Journal
ENVIRONMENTAL MODELLING & SOFTWARE
Volume 19, Issue 10, Pages 919-928Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envsoft.2003.10.005
Keywords
neural networks; waste water treatment; model studies; prediction; optimization; biochemical oxygen demand; suspended solids
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Artificial neural networks (ANN) models were developed to predict the performance of a wastewater treatment plant (WWTP) based on past information. The data used in this work were obtained from a major conventional treatment plant in the Greater Cairo district, Egypt, with an average flow rate of 1 million m(3)/day. Daily records of biochemical oxygen demand (BOD) and suspended solids (SS) concentrations through various stages of the treatment process over 10 months were obtained from the plant laboratory. Exploratory data analysis was used to detect relationships in the data and evaluate data dependence. Two ANN-based models for prediction of BOD and SS concentrations in plant effluent are presented. The appropriate architecture of the neural network models was determined through several steps of training and testing of the models. The ANN-based models were found to provide an efficient and a robust tool in predicting WWTP performance. (C) 2003 Elsevier Ltd. All rights reserved.
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