Department of Environmental Engineering;
Faculty of Environment;
University of Tehran;
Tehran;
Iran;
Department of Environmental Preservation;
National Petrochemical Company;
Tehran;
Iran;
Department of Environmental Science;
Faculty of Science;
Zanjan University;
Zanjan;
Iran;
Fajr; Industrial; Wastewater; Treatment; Plant; Simulation; Artificial; Neural; Network; PCA; Low; TDS; Biological; Unit;