Abstract
This article briefly presents how to monitor a technological process in a municipal WWTP, in order to better understand the treatment processes. Monitoring the parameters of wastewater in a treatment plant, involves monitoring the quality of wastewater through measuring and control equipment, sampling wastewater as accurately and as many points as possible, the ideal case being after each technological object or treatment step and analysis of wastewater samples as accurately as possible, also the ideal case being compliance with well-defined methodologies. Following the monitoring of wastewater parameters, data and study results are obtained that can be used to evaluate the technological process, make graphs and tables or to optimize technological processes. The research methodology consists in the presentation of the way of monitoring the wastewater parameters with the measuring and control equipment, the presentation of the sampling method and the analysis method, after which the obtained data will be presented graphically and tabularly.