How do the anti-leakage devices in Underground Garbage Collection Storage System work?

The anti-leakage device of the Underground Garbage Collection Storage System achieves its anti-leakage function through multi-layer structural design, material properties, and intelligent system collaboration. The specific working principle is as follows:

1. Anti-leakage Design of the Physical Structural Layer

Underground Container Sealing: The underground waste storage container is made of laser-welded. Sealing strips or welding processes are used to achieve a tight seal at the joints, structurally blocking the channels for leachate leakage. For example, rubber sealing rings are installed at the connection between the container and the ground-level disposal opening to prevent liquid from seeping out through gaps.

Imperile Membrane and Foundation Layer: An impermeable membrane is laid at the bottom and around the underground container, combined with compacted clay to form a composite impermeable layer. This design effectively prevents leachate from seeping into the underground soil and water bodies, while also preventing groundwater backflow into the container.

2. Leachate Collection and Drainage System:

Zoned Collection: A collection tank and drainage slope are installed inside the underground container, allowing leachate to flow into the collection tank along the slope. Some devices also feature filter plates below the discharge port to first separate the solid and liquid waste. Liquid waste passes through the filter plate into the leachate storage chamber, while solid waste enters the storage area, reducing leachate generation at the source.

Directional Discharge: The collection tank is connected to the municipal sewage network or leachate treatment equipment via a dedicated conduit. The conduit is equipped with valves and filters, allowing for timed discharge or automatic discharge based on liquid level, ensuring leachate does not accumulate inside the tank.

3. Intelligent Monitoring and Early Warning: Liquid Level and Leakage Sensors: Liquid level sensors and leakage detection probes are installed inside the underground tank to monitor the leachate level and tank sealing in real time. Once an abnormal rise in water level or leakage signal is detected, the system immediately sends an alarm to maintenance personnel for timely investigation and handling.

Joint Emergency Measures: In case of leakage risk, some intelligent devices can automatically close valves inside the underground tank and activate backup anti-seepage plans anti-seepage mats and emergency pumping devices) to prevent further pollution.

4. Dual Guarantee of Materials and Processes Key components of the equipment are made of corrosion-resistant and anti-aging materials, capable of withstanding the chemical corrosion of landfill leachate for extended periods.

The manufacturing process of the underground enclosure emphasizes seamless welding and pressure testing to ensure structural airtightness even under full load operation.

Through this multi-layered design of "structural sealing + directional drainage + intelligent monitoring + material corrosion protection," the underground waste collection and sorting station's anti-leakage device effectively prevents landfill leachate from polluting soil and water bodies, achieving a balance between environmental protection and practicality.