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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
12/12/2016 |
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Data da última atualização: |
12/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHINI, A.; KUNZ, A.; VIANCELLI, A.; SCUSSIATO, L. A.; DIAS, J. R.; JACINTO, I. C. |
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Afiliação: |
ANGELICA CHINI, UNIOESTE; AIRTON KUNZ, CNPSA; ALINE VIANCELLI, UNC/Concórdia; LUCAS ANTUNES SCUSSIATO, UNIOESTE; JÉSSICA ROSA DIAS, UNC/Concórdia; ISMAEL CHIMANKO JACINTO, UNC/Concórdia. |
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Título: |
Recirculation and aeration effects on deammonification activity. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 227, n.2, 2016. |
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DOI: |
10.1007/s11270-016-2765-7. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Deammonification process has been studied as an alternative technology for nitrogen removal. This process consists of the association between nitrifying and anammox bacteria, in which the process success is related to aeration, recirculation, and reactor configuration. Considering this, the present study aimed to evaluate the performance of an expanded granular sludge bed (EGSB) reactor on nitrogen removal by deammonification process. Established in a single reactor, it considered the effects of recirculation rate and variation of dissolved oxygen (DO) concentration in microbial community and nitrogen removal efficiency. Thus, two independent tests were conducted: (T1) high recirculation flow rate, performed at 43 L d−1 (Qr/ Qin=16), aeration of 30 mLair min−1 L−1 reactor, and conducted during 16 days; (T2) low recirculation flow rate performed at 6.7 L d−1 (Qr/Qin = 2.5), operated for 55 days, divided into three aeration phases: (T2a) 30 mLair min−1 L−1 reactor, (T2b) 20 mLair min−1 L−1 reactor, and (T2c) 30 mLair min−1 L−1 reactor. Results showed that in T1 the high recirculation rate favored nitrifying bacteria prevalence, intensified by reactor turbulence and anammox granules disintegration, changing activity from deammonification to a nitrification process. In addition, T1 reached up to 350 ± 100 mgN L−1 d−1 nitrogen removal rate (NRR). For T2, at low recirculation rate, deammonification process was successfully established with a NRR of 490 mgN L−1 d−1 at Qr/ Qin= 2.5 and air flow rate of 20 mLair min−1 L−1 reactor MenosAbstract: Deammonification process has been studied as an alternative technology for nitrogen removal. This process consists of the association between nitrifying and anammox bacteria, in which the process success is related to aeration, recirculation, and reactor configuration. Considering this, the present study aimed to evaluate the performance of an expanded granular sludge bed (EGSB) reactor on nitrogen removal by deammonification process. Established in a single reactor, it considered the effects of recirculation rate and variation of dissolved oxygen (DO) concentration in microbial community and nitrogen removal efficiency. Thus, two independent tests were conducted: (T1) high recirculation flow rate, performed at 43 L d−1 (Qr/ Qin=16), aeration of 30 mLair min−1 L−1 reactor, and conducted during 16 days; (T2) low recirculation flow rate performed at 6.7 L d−1 (Qr/Qin = 2.5), operated for 55 days, divided into three aeration phases: (T2a) 30 mLair min−1 L−1 reactor, (T2b) 20 mLair min−1 L−1 reactor, and (T2c) 30 mLair min−1 L−1 reactor. Results showed that in T1 the high recirculation rate favored nitrifying bacteria prevalence, intensified by reactor turbulence and anammox granules disintegration, changing activity from deammonification to a nitrification process. In addition, T1 reached up to 350 ± 100 mgN L−1 d−1 nitrogen removal rate (NRR). For T2, at low recirculation rate, deammonification p... Mostrar Tudo |
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Palavras-Chave: |
Oxidação anaeróbica de amônio. |
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Thesagro: |
Dejeto. |
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Thesaurus Nal: |
Anaerobic ammonium oxidation; Waste treatment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02354naa a2200241 a 4500
001 2058419
005 2016-12-12
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s11270-016-2765-7.$2DOI
100 1 $aCHINI, A.
245 $aRecirculation and aeration effects on deammonification activity.$h[electronic resource]
260 $c2016
520 $aAbstract: Deammonification process has been studied as an alternative technology for nitrogen removal. This process consists of the association between nitrifying and anammox bacteria, in which the process success is related to aeration, recirculation, and reactor configuration. Considering this, the present study aimed to evaluate the performance of an expanded granular sludge bed (EGSB) reactor on nitrogen removal by deammonification process. Established in a single reactor, it considered the effects of recirculation rate and variation of dissolved oxygen (DO) concentration in microbial community and nitrogen removal efficiency. Thus, two independent tests were conducted: (T1) high recirculation flow rate, performed at 43 L d−1 (Qr/ Qin=16), aeration of 30 mLair min−1 L−1 reactor, and conducted during 16 days; (T2) low recirculation flow rate performed at 6.7 L d−1 (Qr/Qin = 2.5), operated for 55 days, divided into three aeration phases: (T2a) 30 mLair min−1 L−1 reactor, (T2b) 20 mLair min−1 L−1 reactor, and (T2c) 30 mLair min−1 L−1 reactor. Results showed that in T1 the high recirculation rate favored nitrifying bacteria prevalence, intensified by reactor turbulence and anammox granules disintegration, changing activity from deammonification to a nitrification process. In addition, T1 reached up to 350 ± 100 mgN L−1 d−1 nitrogen removal rate (NRR). For T2, at low recirculation rate, deammonification process was successfully established with a NRR of 490 mgN L−1 d−1 at Qr/ Qin= 2.5 and air flow rate of 20 mLair min−1 L−1 reactor
650 $aAnaerobic ammonium oxidation
650 $aWaste treatment
650 $aDejeto
653 $aOxidação anaeróbica de amônio
700 1 $aKUNZ, A.
700 1 $aVIANCELLI, A.
700 1 $aSCUSSIATO, L. A.
700 1 $aDIAS, J. R.
700 1 $aJACINTO, I. C.
773 $tWater, Air and Soil Pollution$gv. 227, n.2, 2016.
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| 6. |  | MARQUES, D. V.; VEDOVOTO, G. L.; AVILA, A. F. D.; SOUZA, M. O. de. Avaliação dos impactos sociais de tecnologias agropecuárias: geração de empregos. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 46., 2008, Rio Branco, AC. [Anais...]. Rio Branco, AC: SOBER, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| 10. | | ARAUJO, M. de; OLIVEIRA, F. T. G. de; MARRA, R.; SOUZA, M. O. de. Sugarcane: the evolution of technological thinking in agriculture. In: Revista de Política Agrícola, Brasília, DF, ano 19, n. 4, p. 65-77, Out./Nov./Dez. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
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| 15. | | CAVALCANTI FILHO, P. G.; SOUZA, D. T. de; MARTINHO, P. R. R.; SOUZA, M. O. de. Evolução estrutural na agropecuária da Amazônia brasileira entre 2006 e 2017. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 61.; 2021, Piracicaba, SP. Anais... Piracicaba, SP: Esalq/USP, 2023. 20 p. Sober 2023.| Tipo: Artigo em Anais de Congresso |
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| 16. | | SOUZA, G. da S. e; SOUZA, M. O. de; MARQUES, D. V.; GAZZOLA, R.; MARRA, R. Previsões para o mercado de carnes. In: Revista de Economia e Sociologia Rural. Piracicaba, SP, vol. 49, nº 02, p. 473-492, abr/jun 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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