RT journal article
T1 Optimizing Biomethane Production from Industrial Pig Slurry and Wine Vinasse: A Mathematical Approach
A1 Cañadas Marín, Belén
A1 Fernández Rodríguez, Juana
A1 Solera del Río, María del Rosario
A1 Pérez García, Montserrat
A2 Tecnologías del Medio Ambiente
K1 biomethane
K1 Biochemical Methane Potential (BMP)
K1 anaerobic co-digestion (AcoD)
K1 Design of Experiments (DoE)
K1 Box–Behnken design (BBD)
AB Pig slurry (PS) and wine vinasse (WV) pose environmental risks if not properlymanaged. Their composition makes them suitable for anaerobic co-digestion (AcoD),enhancing biomethane production and improving organic matter degradation efficiency.This research applies an innovative Design of Experiments (DoE) approach—specificallythe Box–Behnken design (BBD)—to systematically optimize the AcoD process, surpassingtraditional single-factor methods by efficiently evaluating the interactions. Variables suchas temperature (35 ◦C, 52.5 ◦C, 70 ◦C), substrate ratio (25PS:75WV, 50PS:50WV, 75PS:25WV)and pH (7, 7.5, 8) were tested using a Box–Behnken design which studied the correlationsbetween the experimental data and the model. In fact, the results showed that temperature,ratio, and their interaction significantly influenced biomethane production, being the pH thefactor with the least influence on the response. Optimal conditions—pH of 8, temperatureof 35 ◦C and a 50:50 substrate ratio—achieved a biomethane yield of 487.94 CH4/gVS(Volatile Solids). These results demonstrate the effectiveness of the DoE methodology inmaximizing biomethane production and represent a significant advancement in valorizingwastes from pig farms and wineries, promoting a circular and sustainable economy.
PB MDPI
SN 2305-7084
YR 2025
FD 2025-06-03
LK http://hdl.handle.net/10498/38871
UL http://hdl.handle.net/10498/38871
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026