TY - JOUR
T1 - Co-digestion of Laminaria digitata with cattle manure: A unimodel simulation study of both batch and continuous experiments
AU - Sun, Hao
AU - Kovalovszki, Adam
AU - Tsapekos, Panagiotis
AU - Alvarado-Morales, Merlin
AU - Rudatis, Amata
AU - Wu, Shubiao
AU - Dong, Renjie
AU - Kougias, Panagiotis
AU - Angelidaki, Irini
PY - 2019
Y1 - 2019
N2 - This work investigated the thermophilic (55 °C) co-digestion performance both in batch and continuous mode operation. The biochemical methane potentials of L. digitata and cattle manure were 308 ± 24 and 203 ± 33 mL CH4/g VS, respectively. The optimum co-digestion feedstock ratio was found to be 80% macroalgae: 20% manure on a volatile solids basis, which produced 290 ± 19 mL CH4/g VS under long-term and stable continuous operation at an organic loading rate of 2 g VS/L/d and hydraulic retention time of 15 days. Simulations of the batch and continuous experiments were, for the first time, carried out using an integrated anaerobic bioconversion model without structural modifications. Close fits between measured and simulated data provided mutual confirmation of experimental reliability and model robustness, and provided new perspectives for the use of the software tool.
AB - This work investigated the thermophilic (55 °C) co-digestion performance both in batch and continuous mode operation. The biochemical methane potentials of L. digitata and cattle manure were 308 ± 24 and 203 ± 33 mL CH4/g VS, respectively. The optimum co-digestion feedstock ratio was found to be 80% macroalgae: 20% manure on a volatile solids basis, which produced 290 ± 19 mL CH4/g VS under long-term and stable continuous operation at an organic loading rate of 2 g VS/L/d and hydraulic retention time of 15 days. Simulations of the batch and continuous experiments were, for the first time, carried out using an integrated anaerobic bioconversion model without structural modifications. Close fits between measured and simulated data provided mutual confirmation of experimental reliability and model robustness, and provided new perspectives for the use of the software tool.
KW - Cattle manure
KW - Co-digestion
KW - Laminaria digitata
KW - Macroalgae
KW - Modeling
U2 - 10.1016/j.biortech.2018.12.110
DO - 10.1016/j.biortech.2018.12.110
M3 - Journal article
C2 - 30658265
AN - SCOPUS:85059890874
SN - 0960-8524
VL - 276
SP - 361
EP - 368
JO - Bioresource Technology
JF - Bioresource Technology
ER -