A Leachate Management System for Low-Radiation Associated Mineral Solid Waste Landfills

The automated system of liquid level detectors and radioactive material detectors has solved the problem of low efficiency in leachate management in landfills of low-level radioactive associated mineral solid waste, enabling real-time monitoring and emergency control of leachate, and improving environmental safety and management efficiency.

CN224507987UActive Publication Date: 2026-07-17CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the management of leachate from landfills containing low-level radioactive associated mineral solid waste relies on regular manual inspections, resulting in low management efficiency, inability to achieve real-time monitoring, difficulty in timely detection of abnormal changes in leachate, and the risk of environmental pollution.

Method used

An automated system consisting of a level detector, a radioactive material detector, and a control cabinet monitors the leachate level and composition in real time. It can promptly activate emergency measures based on preset thresholds to block high-risk leachate and achieve continuous automated monitoring and control.

Benefits of technology

It enables continuous automated monitoring of leachate level and composition, avoids the radiation risk of manual inspection, prevents leachate contamination in a timely manner, reduces labor costs, and improves management efficiency and safety.

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Abstract

This utility model relates to a leachate management system for landfills containing low-level radioactive associated mineral solid waste, comprising a leachate treatment unit and a control cabinet. The leachate treatment unit includes a leachate well and a level detector, the level detector being installed inside the leachate well and used to detect the leachate level in the well. The first input terminal of the control cabinet is electrically connected to the level detector. This application achieves continuous automated monitoring of the leachate level through the level detector, avoiding the radiation risks of manual inspection; and promptly activates emergency measures by determining a preset level threshold to prevent the overflow of radioactive leachate and environmental pollution.
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Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, specifically to a leachate control system for landfills of low-level radioactive associated mineral solid waste. Background Technology

[0002] In today's environmental protection and resource management field, landfilling of solid waste is a common disposal method. In particular, the landfilling of low-level radioactive associated mineral solid waste places extremely high demands on leachate management during the landfilling process due to its special radioactive and chemical properties.

[0003] Currently, leachate management in solid waste landfilling, especially in the landfilling of low-level radioactive associated minerals, mainly relies on traditional technologies and methods. Existing technologies often employ manual, periodic inspections and sampling analysis. Staff need to regularly visit various monitoring points at the landfill to collect leachate samples and bring them back to the laboratory for analysis to assess key indicators such as leachate composition and concentration. This manual approach has the following drawbacks:

[0004] (1) Low management efficiency. Due to the large area of ​​the landfill and the wide distribution of monitoring points, manual inspection and sampling require a lot of time and manpower. Moreover, the frequency of regular sampling is limited, making it difficult to accurately grasp the real-time changes in leachate. This results in the inability to detect and take effective countermeasures in a timely manner when abnormal changes occur in leachate quality or quantity, which may pose a potential pollution risk to the surrounding environment.

[0005] (2) Existing technologies cannot achieve real-time monitoring of leachate. Current monitoring methods are mainly based on discrete sampling and analysis, relying on manual / timed sampling, resulting in "data gaps during sampling intervals." They cannot capture real-time risks such as sudden leaks and abnormal concentration fluctuations, nor can they obtain continuous dynamic information about leachate in landfills. This makes it difficult for managers to accurately understand the generation, migration, and transformation patterns of leachate, which is not conducive to formulating scientific and reasonable leachate treatment and management plans. Utility Model Content

[0006] Based on the above description, this utility model provides a leachate management system for landfills containing low-level radioactive associated mineral solid waste, aiming to solve the problem that existing leachate management often relies on manual periodic inspections.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0008] A leachate management system for a landfill of low-level radioactive associated mineral solid waste includes:

[0009] A leachate treatment unit includes a leachate well and a level detector, wherein the level detector is located inside the leachate well and is used to detect the level of leachate in the leachate well;

[0010] A control cabinet, wherein the first input terminal of the control cabinet is electrically connected to the liquid level detector.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the leachate treatment unit includes a suction pump and a first delivery pipe. The suction pump is located inside the leachate well. The controlled end of the suction pump is electrically connected to the first control end of the control cabinet. One end of the first delivery pipe is connected to the discharge end of the suction pump.

[0013] Furthermore, the leachate treatment unit includes a first solenoid valve, which is disposed on the first delivery pipe, and the controlled end of the first solenoid valve is electrically connected to the second control end of the control cabinet.

[0014] Furthermore, the leachate treatment unit includes a first radioactive material detector, which is located inside the leachate well, and the output terminal of the first radioactive material detector is electrically connected to the second input terminal of the control cabinet.

[0015] Furthermore, the leachate treatment unit includes a second radioactive material detector, which is located inside the leachate well, and the output of the second radioactive material detector is electrically connected to the third input of the control cabinet.

[0016] Furthermore, it includes a cloud server, which is communicatively connected to the control cabinet.

[0017] Furthermore, it includes a second delivery pipe and a second solenoid valve. One end of the second delivery pipe is connected to the first delivery pipe, and the second solenoid valve is disposed on the second delivery pipe. The controlled end of the second solenoid valve is electrically connected to the third control end of the control cabinet.

[0018] Furthermore, it includes a monitoring camera, which is mounted around the second solenoid valve, and the output of the monitoring camera is electrically connected to the fourth input of the control cabinet.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] (1) This application realizes continuous automated monitoring of leachate level through a liquid level detector, avoiding the radiation risk of manual inspection; and promptly activates emergency measures by determining the preset liquid level threshold to prevent the overflow of radioactive leachate and pollution of the environment.

[0021] (2) This application uses a first radioactive material detector to detect the radioactivity of α particles and β particles in leachate, and a second radioactive material detector to detect the radioactivity of γ rays in leachate. When the radioactivity exceeds the standard, the suction pump and the first solenoid valve are shut off, thereby blocking high-risk leachate from entering the treatment process from the source. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a low-level radioactive associated mineral solid waste landfill leachate control system provided in this embodiment of the present invention;

[0024] Figure 2 This is a circuit connection diagram of a low-level radioactive associated mineral solid waste landfill leachate control system provided in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Leachate treatment unit; 11. Leachate well; 12. Liquid level detector; 13. Suction pump; 14. First solenoid valve; 15. First radioactive material detector; 16. Second radioactive material detector;

[0027] 2. Control cabinet;

[0028] 3. Cloud server;

[0029] 4. Second delivery pipe;

[0030] 5. Second solenoid valve;

[0031] 6. Surveillance cameras. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0035] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0036] Reference Figures 1 to 2 As shown, this utility model provides a technical solution: a leachate management system for a landfill of low-level radioactive associated mineral solid waste, including a leachate treatment unit 1 and a control cabinet 2; the leachate treatment unit 1 includes a leachate well 11 and a level detector 12, which is installed in the leachate well 11 and is used to detect the level of leachate in the leachate well 11; the first input terminal of the control cabinet 2 is electrically connected to the level detector 12.

[0037] For example, the control cabinet 12 is a cabinet that integrates a controller, which can analyze data from various detectors and perform corresponding control processing on the signals of the suction pump 13 and various solenoid valves.

[0038] In this embodiment, the level detector 12 collects the liquid level height in the well in real time and converts it into an electrical signal, which is then transmitted to the control cabinet 2. The control cabinet 2 triggers an alarm when the liquid level is greater than or equal to a preset liquid level threshold. The level detector 12 enables continuous automated monitoring of the leachate level, avoiding the radiation risks of manual inspections; and the preset liquid level threshold allows for timely activation of emergency measures to prevent the overflow of radioactive leachate and environmental pollution.

[0039] Reference Figures 1 to 2 As shown, in some embodiments, the leachate treatment unit 1 includes a suction pump 13 and a first delivery pipe. The suction pump 13 is located in the leachate well 11. The controlled end of the suction pump 13 is electrically connected to the first control end of the control cabinet 2. One end of the first delivery pipe is connected to the discharge end of the suction pump 13.

[0040] In this embodiment, when the liquid level is greater than or equal to a preset liquid level threshold, the control cabinet 2 sends a start signal to the suction pump 13 to pump the leachate into the first delivery pipe, and the leachate flows to the wastewater treatment plant through the first delivery pipe; the pump automatically stops when the liquid level is less than or equal to the preset liquid level threshold. By establishing a closed-loop control from liquid level to pumping, the timely transfer of leachate is ensured.

[0041] Reference Figures 1 to 2 As shown, in some embodiments, the leachate treatment unit 1 includes a first solenoid valve 14, which is disposed on the first delivery pipe, and the controlled end of the first solenoid valve 14 is electrically connected to the second control end of the control cabinet 2.

[0042] In this embodiment, when the suction pump 13 starts, the control cabinet 2 simultaneously opens the first solenoid valve 14; if the suction pump 13 malfunctions or the radioactivity exceeds the standard, the control cabinet 2 immediately closes the first solenoid valve 14 to cut off the first delivery pipe. In this way, the linkage between the first solenoid valve 14 and the suction pump 13 prevents accidental discharge, and in an emergency, it can physically isolate the radioactive leachate to avoid the spread of pollution.

[0043] Reference Figures 1 to 2 As shown, in some embodiments, the leachate treatment unit 1 includes a first radioactive material detector 15, which is disposed in the leachate well 11, and the output terminal of the first radioactive material detector 15 is electrically connected to the second input terminal of the control cabinet 2.

[0044] For example, the first radioactive material detector 15 can be an α or β radioactive detector, etc.

[0045] In this embodiment, the first radioactive material detector 15 detects the radioactivity of alpha and beta particles in the leachate and feeds back the radioactivity of alpha and beta particles to the control cabinet 2. The control cabinet 2 compares the radioactivity of alpha and beta particles with national standard limits. If the limits are exceeded, the suction pump 13 and the first solenoid valve 14 are shut down. This can prevent high-risk leachate from entering the treatment process at the source.

[0046] Reference Figures 1 to 2 As shown, in some embodiments, the leachate treatment unit 1 includes a second radioactive material detector 16, which is disposed in the leachate well 11, and the output terminal of the second radioactive material detector 16 is electrically connected to the third input terminal of the control cabinet 2.

[0047] For example, the second radioactive material detector 16 can be a gamma-ray radioactive detector, etc.

[0048] In this embodiment, the second radioactive material detector 16 detects gamma rays (e.g., in the leachate) in the leachate. 238 U、 232 Th、 226 The system measures the radioactivity of γ-rays (such as Ra) and feeds back the radioactivity of γ-rays to control cabinet 2. Control cabinet 2 compares the radioactivity of γ-rays with the national standard limit. If the limit is exceeded, the suction pump 13 and the first solenoid valve 14 are shut down. This prevents high-risk leachate from entering the treatment process at the source.

[0049] Reference Figure 2 As shown, in some embodiments, the leachate management system includes a cloud server 3, which is communicatively connected to the control cabinet 2.

[0050] In this embodiment, control cabinet 2 uploads liquid level and radioactivity data to cloud server 3 in real time, generating dynamic curves. This allows managers to remotely view or adjust control parameters via a web-based mobile device. This unattended operation and maintenance reduces labor costs and radiation exposure; it also enables historical data tracing and pollution spread simulation and prediction, enhancing long-term monitoring capabilities.

[0051] It should be noted that mobile devices can be computers, mobile phones, etc.

[0052] Reference Figures 1 to 2 As shown, in some embodiments, the leachate control system includes a second delivery pipe 4 and a second solenoid valve 5. One end of the second delivery pipe 4 is connected to the first delivery pipe, and the second solenoid valve 5 is disposed on the second delivery pipe 4. The controlled end of the second solenoid valve 5 is electrically connected to the third control end of the control cabinet 2.

[0053] In this embodiment, after the pumping truck is connected to the second delivery pipe 4, the control cabinet 2 controls the suction pump 13 and the second solenoid valve 5 to start. The suction pump 13 pumps the leachate into the first delivery pipe, and then through the second delivery pipe 4 to the pumping truck, thus transferring the leachate.

[0054] Reference Figures 1 to 2As shown, in some embodiments, the leachate control system includes a monitoring camera 6, which is mounted around the second solenoid valve 5, and the output of the monitoring camera 6 is electrically connected to the fourth input of the control cabinet 2.

[0055] In this embodiment, when the water pump truck is connected to the second delivery pipe 4, the monitoring camera 6 captures the image and automatically archives it, thereby assisting in post-event traceability analysis.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-level radioactive waste landfill leachate management system, characterized in that, include: The leachate treatment unit (1) includes a leachate well (11) and a level detector (12). The level detector (12) is located in the leachate well (11) and is used to detect the level of leachate in the leachate well (11). Control cabinet (2), the first input terminal of which is electrically connected to the liquid level detector (12).

2. The low-level waste mine waste landfill leachate management system of claim 1, wherein, The leachate treatment unit (1) includes a suction pump (13) and a first delivery pipe. The suction pump (13) is located in the leachate well (11). The controlled end of the suction pump (13) is electrically connected to the first control end of the control cabinet (2). One end of the first delivery pipe is connected to the discharge end of the suction pump (13).

3. The low-level waste mine waste landfill leachate management system of claim 2, wherein, The leachate treatment unit (1) includes a first solenoid valve (14), which is located on the first delivery pipe. The controlled end of the first solenoid valve (14) is electrically connected to the second control end of the control cabinet (2).

4. The low-level waste and associated mine solid waste landfill leachate management system of claim 3, wherein, The leachate treatment unit (1) includes a first radioactive material detector (15), which is located in the leachate well (11). The output of the first radioactive material detector (15) is electrically connected to the second input of the control cabinet (2).

5. The low-level waste mine waste landfill leachate management system of claim 4, wherein, The leachate treatment unit (1) includes a second radioactive material detector (16), which is located in the leachate well (11). The output of the second radioactive material detector (16) is electrically connected to the third input of the control cabinet (2).

6. The low-level waste and associated mine solid waste landfill leachate management system of claim 1, wherein, It includes a cloud server (3), which is communicatively connected to the control cabinet (2).

7. The low-level waste mine waste landfill leachate management system of claim 2 or 3, wherein, It includes a second delivery pipe (4) and a second solenoid valve (5). One end of the second delivery pipe (4) is connected to the first delivery pipe. The second solenoid valve (5) is located on the second delivery pipe (4). The controlled end of the second solenoid valve (5) is electrically connected to the third control end of the control cabinet (2).

8. The low-level waste and associated mine solid waste landfill leachate management system of claim 7, wherein, Includes a monitoring camera (6), which is installed around the second solenoid valve (5), and the output of the monitoring camera (6) is electrically connected to the fourth input of the control cabinet (2).