RT info:eu-repo/semantics/bachelorThesis
T1 Volatile fatty acids production from fish wastewater
A1 Aragón Ruiz, Manuel
A2 Universidad de Valladolid. Escuela de Ingenierías Industriales
K1 Ácidos grasos - Industria y comercio
K1 Biodegradación
K1 Aguas residuales - Depuración - Tratamiento biológico
K1 Industria pesquera
K1 Recuperación (Residuos, etc.)
AB In this work, two experiments were carried out to investigate the production of volatile fatty acids (VFAs) through the anaerobic degradation of a wastewater collected from a fish processing industry. The first experiment was carried out in batches, at different initial pH values (5, 6, 7, 8 and 9). Acetate and propionate were the main products obtained at the end of the experiment. The highest production of VFAs (5276 mg COD/L) was obtained at pH 8.   The second experiment was performed in an anaerobic continuous reactor at pH 5.5. Several conditions were tested to improve the VFAs production such as different HRT (18 h, 12 h and 8 h), different feed´s dilution (50 x, 25 x, 10 x, 2 x and 1 x) and different feed´s salinity (2.8 g/L and 20 g/L of salt). The increase of feed´s salinity appear to be the best strategy, since the concentration of VFAs increased (457 mg COD/L with 2,8 mg/L of salt to 788 mg COD/L with 20 mg/L of salt) and the percentage of CH4 in the reactor decreased.
YR 2018
FD 2018
LK http://uvadoc.uva.es/handle/10324/35285
UL http://uvadoc.uva.es/handle/10324/35285
LA eng
NO Departamento de Ingeniería Química y Tecnología del Medio Ambiente
DS UVaDOC
RD 16-may-2024