Design study of an AnSBBR for hydrogen production by co-digestion of whey with glycerin: Interaction effects of organic load, cycle time and feed strategy

Autor(es)

Lovato, G. ; Albanez, R. ; Stracieri, L. ; Zaiat, M. ; Ratusznei, S. M. ; Rodrigues, J. A. D.

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 42, n. 15, p. 9567-9576, APR 13 2017.
• Citações Web of Science: 3

Resumo

An anaerobic sequencing batch biofilm reactor (AnSBBR) treating a mixture of dairy industry wastewater and biodiesel production wastewater (co-digestion of whey with glycerin) was applied to hydrogen production. The influence of fed-batch and batch mode, cycle time and interactions effects between influent concentration and cycle time (2, 3 and 4 h) over the organic loading rate were assessed in order to obtain a sensitivity analysis for important operational variables to the reactor. It was possible to find an optimal cycle time of 3 h with an influent concentration of 7000 mgCOD L-1 (molar productivity 129.0 molH(2) m(-3) d(-1) and yield 5.4 molH(2) kgCOD(-1)). Reactor operation in fed-batch mode allowed higher hydrogen production rates. Increasing the influent concentration (with a constant cycle time) was better for the hydrogen production process than decreasing the cycle length (with a constant influent concentration), which means that these two parameters have different weights in the organic loading rate. The best operational conditions produce hydrogen via acetic, butyric and valeric acids similarly. The system is able to produce 1.3 kJ per gram of COD applied. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/03109-1 - Produção de biohidrogênio pela codigestão de soro e glicerina: influência da temperatura, carga orgânica, concentração afluente e tempo de ciclo
• Beneficiário: Lucas Stracieri
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 14/07692-8 - Produção de biohidrogênio e biometano em AnSBBR a partir da co-digestão de glicerina e soro de leite
• Beneficiário: Giovanna Lovato
• Modalidade de apoio: Bolsas no Brasil - Doutorado