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Wastewater treatment control method based on a rule adaptive recurrent fuzzy neural network

Junfei Qiao (Faculty of Information Technology, Beijing University of Technology, Beijing, China)
Gaitang Han (Faculty of Information Technology, Beijing University of Technology, Beijing, China)
Honggui Han (Beijing Key Laboratory of Computational Intelligence and Intelligent System, Beijing University of Technology, Beijing, China)
Wei Chai (Beijing Key Laboratory of Computational Intelligence and Intelligent System, Beijing University of Technology, Beijing, China)

International Journal of Intelligent Computing and Cybernetics

ISSN: 1756-378X

Article publication date: 12 June 2017

Abstract

Purpose

The purpose of this paper is to present an on-line modeling and controlling scheme based on the dynamic recurrent neural network for wastewater treatment system.

Design/methodology/approach

A control strategy based on rule adaptive recurrent neural network (RARFNN) is proposed in this paper to control the dissolved oxygen (DO) concentration and nitrate nitrogen (SNo) concentration. The structure of the RARFNN is self-organized by a rule adaptive algorithm, and the rule adaptive algorithm considers the overall information processing ability of neural network. Furthermore, a stability analysis method is given to prove the convergence of the proposed RARFNN.

Findings

By application in the control problem of wastewater treatment process (WWTP), results show that the proposed control method achieves better performance compared to other methods.

Originality/value

The proposed on-line modeling and controlling method uses the RARFNN to model and control the dynamic WWTP. The RARFNN can adjust its structure and parameters according to the changes of biochemical reactions and pollutant concentrations. And, the rule adaptive mechanism considers the overall information processing ability judgment of the neural network, which can ensure that the neural network contains the information of the biochemical reactions.

Keywords

Acknowledgements

This work was supported by the National Natural Science Foundation of China Grant Numbers (61622301, 61533002); Beijing Municipal Education Commission Science and Technology Development Program Grant Numbers (KZ201410005002, 201410005001); and the PhD Programs Foundation of Ministry of Education of China Grant Number (20131103110016).

Citation

Qiao, J., Han, G., Han, H. and Chai, W. (2017), "Wastewater treatment control method based on a rule adaptive recurrent fuzzy neural network", International Journal of Intelligent Computing and Cybernetics, Vol. 10 No. 2, pp. 94-110. https://doi.org/10.1108/IJICC-12-2016-0069

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited