Reutilization of brewer's spent grain as spent mushroom substrate for the generation of biogas in a semi-continuous digester
Mauricio Roque Ganuza,
Santiago Jaramillo Mejia,
Edgardo Albertó
Abstract:In this work we explore the use of brewers' spent grain (BSG) to produce biogas after it was used to produce the edible mushroom Pleurotus pulmonarius within the concept of circular economy. We compare the production of biomethane obtained using: i) spent mushroom substrate (SMS) and ii) BSG to feed the digester. We produced the mushroom using a mixture of sawdust and BSG and the resulting SMS was used to feed the digester. The mono-digestion of both substrates was carried out in 19l semi-continuos biodigester… Show more
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