2026-04-14T15:23:49Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/464802021-06-24T07:49:29Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

Santos Clotas, Eric Cabrera Codony, Alba Boada, Ellana Gich, Frederic Muñoz Torre, Raúl Martín, Maria J. 2021-05-05T10:56:30Z 2021-05-05T10:56:30Z 2019 Bioresource Technology, 2019, Vol. 294, p. 122136 0960-8524 http://uvadoc.uva.es/handle/10324/46480 10.1016/j.biortech.2019.122136 122136 Bioresource Technology 294 The removal of siloxanes (D4 and D5) and volatile organic contaminants (hexane, toluene and limonene) typically found in sewage biogas was investigated in a lab-scale biotrickling filter (BTF) packed with lava rock under anoxic conditions. Complete removal efficiencies for toluene and limonene were recorded at all empty bed residence time (EBRT) tested. The influence of EBRT was remarkable on the abatement of D5, whose removal decreased from 37% at 14.5 min to 16% at 4 min, while the removal of D4 and hexane remained below 16%. The packing material was supplemented with 20% of activated carbon aiming at increasing the mass transfer of the most hydrophobic pollutants. This strategy supported high removal efficiencies of 43 and 45% for hexane and D5 at the lowest EBRT. CO2 and silica were identified as mineralization products along with the presence of metabolites in the trickling solution such as dimethylsilanediol, 2-carene and α-terpinene. eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2019 Elsevier Attribution-NonCommercial-NoDerivatives 4.0 Internacional Efficient removal of siloxanes and volatile organic compounds from sewage biogas by an anoxic biotrickling filter supplemented with activated carbon info:eu-repo/semantics/article