BROMATE REMOVAL PREDICTION IN DRINKING WATER BY USING THE LEAST SQUARES SUPPORT VECTOR MACHINE (LS-SVM)

Authors : Erdal KARADURMUŞ, Eda GÖZ, Nur TAŞKIN, Mehmet YÜCEER

Pages : 2145-2153

View : 35 | Download : 4

Publication Date : 2021-10-05

Article Type : Research Paper

Abstract :The main objective of this study was to develop Least Squares Support Vector Machine insert ignore into journalissuearticles values(LS-SVM); algorithm for prediction of bromate removal in drinking water. Adsorption method known as environmental-friendly and economical was used in the experimental part of this study to remove this harmful compound from drinking water. Technically insert ignore into journalissuearticles values(pure);, HCl-, NaOH- and NH3-modified activated carbons were prepared as adsorbent. Experimental studies were carried out with synthetic samples in three different concentrations. To forecast bromate removal percentage particle size and amount of the activated carbon, height and diameter of the column, volumetric flowrate, and initial concentration were selected as the input variables Radial basis kernel function was selected as activation function in algorithm. Algorithm parameters that γ and σ2 values set as 415 and 3.956 respectively. To evaluate model performance some performance indices were calculated. Correlation coefficient insert ignore into journalissuearticles values(R);, mean absolute percentage error insert ignore into journalissuearticles values(MAPE%); and root mean square error insert ignore into journalissuearticles values(RMSE); value for the training and testing phase R:0.996, MAPE%: 2.59 RMSE: 2.14 and R:0.994, MAPE%: 3.21 RMSE: 2.51 respectively. These results obtained from this study were compared with the ANN model previously developed with the same input data. As a result, LS-SVM has better performance than ANN.
Keywords : Drinking water treatment, bromate removal, artificial intelligence, LS SVM

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