Print Email Facebook Twitter Improvement of Biogas Quality and Quantity for Small-Scale Biogas-Electricity Generation Application in off-Grid Settings Title Improvement of Biogas Quality and Quantity for Small-Scale Biogas-Electricity Generation Application in off-Grid Settings: A Field-Based Study Author Wasajja, H. (TU Delft Sanitary Engineering; Ndejje University) Al-Muraisy, S.A.A. (TU Delft Sanitary Engineering) Piaggio, A.L. (TU Delft Sanitary Engineering) Ceron Chafla, P.S. (TU Delft Sanitary Engineering) Aravind, P.V. (TU Delft Energy Technology; Rijksuniversiteit Groningen) Spanjers, H. (TU Delft Sanitary Engineering) van Lier, J.B. (TU Delft Sanitary Engineering) Lindeboom, R.E.F. (TU Delft Sanitary Engineering) Date 2021 Abstract Small-scale electrical power generation (<100 kW) from biogas plants to provide off-grid electricity is of growing interest. Currently, gas engines are used to meet this demand. Alternatively, more efficient small-scale solid oxide fuel cells (SOFCs) can be used to enhance electricity generation from small-scale biogas plants. Most electricity generators require a constant gas supply and high gas quality in terms of absence of impurities like H 2S. Therefore, to efficiently use the biogas from existing decentralized anaerobic digesters for electricity production, higher quality and stable biogas flow must be guaranteed. The installation of a biogas upgrading and buffer system could be considered; however, the cost implication could be high at a small scale as compared to locally available alterna-tives such as co-digestion and improved digester operation. Therefore, this study initially describes relevant literature related to feedstock pre-treatment, co-digestion and user operational practices of small-scale digesters, which theoretically could lead to major improvements of anaerobic digestion process efficiency. The theoretical preamble is then coupled to the results of a field study, which demonstrated that many locally available resources and user practices constitute frugal innovations with potential to improve biogas quality and digester performance in off-grid settings. Subject biogas qualitybiogas quantityanaerobic digestionelectricity generationpre-treatmentco-digestionuser practices To reference this document use: http://resolver.tudelft.nl/uuid:1b29cf09-c7b9-48bd-9a53-f41bf5334430 DOI https://doi.org/10.3390/en14113088 ISSN 1996-1073 Source Energies, 14 (11) Part of collection Institutional Repository Document type journal article Rights © 2021 H. Wasajja, S.A.A. Al-Muraisy, A.L. Piaggio, P.S. Ceron Chafla, P.V. Aravind, H. Spanjers, J.B. van Lier, R.E.F. Lindeboom Files PDF energies_14_03088.pdf 32.34 MB Close viewer /islandora/object/uuid:1b29cf09-c7b9-48bd-9a53-f41bf5334430/datastream/OBJ/view