Effect of alkaline pre-treatment on the anaerobic biodegradability of coffee husk





Anaerobic digestion, Alkaline pre-treatment, Methane yield, Lignocellulosic biomass, Polyphenols


The present paper deals with the mono-digestion of coffee husk during the operation of batch reactors and semi-continuous stirred tank reactor (S-CSTR) using both pre-treated residual at 3% Ca(OH)2 and without pre-treatment. The semi-continuous operation was carried out in 4 stages at different organic loading rate (OLR, [gVS L -1 d -1]) and hydraulic retention time (HRT, [d]) (OLR:HRT) ratios (0.1:90, 0.2:90, 0.2:45 and 0.2:30). As a result of the pre-treatment, up to 223% of the organic matter solubilisation was obtained. However, pre-treatment did not provide better results in biodegradability, observing a negative trend in methane yield when operating in S-CSTR, due to the accumulation of compounds from the fractionation of the lignin as is the case of polyphenols. The operation was further developed using the residual without pre-treatment. The highest methane yield was obtained at 45:0.2 when using the residual without pre-treatment being with 277 mLCH4 gVS-1 , for a methane productivity of 1.1 L L-1 d -1. When implementing the 30:0.2 ratio, a biomass washout was observed in the system, so it is recommended to operate at low OLR and high HRT when treating solid coffee wastes.

= 165 veces | PDF
= 191 veces|


Download data is not yet available.

Author Biographies

Kathy De la Cruz-Martorell, Technological University of Havana "José Antonio Echeverría" (CUJAE)

Professor, Faculty of Chemical Engineering.

Yunet Gómez-Salcedo, Technological University of Havana "José Antonio Echeverría" (CUJAE)

Professor, Faculty of Chemical Engineering.

Yainet Santander, Technological University of Havana "José Antonio Echeverría" (CUJAE)

Facultad de Ingeniería Química

David Javier Catagua Mera, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE)

Escuela Superior Politécnica del Litoral (ESPOL).

Julio Cesar Dustet Mendoza, Technological University of Havana "José Antonio Echeverría" (CUJAE)

Professor, Faculty of Chemical Engineering.

Ileana Pereda-Reyes, Technological University of Havana "José Antonio Echeverría" (CUJAE)

Research Director. Faculty of Chemical Engineering.



P. S. Murthy and M. M. Naidu, “Sustainable management of coffee industry by-products and value addition—a review,” Resources, Conservation and Recycling, vol. 66, pp. 45–58, Sep. 2012.

G. Corro, L. Paniagua, U. Pal, F. Bañuelos, and M. Rosas, “Generation of biogas from coffee-pulp and cow-dung co-digestion: Infrared studies of postcombustion emissions,” Energy Conversion and Management, vol. 74, pp. 471–481, Oct. 2013.

M. Selvamurugan, P. Doraisamy, and M. Maheswari, “An integrated treatment system for coffee processing wastewater using anaerobic and aerobic process,” Ecological Engineering, vol. 36, no. 12, pp. 1686–1690, Dec. 2010.

S. Bolado, C. Toquero, J. Martín, R. Travaini, and P. A. García, “Effect of thermal, acid, alkaline and alkaline-peroxide pretreatments on the biochemical methane potential and kinetics of the anaerobic digestion of wheat straw and sugarcane bagasse,” Bioresource Technology, vol. 201, pp. 182–190, Feb. 2016.

C. Sambusiti, F. Monlau, E. Ficara, H. Carrère, and F. Malpei, “A comparison of different pre-treatments to increase methane production from two agricultural substrates,” Applied Energy, vol. 104, pp. 62–70, Apr. 2013.

M. Schroyen, H. Vervaeren, K. Raes, and S. W. V. Hulle, “Modelling and simulation of anaerobic digestion of various lignocellulosic substrates in batch reactors: Influence of lignin content and phenolic compounds ii,” Biochemical Engineering Journal, vol. 134, pp. 80–87, Jun. 2018.

A. K. Chandel, S. S. da Silva, and O. V. Singh, “Detoxification of lignocellulosic hydrolysates for improved bioethanol production,” in Biofuel Production-Recent Developments and Prospects, M. A. D. Santos, Ed. InTech, 2011, pp. 225–246.

M. Taherdanak and H. Zilouei, “Improving biogas production from wheat plant using alkaline pretreatment,” Fuel, vol. 115, pp. 714–719, Jan. 2014.

APHA and AWWA and WEF, Standard Methods for Examination of Water and Wastewater, 21st ed. Washington DC, USA: APHA and AWWA and WEF, 2005.

Standard Test Method for Acid-Insoluble Lignin in Wood, ASTM D1106-96, 2013.

J. Honorato, F. Apolinar, and G. Colot, “Composición lignocelulósica de Pinus ayacahuite Ehrenb. ex Schltdl., P. leiophylla Schlecht. y Cham. y P. herrerae Martínez,” Revista Mexicana de Ciencias Forestales, vol. 7, July 2006. [Online]. Available: https://doi.org/10.29298/rmcf.v7i34.82l

Fermentation of organic materials - Characterization of the substrate, sampling, collection of material data, fermentation tests, VDI 4630, 2006.

E. M. García, I. Fernández, and A. Fuentes. (2015) Determinación de polifenoles totales por el método de folin-ciocalteu. [Online]. Available: http://hdl.handle.net/10251/52056

U. Lossie and P. Pütz, “Targeted control of biogas plants with the help of FOS/TAC,” Laboratory Analysis Titration Fos/Tac, Hach Lange, Tech. Rep. TIM 840/845, 2009.

M. D. Ulsido, G. Zeleke, and L. Meng, “Biogas potential assessment from a coffee husk: an option for solid waste management in gidabo watershed of ethiopia,” 15th Internal Scientific Conference Engineering for Rural Development, Jelgava, Latvia, 2016.

F. Shemekite and et al., “Coffee husk composting: an investigation of the process using molecular and non-molecular tools,” Waste Manag., vol. 34, no. 3, March 2014. [Online]. Available: https://doi.org/10.1016/j.wasman.2013.11.010

A. K. Kivaisi, “Pretreatment of robusta coffee hulls and co-digestion with cow-dung for enhanced anaerobic digestion,” Tanz. J. Sci., vol. 28, no. 2, 2002. [Online]. Available: http://dx.doi.org/10.4314/tjs.v28i2.18349

T. Amon and et al., “Biogas production from maize and dairy cattle manure—influence of biomass composition on the methane yield,” Agri. Ecosyst. Environ., vol. 118, no. 1-4, January 2007. [Online]. Available: https://doi.org/10.1016/j.agee.2006.05.007

M. Koyama and et al., “Effect of alkaline pretreatment on mesophilic and thermophilic anaerobic digestion of a submerged macrophyte: inhibition and recovery against dissolved lignin during semi-continuous operation,” Bioresource Technology, vol. 238, August 2017. [Online].Available: https://doi.org/10.1016/j.biortech.2017.04.046

J. F. Calzada and et al., “Biogas from coffee pulp,” Biotechnology Letters, vol. 3, no. 12, December 1981. [Online]. Available: https://doi.org/10.1007/BF00134849

S. Khatri and et al., “Synergistic effect of alkaline pretreatment and fe dosing on batch anaerobic digestion of maize straw,” Applied Energy, vol. 158, November 15 2015. [Online]. Available: https://doi.org/10.1016/j.apenergy.2015.08.045

S. Menardo, V. Cacciatore, and P. Balsari, “Batch and continuous biogas production arising from feed varying in rice straw volumes following pre-treatment with extrusion,” Bioresource Technology, vol. 180, March 2015. [Online]. Available: https://doi.org/10.1016/j.biortech.2014.12.104

W. Mussoline, G. Esposito, P. Lens, A. Spagni, and A. Giordano, “Enhanced methane production from rice straw co-digested with anaerobic sludge from pulp and paper mill treatment process,” Bioresource Technology, vol. 148, November 2013. [Online]. Available: https://doi.org/10.1016/j.biortech.2013.08.107

L. Janke and et al., “Comparison of start-up strategies and process performance during semi-continuous anaerobic digestion of sugarcane filter cake co-digested with bagasse,” Waste Management, vol. 48, February 2016. [Online]. Available: https://doi.org/10.1016/j.wasman.2015.11.007

M. H. Gerardi. (2003) The microbiology of anaerobic digesters. [Wiley Library]. [Online]. Available: https://doi.org/10.1002/0471468967




How to Cite

De la Cruz-Martorell, K., Gómez-Salcedo, Y., Santander, Y., Catagua Mera, D. J., Dustet Mendoza, J. C., & Pereda-Reyes, I. (2019). Effect of alkaline pre-treatment on the anaerobic biodegradability of coffee husk. Revista Facultad De Ingeniería Universidad De Antioquia, (92), 36–41. https://doi.org/10.17533/udea.redin.20190516

Most read articles by the same author(s)