2026-05-05T20:04:38Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/597132025-01-09T12:49:08Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

García Álvaro, Alfonso Ruiz Palomar, César Hermosilla Redondo, María Daphne Muñoz Torre, Raúl Godos Crespo, Ignacio de 2023 Producción Científica Cereal straw is one of the most abundant wastes worldwide, with 30.000 million tons produced per year. Bioconversion of this residual material into carboxylates by anaerobic digestion could potentially replace conventional production based on fossil feedstocks (oil). In this work, fundamental issues of this bioconversion have been explored, including: different kinds of straw (wheat, barley and rye), biomass size reduction, mass balances and modelling of the different steps of the digestion. Under optimum conditions, 44% of the raw material was effectively converted into VFAs (mainly acetate) when barley was used as substrate. Wheat and rye straw presented lower conversion rates due to the higher lignin content compared to barley straw. According to the modelling proposed, methanogenesis and hydrolysis presented very similar reaction rates, which resulted in a simultaneous production of VFAs and biogas. In view of these results, a process integration is proposed where biogas covers the thermal needs of the biotransformation of barley biomass into VFAs. application/pdf https://uvadoc.uva.es/handle/10324/59713 eng Elsevier Reciclaje (Residuos, etc.) Biomasa Renewable and Green Energy 31 Ciencias Agrarias 3106 Ciencia Forestal Simultaneous production of biogas and volatile fatty acids through anaerobic digestion using cereal straw as substrate info:eu-repo/semantics/article TEXT UVaDOC. Repositorio Documental de la Universidad de Valladolid Hispana