Araújo, João PauloCunha, José BoaventuraOliveira, Paulo de MouraPires, Eduardo S.Coelho, João Paulo2011-05-232011-05-232010Araújo, João; Cunha, José; Oliveira, Paulo; Pires, Eduardo; Coelho, João (2010). Automation and control of the SORTEGEL wastewater plant. In 9th Portuguese Conference on Automatic Control.http://hdl.handle.net/10198/4471Food Processing Industries produce large amounts of wastewater with high environmental impact. Due to the high content of suspended matter and inadequate pH value of the wastewater, national laws prohibit direct discharges of the influent to the environment. This work describes the design and operation of a wastewater treatment plant installed in the Sortegel food-processing company located in Sortes, Portugal. This industry uses the water collected from groundwater wells to process raw materials and to wash the equipments, being the volume of wastewater produced season dependent (80 to 300m3/day). Results show that the implemented wastewater treatment plant and the automation solutions generate treated effluents that comply with the Portuguese legislation.engAutomationProcess controlProgrammable logic controllersWaste treatmentWater pollutionconference object