CN215218814U - Radioactive solid waste leaching device with horizontal and vertical migration sampling - Google Patents
Radioactive solid waste leaching device with horizontal and vertical migration sampling Download PDFInfo
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- CN215218814U CN215218814U CN202023258016.2U CN202023258016U CN215218814U CN 215218814 U CN215218814 U CN 215218814U CN 202023258016 U CN202023258016 U CN 202023258016U CN 215218814 U CN215218814 U CN 215218814U
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Abstract
The utility model discloses a radioactive solid waste leaching device with horizontal and vertical migration sampling, which comprises a ceiling, a rainwater storage tank, a leaching spray head and a soil column body; the soil column body is also provided with a transverse and longitudinal migration sampling assembly, and the transverse and longitudinal migration sampling assembly comprises an external collecting pipe and an internal collecting pipe; the external collecting pipe is provided with a lateral control valve; one end of the inner collecting pipe is provided with a bearing; the other end of the inner collecting pipe is provided with a telescopic end, and the telescopic end is provided with a lateral filtrate collecting hole for collecting transversely and longitudinally moved liquid. The utility model discloses a set up horizontal vertical migration sampling subassembly on the soil cylinder body, can take a sample to the horizontal vertical migration liquid in the earth pillar body well, when needs take a sample, the flexible end axial displacement of accessible removes the position that needs the sample with side direction filtrating collecting hole, when not needing the sample, can rotate internal collecting pipe, converts the side direction filtrating collecting hole from up to setting up down, avoids the side direction filtrating collecting hole to be blockked up.
Description
Technical Field
The utility model relates to an environment radiochemistry technical field, concretely relates to radioactivity solid waste leaching device with horizontal and vertical migration sample that middle scale experiment was used is carried out in place outside the laboratory.
Background
In the process of mining, smelting and using uranium ores and associated radioactive ores (associated radioactive ores refer to non-uranium ores containing high-level natural radionuclide concentration, such as rare earth ores, tantalum-niobium ores, zircon ores, phosphate ores and the like), a certain amount of radioactive solid wastes are generated in China, and the radioactive nuclides are often associated in the solid wastes238U、226Ra、232Th、40K. Natural radionuclides such As Cd, Cr, Pb, Hg, As and heavy metal pollutants. If the radioactive solid waste is not properly treated, under the leaching action of rainfall in the atmosphere, pollutants such as radioactive nuclides, heavy metals and the like in the waste can pollute the soil of the lower layer and even the underground water body along with the migration of rainwater. Therefore, the method has important application significance for researching the migration rule of nuclides and heavy metals in the radioactive ore solid waste in the environment. The leaching experiment is one of the important methods for researching the migration characteristics of various pollutants in the environment at present, and can provide scientific basis for environmental impact evaluation, environmental remediation and the like.
At present, the research on the nuclide migration in radioactive ore solid waste is less, some existing leaching devices are mostly small integrated vertical glass soil columns in laboratories, and the representativeness of the leaching experiment of small-volume soil columns on the actual migration rule of pollutants is limited; secondly, some indoor experimental devices can only singly and longitudinally take out soil for analysis, and can only open the soil column to take out a soil sample once after leaching is finished, so that the research on the transverse and longitudinal migration of radioactive pollutants can not be carried out simultaneously, and the research on soil taking at different time intervals can not be carried out; in addition, leachate used by the small indoor earth pillar leaching device is mostly diluted acid simulation rainwater configured in a laboratory, and the nature of the leachate is still different from that of actual rainwater.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's not enough, the utility model aims at providing a radioactive solid waste leaching device with horizontal vertical migration sample solves above-mentioned traditional problem, and it has the structure of horizontal vertical migration sample, can carry out radioactive pollutant's horizontal vertical migration research simultaneously in the experimentation.
The utility model discloses a following technical scheme realizes:
a radioactive solid waste leaching device with transverse and longitudinal migration sampling comprises a ceiling with a rainwater collecting cavity, a rainwater storage tank connected with the top of the ceiling, a leaching spray nozzle connected with the rainwater storage tank and a soil column body installed below the leaching spray nozzle, wherein a water suction pump and a flow meter positioned on an outlet pipeline of the water suction pump are installed on an outlet pipeline of the rainwater storage tank, the water suction pump is communicated with the leaching spray nozzle, and the soil column body is internally provided with a filling cavity for filling radioactive solid waste, a lateral sampling hole communicated with the filling cavity and a leachate collecting box; the soil column body is also provided with a transverse and longitudinal migration sampling assembly, and the transverse and longitudinal migration sampling assembly comprises an external collecting pipe and an internal collecting pipe which are mutually communicated; the external collecting pipe is provided with a lateral control valve; one end of the inner collecting pipe, which is close to the outer collecting pipe, is provided with a bearing; the inside collecting pipe is kept away from the one end of outside collecting pipe is equipped with the flexible end of wearing to locate soil column body outer end, flexible end is equipped with the side direction filtrating collecting hole that is used for collecting horizontal and vertical migration liquid.
Furthermore, the telescopic end is a telescopic pipe, and the telescopic pipe is provided with scales.
Furthermore, the extension tube is obliquely arranged towards the direction of the external collecting tube, and the inclination angle of the extension tube is 10-20 degrees.
Furthermore, one end of the external collecting pipe is communicated with a purge gas pipe, and the external collecting pipe is obliquely arranged in a direction back to the purge gas pipe.
Further, install agitator and liquid level transmitter on the rainwater bin, agitator, liquid level transmitter all with the suction pump electricity is connected.
Furthermore, the outlet pipeline of the water pump is further provided with a return pipe and a cleaning pipe, the return pipe is communicated with the rainwater storage tank, and an outlet of the cleaning pipe is located at one end of the rainwater collection cavity.
Furthermore, a sewage drain pipe communicated with the rainwater collecting cavity is further installed at the bottom of the ceiling.
Further, the soil column body is of a reinforced concrete structure with an open top.
Furthermore, the soil column body is provided with a first red soil layer located at the top, a second red soil layer located at the side wall and a third red soil layer located at the bottom, and the first red soil layer, the second red soil layer and the third red soil layer form the filling cavity.
Further, the bottom of soil cylinder is funnel-shaped structure, the bottom of soil cylinder still installs the filtrating drain pipe.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a set up horizontal vertical migration sampling subassembly on the soil cylinder body, can take a sample to the horizontal vertical migration liquid in the earth pillar body well, because one of inside collecting pipe serves to install bearing and its other end and be flexible end, when needs sample, the flexible end axial displacement of accessible, remove the position that needs the sample with side direction filtrating collecting hole, when not needing the sample, can rotate inside collecting pipe, collect the hole with side direction filtrating and convert from up to setting up down, avoid side direction filtrating collecting hole to be blockked up.
The utility model discloses a set up ceiling, rainwater bin, leaching shower nozzle and earth pillar body, the ceiling can collect natural rainfall passively to store in the rainwater bin of underground, and according to different experimental settings, utilize suction pump and flowmeter to simulate the rainwater in the bin with specific flow and carry out the leaching experiment with different rainfall intensity, through leaching the shower nozzle, can guarantee uniformly that the rainwater sprays above the earth pillar body, can really simulate the rainfall characteristic; compared with other methods for preparing dilute acid solution to simulate rainfall, the experimental method for collecting and utilizing natural rainfall can be closer to the actual rainwater leaching effect and is more representative.
The utility model discloses a soil cylinder is reinforced concrete structure, can shield some harmful rays to the human body that radioactive solid waste produced effectively, can reduce radioactive solid waste to the harm of human body effectively when the experiment goes on, reaches the radiation protection purpose.
Drawings
FIG. 1 is a schematic diagram of the radioactive solid waste leaching device with lateral and longitudinal migration sampling according to the present invention;
FIG. 2 is a schematic view of the internal collection tube within the column of FIG. 1.
In the figure: 10. a ceiling; 11. a sewage drain pipe; 12. a moisture detector; 20. a rainwater storage tank; 21. a stirrer; 22. a liquid level transmitter; 30. leaching the spray head; 40. a soil column body; 41. a lateral sampling hole; 42. a percolate collecting box; 49. a filtrate drain pipe; 50. a water pump; 51. a return pipe; 52. cleaning the tube; 53. a tap water pipe; 60. a flow meter; 70. a transverse and longitudinal migration sampling assembly; 71. an outer collection tube; 710. a lateral control valve; 711. a purge gas pipe; 72. an inner collection tube; 720. a bearing; 721. a lateral filtrate collection well; 722. calibration; 729. a telescopic end.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 and fig. 2, it is a radioactive solid waste leaching device with horizontal and vertical migration sampling of the utility model, which is used for collecting natural rainwater and performing leaching experiment by using collected rainwater. The radioactive solid waste leaching device comprises a ceiling 10 with a rainwater collecting cavity, a rainwater storage tank 20 connected with the top of the ceiling 10, a leaching spray head 30 connected with the rainwater storage tank 20 and a soil column 40 arranged below the leaching spray head 30; the rainwater collecting cavity is communicated with the rainwater storage tank 20 through a collecting pipe; a water pump 50 and a flow meter 60 positioned on an outlet pipeline of the water pump 50 are installed on an outlet pipeline of the rainwater storage tank 20, and the water pump 50 is communicated with the leaching spray head 30; the soil column body 40 is internally provided with a filling cavity for filling radioactive solid waste, a lateral sampling hole 41 and a percolate collecting box 42, wherein the lateral sampling hole 41 is communicated with the filling cavity and comprises a plurality of transverse sampling holes and longitudinal sampling holes, and a percolate sampling pipe is arranged at the bottom of the percolate collecting box 42. Wherein, a transverse and longitudinal migration sampling assembly 70 is further installed on the soil column body 40, and the transverse and longitudinal migration sampling assembly 70 comprises an outer collecting pipe 71 and an inner collecting pipe 72 which are communicated with each other; a lateral control valve 710 is arranged on the outer collecting pipe 71; one end of the inner collecting pipe 72 close to the outer collecting pipe 71 is provided with a bearing 720; one end of the inner collecting pipe 72 far away from the outer collecting pipe 71 is provided with a telescopic end 729 penetrating the outer end of the soil column body 40, and the telescopic end 729 is provided with a lateral filtrate collecting hole 721 used for collecting transversely and longitudinally moved liquid. Since the lateral filtrate collecting holes 721 are rotated by means of the inner collecting pipe 72 to change their orientation, when they are directed upward, the lateral filtrate collecting holes 721 collect the filtrate flowing from the inside of the soil cylinder 40 and the solids contained in the filtrate such as soil or radioactive solid waste to analyze the place where the sample is taken.
In one embodiment, the telescoping end 729 is a telescoping tube with a scale 722 thereon. The position of the telescopic end 729 in the soil column body 40 can be calculated through the scale 722 to improve the sampling accuracy of the transverse and longitudinal migration liquid, so that experimental data can be better close to the actual situation.
Preferably, the telescopic pipe is arranged in an inclined way towards the direction of the outer collecting pipe 71, and the inclined angle of the telescopic pipe is 10-20 degrees.
In another embodiment, a purge gas pipe 711 is connected to one end of the outer collection pipe 71, and the outer collection pipe 71 is inclined away from the purge gas pipe 711. After the lateral control valve 710 is closed, high-pressure gas is introduced into the purge gas pipe 711 to purge the external collection pipe 71, so that liquid in the pipe is purged completely, and the influence of residual filtrate in the pipe on collecting data of transversely and longitudinally transferred liquid at other positions is avoided.
Foretell radioactive solid waste leaching device is through setting up horizontal longitudinal migration sampling subassembly 70 on earth pillar 40, can take a sample to the horizontal longitudinal migration liquid in the earth pillar 40 well, because one of inside collecting pipe 72 is served and is installed bearing 720 and other end for flexible end 729, when needs sample, the flexible end 729 axial displacement of accessible, remove side direction filtrating collecting hole 721 to the position that needs the sample, when need not take a sample, can rotate inside collecting pipe 72, collect hole 721 with side direction filtrating from converting up to setting up down, avoid side direction filtrating collecting hole 721 to be blockked up.
Specifically, the roof 10 is a reinforced concrete structure with an open top, and the periphery of the roof 10 is surrounded by walls to form the rainwater collection cavity; due to the consideration of good rainwater collection, the bottom surface of the rainwater collection chamber is arranged to be inclined, i.e. one end is inclined towards the other end, so that rainwater can rapidly flow to one end during the collection process, and preferably, the inclination angle of the bottom surface of the rainwater collection chamber is 30-60 degrees. In another embodiment, the bottom of the ceiling 10 is further provided with a sewage drain pipe 11 communicated with the rainwater collection cavity. Optionally, a humidity detector 12 is further installed on the ceiling 10, and the humidity in the atmosphere can be tested by the humidity detector 12 to determine whether to prepare for rain water collection.
Install agitator 21 and level transmitter 22 on the rainwater storage tank 20, agitator 21, level transmitter 22 all with suction pump 50 electricity is connected. By starting the stirrer 21, rainwater stored in the rainwater storage tank 20 for a long time can be stirred, so that the components of the rainwater can be uniform, and the leaching experiment is prevented from being influenced; by arranging the liquid level transmitter 22 on the rainwater storage tank 20, the liquid level of the rainwater storage tank 20 can be monitored according to the measurement of the liquid level transmitter 22, and the liquid level of the rainwater storage tank 20 is prevented from being too high. In order to reduce the evaporation of rainwater in the rainwater storage tank 20, the rainwater storage tank 20 is connected to the ceiling 10 through only one water pipe for collecting rainwater.
The outlet pipeline of the water suction pump 50 is also provided with a return pipe 51 and a cleaning pipe 52, the return pipe 51 is communicated with the rainwater storage tank 20, rainwater can be returned to the rainwater storage tank 20 through the water suction pump 50 and the return pipe 51, water in the rainwater storage tank 20 is uniformly stirred, and the components of the rainwater are uniform. The outlet of the cleaning pipe 52 is located at one end of the rainwater collection cavity, and when long-term raining is not taken into consideration, dust can be fully paved in the rainwater collection cavity of the ceiling 10, the dust can block a pipeline or be accumulated in the rainwater storage box 20, or the content of natural rainwater is influenced, and the water suction pump 50 conveys excessive rainwater to the ceiling 10 through the cleaning pipe 52 and cleans the rainwater collection cavity. In another embodiment, a tap water pipe 53 is connected to the cleaning pipe 52, and when the rainwater is insufficient, the tap water pipe 53 can be used.
The soil column body 40 is of a reinforced concrete structure with an open top and is of a cuboid structure, the wall of the soil column body is 25cm thick, rays harmful to a human body and generated by radioactive solid wastes can be effectively shielded, and the harm of experimental materials to the human body can be effectively reduced during experiment; the internal dimension of the soil column body 40 is 2m long, 1.5m wide and 1.7m high, the bottom of the soil column body 40 is 30cm thick, and the diameter of the lateral sampling hole 41 is 5 cm.
The soil column body 40 is provided with a first red soil layer located at the top, a second red soil layer located on the side wall and a third red soil layer located at the bottom, and the first red soil layer, the second red soil layer and the third red soil layer form the filling cavity. The thickness of the first red soil layer is 30cm, the thickness of the second red soil layer is 30cm, the thickness of the third red soil layer is 40cm, and the weight is about 1800 kg; the radioactive solid waste in the filling chamber is about 350kg, and the height of the waste is 60 cm.
The bottom of soil column body 40 is for leaking hopper-shaped setting, filtrate drain pipe 49 is still installed to the bottom of soil column body 40. When the filtrate is excessive, the filtrate can be discharged to a wastewater treatment tank to be treated through a filtrate drain pipe 49 for subsequent treatment.
Preferably, each pipeline of the device is provided with a control valve, namely a first control valve is arranged on the pipeline between the ceiling 10 and the rainwater storage tank 20, a second control valve is arranged between the water pump 50 and the flow meter 60, a third control valve and a fourth control valve are arranged on the return pipe 51, and a fifth control valve is arranged on the cleaning pipe 52; a sixth control valve is arranged on the sewage drainage pipe 11, a seventh control valve is arranged on the tap water pipe 53, an eighth control valve is arranged on the filtrate drainage pipe 49, a ninth control valve is arranged between the soil column body 40 and the percolate collecting box 42, and a tenth control valve is arranged on the percolate sampling pipe; the purge pipe 711 is provided with an eleventh control valve.
The utility model discloses a theory of operation does: the rainwater collecting device is erected above a soil column body 40 through a ceiling 10, the ceiling 10 collects rainwater of natural rainfall, the rainwater is collected in a rainwater storage tank 20, then the rainwater in the rainwater storage tank 20 is quantitatively pumped above the soil column body 40 through a water pump 50 and a flowmeter 60, the rainwater is uniformly sprayed above soil of the experimental soil column body 40 through a leaching spray head 30, the soil column body 40 is provided with transverse and longitudinal uniformly distributed sampling holes, and the lateral filtrate collecting holes 721 can be moved to a required position through opening a lateral control valve 710 needing sampling and through the movement and rotation of an internal collecting pipe 72, so that filtrate flowing in the soil column body 40 and solids such as soil or radioactive solid waste contained in the filtrate are collected, then the transverse and longitudinal sampling is carried out, and the filtrate at the lower end of the soil column body 40 is collected through a leachate collecting box 42.
In the use case, the maximum rainfall of the Guangdong province is about 2500mm/a, the runoff coefficient of a non-paved road surface is 0.26, the evaporation capacity is about 1225mm/a, and the annual rainfall leaching of the soil column device is calculated and designed to be about 1.87m3Rainwater in Yuexi is collected in the rainwater storage tank 20 through the ceiling 10, and is pumped by the water pump 50 and the flow meter 60The rainwater in the rainwater storage tank 20 is quantitatively pumped above the soil pillar 40, and is uniformly sprayed on the experimental soil through the leaching spray head 30, and the spraying is carried out 3 times per month, 36 times in total, about 50L each time, and continuously for one year. After spraying, 3 sampling holes are respectively arranged on two sides of the waste residue, 2 sampling holes are arranged right below the waste residue, the number of the sampling holes is 8, and 6 sampling points are arranged on each sampling hole in an equidistant mode. By analysing the natural radionuclides in the soil (238U、226Ra、232Th、40K) And the concentrations of heavy metals (Cd, Cr, Pb, Hg and As) to study the migration of nuclides and heavy metals in radioactive solid wastes through the soil in the lower layer. Meanwhile, during the experiment, leachate samples are periodically collected from the leachate collection tank 42 every month, and the leachate is analyzed for natural radionuclides (R) ((R))238U、226Ra、232Th、40K) And the concentration of heavy metals (Cd, Cr, Pb, Hg and As) to study the leaching condition of radionuclide and heavy metals in the solid waste after rainwater leaching.
After the experiment of the earth pillar 40 is finished, the lateral sampling hole 41 arranged on the side of the earth pillar 40 can be used for sampling the transverse soil and the longitudinal soil, and the percolate below the earth pillar is collected for analytical research, so that the characteristic that the traditional earth pillar can only be used for single sampling is avoided.
The radioactive solid waste leaching device is provided with the ceiling 10, the rainwater storage tank 20, the leaching spray head 30 and the soil column body 40, the ceiling 10 can passively collect natural rainfall and store the natural rainfall in the underground rainwater storage tank 20, then according to different experimental settings, the rainwater in the storage tank is simulated at different rainfall intensities by using the water suction pump 50 and the flow meter 60 at specific flow rates to carry out leaching experiments, and the leaching spray head 30 can uniformly ensure that the rainwater is sprayed above the soil column body 40, so that the rainfall characteristics can be truly simulated; compared with other methods for preparing dilute acid solution to simulate rainfall, the experimental method for collecting and utilizing natural rainfall can be closer to the actual rainwater leaching effect and is more representative.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a radioactive solid waste leaching device with horizontal vertical migration sample, includes that the roof that has the rainwater to collect the chamber, connects the rainwater bin, the connection at roof top the leaching shower nozzle of rainwater bin and installing the soil column body of leaching shower nozzle below, the outlet pipeline of rainwater bin installs the suction pump and is located the flowmeter on the suction pump outlet pipe way, the suction pump with leaching shower nozzle intercommunication, its characterized in that:
a filling cavity for filling radioactive solid wastes, a lateral sampling hole communicated with the filling cavity and a percolate collecting box are formed in the soil column body; the soil column body is also provided with a transverse and longitudinal migration sampling assembly, and the transverse and longitudinal migration sampling assembly comprises an external collecting pipe and an internal collecting pipe which are mutually communicated; the external collecting pipe is provided with a lateral control valve; one end of the inner collecting pipe, which is close to the outer collecting pipe, is provided with a bearing; the inside collecting pipe is kept away from the one end of outside collecting pipe is equipped with the flexible end of wearing to locate soil column body outer end, flexible end is equipped with the side direction filtrating collecting hole that is used for collecting horizontal and vertical migration liquid.
2. The radioactive solid waste leaching device according to claim 1, wherein said telescopic end is a telescopic tube, said telescopic tube is provided with a scale.
3. The radioactive solid waste leaching device according to claim 2, wherein the extension tube is inclined towards the outer collecting tube, and the inclination angle of the extension tube is 10-20 °.
4. The radioactive solid waste leaching device according to claim 1, wherein one end of the outer collecting pipe is connected with a purge gas pipe, and the outer collecting pipe is inclined away from the purge gas pipe.
5. The radioactive solid waste leaching device with transverse and longitudinal migration sampling according to claim 1, wherein the rainwater storage tank is installed with a stirrer and a liquid level transmitter, and the stirrer and the liquid level transmitter are both electrically connected with the water pump.
6. The leaching apparatus for leaching radioactive solid wastes with transverse and longitudinal migration sampling according to claim 1, wherein the outlet pipe of the water pump is further provided with a return pipe and a cleaning pipe, the return pipe is communicated with the rainwater storage tank, and the outlet of the cleaning pipe is positioned at one end of the rainwater collection chamber.
7. The radioactive solid waste leaching device with transverse and longitudinal migration sampling according to claim 1, wherein the bottom of the ceiling is further installed with a sewage drain pipe communicated with the rainwater collection chamber.
8. The radioactive solid waste leaching device with transverse and longitudinal migration sampling according to claim 1, wherein the soil column is a reinforced concrete structure with an open top.
9. The radioactive solid waste leaching device according to claim 1, wherein the soil column is provided with a first red soil layer at the top, a second red soil layer at the side wall and a third red soil layer at the bottom, and the first red soil layer, the second red soil layer and the third red soil layer form the filling cavity.
10. The radioactive solid waste leaching device with transverse and longitudinal migration sampling according to claim 1, wherein the bottom of the soil column body is funnel-shaped structure, and the bottom of the soil column body is also provided with a filtrate drainage pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114878432A (en) * | 2022-04-29 | 2022-08-09 | 西安理工大学 | Experimental device for permeable pavement test platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878432A (en) * | 2022-04-29 | 2022-08-09 | 西安理工大学 | Experimental device for permeable pavement test platform |
| CN114878432B (en) * | 2022-04-29 | 2023-07-04 | 西安理工大学 | Experimental device for permeable pavement experimental platform |
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