RT info:eu-repo/semantics/article T1 Biological elimination of dilute methane through multi-channel Taylor flow capillary bioreactors A1 Kraakman, Norbertus Joannes Richardus A1 Bordel Velasco, Sergio A1 Lebrero Fernández, Raquel A1 Muñoz Torre, Raúl K1 Methane abatement K1 Gas treatment K1 Mass transfer K1 Surfactant K1 Silicone oil K1 3308 Ingeniería y Tecnología del Medio Ambiente AB Elimination of dilute methane (<5 % v/v) was investigated in several multi-channel capillary bioreactor con-figurations and evaluated for operating conditions and parameters relevant to long-term reliable performance.Although all reactors showed a high methane removal capacity, the addition of only surfactant or only siliconeoil did not show enhancement in methane removal. The capillary bioreactor containing both silicone oil (up to20 % v/v, 20 cSt) and surfactant (BRIJ 58) treated methane with very high elimination capacities of >200 g perm3 internal capillary channel per hour at gas contact times around 30 s, which is one order of magnitude lowerthan gas contact times of conventional biological gas treatment methods. No accumulation of biomass on thewalls of capillary channels was observed during the 300 days of operation. Internal gas recirculation was appliedto decouple gas-liquid turbulence conditions from the actual gas retention time. This work revealed that acapillary bioreactor can be a useful platform for the abatement of dilute methane emissions. PB Elsevier SN 2214-7144 YR 2025 FD 2025 LK https://uvadoc.uva.es/handle/10324/80726 UL https://uvadoc.uva.es/handle/10324/80726 LA eng NO Journal of Water Process Engineering, 2025, vol. 72, p. 107531 NO Producción Científica DS UVaDOC RD 12-ene-2026