RT journal article
T1 Effect of Temperature on Biohydrogen and Biomethane Productions by Anaerobic Digestion of Sugar Beet by-Products
A1 Aboudi, Kaoutar
A1 Gómez Quiroga, Xiomara
A1 Álvarez Gallego, Carlos José
A1 Quiroga Alonso, José María
A1 Romero García, Luis Isidoro
A2 Ingeniería Química y Tecnología de Alimentos
K1 Anaerobic digestion
K1 sugar beet by-products
K1 temperature
K1 inhibition
AB This work analyzes the effect of temperature on the anaerobic digestion of sugar beet by-products for both biohydrogen and biomethane production. The findings demonstrate that the anaerobic process was significantly affected by the increase in temperature from mesophilic to thermophilic or hyper-thermophilic conditions. Therefore, it was found that the mesophilic temperature was more suitablefor the anaerobic digestion of sugar beet by-products, using either the raw feedstock or the pretreated feedstock at higher temperatures. The specific production of biohydrogen from thermophilic acidogenic digester was 1.7 fold higher than that obtained from the hyper-thermophilic one. Moreover, when raw feedstock was used in single stage digesters, a methane production rate of 0.55 LCH4/Lr*d was obtained from the mesophilic digester, which was 45% higher than that of thethermophilic one. It has been observed that the increase in temperature led to a high accumulation of volatile and long chain fatty acids, inhibiting and slowing down the anaerobic process.
PB International Journal of Environmental Science and Development. Vol. 8, No. 11, November 2017
SN 2010-0264
YR 2017
FD 2017-11-01
LK http://hdl.handle.net/10498/29755
UL http://hdl.handle.net/10498/29755
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026