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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

AnSBBR APPLIED TO BIOMETHANE PRODUCTION FOR VINASSE TREATMENT: EFFECTS OF ORGANIC LOADING, FEED STRATEGY AND TEMPERATURE

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Autor(es):
Almeida, W. A. [1] ; Ratusznei, S. M. [2] ; Zaiat, M. [1] ; Rodrigues, J. A. D. [2]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Escola Engn Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Inst Maua Tecnol, Escola Engn Maua, Praca Maua 1, BR-09580900 Sao Caetano do Sul, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Brazilian Journal of Chemical Engineering; v. 34, n. 3, p. 759-773, JUL-SEP 2017.
Citações Web of Science: 4
Resumo

This study assessed the feasibility of an anaerobic sequencing batch and fed-batch biofilm reactor (AnSBBR) with mechanical stirring for vinasse treatment and biomethane production. The amount of liquid medium used was 3 L, and the treated volume was 1 L per cycle. The cycle time was 8 h, with feeding times of 10 min (batch mode) and 240 min (fed-batch mode). Methane productivity increased with the increase in organic load from 1.0 to 10.0 gCOD. L-1.d(-1). The maximum molar productivity and yield of methane were 123.4 molCH(4). m(-3).d(-1) and 13.8 mmolCH(4). gCOD(-1) (88% of the theoretical), respectively. These parameters were lower in fed-batch mode than in batch mode and were lower at 45 degrees C than at 30 degrees C due to biomass adaptation. In general, the values of the kinetic parameters increased with organic load and were similar for the batch and fed-batch modes. Therefore, the increase in organic load positively influenced the process by increased COD removal and lower volatile acids accumulation as the load increased. The batch mode performed better than did the fed-batch mode and 30 degrees C was more suitable than 45 degrees C to produce methane under the studied conditions. (AU)

Processo FAPESP: 13/23366-0 - Estudo do efeito da estratégia de alimentação e da temperatura na produção de metano em AnSBBR com agitação tratando vinhaça
Beneficiário:Weriskiney Araújo Almeida
Linha de fomento: Bolsas no Brasil - Mestrado