Volume 11, Issue 4 (8-2024)
J Environ Health Eng 2024, 11(4): 380-393 |
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Bagheri A, Sadani M, karimi M. Effluent quality prediction of one of the urban wastewater treatment plants using machine learning algorithms. J Environ Health Eng 2024; 11 (4) :380-393
URL: http://jehe.abzums.ac.ir/article-1-1059-en.html
URL: http://jehe.abzums.ac.ir/article-1-1059-en.html
MPH student School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract: (759 Views)
Background: Mathematical and statistical simulators can significantly reduce the management costs of wastewater treatment systems. This research aimed to predict the effluent quality of an urban wastewater treatment plant in Tehran using machine learning algorithms from 2017 to 2021.
Materials and Methods: This descriptive-analytical study utilized monitoring data from the influent and effluent of the wastewater treatment plant, which were prepared for analysis. In the second stage, the data were refined, processed, and converted into dummy variables to facilitate entry into data mining algorithms. The Artificial Neural Network (ANN) algorithm and the M5 tree model were then evaluated to identify the best model for predicting the concentration of Chemical Oxygen Demand (COD) in the effluent. In this process, 70% of the data were allocated for training and 30% for validation using Python software. The best model was selected based on regression analysis, comparing the R² and RMSE indices.
Results: The findings indicated that the ANN model, with a coefficient of determination (R²) of 0.72, outperformed the M5 model, which had an R² of 0.68, in predicting the output COD concentration—an indicator of the treatment plant's efficiency. Additionally, regression analysis revealed that BOD₅ and TSS exhibited the highest correlation with CODout.
Conclusion: The results of the ANN and M5 models were within an acceptable range based on statistical indicators, demonstrating their potential for effectively estimating data in wastewater treatment plants.
Materials and Methods: This descriptive-analytical study utilized monitoring data from the influent and effluent of the wastewater treatment plant, which were prepared for analysis. In the second stage, the data were refined, processed, and converted into dummy variables to facilitate entry into data mining algorithms. The Artificial Neural Network (ANN) algorithm and the M5 tree model were then evaluated to identify the best model for predicting the concentration of Chemical Oxygen Demand (COD) in the effluent. In this process, 70% of the data were allocated for training and 30% for validation using Python software. The best model was selected based on regression analysis, comparing the R² and RMSE indices.
Results: The findings indicated that the ANN model, with a coefficient of determination (R²) of 0.72, outperformed the M5 model, which had an R² of 0.68, in predicting the output COD concentration—an indicator of the treatment plant's efficiency. Additionally, regression analysis revealed that BOD₅ and TSS exhibited the highest correlation with CODout.
Conclusion: The results of the ANN and M5 models were within an acceptable range based on statistical indicators, demonstrating their potential for effectively estimating data in wastewater treatment plants.
Keywords: Machine learning algorithms, artificial neural network, M5 model tree, regression, chemical oxygen demand
Type of Study: Research |
Subject:
Special
Received: 2024/08/28 | Accepted: 2024/09/29 | Published: 2024/11/13
Received: 2024/08/28 | Accepted: 2024/09/29 | Published: 2024/11/13
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