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Modelling and Optimizing Pyrene Removal from the Soil by Phytoremediation using Response Surface Methodology, Artificial Neural Networks, and Genetic Algorithm

This study aimed to model and optimize pyrene removal from the soil contaminated by sorghum bicolor plant using Response Surface Methodology (RSM) and Artificial Neural Network (ANN) with Genetic Algorithm (GA) approach. Here, the effects of indole acetic acid (IAA) and pseudomonas aeruginosa bacter...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2019-12, Vol.237, p.124486, Article 124486
Main Authors: Mohammadi, Farzaneh, Samaei, Mohammad Reza, Azhdarpoor, Abooalfazl, Teiri, Hakimeh, Badeenezhad, Ahmad, Rostami, Saeid
Format: Article
Language:English
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Summary:This study aimed to model and optimize pyrene removal from the soil contaminated by sorghum bicolor plant using Response Surface Methodology (RSM) and Artificial Neural Network (ANN) with Genetic Algorithm (GA) approach. Here, the effects of indole acetic acid (IAA) and pseudomonas aeruginosa bacteria on increasing pyrene removal efficiency by phytoremediation process was studied. The experimental design was done using the Box-Behnken Design (BBD) technique. In the RSM model, the non-linear second-order model was in good agreement with the laboratory results. A two-layer Feed-Forward Back-Propagation Neural Network (FFBPNN) model was designed. Various training algorithms were evaluated and the Levenberg Marquardt (LM) algorithm was selected as the best one. Existence of eight neurons in the hidden layer leads to the highest R and lowest MSE and MAE. The results of the GA determined the optimum performance conditions. The results showed that using indole acetic acid and pseudomonas bacteria increased the efficiency of the sorghum plant in removing pyrene from the soil. The comparison obviously indicated that the prediction capability of the ANN model was much better than that of the RSM model. •RSM, ANN and GA were applied for modelling and optimization of the pyrene removal from the soil by sorghum plant.•A MLP Neural Network model with LM training algorithm and 4:8:1 topology was selected as the best one.•The results of the genetic algorithm were determined the optimum performance conditions.•The comparison obviously indicates that the prediction capabilities of ANN model are much better than the RSM model.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2019.124486