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Parameter estimation of activated sludge process based on an improved cuckoo search algorithm

journal contribution
posted on 2024-10-30, 14:11 authored by Xianjun Du, Junlu Wang, Veeriah JegatheesanVeeriah Jegatheesan, Guohua Shi
It is essential to use appropriate values for kinetic parameters in activated sludge model when the model is applied for wastewater treatment processes under different environments. An improved cuckoo search (ICS) algorithm was proposed in this paper for the estimation of kinetic parameters used in Activated Sludge Model No. 1 (ASM1). ICS is tested for its speed and accuracy in reaching solution by searching global minima of six standard functions. Cyclical adjustment strategy was employed into the detected probability to increase searching ability. Meanwhile, the searching step was adaptively adjusted based on the optimal nest of the last generation and the current iteration numbers. Subsequently, ICS is used to estimate 7 sensitive parameters in ASM1 for practical applications. Field data are used to validate prediction accuracy of ASM1 with estimated parameters. Predicted results of the model are closer to the actual data with adjusted parameters.

History

Journal

Bioresource Technology

Volume

249

Start page

447

End page

456

Total pages

10

Publisher

Elsevier

Place published

Netherlands

Language

English

Copyright

© 2017 Elsevier Ltd

Former Identifier

2006080894

Esploro creation date

2020-06-22

Fedora creation date

2018-09-03

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