Biochar from bovine manure as a sustainable additive to improve the anaerobic digestion of cheese whey

G. Madrigal; M. Huaraya; T. Sancho; O. Mendieta; J. Jaimes-Estévez

doi:10.1016/j.biteb.2022.101258

Biochar from bovine manure as a sustainable additive to improve the anaerobic digestion of cheese whey

G. Madrigal, M. Huaraya, T. Sancho, O. Mendieta, J. Jaimes-Estévez

Biogeoscience Research Group

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The cheese industry generates pure cheese whey (CWP) and bovine manure, which have high organic matter contents that, when disposed directly into the environment, can create severe environmental challenges. These impacts can be counteracted by anaerobic digestion (AD); however, the direct AD of CWP is inhibited (163.1 mL CH₄ g⁻¹VS_add). One way to avoid the inhibition of AD is to add biochar. Therefore, this study aimed to evaluate the effects of bovine manure biochar (0–2 g_biochar g⁻¹VS_substrate) on CWP methane production by testing the biochemical methane potential (BMP) of the CWP. The BMP of the CWP with 2 g_biochar g⁻¹VS_substrate was 358.4 mL CH₄ g⁻¹ VS_add. Bovine manure biochar was found to contribute to the stability of the AD process. The findings of our study demonstrate the energetic and economic viability of treating waste that possess characteristics like those of CWP using additives, such as biochar from bovine manure.

Original language	English
Article number	101258
Journal	Bioresource Technology Reports
Volume	20
DOIs	https://doi.org/10.1016/j.biteb.2022.101258
State	Published - Dec 2022

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title = "Biochar from bovine manure as a sustainable additive to improve the anaerobic digestion of cheese whey",

abstract = "The cheese industry generates pure cheese whey (CWP) and bovine manure, which have high organic matter contents that, when disposed directly into the environment, can create severe environmental challenges. These impacts can be counteracted by anaerobic digestion (AD); however, the direct AD of CWP is inhibited (163.1 mL CH4 g−1VSadd). One way to avoid the inhibition of AD is to add biochar. Therefore, this study aimed to evaluate the effects of bovine manure biochar (0–2 gbiochar g−1VSsubstrate) on CWP methane production by testing the biochemical methane potential (BMP) of the CWP. The BMP of the CWP with 2 gbiochar g−1VSsubstrate was 358.4 mL CH4 g−1 VSadd. Bovine manure biochar was found to contribute to the stability of the AD process. The findings of our study demonstrate the energetic and economic viability of treating waste that possess characteristics like those of CWP using additives, such as biochar from bovine manure.",

keywords = "Anaerobic digestion, Biochemical methane production, Bovine manure biochar, Cheese whey, Diauxic growth",

author = "G. Madrigal and M. Huaraya and T. Sancho and O. Mendieta and J. Jaimes-Est{\'e}vez",

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doi = "10.1016/j.biteb.2022.101258",

language = "English",

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T1 - Biochar from bovine manure as a sustainable additive to improve the anaerobic digestion of cheese whey

AU - Madrigal, G.

AU - Huaraya, M.

AU - Sancho, T.

AU - Mendieta, O.

AU - Jaimes-Estévez, J.

PY - 2022/12

Y1 - 2022/12

N2 - The cheese industry generates pure cheese whey (CWP) and bovine manure, which have high organic matter contents that, when disposed directly into the environment, can create severe environmental challenges. These impacts can be counteracted by anaerobic digestion (AD); however, the direct AD of CWP is inhibited (163.1 mL CH4 g−1VSadd). One way to avoid the inhibition of AD is to add biochar. Therefore, this study aimed to evaluate the effects of bovine manure biochar (0–2 gbiochar g−1VSsubstrate) on CWP methane production by testing the biochemical methane potential (BMP) of the CWP. The BMP of the CWP with 2 gbiochar g−1VSsubstrate was 358.4 mL CH4 g−1 VSadd. Bovine manure biochar was found to contribute to the stability of the AD process. The findings of our study demonstrate the energetic and economic viability of treating waste that possess characteristics like those of CWP using additives, such as biochar from bovine manure.

AB - The cheese industry generates pure cheese whey (CWP) and bovine manure, which have high organic matter contents that, when disposed directly into the environment, can create severe environmental challenges. These impacts can be counteracted by anaerobic digestion (AD); however, the direct AD of CWP is inhibited (163.1 mL CH4 g−1VSadd). One way to avoid the inhibition of AD is to add biochar. Therefore, this study aimed to evaluate the effects of bovine manure biochar (0–2 gbiochar g−1VSsubstrate) on CWP methane production by testing the biochemical methane potential (BMP) of the CWP. The BMP of the CWP with 2 gbiochar g−1VSsubstrate was 358.4 mL CH4 g−1 VSadd. Bovine manure biochar was found to contribute to the stability of the AD process. The findings of our study demonstrate the energetic and economic viability of treating waste that possess characteristics like those of CWP using additives, such as biochar from bovine manure.

KW - Anaerobic digestion

KW - Biochemical methane production

KW - Bovine manure biochar

KW - Cheese whey

KW - Diauxic growth

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DO - 10.1016/j.biteb.2022.101258

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SN - 2589-014X

VL - 20

JO - Bioresource Technology Reports

JF - Bioresource Technology Reports

M1 - 101258

ER -

Biochar from bovine manure as a sustainable additive to improve the anaerobic digestion of cheese whey

Abstract

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