The modelling of an anoxic-aerobic biological reactor

S. R.M. Kutty, H. A. Gasim, M. H. Isa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The anoxic-aerobic wastewater treatment process increases wastewater treatment efficiency and decreases the aeration basin. In this study, raw data obtained from two anoxic-aerobic biological reactors (AABR) used for the trseatment of different loads of petroleum refinery wastewater (PRW) were used for developing a mathematical model that could simulate the process trend. The data consists of 160 entries and was gathered over approximately 180 days from two AABR reactors that were continuously operated in parallel. Two configurations of artificial neural networks were compared and different numbers of neurons were tested for an optimum model that could represent the process behaviour under different loads. The tangent sigmoid transfer function (Tansig) at the hidden layer and a linear transfer function (Purelin) at the output layer with 9 hidden neurons were selected as the best optimum model. From the simulation model, the highest removal efficiency was observed as 96%, which was recorded for chemical oxygen demand (COD) influent concentration of 3150 mg/L. Effluent concentration below 100 mg/L was recorded for influent COD concentration, which ranged between 150 and 700 mg/L corresponding to the removal efficiency in the range of 78-88%.

Original languageEnglish
Title of host publicationWaste Management and the Environment VII
PublisherWITPress
Pages213-221
Number of pages9
Volume180
ISBN (Print)9781845647605
DOIs
Publication statusPublished - 01 Jan 2014
Event7th International Conference on Waste Management and the Environment, WM 2014 - Ancona, Italy
Duration: 12 May 201414 May 2014

Other

Other7th International Conference on Waste Management and the Environment, WM 2014
CountryItaly
CityAncona
Period12/05/1414/05/14

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

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  • Cite this

    Kutty, S. R. M., Gasim, H. A., & Isa, M. H. (2014). The modelling of an anoxic-aerobic biological reactor. In Waste Management and the Environment VII (Vol. 180, pp. 213-221). WITPress. https://doi.org/10.2495/WM140181