Web of Science: 10 citations, Scopus: 11 citations, Google Scholar: citations,
High-throughput nitritation of reject water with a novel ammonium control loop : stable effluent generation for anammox or heterotrophic denitritation
Torà Suárez, Josep Anton (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Lafuente Sancho, Francisco Javier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Garcia i Belinchón, Carme (CETaqua)
Bouchy, Lynne (CETaqua)
Carrera, Julián (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)

Date: 2014
Abstract: This work presents a new control system for the nitritation of high-strength ammonium wastewater as reject water from sludge dewatering. It is based on three independent feedback control loops: (i) DO control by manipulating the aeration flow-rate, (ii) pH control with the addition of solid Na₂CO₃ and (iii) control of NH₄+—N concentration in the reactor using the influent flow-rate as the manipulated variable. Its application in an activated sludge configuration with one reactor and a settler, demonstrated: (i) capability to achieve stable effluent composition with proper NO₂—N/NH₄+—N ratio for anammox treatment and ii) possibility to obtain an effluent with full nitritation suitable for heterotrophic denitrification only modifying the ammonium setpoint. A nitrogen loading rate (NLR) up to 5. 0 ± 1. 0 gN L⁻¹ d⁻¹ was stably treated using real reject water (T = 30ºC, pH = 7. 5) with a NO₂—N/(NO₂—N+NO₃—N) ratio of 99%. NLR reached up to 9. 3 ± 0. 5 gN L⁻¹ d⁻¹ with synthetic wastewater.
Note: Número d'acord de subvenció AGAUR/2009/SGR-815
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; acceptedVersion
Subject: Anammox ; AOB ; Control ; Partial nitrification ; Nitritation ; TAN
Published in: Chemical engineering journal, Vol. 243 (May 2014) , p. 265-271, ISSN 1385-8947

DOI: 10.1016/j.cej.2013.11.056


Post-print
32 p, 1.1 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Engineering > GENOCOV
Articles > Research articles
Articles > Published articles

 Record created 2017-01-27, last modified 2019-07-21



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