Based on on/off aeration strategies, this paper describes all the steps involved in the development and implementation of three identification algorithms aimed at monitoring the oxygen uptake rate (OUR), the oxygen mass-transfer coefficient (KLa), and oxygen transfer efficiency (OTE) in aerated biological reactors. Firstly, a detailed explanation of the theoretical background behind every algorithm is given. In addition, practical issues have also been taken into account in order to guarantee the quality of estimations. Finally, the three algorithms have been implemented and validated in a full-scale industrial wastewater treatment plant with satisfactory results. Although short-term noise has been observed in the estimated data (especially at high OURs), the medium and long-term data trajectories have been correctly reproduced.
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Research Article|
July 01 2009
Online monitoring of OUR, KLa and OTE indicators: practical implementation in full-scale industrial WWTPs
I. Irizar;
1CEIT and TECNUN (University of Navarra), P° de Manuel Lardizabal 15, 20018 San Sebastian, Spain E-mail: iirizar@ceit.es; jazambrano@ceit.es
E-mail: iirizar@ceit.es
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J. A. Zambrano;
J. A. Zambrano
1CEIT and TECNUN (University of Navarra), P° de Manuel Lardizabal 15, 20018 San Sebastian, Spain E-mail: iirizar@ceit.es; jazambrano@ceit.es
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R. García
R. García
3PRAXAIR España S.L., C/Orense 11, 28020 Madrid, Spain E-mail: rafael_garcía@praxair.com
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Water Sci Technol (2009) 60 (2): 459–466.
Citation
I. Irizar, J. A. Zambrano, D. Montoya, M. De Gracia, R. García; Online monitoring of OUR, KLa and OTE indicators: practical implementation in full-scale industrial WWTPs. Water Sci Technol 1 July 2009; 60 (2): 459–466. doi: https://doi.org/10.2166/wst.2009.363
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