AVALIAÇÃO DA PRODUÇÃO DE HIDROGÊNIO A PARTIR DA CODIGESTÃO ANAERÓBIA DE RESÍDUOS SÓLIDOS ORGÂNICOS E GLICEROL RESIDUAL DA PRODUÇÃO DE BIODIESEL

• Main Authors: Fabrícia M. S. Silva, Luciano B. Oliveira, Claudio F. Mahler, João P. Bassin
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química
• Series: Química Nova
• Subjects: hydrogen; co-digestion; organic solid waste; glycerol
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422017000500523&lng=en&tlng=en

The anaerobic co-digestion of solid organic waste with residual glycerol from biodiesel production (1% v v-1) for hydrogen production was investigated by means of the Biochemical Hydrogen Potential (BHP). The specific hydrogen production from co-digestion with and without glycerol corresponded to 140 mL H2 g VS-1 and 87,3 mL H2 g VS-1 removed, respectively, while the maximum specific H2 production rate was found to be 14.26 e 8.57 mL H2 g VS h-1, respectively. Co-digestion of solid organic waste with glycerol enhanced hydrogen production and reduced the fermentation lag phase in around 4 hours. The dominant metabolite product of the anaerobic fermentation was butyric acid. The results revealed that co-digestion of organic water and glycerol is promising and can potentially be used to maximize energy production while contributing to the management and treatment of these wastes.