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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
18/10/2021 |
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Data da última atualização: |
18/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PRÁ, M. C. de; BONASSA, G.; BORTOLI, M.; SOARES, H. M.; KUNZ, A. |
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Afiliação: |
MARINA CELANT DE PRÁ, UTFPR/Dois Vizinhos; GABRIELA BONASSA, UNIOESTE/Cascavel; MARCELO BORTOLI, UTFPR/Dois Vizinhos; HUGO MOREIRA SOARES, UFSC; AIRTON KUNZ, CNPSA. |
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Título: |
Novel one-stage reactor configuration for deammonification process: hydrodynamic evaluation and fast start-up of Nitrammox® reactor. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biochemical Engineering Journal, v. 171, n. 108005, 2021. |
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DOI: |
https://doi.org/10.1016/j.bej.2021.108005 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: This study brings an alternative to treat high ammonium-containing wastewater, presenting a new approach exclusively developed to operate one-stage deammonification process called NITRAMMOX®. The reactor was developed to reduce costs and simplify the operation, promising to be favorable to ANAMMOX and AOB. The correlation between reactor configuration and process efficiency were evaluated using the hydrodynamic characterization, flow anomalies identification, oxygen mass transfer efficiency and reactor start-up. NITRAMMOX® quickly acclimated bacteria after inoculation, presenting a 12-day start-up using 6 h-θ, 25 ◦C. The hydrodynamic results obtained at different superficial gas velocity (0.40 to 31.8 cm min− 1) showed a quick oxygen mass transfer and movement, due to the adequate geometric proportion and reactor design. Deviations from ideality do not compromise the ability of the tracer distribution throughout the NITRAMMOX®, indicating great fluid longitudinal dispersion with no dead zones (θr≥θt), no short circuits (Ψ≤0.3) and good hydraulic efficiency (λ > 0.75), approaching the behavior of a complete mixing reactor. The treatment concept by NITRAMMOX® was shown to be suitable for biomass retention and to establish and favor ANAMMOX bacteria, which can achieve high nitrogen removal rates. The reactor can be applied as a new technology for field application in wastewater treatment systems with low C/N ratio. |
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Palavras-Chave: |
ANAMMOX; Biological nitrogen removal; Caracterização hidrodinâmica; Hydrodynamic characterization; New reactor configurati; Novas configurações de reator; Partial nitrification; Remoção de nitrogênio biológico. |
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Thesagro: |
Nitrificação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02483naa a2200289 a 4500
001 2135396
005 2021-10-18
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.bej.2021.108005$2DOI
100 1 $aPRÁ, M. C. de
245 $aNovel one-stage reactor configuration for deammonification process$bhydrodynamic evaluation and fast start-up of Nitrammox® reactor.$h[electronic resource]
260 $c2021
520 $aAbstract: This study brings an alternative to treat high ammonium-containing wastewater, presenting a new approach exclusively developed to operate one-stage deammonification process called NITRAMMOX®. The reactor was developed to reduce costs and simplify the operation, promising to be favorable to ANAMMOX and AOB. The correlation between reactor configuration and process efficiency were evaluated using the hydrodynamic characterization, flow anomalies identification, oxygen mass transfer efficiency and reactor start-up. NITRAMMOX® quickly acclimated bacteria after inoculation, presenting a 12-day start-up using 6 h-θ, 25 ◦C. The hydrodynamic results obtained at different superficial gas velocity (0.40 to 31.8 cm min− 1) showed a quick oxygen mass transfer and movement, due to the adequate geometric proportion and reactor design. Deviations from ideality do not compromise the ability of the tracer distribution throughout the NITRAMMOX®, indicating great fluid longitudinal dispersion with no dead zones (θr≥θt), no short circuits (Ψ≤0.3) and good hydraulic efficiency (λ > 0.75), approaching the behavior of a complete mixing reactor. The treatment concept by NITRAMMOX® was shown to be suitable for biomass retention and to establish and favor ANAMMOX bacteria, which can achieve high nitrogen removal rates. The reactor can be applied as a new technology for field application in wastewater treatment systems with low C/N ratio.
650 $aNitrificação
653 $aANAMMOX
653 $aBiological nitrogen removal
653 $aCaracterização hidrodinâmica
653 $aHydrodynamic characterization
653 $aNew reactor configurati
653 $aNovas configurações de reator
653 $aPartial nitrification
653 $aRemoção de nitrogênio biológico
700 1 $aBONASSA, G.
700 1 $aBORTOLI, M.
700 1 $aSOARES, H. M.
700 1 $aKUNZ, A.
773 $tBiochemical Engineering Journal$gv. 171, n. 108005, 2021.
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| 2. |  | TULMANN NETO, G.; MENTEN, J. O. M.; ANDO, A.; POMPEU JUNIOR, J.; FIGUEIREDO, J. O.; CERAVOLO, L.; NAMEKATA, T.; ROSSI, A. C. Indução e seleção de mutantes em laranja 'pêra' mediante o emprego de radiação gama. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 31, n. 10, p. 743-752, out. 1996. Título em inglês: Mutant selection and induction in 'pêra' sweet orange using gamma-rays.| Biblioteca(s): Embrapa Unidades Centrais. |
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