TY - JOUR
T1 - Anaerobic co-digestion of cattle rumen content and food waste for biogas production
T2 - Establishment of co-digestion ratios and kinetic studies
AU - Ihoeghian, Newton A.
AU - Amenaghawon, Andrew N.
AU - Ajieh, Mike U.
AU - Oshoma, Cyprian E.
AU - Ogofure, Abraham
AU - Erhunmwunse, Nosakhare O.
AU - Edosa, Valerie I.O.
AU - Tongo, Isioma
AU - Obuekwe, Ifeyinwa S.
AU - Isagba, Ebuwa S.
AU - Emokaro, Christopher
AU - Ezemonye, Lawrence I.N.
AU - Lag-Brotons, Alfonso J.
AU - Semple, Kirk T.
AU - Martin, Alastair D.
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/6
Y1 - 2022/6
N2 - This study investigated the batch co-digestion of cattle rumen content (CRC) and food waste (FW) for biogas production in different ratios (CRC:FW) to assess biogas production and process stability. The results showed that CRC and FW possess characteristics that are desirable for biogas production as seen in their respective total solids (10.85 and 26.53%), volatile solids (89 and 86.83%) and carbon to nitrogen ratio (23.7 and 15.7) values. Co-digestion improved carbon to nitrogen ratio, biogas yield and pH of the co-substrate compared to individual substrates. The 50:50 co-digestion ratio was found to be optimum as it gave the maximum cumulative biogas yield of 320.52 ml/gVSadded. Co-digestion also improved the pH, volatile fatty acid (VFA) and total ammonia nitrogen (TAN) characteristics during digestion. The cone model was able to adequately represent the kinetics of the process. These findings have provided very useful insights into the co-digestion of CRC and FW.
AB - This study investigated the batch co-digestion of cattle rumen content (CRC) and food waste (FW) for biogas production in different ratios (CRC:FW) to assess biogas production and process stability. The results showed that CRC and FW possess characteristics that are desirable for biogas production as seen in their respective total solids (10.85 and 26.53%), volatile solids (89 and 86.83%) and carbon to nitrogen ratio (23.7 and 15.7) values. Co-digestion improved carbon to nitrogen ratio, biogas yield and pH of the co-substrate compared to individual substrates. The 50:50 co-digestion ratio was found to be optimum as it gave the maximum cumulative biogas yield of 320.52 ml/gVSadded. Co-digestion also improved the pH, volatile fatty acid (VFA) and total ammonia nitrogen (TAN) characteristics during digestion. The cone model was able to adequately represent the kinetics of the process. These findings have provided very useful insights into the co-digestion of CRC and FW.
KW - Anaerobic digestion
KW - Biomethane yield
KW - Cattle rumen content
KW - Co-digestion
KW - Food waste
KW - Kinetic modeling
UR - https://www.scopus.com/pages/publications/85127034645
U2 - 10.1016/j.biteb.2022.101033
DO - 10.1016/j.biteb.2022.101033
M3 - Article
AN - SCOPUS:85127034645
SN - 2589-014X
VL - 18
JO - Bioresource Technology Reports
JF - Bioresource Technology Reports
M1 - 101033
ER -