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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
07/06/2011 |
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Data da última atualização: |
07/06/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Circulação/Nível: |
-- - -- |
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Autoria: |
GARBOSSA, L. H. P.; RODRIGUEZ, J. A.; LAPA, K. R.; FORESTI, E. |
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Afiliação: |
Epagri |
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Título: |
A novel two-module integrated aerobic-anaerobic bioreactor for denitrification using H2S from biogas. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: NUTRIENT MANAGEMENT IN WASTEWATER TREATMENT PROCESSES AND RECYCLE STREAMS, ., 2005, Cracóvia. [Proceedings...]. London: IWA, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The biogas produced in an UASB reactor treating domestic sewage was utilized for the evaluation of its effectiveness as alternative source of electron donor for denitrification. The experiment was carried out in a posttreatment unit consisting of a bench scale horizontal flow aerobic-anaerobic immobilized reactor fed with the UASB reactor effluent and supplied with air (for nitrification) and biogas (for denitrification) in separate modules aiming the removal of nitrogen. The experiment lasted five months. Complete denitrification was obtained and the results permit to afirm that H2S instead of CH4 was preferable used as electron donor. Although the reasons for this preference are not clear, some hypotheses are presented. More studies should be developed to provide a better understanding of the mechanisms involved in the use of H2S and elemental sulfur as electron donor for denitrification. The results obtained permit to consider the novel system configuration a promising reactor alternative for biological nitrogen removal and also for the treatment of the biogas produced in anaerobic reactors utilized for domestic sewage treatment. |
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Palavras-Chave: |
Biogas; Denitrification; Nitrogen removal; Sulfur; Wastewater. |
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Categoria do assunto: |
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Marc: |
LEADER 01741naa a2200181 a 4500
001 1077247
005 2011-06-07
008 2005 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aA novel two-module integrated aerobic-anaerobic bioreactor for denitrification using H2S from biogas.
260 $c2005
520 $aThe biogas produced in an UASB reactor treating domestic sewage was utilized for the evaluation of its effectiveness as alternative source of electron donor for denitrification. The experiment was carried out in a posttreatment unit consisting of a bench scale horizontal flow aerobic-anaerobic immobilized reactor fed with the UASB reactor effluent and supplied with air (for nitrification) and biogas (for denitrification) in separate modules aiming the removal of nitrogen. The experiment lasted five months. Complete denitrification was obtained and the results permit to afirm that H2S instead of CH4 was preferable used as electron donor. Although the reasons for this preference are not clear, some hypotheses are presented. More studies should be developed to provide a better understanding of the mechanisms involved in the use of H2S and elemental sulfur as electron donor for denitrification. The results obtained permit to consider the novel system configuration a promising reactor alternative for biological nitrogen removal and also for the treatment of the biogas produced in anaerobic reactors utilized for domestic sewage treatment.
653 $aBiogas
653 $aDenitrification
653 $aNitrogen removal
653 $aSulfur
653 $aWastewater
773 $tIn: NUTRIENT MANAGEMENT IN WASTEWATER TREATMENT PROCESSES AND RECYCLE STREAMS, ., 2005, Cracóvia. [Proceedings...]. London: IWA, 2005.
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