Case studies

Tecnopenta landfill monitoring: CTD sensors, level radar and LoRa network integrated with PLC and SCADA systems for wells and tanks

Environmental monitoring in landfills: Tecnopenta solutions for wells and tanks

Tecnopenta has started designing an integrated environmental monitoring system for landfill areas, with a specific focus on the control of water levels and the safety management of storage tanks. The system uses digital sensors connected via radio, fully compatible with SCADA and industrial PLC systems.

Monitoring wells for leachate and groundwater

The first installations involve level sensors and CTD probes (Conductivity, Temperature, Depth) placed in wells dedicated to the monitoring of groundwater. The sensors will be installed both inside and outside the storage areas, with the aim of detecting possible soil contamination.

The devices will be installed in watertight configurations using threaded fittings or well-cap adapters, at depths between 20 and 35 meters. Cable routing will be secured with sealed holes or existing support structures.

LoRa network technology and data transmission

All sensors will be connected to a LoRaWAN network, allowing radio communication up to 200 meters with low power consumption. Data will be collected by gateways compatible with SCADA, Modbus TCP/IP and Modbus RTU, and may also be transmitted via GPRS when needed.

Each sensor node will be self-powered with internal batteries or, where required, powered through a solar panel.

Monitoring in inclined wells and concrete wells

In addition to vertical wells, Tecnopenta will also install systems on inclined wells, with indirect measurement of the water level distance from the wellhead. The value will be corrected using geometric calculation to obtain the actual depth of the groundwater table.

In concrete wells, dedicated supports will be used to secure sensor boxes and ensure reliable data transmission.

Tank monitoring with level radar

The system also includes level radar installed on storage tanks and technical reservoirs, where foam presence makes traditional sensors difficult to operate. The radar devices will work with high measurement frequencies (every 5 minutes or less), enabling real-time operation of alarm systems.