CN118125542A - Underground water vapor floating precipitation repairing device - Google Patents
Underground water vapor floating precipitation repairing device Download PDFInfo
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- CN118125542A CN118125542A CN202410426798.XA CN202410426798A CN118125542A CN 118125542 A CN118125542 A CN 118125542A CN 202410426798 A CN202410426798 A CN 202410426798A CN 118125542 A CN118125542 A CN 118125542A
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- underground water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000001556 precipitation Methods 0.000 title claims description 51
- 238000004062 sedimentation Methods 0.000 claims abstract description 191
- 238000005273 aeration Methods 0.000 claims abstract description 14
- 239000013049 sediment Substances 0.000 claims abstract description 11
- 239000003673 groundwater Substances 0.000 claims description 21
- 238000005067 remediation Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- 238000007740 vapor deposition Methods 0.000 claims 3
- 239000000443 aerosol Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 27
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 9
- 230000008439 repair process Effects 0.000 abstract description 8
- 239000003814 drug Substances 0.000 abstract description 2
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 2
- 239000008346 aqueous phase Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000005192 partition Methods 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides an underground water floatation sedimentation repairing device which comprises an air floatation tank, a sedimentation tank, a connecting pipe, a sediment discharge pipe, a dosing pipe, a water outlet pipe and an oil outlet channel, wherein a water inlet pipe and an aeration pipe are arranged in the air floatation tank, and an oil outlet weir is arranged at the top of the air floatation tank and connected with the oil outlet pipe; one end of the connecting pipe is connected with the lower part of the air floatation tank, and the other end of the connecting pipe is connected with the upper part of the sedimentation tank; the sediment discharge pipe is arranged at the bottom of the sedimentation tank, and the medicine adding pipe, the water outlet pipe and the oil outlet channel are all arranged at the top of the sedimentation tank. The underground water-air floatation sedimentation repairing device provided by the invention can quickly and effectively repair the underground water polluted by the light non-aqueous liquid and heavy metal.
Description
Technical Field
The invention belongs to the technical field of groundwater pollution treatment, and particularly relates to an underground water-air floatation sedimentation repairing device.
Background
Soil pollution in industrial sites is characterized by diversity and complexity, various pollutants enter soil and groundwater to form different forms, wherein organic pollutants which are difficult to dissolve in water enter groundwater environment, and non-aqueous phase liquids (NAPLs) can be formed when the concentration exceeds the solubility. Wherein light non-aqueous liquids (LNAPLs) float on the surface of groundwater. Part of heavy metal ions are also dissolved in the groundwater to form a composite polluted water body. However, the non-aqueous phase liquid is different from the heavy metal repair process, so that a complex repair technology and equipment are required for repair, the repair process is complex, and the required equipment is more.
Disclosure of Invention
The invention aims to solve the technical problems that: the underground water vapor-phase precipitation restoration device can quickly and effectively restore underground water polluted by light non-aqueous liquid and heavy metal.
In order to solve the technical problems, the embodiment of the invention adopts the following technical scheme:
The embodiment of the invention provides an underground water-air floatation sedimentation repairing device, which comprises an air floatation tank, a sedimentation tank, a connecting pipe, a sediment discharge pipe, a dosing pipe, a water outlet pipe and an oil outlet channel, wherein a water inlet pipe and an aeration pipe are arranged in the air floatation tank, and an oil outlet weir and an oil outlet pipe are arranged at the top of the air floatation tank; one end of the connecting pipe is connected with the lower part of the air floatation tank, and the other end of the connecting pipe is connected with the upper part of the sedimentation tank; the sediment discharge pipe is arranged at the bottom of the sedimentation tank, and the medicine adding pipe, the water outlet pipe and the oil outlet channel are all arranged at the top of the sedimentation tank.
As a further improvement of the embodiment of the invention, the sedimentation tanks are arranged along the circumferential direction of the floatation tank.
As a further improvement of the embodiment of the invention, N sedimentation baffle plates are uniformly distributed in the sedimentation tank along the circumferential direction, and the sedimentation tank is uniformly divided into N sedimentation areas which are sequentially communicated; and N is an integer greater than 2.
As a further improvement of the embodiment of the invention, each group of two adjacent sedimentation baffle plates is provided with a space between the top end of one sedimentation baffle plate and the top of the sedimentation tank, and a space is provided between the bottom end of the other sedimentation baffle plate and the bottom of the sedimentation tank.
As a further improvement of the embodiment of the invention, the joint of the connecting pipe and the sedimentation tank and the joint of the water outlet pipe and the sedimentation tank are respectively positioned in two adjacent and non-communicated sedimentation areas.
As a further improvement of the embodiment of the invention, all the sedimentation areas are provided with dosing tubes.
As a further improvement of the embodiment of the invention, in the flowing direction of the underground water in the sedimentation tank, the oil outlet channel is arranged at the top end of the sedimentation zone positioned at the upstream of the sedimentation zone where the junction of the water outlet pipe and the sedimentation tank is positioned.
As a further improvement of the embodiment of the invention, the bottom of the air floatation tank is conical.
As a further improvement of the embodiment of the invention, the bottom of the sedimentation tank is conical.
As a further improvement of the embodiment of the invention, a water distributor is arranged in the air floatation tank and is connected with a water inlet pipe for uniformly inputting underground sewage into the air floatation tank.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) According to the underground water-air floatation sedimentation restoration device, the air floatation tank and the sedimentation tank which are communicated are arranged, the air floatation method is coupled with the sedimentation method, and after extraction, the light non-aqueous liquid in the underground water is quickly trapped by adopting the air floatation method, so that the concentration of the light non-aqueous liquid in the underground water is greatly reduced; adding demulsifier and precipitant by precipitation method to remove heavy metal in underground water and further remove residual light non-aqueous liquid; thereby realizing the rapid and efficient restoration of the groundwater with combined pollution.
(2) According to the underground water floatation sedimentation repairing device provided by the invention, the sedimentation tank is circumferentially arranged along the floatation tank, the underground water circularly flows in the sedimentation tank, the flowing time in the sedimentation tank is prolonged, the reaction time of the demulsifier and the precipitant with the underground water is prolonged, and the trapping and repairing effects are improved; meanwhile, the volume of the whole device is reduced, and the device is convenient to integrate on environmental emergency treatment equipment.
(3) According to the underground water floatation sedimentation repair device provided by the invention, the sedimentation tank is internally and circumferentially provided with the plurality of sedimentation baffles uniformly, and each group of two adjacent sedimentation baffles is provided with the interval between the top end of one sedimentation baffle and the top of the sedimentation tank, and the interval between the bottom end of the other sedimentation baffle and the bottom of the sedimentation tank, so that underground water alternately flows from bottom to top and from top to bottom in the annular flowing process of the sedimentation tank, the flowing time in the sedimentation tank is further prolonged, the reaction time of a demulsifier and a precipitant with underground water is further prolonged, and the trapping repair effect is improved.
Drawings
FIG. 1 is a schematic diagram of an underground water-air floatation sedimentation repair device according to an embodiment of the invention;
FIG. 2 is a top view of an underground water-air-float sedimentation remediation device according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of an underground water-air-float sedimentation remediation device according to an embodiment of the present invention.
In the figure: the device comprises an air floatation tank 1, a sedimentation tank 2, a connecting pipe 3, a sediment discharge pipe 4, a dosing pipe 5, a water outlet pipe 6, an oil outlet channel 7, a water inlet pipe 101, an aeration pipe 102, an aeration head 103, a water distributor 104, an oil outlet weir 105, a first sedimentation baffle 201, a second sedimentation baffle 202, a third sedimentation baffle 203 and a fourth sedimentation baffle 204.
Detailed Description
The following describes the technical scheme of the invention in detail.
The embodiment of the invention provides an underground water vapor floatation sedimentation repairing device, which is shown in figure 1 and comprises an air floatation tank 1, a sedimentation tank 2, a connecting pipe 3, a sediment discharge pipe 4, a dosing pipe 5 and a water outlet pipe 6. The air floatation tank 1 is internally provided with a water inlet pipe 101 and an aeration pipe 102, and the air inlet pipe 101 is used for conveying groundwater into the air floatation tank 1. A plurality of aeration heads 103 are arranged on the aeration pipe 102, and aeration is performed in the air floatation tank 1. The top of the air floatation tank 1 is provided with an oil outlet weir 105 and an oil outlet pipe, an inlet of the oil outlet pipe is positioned at the outer side of the oil outlet weir 105, and after light non-aqueous phase liquid is gathered at the top of the air floatation tank 1, the light non-aqueous phase liquid overflows to the outer side of the oil outlet weir through the oil outlet weir and enters the oil outlet pipe. One end of the connecting pipe 3 is connected with the lower part of the floatation tank 2, and the other end is connected with the upper part of the sedimentation tank 2. A sediment discharge pipe 4 is provided at the bottom of the sedimentation tank 2 for discharging sediment in the sedimentation tank. The dosing pipe 5 is arranged at the top of the sedimentation tank 2 and is used for adding demulsifier and precipitant into the sedimentation tank. The water outlet pipe 6 is arranged at the top of the sedimentation tank 2 and is used for discharging the repaired underground water. The oil outlet channel 7 is arranged at the top of the sedimentation tank 2 and is used for discharging the light non-aqueous liquid floating upwards after demulsification.
The working flow of the underground water-air floatation sedimentation repairing device is as follows:
Groundwater flows into the floatation tank 1 through the water inlet pipe 101, the aeration pipe 102 conveys air for the aeration head 103, and the aeration head performs aeration in the floatation tank 1. The bubbles generated by aeration are used as carriers to adhere to the light non-aqueous phase liquid in the underground water and carry the light non-aqueous phase liquid to rise to the top of the floatation tank. The separation of the light non-aqueous phase liquid and the water is realized, and the concentration of the light non-aqueous phase liquid is reduced. After the light non-aqueous phase liquid rises to the top of the air floatation tank, the light non-aqueous phase liquid overflows through the oil outlet weir 105 and flows into the oil outlet pipe to be collected. Groundwater after the concentration of the light nonaqueous phase liquid is reduced flows into the connecting pipe 3 from the lower part of the air floatation tank and then flows into the sedimentation tank 2 from the upper part of the sedimentation tank. And adding a demulsifier and a precipitant into the sedimentation tank through a dosing pipe, and demulsifying the underground sewage containing the low-concentration light non-aqueous liquid by the demulsifier to separate the light non-aqueous liquid from water, wherein the light non-aqueous liquid rises to the top of the sedimentation tank and flows out of the sedimentation tank through the oil outlet channel 7. The precipitant reacts with heavy metals in the groundwater to generate precipitate which is deposited at the bottom of the sedimentation tank and is discharged out of the sedimentation tank through a precipitate discharge pipe 4. The restored groundwater is discharged out of the sedimentation tank through a water outlet pipe and is used for reinjection or reutilization.
The underground water-air floatation sedimentation restoration device is provided with the air floatation tank and the sedimentation tank which are communicated, the air floatation method is coupled with the sedimentation method, and the light non-aqueous liquid in the underground water is quickly trapped by the air floatation method after the extraction, so that the concentration of the light non-aqueous liquid in the underground water is greatly reduced; adding demulsifier and precipitant by precipitation method to remove heavy metal in underground water and further remove residual light non-aqueous liquid; thereby realizing the rapid and efficient restoration of the groundwater with combined pollution.
As a preferred example, the sedimentation tank 2 is arranged along the circumference of the floatation tank 1. A circle of sedimentation channel is formed between the connection part of the sedimentation tank and the connecting pipe (namely the water inlet of the sedimentation tank) and the connection part of the sedimentation tank and the water outlet pipe (namely the water outlet of the sedimentation tank), and after the underground water enters the sedimentation tank from the connecting pipe, the underground water flows along the sedimentation channel to the water outlet pipe, so that the flowing time of the underground water in the sedimentation tank can be prolonged, the reaction time of a demulsifier and a precipitant with the underground water can be prolonged, and the trapping and repairing effects can be improved; meanwhile, the volume of the whole device is reduced, and the device is convenient to integrate on environmental emergency treatment equipment.
As a preferable example, N pieces of sedimentation baffle plates are uniformly distributed in the sedimentation tank 2 along the circumferential direction, and the sedimentation tank is uniformly divided into N sedimentation areas which are sequentially communicated. The joint of the connecting pipe 3 and the sedimentation tank 2 (i.e. the water inlet of the sedimentation tank) and the joint of the water outlet pipe 6 and the sedimentation tank 2 (i.e. the water outlet of the sedimentation tank) are respectively positioned in two adjacent sedimentation areas. N is an integer greater than 2, n=3, n=4, n=5 or n=6.
For example, n=4, as shown in fig. 2, the 4 precipitation baffles uniformly divide the precipitation tank into 4 precipitation zones, which are a first precipitation zone, a second precipitation zone, a third precipitation zone and a fourth precipitation zone, respectively, and the first precipitation zone, the second precipitation zone, the third precipitation zone and the fourth precipitation zone are sequentially communicated. The junction of connecting pipe and sedimentation tank (i.e. the water inlet of sedimentation tank) is located first sedimentation zone, and the junction of outlet pipe and sedimentation tank (i.e. the delivery port of sedimentation tank) is located fourth sedimentation zone. After entering the sedimentation tank, the groundwater sequentially passes through the first sedimentation zone, the second sedimentation zone, the third sedimentation zone and the fourth sedimentation zone. The precipitation partition plate between the first precipitation zone and the second precipitation zone is a first precipitation partition plate 201, the precipitation partition plate between the second precipitation zone and the third precipitation zone is a second precipitation partition plate 202, the precipitation partition plate between the third precipitation zone and the fourth precipitation zone is a third precipitation partition plate 203, and the precipitation partition plate between the fourth precipitation zone and the first precipitation zone is a fourth precipitation partition plate 204. The two adjacent sedimentation areas are communicated with each other through the interval between the top end of the sedimentation baffle and the top of the sedimentation tank or the interval between the bottom end of the sedimentation baffle and the bottom of the sedimentation tank.
Preferably, each group of two adjacent sedimentation baffles, wherein the top end of one sedimentation baffle is spaced from the top of the sedimentation tank, and the bottom end of the sedimentation baffle is not spaced from the bottom of the sedimentation tank; the bottom end of the other sedimentation baffle plate is spaced from the bottom of the sedimentation tank, and the top end of the other sedimentation baffle plate is not spaced from the top of the sedimentation tank. For example, when n=4, the top end of the first sedimentation separator has no space with the top of the sedimentation tank, the bottom end of the first sedimentation separator has space with the bottom of the sedimentation tank, and the groundwater in the first sedimentation zone flows into the second sedimentation zone from the bottom end of the first sedimentation separator. The top end of the second sedimentation baffle plate is spaced from the top of the sedimentation tank, the bottom end of the second sedimentation baffle plate is not spaced from the bottom of the sedimentation tank, and the groundwater in the second sedimentation zone flows into the third sedimentation zone from the top end of the second sedimentation baffle plate. The top end of the third sedimentation baffle is not spaced from the top of the sedimentation tank, the bottom end of the third sedimentation baffle is spaced from the bottom of the sedimentation tank, and the groundwater in the third sedimentation zone flows into the fourth sedimentation zone from the bottom end of the third sedimentation baffle. Therefore, in the annular flowing process of the underground water in the sedimentation tank, the underground water alternately flows from bottom to top and from top to bottom, so that the flowing time in the sedimentation tank is further prolonged, the reaction time of the demulsifier and the sedimentation agent with the underground water is prolonged, and the trapping and repairing effects are improved.
In view of preventing groundwater from entering the sedimentation tank from the connecting pipe and then entering the water outlet pipe to be discharged, preferably, the upper end and the lower end of the sedimentation baffle between the sedimentation area where the connection part of the connecting pipe 3 and the sedimentation tank (namely the water inlet of the sedimentation tank) is positioned and the sedimentation area where the connection part of the water outlet pipe and the sedimentation tank (namely the water outlet of the sedimentation tank) is positioned are not separated from the top and the bottom of the sedimentation tank. For example, when n=4, the upper and lower ends of the fourth sedimentation separator have no space with the top and bottom of the sedimentation tank, so that the groundwater in the fourth sedimentation zone is prevented from flowing back to the first sedimentation zone, and the groundwater in the first sedimentation zone is prevented from directly entering the fourth sedimentation zone without sequentially passing through the second sedimentation zone and the third sedimentation zone, thereby ensuring that the groundwater is fully repaired in the sedimentation tank.
As a preferred example, all the sedimentation zones are provided with dosing tubes 5. Each precipitation zone can be added with different types of precipitants, for example, 2 precipitation zones positioned at the upstream are added with polyaluminium chloride (PAC), 2 precipitation zones positioned at the downstream are added with Polyacrylamide (PAM) or heavy metal specific adsorbent, so that the effect of removing organic pollutants and heavy metals is enhanced, and the repairing effect is improved.
As a preferred example, in the direction of groundwater flow in the sedimentation tank, the oil outlet channel 7 is arranged at the top end of the sedimentation zone upstream of the sedimentation zone where the junction of the water outlet pipe 6 and the sedimentation tank 2 (i.e. the water outlet of the sedimentation tank) is located. For example, when n=4, the oil outlet channel 7 is provided at the top end of the third settling zone. The underground water entering the sedimentation tank from the air floatation tank may also contain a small amount of light non-aqueous liquid, after entering the sedimentation tank, the underground water passes through a plurality of sedimentation areas to reach a sedimentation area on the upstream of the sedimentation area where the water outlet of the sedimentation tank is positioned, wherein the light non-aqueous liquid is sufficiently separated from water and is gathered at the top end, so that an oil outlet channel is arranged in the sedimentation area, the light non-aqueous liquid can be effectively removed, and meanwhile, the progress of sedimentation is not influenced.
Preferably, the bottom of the sedimentation tank is conical, so that sediment can be conveniently gathered and discharged. The bottom of the air floatation tank is also conical, so that impurities in the underground water in the air floatation tank are precipitated to the bottom to be gathered and discharged under the action of gravity.
Preferably, a water distributor 104 is arranged in the air floatation tank, and the water distributor 104 is connected with the water inlet pipe 101 and is used for uniformly inputting underground sewage into the air floatation tank 1.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the specific embodiments described above, and that the above specific embodiments and descriptions are provided for further illustration of the principles of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The underground water-air floatation sedimentation repairing device is characterized by comprising an air floatation tank (1), a sedimentation tank (2), a connecting pipe (3), a sediment discharge pipe (4), a dosing pipe (5), a water outlet pipe (6) and an oil outlet channel (7), wherein a water inlet pipe (101) and an aeration pipe (102) are arranged in the air floatation tank (1), and an oil outlet weir (105) and an oil outlet pipe are arranged at the top of the air floatation tank (1); one end of the connecting pipe (3) is connected with the lower part of the air floatation tank (2), and the other end is connected with the upper part of the sedimentation tank (2); the sediment discharge pipe (4) is arranged at the bottom of the sedimentation tank, and the dosing pipe (5), the water outlet pipe (6) and the oil outlet channel (7) are all arranged at the top of the sedimentation tank.
2. The underground water floatation precipitation restoration device according to claim 1, wherein the precipitation tank (2) is circumferentially arranged along the floatation tank (1).
3. The underground water vapor floatation precipitation restoration device according to claim 2, wherein N precipitation baffles are uniformly distributed in the precipitation tank (2) along the circumferential direction, and the precipitation tank is uniformly divided into N precipitation areas which are sequentially communicated; and N is an integer greater than 2.
4. The groundwater air-float precipitation remediation device of claim 3, wherein each group of two adjacent precipitation baffles, wherein a space is provided between the top end of one precipitation baffle and the top of the precipitation tank, and a space is provided between the bottom end of the other precipitation baffle and the bottom of the precipitation tank.
5. An underground water vapor-deposition remediation device according to claim 3, wherein the connection between the connecting pipe (3) and the sedimentation tank (2) and the connection between the water outlet pipe (6) and the sedimentation tank (2) are respectively located in two adjacent and non-communicated sedimentation areas.
6. An underground water aerosol precipitation remediation device according to claim 3, wherein all precipitation zones are provided with dosing tubes (5).
7. An underground water floating sedimentation remediation device according to claim 3, wherein the oil outlet channel (7) is arranged at the top end of the sedimentation zone upstream of the sedimentation zone where the junction of the water outlet pipe (6) and the sedimentation tank (2) is located, in the direction of the flow of underground water in the sedimentation tank.
8. The underground water vapor deposition remediation device according to claim 1, wherein the bottom of the floatation tank (1) is tapered.
9. The underground water vapor deposition remediation device according to claim 1, wherein the bottom of the sedimentation tank (2) is tapered.
10. The underground water-air floatation precipitation restoration device according to claim 1, wherein a water distributor (104) is arranged in the floatation tank, and the water distributor (104) is connected with a water inlet pipe (101) and is used for uniformly inputting underground sewage into the floatation tank (1).
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KR20120053272A (en) * | 2010-11-17 | 2012-05-25 | 한국수자원공사 | Sedimentation apparatus with improved hydraulic flocculating waterway |
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CN209081508U (en) * | 2018-10-09 | 2019-07-09 | 河北航天环境工程有限公司 | A kind of high-efficiency clarifier for forcing Mixing Technology based on air swirl |
CN110240323A (en) * | 2019-06-28 | 2019-09-17 | 西安建筑科技大学 | The air-floating apparatus of hydraulic disturbance is provided |
CN216073479U (en) * | 2021-08-22 | 2022-03-18 | 上海淅源环境科技有限公司 | Underground aerobic biomembrane process sewage treatment equipment |
CN216236378U (en) * | 2021-09-17 | 2022-04-08 | 泰安圣智环境技术有限公司 | Air flotation and coagulation integrated machine |
CN217996863U (en) * | 2022-08-16 | 2022-12-09 | 西安容达环保有限公司 | Tunnel wastewater treatment whirl deposits device |
CN219929693U (en) * | 2023-04-28 | 2023-10-31 | 深能合和电力(河源)有限公司 | Air supporting pond structure for oily waste water treatment |
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