CN220034070U - Portable permeable reactive barrier experimental apparatus - Google Patents
Portable permeable reactive barrier experimental apparatus Download PDFInfo
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- CN220034070U CN220034070U CN202320726628.4U CN202320726628U CN220034070U CN 220034070 U CN220034070 U CN 220034070U CN 202320726628 U CN202320726628 U CN 202320726628U CN 220034070 U CN220034070 U CN 220034070U
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- 230000004888 barrier function Effects 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 238000002474 experimental method Methods 0.000 claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 10
- 239000012429 reaction media Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 239000006004 Quartz sand Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 4
- 238000003556 assay Methods 0.000 claims 8
- 238000010276 construction Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 238000003895 groundwater pollution Methods 0.000 abstract description 3
- 238000005067 remediation Methods 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 239000003673 groundwater Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a movable permeable reactive barrier experimental device, and belongs to the technical field of groundwater pollution remediation experimental devices. The utility model comprises a permeable reaction wall and a movable experiment table, wherein the permeable reaction wall is fixed on the movable experiment table; the permeable reactive barrier comprises a water inlet area, a water distribution area, a permeable reactive barrier, a protection area and a water outlet area which are sequentially arranged along the horizontal direction, and a permeable partition is arranged between the adjacent areas; the side surface of the permeable reaction zone is provided with a sampling port, the sampling port is connected with a water intake pipe in the reaction zone, the water intake pipe is provided with a water permeable hole, and the water intake pipe is coated with a filter screen; the below of portable laboratory bench is equipped with the backup pad, installs water pump and former water tank on the backup pad, and former water tank is linked together through the water inlet region of water pump and permeable reactive barrier. The utility model can improve the utilization rate of experimental space through integral movement, can accurately monitor experimental results, and provides important basis for the field design and construction of PRB.
Description
Technical Field
The utility model relates to a movable permeable reactive barrier experimental device, and belongs to the technical field of groundwater pollution remediation experimental devices.
Background
The Permeable Reactive Barrier (PRB) technology is a groundwater repair technology taking an in-situ permeable treatment zone as a repair main body, and utilizes a specific reaction medium to remove organic pollutants, heavy metals, inorganic salts or radioactive substances and the like in groundwater by physical, chemical, biological degradation and other methods, so that a pollution component is converted into an environment acceptable form, and the purpose of blocking or repairing pollution plumes is achieved. The PRB is a reaction barrier zone formed by using an active reaction medium filler structure and perpendicular to the flow direction of water flow, and is arranged in a downstream water storage layer of a groundwater pollution plume, the polluted groundwater flows through a reaction medium under a natural hydraulic gradient, external power is not required, wall reaction medium fillers are required to be replaced under certain special conditions, and maintenance is simpler after construction is finished, so that the PRB technology has the advantages of low operation and maintenance cost, sustainable in-situ treatment of various pollutants, good treatment effect, small interference on ecological environment, high cost performance and the like. PRB technology has been widely applied to engineering fields and commercialized in the european and american countries. The PRB technology is studied at a later time in China, and the engineering for repairing the underground water in the polluted site is relatively few at present, and is mostly in the laboratory research and field demonstration application stage.
Before the PRB wall body is designed and constructed, experiments are required to be carried out by utilizing an experimental device according to the types and the contents of pollutants in underground water so as to determine the types, the proportions, the wall body thickness, the service life and the like of the active reaction medium materials. Because the permeable reactive barrier experimental device is relatively long and heavy, the mobility of the whole device is considered so as to improve the utilization rate of the experimental space; in order to better provide basis for field design and construction of experimental results, the experimental device needs to have a certain scientificity to obtain more accurate experimental results.
Disclosure of Invention
The utility model provides a permeable reactive barrier experimental device capable of moving integrally so as to improve the utilization rate of experimental space, and the experimental result provides reliable basis for on-site design and construction parameters.
The movable permeable reactive barrier experimental device comprises a permeable reactive barrier and a movable experiment table, wherein the permeable reactive barrier is fixed on the movable experiment table;
the permeable reaction wall comprises a water inlet area, a water distribution area, a permeable reaction area, a protection area and a water outlet area which are sequentially arranged along the horizontal direction, and a permeable partition plate is arranged between adjacent areas; the side surface of the permeable reaction zone is provided with a sampling port, the sampling port is connected with a water intake pipe in the reaction zone, a water permeable hole is formed in the water intake pipe, and a filter screen is coated outside the water intake pipe;
the portable laboratory bench's below is equipped with the backup pad, installs water pump and former water tank in the backup pad, former water tank is linked together through the water pump and the water inlet zone of permeable reaction wall.
Further, universal wheels are mounted on the table legs of the movable experiment table, so that the whole experiment device can be integrally moved.
Further, a flow meter and a flow regulating valve are arranged on a pipeline between the water pump and the water inlet area, the experimental water inlet flow is monitored and regulated in real time, a loop is formed between the water pump and the original water tank through a bypass pipeline, and the bypass valve is arranged on the bypass pipeline to keep the water pressure in the pipeline stable.
Furthermore, the first emptying valve is arranged at the bottom of the raw water tank, so that raw water or cleaning water in the raw water tank can be conveniently discharged.
Furthermore, broken stone or quartz sand is filled in the water distribution area, so that water flows uniformly into the permeable reaction area.
Further, the permeable reaction zone is filled with an active reaction medium material.
Furthermore, quartz sand is filled in the protection area, so that the active reaction medium material is ensured not to run off.
Further, the water outlet valve is arranged on the upper side of the water outlet area, and the second emptying valve is arranged at the bottom of the water outlet area, so that water in the experimental device and water for cleaning the experimental device can be conveniently discharged after the whole experiment is finished.
Further, a filter screen is arranged on the water permeable partition plate between the protection area and the water outlet area, so that quartz sand is prevented from entering the water outlet area.
The beneficial effects are that:
the utility model realizes the mobility of the permeable reactive barrier, thereby improving the utilization rate of experimental space, and the device can perform experiments on the removal effect of different active reactive media materials on pollutants according to the groundwater flow speed, the pollutant types, the pollutant content and the like of the permeable reactive barrier construction site, so as to determine the types and the proportion of the active media materials filled in the permeable reactive barrier, the thickness and the service life of the permeable reactive barrier, accurately monitor the experimental result and provide important basis for the field design and the construction of the permeable reactive barrier.
Description of the drawings:
FIG. 1 is a schematic diagram of the present utility model.
In fig. 1: 1. the device comprises a first emptying valve, 2, a raw water tank, 3, a water pump, 4, a bypass valve, 5, a flow regulating valve, 6, a flowmeter 7, a water inlet area, 8, a water distribution area, 9, a permeable reaction area, 10, a sampling port, 11, a protection area, 12, a water outlet area, 13, a water outlet valve, 14, a second emptying valve, 15, a movable experiment table, 16, a supporting plate, 17 and universal wheels.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
As shown in fig. 1, a mobile permeable reactive barrier experimental device comprises a permeable reactive barrier and a mobile laboratory table, wherein the permeable reactive barrier is fixed on the mobile laboratory table;
the permeable reaction wall comprises a water inlet area 7, a water distribution area 8, a permeable reaction area 9, a protection area 11 and a water outlet area 12 which are sequentially arranged along the horizontal direction, and a permeable partition plate is arranged between the adjacent areas; the side surface of the permeable reaction zone 9 is provided with a sampling port 10, the sampling port 10 is connected with a water intake pipe in the reaction zone 9, a water permeable hole is formed in the water intake pipe, and a filter screen is coated outside the water intake pipe;
the below of portable laboratory bench is equipped with backup pad 16, installs water pump 3 and former water tank 2 on the backup pad 16, former water tank 2 is linked together with permeable reaction wall's water inlet region 7 through water pump 3.
In the embodiment, the permeable reaction wall is arranged on the movable experiment table, so that the whole movement of the experiment device is realized, on one hand, the experiment device is conveniently pushed to the water outlet after the experiment is finished, the water in the device is discharged, and a drain pipe is not required to be paved in a laboratory specially for the device; on the other hand, after the experiment is finished and emptied, the experimental device is pushed to a corner of a laboratory or a fixed place for storage when not in use, so that the utilization rate of the experimental space is improved.
The experimental device also buffers the inflow water and the outflow water by arranging the water distribution area 8 and the protection area 11. The specific process is as follows: raw water in the raw water tank 2 enters the water inlet area 7 under the action of the water pump 3, enters the water distribution area 8 after passing through the water permeable partition plate, the water flow is uniformly distributed, the uniformly distributed water flow enters the permeable reaction area 9 through the water permeable holes on the water permeable partition plate, the raw water enters the protection area 11 after being physically, chemically or biologically degraded by the active reaction medium material, and the water flow enters the water outlet area 12 after passing through the water permeable holes on the water permeable partition plate. The device simulates underground water circulation through the original water tank 2, can continuously flow in water and drain water, thereby being capable of carrying out dynamic experiments.
In addition, the experimental device is also provided with sampling ports 10, and the number of the sampling ports 10 is determined according to the length of the permeable reaction zone 9 and is distributed at intervals. The residual concentration of the contaminants in the water can be measured in real time by opening the valve of the sampling port 10 to obtain a water sample, which is used for determining the thickness of the permeable reaction zone 9. And more accurate experimental results can be obtained, and important references are provided for subsequent construction. The sampling port 10 is connected with a water intake pipe arranged in the permeable reaction zone 9, the water intake pipe is provided with a small permeable hole, and a filter screen is coated outside the water intake pipe to prevent the active reaction medium material from entering the water intake pipe and then causing water sampling incapability.
Specifically, universal wheels 17 are arranged on the table legs of the movable experiment table, so that the direction and position adjustment of the whole movement process of the experiment device can be facilitated.
Specifically, a flow meter 6 and a flow regulating valve 5 are arranged on a pipeline between the water pump 3 and the water inlet area 7, the flow meter 6 can monitor the water flow entering the water inlet area 7 in real time, and the flow regulating valve 5 can regulate the flow to enable the water flow to meet the experimental requirements. The water pump 3 also forms a loop with the raw water tank 2 through a bypass pipeline, and a bypass valve 4 is arranged on the bypass pipeline. Part of raw water in the raw water tank 2 is conveyed to the water inlet area 7 through a pipeline, and redundant water can flow back to the raw water tank 2 through a bypass pipeline, so that the water pressure in the experiment pipeline is kept within a normal range.
Specifically, a first emptying valve 1 is installed at the bottom of the raw water tank 2, so that residual raw water and water for cleaning the raw water tank 2 can be discharged after the experiment is finished.
Specifically, crushed stone or quartz sand is filled in the water distribution area 8, the grading of the crushed stone or quartz sand is reasonably selected according to the flow rate of groundwater in the construction site of the permeable reactive barrier, and the like, and the water distribution area 8 evenly distributes water to the permeable reactive area 9.
Specifically, the permeable reaction zone 9 is filled with active reaction medium materials, and different active reaction medium materials are selected according to the types and contents of pollutants in the groundwater to be treated, so as to perform experiments on the pollutant removal effect of different active reaction medium materials.
Specifically, the protection area 11 is filled with quartz sand, so that the active reaction medium material is ensured not to run off.
Specifically, a water outlet valve 13 is installed on the upper side of the water outlet area 12, the raw water tank 2 provides continuous water inlet flow, and the water outlet valve 13 discharges water in time, so that the dynamic experiment is carried out. A second blow-off valve 14 is installed at the bottom to facilitate the blow-off of water from the experimental apparatus and the discharge of water for cleaning the experimental apparatus after the completion of the whole experiment.
Specifically, a filter screen is installed on the water permeable partition between the protection area 11 and the water outlet area 12 to prevent quartz sand from entering the water outlet area 12.
The present utility model is not limited to the above-described embodiments, but various modifications are possible within the scope of the present utility model without departing from the spirit of the present utility model within the knowledge of those skilled in the art.
Claims (9)
1. The utility model provides a portable permeable reactive barrier experimental apparatus which characterized in that: the device comprises a permeable reaction wall and a movable experiment table, wherein the permeable reaction wall is fixed on the movable experiment table;
the permeable reaction wall comprises a water inlet area (7), a water distribution area (8), a permeable reaction area (9), a protection area (11) and a water outlet area (12) which are sequentially arranged along the horizontal direction, and a permeable partition plate is arranged between adjacent areas; the side surface of the permeable reaction zone (9) is provided with a sampling port (10), the sampling port (10) is connected with a water intake pipe in the reaction zone (9), the water intake pipe is provided with a water permeable hole, and the water intake pipe is coated with a filter screen;
the portable laboratory bench's below is equipped with backup pad (16), and backup pad (16) are equipped with water pump (3) and former water tank (2) on, former water tank (2) are linked together with permeable reactive barrier's water inlet region (7) through water pump (3).
2. The portable permeable reactive barrier assay of claim 1, wherein: universal wheels (17) are arranged on the table legs of the movable experiment table.
3. The portable permeable reactive barrier assay of claim 1, wherein: the water pump is characterized in that a flow meter (6) and a flow regulating valve (5) are arranged on a pipeline between the water pump (3) and the water inlet area (7), a loop is formed between the water pump (3) and the original water tank (2) through a bypass pipeline, and a bypass valve (4) is arranged on the bypass pipeline.
4. A mobile permeable reactive barrier assay according to claim 1 or 3, wherein: the bottom of the original water tank (2) is provided with a first emptying valve (1).
5. The portable permeable reactive barrier assay of claim 1, wherein: the water distribution area (8) is filled with broken stone or quartz sand.
6. The portable permeable reactive barrier assay of claim 1, wherein: the permeable reaction zone (9) is filled with an active reaction medium material.
7. The portable permeable reactive barrier assay of claim 1, wherein: quartz sand is filled in the protection area (11).
8. The portable permeable reactive barrier assay of claim 1, wherein: the upper side of the water outlet area (12) is provided with a water outlet valve (13), and the bottom is provided with a second emptying valve (14).
9. A mobile permeable reactive barrier assay according to claim 1 or 7, wherein: the filter screen is arranged on the water permeable partition plate between the protection area (11) and the water outlet area (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320726628.4U CN220034070U (en) | 2023-04-04 | 2023-04-04 | Portable permeable reactive barrier experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320726628.4U CN220034070U (en) | 2023-04-04 | 2023-04-04 | Portable permeable reactive barrier experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220034070U true CN220034070U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320726628.4U Active CN220034070U (en) | 2023-04-04 | 2023-04-04 | Portable permeable reactive barrier experimental apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN220034070U (en) |
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2023
- 2023-04-04 CN CN202320726628.4U patent/CN220034070U/en active Active
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