Passos, FabianaCordeiro, Paulo Henrique de MirandaBaeta, Bruno Eduardo LoboAquino, Sergio Francisco deElvira, Sara Isabel Perez2018-05-172018-05-172018PASSOS, F. et al. Anaerobic co-digestion of coffee husks and microalgal biomass after thermal hydrolysis. Bioresource Technology, v. 253, p. 49-54, 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0960852417322162>. Acesso em: 05 abr. 2018.09608524http://www.repositorio.ufop.br/handle/123456789/9952Residual coffee husks after seed processing may be better profited if bioconverted into energy through anaerobic digestion. This process may be improved by implementing a pretreatment step and by co-digesting the coffee husks with a more liquid biomass. In this context, this study aimed at evaluating the anaerobic co-digestion of coffee husks with microalgal biomass. For this, both substrates were pretreated separately and in a mixture for attaining 15% of total solids (TS), which was demonstrated to be the minimum solid content for pretreatment of coffee husks. The results showed that the anaerobic co-digestion presented a synergistic effect, leading to 17% higher methane yield compared to the theoretical value of both substrates biodegraded separately. Furthermore, thermal hydrolysis pretreatment increased coffee husks anaerobic biodegradability. For co-digestion trials, the highest values were reached for pretreatment at 120 °C for 60 min, which led to 196 mLCH4/gVS and maximum methane production rate of 0.38 d−1.en-USrestritoAnaerobic co-digestionLignocellulosic biomassBiorefineryBiogasArtigo publicado em periodicohttps://www.sciencedirect.com/science/article/pii/S0960852417322162