RT info:eu-repo/semantics/article
T1 Methane abatement in a gas-recycling biotrickling filter: Evaluating innovative operational strategies to overcome mass transfer limitations
A1 Estrada, José M.
A1 Lebrero, Raquel
A1 Quijano, Guillermo
A1 Pérez, Rebeca
A1 Figueroa-González, Ivonne
A1 García-Encina, Pedro A.
A1 Muñoz Torre, Raúl
AB The present study aimed at maximizing the performance of a standard biotrickling filter (BTF) devoted to the treatment of CH4 at low concentrations by enhancing the mass transfer using optimum liquid recycling rates and an innovative gas recycling strategy. Internal gas recycling favored CH4 abatement in the early stages of BTF operation and supported stable elimination capacities (ECs) above 30 g m−3 h−1 at an empty bed residence time of 4 min and a liquid recycling velocity of 5 m h−1 higher than most ECs achieved in single phase BTFs to date. The BTF exhibited a high microbial diversity (Shannon–Wiener indices of 2.5–2.8) dominated by Type I methanotrophs, likely due to the presence of high Cu2+ concentrations. Mass transfer limitations from the aqueous phase to the microorganisms, attributed to biomass accumulation in the packing material, were identified under the long term operation.
SN 1385-8947
YR 2014
FD 2014
LK https://uvadoc.uva.es/handle/10324/64947
UL https://uvadoc.uva.es/handle/10324/64947
LA spa
NO Volume 253, 1 October 2014, Pages 385-393
DS UVaDOC
RD 18-nov-2024