Effect of nitrite, limited reactive settler and plant design configuration on the predicted performance of simultaneous C/N/P removal WWTPs
Guerrero Camacho, Francisco Javier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Flores Alsina, Xavier (Lunds universitet. Department of Measurement Technology and Industrial Electrical Engineering)
Guisasola, Albert (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Baeza Labat, Juan Antonio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Gernaey, Krist V. (Danmarks Tekniske Universitet. Institut for Kemiteknik)

Date:	2013
Abstract:	This paper describes a modelling study where five new benchmark plant design configurations for biological nutrient removal (A2/O, UCT, JHB, MUCT and BDP-5 stage) are simulated and evaluated under different model assumptions. The ASM2d including electron dependent decay rates is used as the reference model (A1). The second case (A2) adds nitrite as a new state variable, describing nitrification and denitrification as two-step processes. The third set of models (A3 and A4) considers different reactive settlers types (diffusion-limited/non limited). This study analyses the importance of these new model extensions to correctly describe the nitrification behaviour and the carbon source competition between ordinary heterotrophic organisms (OHO) and polyphosphate accumulating organisms (PAO) under certain operation conditions. The economic and environmental aspects when meeting the P discharge limits by adding an external carbon source are also studied.
Grants:	Ministerio de Ciencia e Innovación CTM2010-20384 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-815
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Benchmarking ; EBPR ; Reactive settler ; Two step nitrification ; Two step denitrification
Published in:	Bioresource technology, Vol. 136 (May 2013) , p. 680-688, ISSN 0960-8524

DOI: 10.1016/j.biortech.2013.03.021

Post-print 36 p, 1.9 MB

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