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Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate

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Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate. / Ihoeghian, Newton A.; Amenaghawon, Andrew N.; Ogofure, Abraham et al.
In: Green Technologies and Sustainability, Vol. 1, No. 3, 100035, 30.09.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ihoeghian, NA, Amenaghawon, AN, Ogofure, A, Oshoma, CE, Ajieh, MU, Erhunmwunse, NO, Obuekwe, IS, Edosa, VIO, Tongo, I, Emokaro, C, Ezemonye, LIN, Semple, KT & Martin, AD 2023, 'Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate', Green Technologies and Sustainability, vol. 1, no. 3, 100035. https://doi.org/10.1016/j.grets.2023.100035

APA

Ihoeghian, N. A., Amenaghawon, A. N., Ogofure, A., Oshoma, C. E., Ajieh, M. U., Erhunmwunse, N. O., Obuekwe, I. S., Edosa, V. I. O., Tongo, I., Emokaro, C., Ezemonye, L. I. N., Semple, K. T., & Martin, A. D. (2023). Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate. Green Technologies and Sustainability, 1(3), Article 100035. https://doi.org/10.1016/j.grets.2023.100035

Vancouver

Ihoeghian NA, Amenaghawon AN, Ogofure A, Oshoma CE, Ajieh MU, Erhunmwunse NO et al. Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate. Green Technologies and Sustainability. 2023 Sept 30;1(3):100035. Epub 2023 Jun 21. doi: 10.1016/j.grets.2023.100035

Author

Ihoeghian, Newton A. ; Amenaghawon, Andrew N. ; Ogofure, Abraham et al. / Biochar-facilitated batch co-digestion of food waste and cattle rumen content : An assessment of process stability, kinetic studies, and pathogen fate. In: Green Technologies and Sustainability. 2023 ; Vol. 1, No. 3.

Bibtex

@article{3736b71deb344f7b83ed236420f706d4,
title = "Biochar-facilitated batch co-digestion of food waste and cattle rumen content: An assessment of process stability, kinetic studies, and pathogen fate",
abstract = "Anaerobic digestion is an established sustainable route for managing the organic fraction of municipal solid waste. The commonly adopted mono digestion of organic waste is often beset by many challenges chief of which is process instability. This study assessed the role of biochar in process stability and pathogen fate for batch co-digestion of food waste (FW) and cattle rumen content (CRC). Biochar had different functional groups, a large surface area (627.50 m2/g), and a pore volume (0.32 cm3/g). Biochar amendments helped stabilize the pH and reduce the accumulation of volatile fatty acids (VFAs) and total ammonia nitrogen (TAN). Biochar amendment using 5 g biochar also facilitated biogas production at low pH conditions (3.72 – 4.45), yielding a cumulative biogas yield of 706.11 ml/gVS with a biomethane composition of 64.3%. Pathogen counts revealed significant log reductions in the range 3.0–3.2 for E. coli, Bacillus, and Salmonella within the first 7 days of digestion, corresponding to 99.9% removal, indicating the safety of the resulting digestate for agricultural use. The modified Gompertz model adequately represented the kinetics of the anaerobic digestion process. The study has provided insights into biochar-facilitated digestion of CRC and FW for enhanced process stability.",
keywords = "Biochar, Cattle rumen content, Anaerobic digestion, Food waste, Process stability, Kinetic modeling",
author = "Ihoeghian, {Newton A.} and Amenaghawon, {Andrew N.} and Abraham Ogofure and Oshoma, {Cyprian E.} and Ajieh, {Mike U.} and Erhunmwunse, {Nosakhare O.} and Obuekwe, {Ifeyinwa S.} and Edosa, {Valerie I.O.} and Isioma Tongo and Christopher Emokaro and Ezemonye, {Lawrence I.N.} and Semple, {Kirk T.} and Martin, {Alastair D.}",
year = "2023",
month = sep,
day = "30",
doi = "10.1016/j.grets.2023.100035",
language = "English",
volume = "1",
journal = "Green Technologies and Sustainability",
issn = "2949-7361",
publisher = "Elsevier",
number = "3",

}

RIS

TY - JOUR

T1 - Biochar-facilitated batch co-digestion of food waste and cattle rumen content

T2 - An assessment of process stability, kinetic studies, and pathogen fate

AU - Ihoeghian, Newton A.

AU - Amenaghawon, Andrew N.

AU - Ogofure, Abraham

AU - Oshoma, Cyprian E.

AU - Ajieh, Mike U.

AU - Erhunmwunse, Nosakhare O.

AU - Obuekwe, Ifeyinwa S.

AU - Edosa, Valerie I.O.

AU - Tongo, Isioma

AU - Emokaro, Christopher

AU - Ezemonye, Lawrence I.N.

AU - Semple, Kirk T.

AU - Martin, Alastair D.

PY - 2023/9/30

Y1 - 2023/9/30

N2 - Anaerobic digestion is an established sustainable route for managing the organic fraction of municipal solid waste. The commonly adopted mono digestion of organic waste is often beset by many challenges chief of which is process instability. This study assessed the role of biochar in process stability and pathogen fate for batch co-digestion of food waste (FW) and cattle rumen content (CRC). Biochar had different functional groups, a large surface area (627.50 m2/g), and a pore volume (0.32 cm3/g). Biochar amendments helped stabilize the pH and reduce the accumulation of volatile fatty acids (VFAs) and total ammonia nitrogen (TAN). Biochar amendment using 5 g biochar also facilitated biogas production at low pH conditions (3.72 – 4.45), yielding a cumulative biogas yield of 706.11 ml/gVS with a biomethane composition of 64.3%. Pathogen counts revealed significant log reductions in the range 3.0–3.2 for E. coli, Bacillus, and Salmonella within the first 7 days of digestion, corresponding to 99.9% removal, indicating the safety of the resulting digestate for agricultural use. The modified Gompertz model adequately represented the kinetics of the anaerobic digestion process. The study has provided insights into biochar-facilitated digestion of CRC and FW for enhanced process stability.

AB - Anaerobic digestion is an established sustainable route for managing the organic fraction of municipal solid waste. The commonly adopted mono digestion of organic waste is often beset by many challenges chief of which is process instability. This study assessed the role of biochar in process stability and pathogen fate for batch co-digestion of food waste (FW) and cattle rumen content (CRC). Biochar had different functional groups, a large surface area (627.50 m2/g), and a pore volume (0.32 cm3/g). Biochar amendments helped stabilize the pH and reduce the accumulation of volatile fatty acids (VFAs) and total ammonia nitrogen (TAN). Biochar amendment using 5 g biochar also facilitated biogas production at low pH conditions (3.72 – 4.45), yielding a cumulative biogas yield of 706.11 ml/gVS with a biomethane composition of 64.3%. Pathogen counts revealed significant log reductions in the range 3.0–3.2 for E. coli, Bacillus, and Salmonella within the first 7 days of digestion, corresponding to 99.9% removal, indicating the safety of the resulting digestate for agricultural use. The modified Gompertz model adequately represented the kinetics of the anaerobic digestion process. The study has provided insights into biochar-facilitated digestion of CRC and FW for enhanced process stability.

KW - Biochar

KW - Cattle rumen content

KW - Anaerobic digestion

KW - Food waste

KW - Process stability

KW - Kinetic modeling

U2 - 10.1016/j.grets.2023.100035

DO - 10.1016/j.grets.2023.100035

M3 - Journal article

VL - 1

JO - Green Technologies and Sustainability

JF - Green Technologies and Sustainability

SN - 2949-7361

IS - 3

M1 - 100035

ER -