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Long-term operation of a partial nitritation pilot plant treating leachate with extremely high ammonium concentration prior to an anammox process

The goal of this work was to demonstrate the feasibility of treating leachate with high ammonium concentrations using the SBR technology, as a preparative step for the treatment in an anammox reactor. The cycle was based on a step-feed strategy, alternating anoxic and aerobic conditions. Results of the study verified the viability of this process, treating an influent with concentration up to 5000 mg N-NH4+ L-1. An effluent with about 1500-2000 mg N-NH4+ L-1 and 2000-3000 mg N-NO2- L-1 was achieved, presenting a nitrite to ammonium molar ratio close to the 1.32 required by the anammox. Furthermore, taking advantage of the biodegradable organic matter, the operational strategy allowed denitrifying about 200 mg N-NO2- L-1. The extreme operational conditions during the long-term resulted on the selection of a sole AOB phylotype, identified by molecular techniques as Nitrosomonas sp. IWT514

The authors would like to thank the Ministry of Education and Science (FPU Grant Program, AP20043816), CESPA-GR, the PANAMMOX project (CIT-310200-2007-90, PET-2006-0604), the NIMOX project (DEX-560620-2008-149), the NOVEDAR CONSOLIDER project (CSD-2007-0055) and the Spanish Government (CTQ2008-06865-C02-01/PPQ) for their financial support in this study

© Bioresource Technology, 2009, vol. 100, núm. 23, p. 5624-5632

Elsevier

Manager: Ministerio de Ciencia e Innovación (Espanya)
Ministerio de Educación y Ciencia (Espanya)
Author: Ganigué Pagès, Ramon
Gabarró i Bartual, Jordi
Sànchez Melsió, Alexandre
Ruscalleda Beylier, Maël
López Castillo, Helio
Vila Portella, Xavier
Colprim Galceran, Jesús
Balaguer i Condom, Maria Dolors
Date: 2009 December
Abstract: The goal of this work was to demonstrate the feasibility of treating leachate with high ammonium concentrations using the SBR technology, as a preparative step for the treatment in an anammox reactor. The cycle was based on a step-feed strategy, alternating anoxic and aerobic conditions. Results of the study verified the viability of this process, treating an influent with concentration up to 5000 mg N-NH4+ L-1. An effluent with about 1500-2000 mg N-NH4+ L-1 and 2000-3000 mg N-NO2- L-1 was achieved, presenting a nitrite to ammonium molar ratio close to the 1.32 required by the anammox. Furthermore, taking advantage of the biodegradable organic matter, the operational strategy allowed denitrifying about 200 mg N-NO2- L-1. The extreme operational conditions during the long-term resulted on the selection of a sole AOB phylotype, identified by molecular techniques as Nitrosomonas sp. IWT514
The authors would like to thank the Ministry of Education and Science (FPU Grant Program, AP20043816), CESPA-GR, the PANAMMOX project (CIT-310200-2007-90, PET-2006-0604), the NIMOX project (DEX-560620-2008-149), the NOVEDAR CONSOLIDER project (CSD-2007-0055) and the Spanish Government (CTQ2008-06865-C02-01/PPQ) for their financial support in this study
Format: application/pdf
Citation: 011050
ISSN: 0960-8524
Document access: http://hdl.handle.net/10256/12674
Language: eng
Publisher: Elsevier
Collection: MICINN/PN 2007-2009/ CIT-310200-2007-90
MICINN/PN 2007-2009/ PET2006_0604
MEC/PN 2008-2010/DEX-560620-2008-149
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.biortech.2009.06.023
Articles publicats (D-EQATA)
Is part of: © Bioresource Technology, 2009, vol. 100, núm. 23, p. 5624-5632
Rights: Tots els drets reservats
Subject: Desnitrificació
Denitrification
Nitrificació
Nitrification
Bioreactors
Title: Long-term operation of a partial nitritation pilot plant treating leachate with extremely high ammonium concentration prior to an anammox process
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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