Evaluation of the use of air quality monitoring stations based on electrochemical sensors for early odour detection

Abstract

The study evaluates the solution for H2S monitoring in wastewater treatment environments to detect critical points in the process and to recommend optimal locations for odours early detection or possible emission sources. The air quality monitoring station used in the study is Kunak AIR A10, based on electrochemical sensors, which was placed at 10 possible critical points of the WWTP, which were determined in a previous study. After the study, no average values exceeding the H2S WHO limit were detected, except at some locations where higher H2S concentrations were reached punctually. It was determined that this technology is suitable for the monitoring of H2S, being possible to analyse the concentration of H2S in different critical points, as well as to evaluate the corrective measures carried out in the WWTP.