Prediction of COD in Industrial Wastewater Treatment Plant using Artificial Neural Network

Abstract In this investigation, the modeling of the Aksaray industrial wastewater treatment plant was undertaken using artificial neural networks with various architectures in the Matlab software. The dataset utilized in this study was collected from the Aksaray wastewater treatment plant over a nine-month period through daily records. The treatment efficiency of the plant was assessed based on the output values of Chemical Oxygen Demand (COD). Principal Component Analysis (PCA) was applied to furnish input for the Artificial Neural Network (ANN). The model's performance was evaluated using the Mean Squared Error (MSE) and correlation coefficient (R²) parameters. The optimal architecture for the neural network model was determined through several trial and error iterations. According to the modeling results, the ANN exhibited a high predictive capability for plant performance, with a R²reaching up to 0.9997 when comparing the observed and predicted output variables.