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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: |
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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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
03/03/2008 |
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Data da última atualização: |
19/01/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - C |
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Autoria: |
TOMICH, T. R.; TOMICH, R. G. P.; GONÇALVES, L. C.; BORGES, I.; RODRIGUES, J. A. S. |
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Afiliação: |
Tierry Ribeiro Tomich, Embrapa Pantanal; Renata Graça Pinto Tomich, UFMG; L. C. Gonçalves, UFMG; I. Borges, UFMG; José Avelino Santos Rodrigues, Embrapa Milho e Sorgo. |
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Título: |
Valor nutricional de híbridos de sorgo com capim-sudão em comparação ao de outros volumosos utilizados no período de baixa disponibilidade das pastagens = Nutritional value of sorghum-sudangrass hybrids compared to other roughage sources used in the period of low availability of pastures. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Arq. Bras. Med. Vet. Zootec., v.58, n.6, p. 1249-1252, 2006. |
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Idioma: |
Português |
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Notas: |
Meta 2007. |
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Conteúdo: |
Entre as principais estratégias utilizadas para manter o adequado suprimento de volumosos para os rebanhos durante o período anual de seca, quando ocorre escassez das pastagens, destacam-se o uso de pastagens diferidas, vedadas no final da estação de crescimento; as reservas de forragem manejadas em regime de corte, como as capineiras, as lavouras de cana-de-açúcar e o emprego de volumosos conservados, pela fenação ou pela ensilagem. |
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Palavras-Chave: |
Composição bromatológica; Cromatological composition; Ruminant; Ruminantes; Sorghum-sudangrass hybrid; Sorgo-capim-sudão. |
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Thesagro: |
Digestibilidade. |
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Thesaurus NAL: |
digestibility. |
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Categoria do assunto: |
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URL: |
https://www.scielo.br/pdf/abmvz/v58n6/43.pdf
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Marc: |
LEADER 01458naa a2200277 a 4500
001 1786531
005 2010-01-19
008 2006 bl --- 0-- u #d
100 1 $aTOMICH, T. R.
245 $aValor nutricional de híbridos de sorgo com capim-sudão em comparação ao de outros volumosos utilizados no período de baixa disponibilidade das pastagens = Nutritional value of sorghum-sudangrass hybrids compared to other roughage sources used in the period of low availability of pastures.
260 $c2006
500 $aMeta 2007.
520 $aEntre as principais estratégias utilizadas para manter o adequado suprimento de volumosos para os rebanhos durante o período anual de seca, quando ocorre escassez das pastagens, destacam-se o uso de pastagens diferidas, vedadas no final da estação de crescimento; as reservas de forragem manejadas em regime de corte, como as capineiras, as lavouras de cana-de-açúcar e o emprego de volumosos conservados, pela fenação ou pela ensilagem.
650 $adigestibility
650 $aDigestibilidade
653 $aComposição bromatológica
653 $aCromatological composition
653 $aRuminant
653 $aRuminantes
653 $aSorghum-sudangrass hybrid
653 $aSorgo-capim-sudão
700 1 $aTOMICH, R. G. P.
700 1 $aGONÇALVES, L. C.
700 1 $aBORGES, I.
700 1 $aRODRIGUES, J. A. S.
773 $tArq. Bras. Med. Vet. Zootec.$gv.58, n.6, p. 1249-1252, 2006.
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Embrapa Pantanal (CPAP) |
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