underground water is pumped out by a pumping pump 8 and sent to a water treatment integrated facility 9 arranged on the ground, the contaminated groundwater may be initially treated by the integrated water treatment facility 9 to obtain initially purified water for storage in the reservoir 10.
The utility model also comprises a reinjection system, the reinjection system comprises a plurality of reinjection wells 4 which are uniformly arranged on the periphery of the extraction system, each reinjection well 4 is connected with the reservoir 10 through a connecting pipeline and is used for reinjecting water after the primary purification treatment of the water treatment integrated facility 9 into the underground aquifer 6, in order to ensure the reinjection efficiency, the following two measures are taken, firstly, a pressure pump 11 is arranged on the connecting pipeline of the reinjection well 4 and the reservoir 10; secondly, each pumping well 1 is provided with a plurality of reinjection wells 4, for example, each pumping well 1 is provided with two reinjection wells 4 in the embodiment.
Specifically, the depth of the pumping well 1 is 20m, the water level burial depth is 12m, the aquifer is 8m, and the well diameter r is 0.055 m. The amount of wastewater treated by the water treatment integrated facility 9 per hour and the size of the reservoir are calculated according to the water yield of the pumping well, the pumping amount of each pumping well is calculated according to a formula in a water supply hydrology and geology manual, and the calculation formula is as follows:
the depth of fall S is half the thickness of the aquifer, i.e. 4m, calculated to be Q13.82 m3H is used as the reference value. Namely, the water treatment integrated facility is arranged to treat the wastewater with the amount of 60m per hour3The size of the water storage tank of the left and right devices is 1.2 times of the water pumping amount every day, namely 1600m3The specifications of the water reservoirs 10 are sequentially set.
As shown in fig. 2, the pumping well 1 and the reinjection well 4 are both single open wells, and the structures of the pumping well 1 and the reinjection well are the same, and the following is specifically described by taking the pumping well 1 as an example: the pumping well 1 comprises a shaft, a casing pipe, a filler, a well platform and the like, wherein a well pipe of the pumping well 1 comprises a casing pipe 12 and a strainer pipe 13, the casing pipe 12 is arranged in an aeration zone 5, the strainer pipe 13 is arranged in a water-bearing stratum 6, the bottom of the strainer pipe 13 is sealed by a pipe plug, if the embodiment is adopted, the strainer pipe 13 is arranged between 11.5m and 20m below the ground, the other parts of the well pipe 12 are arranged, bentonite 14 with the diameter of 20 to 40mm is filled between the casing pipe 12 and the well hole, and the well platform is filled and constructed by concrete 16.
Preferably, the casing pipe 12 and the strainer pipe 13 are made of 304 or 316 stainless steel, the strainer pipe 12 is a slotted screen pipe with a slot width of 0.2-0.5 mm, and quartz sand 15 with a particle size of 1-2 mm is filled between the strainer pipe 13 and the well bore of the pumping well 1, so that fine particles in a water-containing layer are prevented from being extracted as much as possible, the pumping pump is prevented from being damaged, and the difficulty in subsequent purification treatment of polluted water is reduced.
As shown in fig. 1 and 3, the utility model discloses still include the organic pollutant processing system who sets up between pumped well 1 and reinjection well 4, organic pollutant processing system is including setting up in proper order in the extraction system periphery, confined chemical oxidation wall 2 and confined oil slick adsorption wall 3, wherein, oil slick adsorption wall 3 partly is located aquifer 6, another part is located aeration zone 5, namely oil slick adsorption wall 3 sets up near secret waterline 7, oil slick adsorption wall 3 top sets up in aeration zone 5, oil slick adsorption wall 3 bottom sets up in aquifer 6, oil slick adsorption wall 3 principal ingredients are chemical fibre fabric and active carbon, be used for adsorbing the light organic pollutant that floats on the surface of water underground; the chemical oxidation wall 2 is arranged in the aquifer 6 and is positioned at the inner side of the floating oil adsorption wall 3, and the chemical reaction wall 2 is of a scrap iron type and is used for oxidizing part of organic pollutants dissolved in underground water.
Specifically, the floating oil adsorption wall 3 is arranged between 10 and 14m away from the ground and is 0.5m thick; the chemical oxidation wall 2 is arranged on the inner side of the floating oil adsorption wall 3 and is 5m away from the floating oil adsorption wall, and the chemical reaction wall 2 is arranged between 12 and 20m away from the ground and is 1m thick; the chemical oxidation wall 2 and the floating oil adsorption wall 3 are closed in a circular or polygonal shape, such as a quadrangle in this embodiment.
The utility model relates to a to organic pollutant processing apparatus in groundwater under the hydraulic control condition, to take out and handle and the normal position is handled and combine together, carry out the preliminary purification treatment in ground after extracting the contaminated water through the suction pump, then in pouring into the aquifer with the water that preliminary purifies into, simply understand for the centre and draw water, water injection on every side, arouse the groundwater flow field, groundwater circulation with higher speed, accelerate groundwater and adsorb the wall through the oil slick, thereby a large amount of insoluble organic pollutants of processing, a small amount of dissolved organic pollutants pass through the chemical oxidation wall and restore, in order to realize carrying out integrated treatment to organic pollutants, improve the groundwater quality.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. A device for treating organic pollutants in underground water based on hydraulic control conditions is characterized in that: the device comprises an extraction system arranged in the center of a pollution plume, wherein the extraction system consists of a plurality of pumping wells (1) which are uniformly distributed, each pumping well (1) is correspondingly provided with a pumping pump (8), and the pumping pumps (8) pump underground polluted water out of the ground and store the polluted water in a reservoir (10) after primary purification treatment through a water treatment integrated facility (9) arranged on the ground;
the water-saving system is characterized by further comprising a reinjection system, wherein the reinjection system comprises a plurality of reinjection wells (4) which are uniformly arranged on the periphery of the pumping well (1), each reinjection well (4) is connected with the water storage tank (10) through a connecting pipeline and is used for reinjecting water in the water storage tank (10) into the underground aquifer (6);
still including setting up the organic pollutant processing system between pumped well (1) and reinjection well (4), organic pollutant processing system is in proper order including setting up in pumped well (1) periphery, confined chemical oxidation wall (2) and confined oil absorption wall (3), oil absorption wall (3) top sets up in aeration zone (5), and oil absorption wall (3) bottom sets up in aquifer (6) for adsorb the light organic pollutant of floating on the groundwater surface, chemical oxidation wall (2) are installed in aquifer (6) and are located oil absorption wall (3) are inboard, are used for oxidizing oil absorption wall (3) unadsorbed organic pollutant.
2. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 1, wherein: the pumping well (1) is single well, the well casing of pumping well (1) comprises casing pipe (12) and strainer (13), casing pipe (12) set up in aeration zone (5), strainer (13) set up in aquifer (6), strainer (13) bottom is sealed with the shutoff.
3. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 2, wherein: the strainer (13) is a slotted sieve tube with a slot width of 0.2-0.5 mm.
4. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 2, wherein: and quartz sand (15) with the particle size of 1-2 mm is filled between the water filter pipe (13) and the well hole of the pumping well (1).
5. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 2, wherein: the casing pipe (12) and the water filter pipe (13) are both made of 304 or 316 stainless steel.
6. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 1, wherein: and a pressure pump (11) is arranged on a connecting pipeline of the reinjection well (4) and the water storage tank (10).
7. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 6, wherein: each pumping well (1) is provided with a plurality of reinjection wells (4) for improving the reinjection rate.
8. The device for treating organic pollutants in underground water based on hydraulic control conditions as claimed in claim 1, wherein: the closed shapes of the chemical oxidation wall (2) and the floating oil adsorption wall (3) are circular or polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020566334.6U CN212924621U (en) | 2020-04-16 | 2020-04-16 | Device for treating organic pollutants in underground water based on hydraulic control condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020566334.6U CN212924621U (en) | 2020-04-16 | 2020-04-16 | Device for treating organic pollutants in underground water based on hydraulic control condition |
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| CN212924621U true CN212924621U (en) | 2021-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502193A (en) * | 2022-10-25 | 2022-12-23 | 生态环境部南京环境科学研究所 | Complete equipment and method for repairing polluted site based on in-situ thermal desorption technology |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502193A (en) * | 2022-10-25 | 2022-12-23 | 生态环境部南京环境科学研究所 | Complete equipment and method for repairing polluted site based on in-situ thermal desorption technology |
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