Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas
Cheese production in the Puno region generates cheese whey (CW) as an organic waste while requiring substantial energy inputs, making anaerobic digestion (AD) a promising solution. Unlike previous studies focused on single-substrate systems, this study evaluated AD integration using CW from five che...
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| Formato: | Artículo |
| Lenguaje: | inglés |
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2026
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| Acceso en línea: | Enlace permanente (DOI o Handle) |
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| _version_ | 1881700508078440448 |
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| author | Glen Madrigal German Mamani-Cachicatari Oscar Andrés Mendieta Menjura Jaime Martí-Herrero |
| author_browse | German Mamani-Cachicatari Glen Madrigal Jaime Martí-Herrero Oscar Andrés Mendieta Menjura |
| author_facet | Glen Madrigal German Mamani-Cachicatari Oscar Andrés Mendieta Menjura Jaime Martí-Herrero |
| author_sort | Glen Madrigal |
| collection | Producción científica |
| description | Cheese production in the Puno region generates cheese whey (CW) as an organic waste while requiring substantial energy inputs, making anaerobic digestion (AD) a promising solution. Unlike previous studies focused on single-substrate systems, this study evaluated AD integration using CW from five cheese factories, with and without manure-derived biochar (BM-BC). CW mono-digestion showed rapid acid accumulation and methanogenesis inhibition (13.57–50.48 mL CH 4 g -1 VS). In contrast, BM-BC addition significantly increased methane yields to 270.94–352.08 mL CH 4 g -1 VS. BM-BC stabilized digestion through volatile fatty acid buffering, promoted microbial growth, and increased methane concentration to 63.4% v/v. Energy integration analysis showed that two factories could fully replace conventional fuels with biogas, while the others achieved approximately 80% substitution. Economic assessments indicated annual savings of USD 1885.0–6074.6 and payback periods of 1.6–5 years. Additionally, GHG emission offsets averaged 15.5 t CO 2 -eq yr -1 across the evaluated factories. These findings demonstrate the technical, economic, and environmental viability of BM-BC-enhanced AD in the regional cheese industry, supporting renewable energy development and sustainability goals. |
| format | Article |
| id | openalex:W7164152896 |
| institution | UPeU |
| language | English |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
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| spelling | openalex:W7164152896Cattle manure biochar as an additive to improve methane production from cheese whey in rural areasGlen MadrigalGerman Mamani-CachicatariOscar Andrés Mendieta MenjuraJaime Martí-Herrerowheyanaerobic digestionmethane productionbiogasmethanogenesis inhibitionenergy integrationpayback periodPuno regionAnaerobic Digestion and Biogas ProductionBiofuel production and bioconversionComposting and Vermicomposting TechniquesCheese production in the Puno region generates cheese whey (CW) as an organic waste while requiring substantial energy inputs, making anaerobic digestion (AD) a promising solution. Unlike previous studies focused on single-substrate systems, this study evaluated AD integration using CW from five cheese factories, with and without manure-derived biochar (BM-BC). CW mono-digestion showed rapid acid accumulation and methanogenesis inhibition (13.57–50.48 mL CH 4 g -1 VS). In contrast, BM-BC addition significantly increased methane yields to 270.94–352.08 mL CH 4 g -1 VS. BM-BC stabilized digestion through volatile fatty acid buffering, promoted microbial growth, and increased methane concentration to 63.4% v/v. Energy integration analysis showed that two factories could fully replace conventional fuels with biogas, while the others achieved approximately 80% substitution. Economic assessments indicated annual savings of USD 1885.0–6074.6 and payback periods of 1.6–5 years. Additionally, GHG emission offsets averaged 15.5 t CO 2 -eq yr -1 across the evaluated factories. These findings demonstrate the technical, economic, and environmental viability of BM-BC-enhanced AD in the regional cheese industry, supporting renewable energy development and sustainability goals.Articlehttps://doi.org/10.1016/j.renene.2026.126077W7164152896enRenewable Energy0960-14811879-06822026-06-10 |
| spellingShingle | whey anaerobic digestion methane production biogas methanogenesis inhibition energy integration payback period Puno region Anaerobic Digestion and Biogas Production Biofuel production and bioconversion Composting and Vermicomposting Techniques Glen Madrigal German Mamani-Cachicatari Oscar Andrés Mendieta Menjura Jaime Martí-Herrero Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title | Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title_full | Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title_fullStr | Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title_full_unstemmed | Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title_short | Cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| title_sort | cattle manure biochar as an additive to improve methane production from cheese whey in rural areas |
| topic | whey anaerobic digestion methane production biogas methanogenesis inhibition energy integration payback period Puno region Anaerobic Digestion and Biogas Production Biofuel production and bioconversion Composting and Vermicomposting Techniques |
| topic_facet | whey anaerobic digestion methane production biogas methanogenesis inhibition energy integration payback period Puno region Anaerobic Digestion and Biogas Production Biofuel production and bioconversion Composting and Vermicomposting Techniques |
| url | https://doi.org/10.1016/j.renene.2026.126077 |
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