IoT System for Occupational Risks Prevention at a WWTP

Biohazards and noise risks in wastewater treatment plants are a real concern. These stations generate risks of gas inhalation due to contaminants carried by the wastewater and exposure to dangerous high noise generated by the work equipment. The stations are equipped with sensors that are capable of monitoring ambient gas levels and noise levels. This is not sufficient and geolocation of the operators is necessary. However, indoor geolocation is still a problem due to limited GPS accuracy. There are alternatives such as Bluetooth, which allow more accurate geolocation to be obtained. In this work, we present a IoT system that allows to geolocate the operators indoor through Bluetooth beacons and cross-reference it with the information from gas and noise sensors to prevent occupational risks.