Enrichment of Anammox biomass from municipal activated sludge: experimental and modelling results

Dapena-Mora, Ana; Hulle, Stijn Van; Campos, José Luis; Méndez, R.; Vanrolleghem, Peter A.; Jetten, Mike S. M.

doi:10.1002/jctb.1148

Cited by 164 publications

(75 citation statements)

References 21 publications

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“…3C). The stoichiometric and kinetic parameter values for X AN calibrated in this study were generally comparable to those reported in the literature (Dapena-Mora et al, 2004b;Hao et al, 2002b;Strous et al, 1999b;Van de Graaf et al, 1996). The yield coefficient for X AN growth and the decay rate coefficient of X AN were estimated as 0.164 g COD g À1 N and 0.00016 h À1 , respectively.…”

Section: Model Calibrationmentioning

confidence: 88%

“…It should be noted that, as a substrate, nitrite could also inhibit the ANAMMOX process (Dapena-Mora et al, 2004b;Strous et al, 1999a). However, the measured nitrite concentrations in the reactor were too low to cause an inhibitory effect.…”

Section: Biological Reactionsmentioning

confidence: 95%

“…No biodegradable substrate was present in the influent, but a value of 2 mg L À1 of chemical oxygen demand (COD) in the influent was assumed to account for any biodegradable substrate present in the water used for medium preparation, and the biodegradable substrate originating from EDTA in the trace element solution (Dapena-Mora et al, 2004b). The readily degradable substrates in the reactor were also produced through the hydrolysis of X S .…”

Section: Biological Reactionsmentioning

confidence: 99%

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Modeling a granule‐based anaerobic ammonium oxidizing (ANAMMOX) process

Chen

Liu

et al. 2009

Biotech & Bioengineering

101

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A mathematical model was developed to describe the anaerobic ammonium oxidation (ANAMMOX) process in a granular upflow anaerobic sludge blanket (UASB) reactor. ANAMMOX granules were cultivated in the UASB reactor by seeding aerobic granules. The granule-based reactor had a great N-loading resistant capacity. The model simulation results on the 1-year reactor performance matched the experimental data well. The yield coefficient for the growth and the decay rate coefficient of the ANAMMOX granules were estimated to be 0.164 g COD g(-1) N and 0.00016 h(-1), respectively. With this model, the effects of process parameters on the reactor performance were evaluated. Results showed that the optimum granule diameter for the maximum N-removal should be between 1.0 and 1.3 mm and that the optimum N loading rate should be 0.8 kg N m(-3) d(-1). In addition, the substrate micro-profiles in the ANAMMOX granules were measured with a microelectrode to explore the diffusion dynamics within the granules, and the measured profiles matched the predicted results well.

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Section: Model Calibrationmentioning

confidence: 88%

Section: Biological Reactionsmentioning

confidence: 95%

Section: Biological Reactionsmentioning

confidence: 99%

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Modeling a granule‐based anaerobic ammonium oxidizing (ANAMMOX) process

Chen

Liu

et al. 2009

Biotech & Bioengineering

101

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“…Active Anammox microorganisms have been detected from several sources, such as sludge systems from wastewater treatment (DAPENA-MORA et al, 2004), slaughterhouse effluents (REGINATTO et al, 2005), freshwater environments (SCHUBERT et al, 2006), marine sediments (TAL et al, 2005) among others.…”

Section: Introductionmentioning

confidence: 99%

Establishment of anammox process in sludge samples collected from swine wastewater treatment system

et al. 2011

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ABSTRACT:The high load of nitrogen present in swine wastewater is one of the biggest management challenges of the activity. The Anammox process emerges as a good alternative for biological removal of nitrogen. This study aims to acclimate sludge collected from swine effluent treatment systems to establish the Anammox process. Two sludge samples were collected at Embrapa Swine and Poultry, Concordia -SC, Brazil, one from the bottom of an inactive anaerobic pond (inoculum A) and another from an aeration tank (inoculum B). Both were acclimated until the depletion of NO 3 -N, being subsequently inoculated in two reactors (Reactor A -Inoculum A and Reactor B -Inoculum B). The Reactor A showed activity after 110 days of operation, while the Reactor B needed 170 days. The difference in the start-up time could be explained by the different environmental conditions to which each sludge was submitted. FISH and PCR analyses confirmed the presence of microorganisms with Anammox activity, demonstrating that the sludge of swine wastewater treatment systems is a good source of inoculum for the development of the Anammox process.KEYWORDS: nitrogen removal, swine wastewater, Anammox process. ESTABELECIMENTO DO PROCESSO ANAMMOX A PARTIR DE LODO DE SISTEMA DE TRATAMENTO DE EFLUENTE DA SUINOCULTURARESUMO: A elevada carga de nitrogênio presente em efluentes da suinocultura é um dos maiores desafios de manejo da atividade. O processo Anammox surge como boa alternativa para a remoção biológica desse nutriente. Este trabalho teve como objetivo aclimatar diferentes amostras de lodos de sistemas de tratamento de efluentes da suinocultura com vistas ao estabelecimento do processo Anammox. Dois inóculos foram coletados na Embrapa Suínos e Aves, Concórdia -SC, um dos quais no fundo de uma lagoa anaeróbia inativa (Inóculo A) e o outro, em um tanque de aeração (Inóculo B). Ambos foram aclimatados até cessar o consumo de N-NO 3 -e, posteriormente, inoculados em dois reatores (Reator A -Inóculo A e Reator B -Inóculo B). O Reator A apresentou atividade, após aproximadamente 110 dias de operação, enquanto o Reator B precisou de aproximadamente 170 dias, diferença de tempo de partida que pode ser explicada pelas diferentes condições ambientais a que cada lodo estava submetido. As análises de FISH e PCR comprovaram a presença de microrganismos com atividade Anammox, mostrando que lodos de sistemas de tratamento de efluentes da suinocultura podem ser boa fonte de inóculo para o desenvolvimento do processo Anammox. PALAVRAS-CHAVE: remoção de nitrogênio, dejetos de suínos, anammox.Establishment of anammox process in sludge samples collected from swine wastewater treatment system Eng.

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“…Recentemente, vários trabalhos têm reportado a detecção e identificação de bactérias Anammox em diferentes ambientes (nas diversas partes do mundo), tais como em lodos oriundos de sistemas de tratamento de águas residuárias (SCHMID et al, 2003;DAPENA-MORA et al, 2004), em sedimentos marinhos (DALSGAARD; THAMDRUP, 2002;TAL;WATTS;SCHREIER, 2005), em ambientes de água doce (JETTEN et al, 2003;SCHUBERT et al, 2006) e em águas salobras (SANCHEZ-MELSIÓ et al, 2009 …”

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Enriquecimento de bactérias anaeróbias oxidadoras de amônia - anammox

Araújo

Campos

Correa

et al. 2010

Eng. Sanit. Ambient.

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Anaerobic ammonium-oxidizing (Anammox) bacteria were enriched from sludge collected at a conventional activated sludge system treating domestic wastewater of Belo Horizonte(MG), Brazil, employing a sequencing batch reactor (SBR). After three months of cultivation, Anammox activity was detected in the system by the consumption of stoichiometric amounts of NO 2 -and NH 4 + . Fluorescent in situ hybridization (FISH) results revealed the presence of Anammox bacteria (probably Candidatus Brocadia anammoxidans) and showed that they accounted for 53% of the total bacterial population (after 6 months of cultivation).The reactor performance during the seven months of operation showed a near perfect removal of nitrite, based on the influent NO 2 --N concentration of 61-95 mg/L. The maximum ammonia removal efficiency was 95% from the influent N-NH 4 + concentration of 55-82 mg/L.

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Enrichment of Anammox biomass from municipal activated sludge: experimental and modelling results

Cited by 164 publications

References 21 publications

Modeling a granule‐based anaerobic ammonium oxidizing (ANAMMOX) process

Modeling a granule‐based anaerobic ammonium oxidizing (ANAMMOX) process

Establishment of anammox process in sludge samples collected from swine wastewater treatment system

Enriquecimento de bactérias anaeróbias oxidadoras de amônia - anammox

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