Gaseous emissions during the solid state fermentation of different wastes for enzyme production at pilot scale
The emissions of volatile organic compounds (VOC), CH₄, N₂O and NH₃ during the solid state fermentation process of some selected wastes to obtain different enzymes have been determined at pilot scale. Orange peel + compost (OP), hair wastes + raw sludge (HW) and winterization residue + raw sludge (W...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:196176 |
| Acceso en línea: | https://ddd.uab.cat/record/196176 https://dx.doi.org/urn:doi:10.1016/j.biortech.2014.12.031 |
| Access Level: | acceso abierto |
| Palabra clave: | Solid state fermentation Emission factors VOC characterization Ammonia Methane |
| Sumario: | The emissions of volatile organic compounds (VOC), CH₄, N₂O and NH₃ during the solid state fermentation process of some selected wastes to obtain different enzymes have been determined at pilot scale. Orange peel + compost (OP), hair wastes + raw sludge (HW) and winterization residue + raw sludge (WR) have been processed in duplicate in 50 L reactors to provide emission factors and to identify the different VOC families present in exhaust gaseous emissions. Ammonia emission from HW fermentation (3.2 ± 0.5 kg Mg⁻¹ dry matter) and VOC emission during OP processes (18 ± 6 kg Mg⁻¹ dry matter) should be considered in an industrial application of these processes. Terpenes have been the most emitted VOC family during all the processes although the emission of sulphide molecules during HW SSF is notable. The most emitted compound was dimethyl disulfide in HW and WR processes, and limonene in the SSF of OP. |
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