RT info:eu-repo/semantics/masterThesis
T1 Enhancing direct interspecies electron transfer through co- immobilization of anaerobic microbes using a conductive sponge
A1 Álvarez de la Torre, Adrián
A2 Universidad de Valladolid. Escuela de Ingenierías Industriales
K1 Direct Interspecies Electron transfer
K1 Conductive material
K1 Nickel plated sponge
K1 Anaerobic digestion
K1 3303 Ingeniería y Tecnología Químicas
AB Anaerobic Digestion (AD) is a biological process which can produce methane by treating organic waste. Recently, it has been discovered that adding conductive materials (CMs) to the AD process can induce direct interspecies electron transfer (DIET) between exoelectrogenic and electrotrophic bacteria, enhancing the efficiency of methane production. However, in a continuous operation, washout of CM remains a challenge today especially in upflow anaerobic sludge blanket (UASB) reactors. Thereby, in this study, enhancing DIET by co-immobilizing anaerobic microbes in a nickel conductive sponge synthesized via the electroless plating method to improve AD performance was attempted. Nickel-plated Melamine sponge (MS) and Polyurethane sponge (PS) were evaluated to select a suitable sponge for the AD process. Despite higher biomass attachment on MS compared to PS, nickel peeling was observed, leading to the selection of PS instead. In the AD experiment, Ni plated PS achieved a higher TOC removal rate, suggesting enhanced organic matter removal and process stability through DIET.
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/75345
UL https://uvadoc.uva.es/handle/10324/75345
LA eng
NO Departamento de Ingeniería Química y Tecnología del Medio Ambiente
DS UVaDOC
RD 05-abr-2025