Influence of seed sludge and pretreatment method on hydrogen production in packed-bed anaerobic reactors

Autor(es)

Penteado, Eduardo Dellosso ^[1] ; Lazaro, Carolina Zampol ^[1] ; Sakamoto, Isabel Kimiko ^[1] ; Zaiat, Marcelo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, EESC, LPB, Ctr Pesquisa Desenvolvimento & Inovacao Engn Ambi, BR-13563120 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 38, n. 14, p. 6137-6145, MAY 10 2013.
• Citações Web of Science: 82

Resumo

Several studies have reported on the effects of inoculums source and pretreatment on biological hydrogen production. However, there have been few studies on continuous reactors. This paper investigated the influence of different seed sludge sources and pretreatment methods on biohydrogen production in up-flow anaerobic fixed-bed reactors fed with sucrose. The following inoculum sources were included in the study: (1) anaerobic sludge from an up-flow anaerobic sludge blanket (UASB) reactor used to treat poultry slaughterhouse wastewater (Sl), (2) anaerobic sludge from a UASB reactor used to treat swine wastewater (Sw) and (3) autofermentation (A). Heat (He) and acid (Ac) shock were used to increase hydrogen production and suppress hydrogen consumption. The average hydrogen yields (HY) in the experiment were 2.1 (A), 2.0 (SlHe), 2.0 (SlAc), 1.0 (Sl), 1.0 (SwAc), 0.7 (SwHe) and 0.7 (Sw) mol H-2 mol(-1) sucrose. Although heat shock produced the maximum HY value (SlHe), acid pretreatment (SlAc) resulted in more stable hydrogen production with the largest average value, which could be an advantage of using pH shock. The autofermentation process presented HY values similar to those produced with SlAc and SlHe, making it a suitable seed sludge for biohydrogen production because pretreatment was not required. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 09/15984-0 - Produção de bioenergia no tratamento de águas residuárias e adequação ambiental dos efluentes e resíduos gerados
• Beneficiário: Marcelo Zaiat
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 09/00135-8 - Avaliação da produção de hidrogênio e caracterização microbiana de reatores anaeróbios de batelada alimentados com vinhaça
• Beneficiário: Carolina Zampol Lazaro
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/03927-0 - Influência da origem do inóculo na produção biológica do hidrogênio a partir de águas residuárias em reatores anaeróbios
• Beneficiário: Eduardo Dellosso Penteado
• Modalidade de apoio: Bolsas no Brasil - Mestrado