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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
30/09/1998 |
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Data da última atualização: |
18/10/2007 |
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Autoria: |
FURTADO, A. A.; ALBUQUERQUE, R. T.; LEITE, S. G. F.; PECANHA, R. P. |
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Título: |
Evaluation of hybrid fluidized bed - air lift biological filter for the treatment of ammoniacal effluents. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON MICROORGANISMS IN ACTIVATED SLUDGE AND BIOFILM PROCESSES, 2., 1997, Berkeley. [S.l.: s.n., s.d.] Proceedings. p.461-464. |
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Idioma: |
Inglês |
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Conteúdo: |
Biological filters make use of relatively thin layers of microorganisms adhered to a suitable support, over which the effluent streasm along. It is particularly indicated for no-flocculating microorganisms, like nitrifying bacteria, easily entrained from processes using suspendede cells. The purpose of this work was to evaluate preliminary a hybrid fluidized bed - air lift system, in treating a petroleum refinery effluent, originally containing about 30 mg/L of residual ammoniacal-N. two types of supporting materials were tested: activated carbon particles and polystyrene beads, both with mean size 2mm. The reactor had a colume of 5L and was provided with an internal draft tube. The associated mean residence time was 10h. The process performance was evaluated by measurint the concentrations of ammoniacal-N, nitrite-N and DO, in accordance with procedures recommended by the standard methods. The biolfilm development was monitores via culture isolation on solid medium and photography under electronic and/or optical microscope. Activated carbon particles have shown the best results, leading to a removal of ammonia to an extent around 85%. The best performance of activated carbon as compared to polystyrene, was clearly related to an stronger attachment and homogeneity of the biofilm covering the relatively rougher surface of the coal particles. |
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Palavras-Chave: |
Air-lift reactor; Carvao ativado; Reator air-lift. |
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Thesagro: |
Nitrificação. |
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Thesaurus Nal: |
activated carbon; nitrification. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02134naa a2200229 a 4500
001 1410333
005 2007-10-18
008 1997 bl uuuu u00u1 u #d
100 1 $aFURTADO, A. A.
245 $aEvaluation of hybrid fluidized bed - air lift biological filter for the treatment of ammoniacal effluents.
260 $c1997
520 $aBiological filters make use of relatively thin layers of microorganisms adhered to a suitable support, over which the effluent streasm along. It is particularly indicated for no-flocculating microorganisms, like nitrifying bacteria, easily entrained from processes using suspendede cells. The purpose of this work was to evaluate preliminary a hybrid fluidized bed - air lift system, in treating a petroleum refinery effluent, originally containing about 30 mg/L of residual ammoniacal-N. two types of supporting materials were tested: activated carbon particles and polystyrene beads, both with mean size 2mm. The reactor had a colume of 5L and was provided with an internal draft tube. The associated mean residence time was 10h. The process performance was evaluated by measurint the concentrations of ammoniacal-N, nitrite-N and DO, in accordance with procedures recommended by the standard methods. The biolfilm development was monitores via culture isolation on solid medium and photography under electronic and/or optical microscope. Activated carbon particles have shown the best results, leading to a removal of ammonia to an extent around 85%. The best performance of activated carbon as compared to polystyrene, was clearly related to an stronger attachment and homogeneity of the biofilm covering the relatively rougher surface of the coal particles.
650 $aactivated carbon
650 $anitrification
650 $aNitrificação
653 $aAir-lift reactor
653 $aCarvao ativado
653 $aReator air-lift
700 1 $aALBUQUERQUE, R. T.
700 1 $aLEITE, S. G. F.
700 1 $aPECANHA, R. P.
773 $tIn: INTERNATIONAL CONFERENCE ON MICROORGANISMS IN ACTIVATED SLUDGE AND BIOFILM PROCESSES, 2., 1997, Berkeley. [S.l.: s.n., s.d.] Proceedings. p.461-464.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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| Registros recuperados : 7 | |
| 5. |  | ROSA, M. F.; ALBUQUERQUE, R. T.; LEITE, S. G. F.; PECANHA, R. P.; MEDRONHO, R. A.; FURTADO, A. A. L. Nitrificacao de efluentes: caracterizacao microbiologica. In: SIMPOSIO NACIONAL DE FERMENTACOES, 12., 1998, Uberlandia, MG. Anais... Urbelandia: UFU/ABEQ/SBM, 1998. Nao paginado.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 6. | | FURTADO, A. A. L.; ROSA, M. F.; ALBUQUERQUE, R. T.; LEITE, S. G. F.; PECANHA, R. P.; MEDRONHO, R. A. Nitrification of effluents: microbiological characterization. Brazilian Journal of Microbiology, Sao Paulo, v.31, p.23-27, 2000. Suplemento.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 7. | | FURTADO, A. A. L.; ALBUQUERQUE, R. T.; FERNANDES, J. M. O.; LEITE, S. G. F.; PECANHA, R. P. Removal of nitrogenous compounds from petroleum refinery effluent with an air lift bioreactor. In: INTERNATIONAL IGT SYMPOSIUM ON GAS, OIL AND ENVIRONMENTAL BIOTECHNOLOGY AND SITE REMEDIATION TECHNOLOGIES, 9., 1996, Colorado Springs, Estados Unidos. Proceedings... Colorado: Institute of Gas Technology, 1996. 8p.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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