RT info:eu-repo/semantics/article
T1 Influence of carbon-coated zero-valent iron-based nanoparticle concentration on continuous photosynthetic biogas upgrading
A1 Hoyos, Edwin G.
A1 Amo Duodu, Gloria
A1 Gulsum Kiral, U.
A1 Vargas Estrada, Laura
A1 Lebrero Fernández, Raquel
A1 Muñoz Torre, Raúl
K1 Renewable and Green Energy
K1 Mass transfer
K1 Biogas upgrading
K1 Nanoparticles
K1 Microalgae productivity
K1 Mejora del biogás
K1 Nanopartículas
K1 Mejora de la fotosíntesis
K1 3303.06 Tecnología de la Combustión
K1 2406.03 Bioenergética
AB This study assessed the influence of carbon-coated zero-valent nanoparticle concentration (70, 140 and 280 mg L−1) on the performance of photosynthetic biogas upgrading in an indoor pilot scale plant composed of an algal-bacterial photobioreactor interconnected to an external biogas absorption column. In addition, the influence of nanoparticle concentration on the abiotic CO2 gas-liquid mass transfer in the biogas absorption column was also evaluated. Microalgae productivity was enhanced by > 100 % when nanoparticles were added to the cultivation broth, which also boosted nitrogen and phosphorus assimilation from centrate. The biomethane produced complied with most international standards only when nanoparticles were supplemented, achieving CO2 concentrations < 1 % (CO2 removal efficiencies > 98 %) and CH4 concentrations > 94 % in the treated biogas. Finally, this research consistently demonstrated that the improvement of biogas upgrading performance by the addition of nanoparticles was based on a photosynthesis enhancement or stimulation (which significantly increased the pH in the algal cultivation broth) rather than on an improved nanoparticle-mediated CO2 capture in the biogas absorption column.
PB Elsevier
SN 0016-2361
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/61483
UL https://uvadoc.uva.es/handle/10324/61483
LA eng
NO Fuel,  2024, vol. 356, 129610
NO Producción Científica
DS UVaDOC
RD 04-jun-2024