Automatización de la etapa primaria en el proceso de tratamiento de aguas residuales industriales.

Abstract

Currently, the automation of the processes carried out within the Wastewater Treatment Plants contributes to significantly improve the quality of the water, either for discharge into the aquatic environment or for reuse purposes. This automation of processes is of vital importance since it implies less consumption and costs for energy, reducing the wear and tear of the equipment, extending its useful life, reducing labor in specific areas, taking advantage of time due to the reduction of breakdowns, and reduction cost of chemical additives avoiding waste. The purpose of this research work is to propose an automation architecture for the efficient control and supervision of the first stage of treatment, given that it is one of the most complex phases to monitor, due to the extensive use of field instruments such as sensors and actuators. , control and supervision instruments such as programmable logic controllers and SCADA systems. Modeling through use case, sequence and state diagrams attributed to the Unified Modeling Language (UML) allowed to elaborate, design and define the actors and functions of the subsystems that make up the Primary Stage. The simulation was assisted through the use of Petri nets, which allowed to determine the correct functionality of the subsystems thanks to the fulfillment of their properties of vivacity, limitation and reachability. Both tools were of great help in ensuring the dynamism of the system in general.