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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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Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
02/08/2001 |
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Data da última atualização: |
09/01/2009 |
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Autoria: |
MOREIRA, J. A. A.; STONE, L. F.; SILVEIRA, P. M. da; GUIMARÃES, C. M. |
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Título: |
Manejo da irrigação do milho no sistema plantio direto: tensão da água do solo. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2000. |
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Páginas: |
2 p. |
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Série: |
(Embrapa Arroz e Feijão. Pesquisa em foco, 36). |
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Idioma: |
Português |
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Conteúdo: |
Esse trabalho teve por objetivo determinar o melhor valor da tensão da água do solo para o reinício da irrigação do milho, cultivo em plantio direto. |
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Palavras-Chave: |
Direto; Sistema. |
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Thesagro: |
Cerrado; Irrigação; Manejo; Milho; Plantio; Solo. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAF/17251/1/pqfoco36.pdf
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Marc: |
LEADER 00872nam a2200265 a 4500
001 1208359
005 2009-01-09
008 2000 bl uuuu u0uu1 u #d
100 1 $aMOREIRA, J. A. A.
245 $aManejo da irrigação do milho no sistema plantio direto$btensão da água do solo.
260 $aSanto Antônio de Goiás: Embrapa Arroz e Feijão$c2000
300 $a2 p.
490 $a(Embrapa Arroz e Feijão. Pesquisa em foco, 36).
520 $aEsse trabalho teve por objetivo determinar o melhor valor da tensão da água do solo para o reinício da irrigação do milho, cultivo em plantio direto.
650 $aCerrado
650 $aIrrigação
650 $aManejo
650 $aMilho
650 $aPlantio
650 $aSolo
653 $aDireto
653 $aSistema
700 1 $aSTONE, L. F.
700 1 $aSILVEIRA, P. M. da
700 1 $aGUIMARÃES, C. M.
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Embrapa Arroz e Feijão (CNPAF) |
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