Evaluation of biogas production from cocoa husks and mucilage
DOI:
https://doi.org/10.24054/raaas.v15i1.2891Keywords:
Coca pod husks, cocoa mucilage, biogas, co-digestion, wasteAbstract
The cocoa industry generates a significant amount of waste during the production process, notably cocoa pod husks (CPH) and cocoa mucilage exudate (CME) among them. These residues can be utilized as substrates in anaerobic digestion systems for biogas production due to their high organic content. In this regard, the objective of this study was to evaluate biogas production from these residues. To achieve this, the biochemical methane potential and semi-continuous production in anaerobic digesters were determined. As results, the potential of EMC was significantly higher compared to CVC and its co-digestion; A maximum methane yield of 636.4 NmLCH4/g·VS, 114.3 NmLCH4/g·VS, and 345.7 NmLCH4/g·VS were obtained, respectively. In semi-continuous biogas production, biogas yields of 294.9 mL/gVS·d were obtained with the CVC and 462.2 mL/gVS·d with the EMC. In addition, pH stability problems were identified in the system with EMC, although significant biogas yields were obtained. This study emphasizes the importance of adopting sustainable practices in cocoa waste management to mitigate environmental pollution through anaerobic digestion systems.
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References
APHA (2017). Standard Methods for the Examination of Water and Wastewater. 23th edition. American Public Health Association, Washington, D.C.
Calbry, A. & Schildhauer, T. (2020). Direct Methanation of Biogas—Technical Challenges and Recent Progress. Frontiers in Energy Research. 8, 570887. DOI: https://doi.org/10.3389/fenrg.2020.570887 DOI: https://doi.org/10.3389/fenrg.2020.570887
Cámara de Comercio del Magdalena Medio y Nordeste Antioqueño. (2018). Concepto económico. Sector cacao. Recuperado de: https://ccmmna.org.co/wp-content/uploads/2020/08/7.1.2-CONCEPTO-ECONOMICO-2018.pdf
Mariatti, F., Gunjevic V., Boffa, L. & Cravotto, G. (2021). Process intensification technologies for the recovery of valuable compounds from cocoa by-products. Innovative Food Science & Emerging Technologies. 68, 102601. DOI: https://doi.org/10.1016/j.ifset.2021.102601 DOI: https://doi.org/10.1016/j.ifset.2021.102601
MADR, Ministerio de Agricultura y Desarrollo Rural. (2021). Cadena de cacao. Recuperado de: https://sioc.minagricultura.gov.co/Cacao/Documentos/2021-03-31%20Cifras%20Sectoriales.pdf
Porto de Souza, L., Valladares, K., Bittencourt, G., Murawski, A., Sarmiento, Z., Zwiercheczewski de Oliveira, P., Vinicius de Melo, G. & Soccol, C. (2022). Added-value biomolecules’ production from cocoa pod husks: A review. Bioresource Technology. 344 (B), 126252. DOI: https://doi.org/10.1016/j.biortech.2021.126252 DOI: https://doi.org/10.1016/j.biortech.2021.126252
Tabarez, K. (2023). Evaluación de extracción de pectinas y producción de biogás a partir de los residuos generados en la obtención de cacao de la asociación ACEFUVER (Tesis de pregrado). Universidad de Antioquia, Carepa, Antioquia, Colombia. Disponible en: https://bibliotecadigital.udea.edu.co/handle/10495/35801
Uddin, M., Rahman, M., Taweekun, J., Techato, K., Mofijur, M. & Rasul, M. (2019). Enhancement of biogas generation in up-flow sludge blanket (UASB) biorreactor from palm oil mill effluent (POME). Energy Procedia. 160, 670-676. DOI: https://doi.org/10.1016/j.egypro.2019.02.220 DOI: https://doi.org/10.1016/j.egypro.2019.02.220
Unidad de Gestión de Riesgos Agropecuarios. (2020). Ficha de inteligencia: Cacao. Finagro. Recuperado de: https://www.finagro.com.co/sites/default/files/ficha_de_inteligencia_-_cacao.pdf
Valladares, K., Porto de Souza, L., & Soccol, C. (2022). A biorefinery approach for pectin extraction and second-generation bioethanol production from cocoa pod husk. Bioresource Technology. 346, 126635. DOI: https://doi.org/10.1016/j.biortech.2021.126635 DOI: https://doi.org/10.1016/j.biortech.2021.126635
Vriesmann, L., Dias de Mello, R., & Petkowicz, C. (2011). Cacao pod husks (Theobroma cacao L.): Composition and hot-water-soluble pectins. Industrial Crops and Products. 34 (1), 1173-1181. DOI: https://doi.org/10.1016/j.indcrop.2011.04.004 DOI: https://doi.org/10.1016/j.indcrop.2011.04.004
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