Journalartikel

Jahr der Veröffentlichung: 2019

Seiten: 131-140

Zeitschrift: Waste Management

Bandnummer: 88

ISSN: 0956-053X

DOI Link: https://doi.org/10.1016/j.wasman.2019.03.034

Verlag: Elsevier

Abstract: 
The current research investigated the possibility of valorizing cocoa pods residues through anaerobic digestion and the possibility of increasing the biogas yield by hydrothermal pretreatment. Using a central composite surface response methodology, the effect of temperature and reaction time on the hydrothermal pretreatment process was studied. Temperature and reaction time was varied between 150-220 degrees C and 5-15 min respectively. The result show that untreated cocoa pods residues has a biogas potential of 357 l(N)/kgVS and a methane content of 55%. The effect of hydrothermal pretreatment on the biogas yield was diverse. Severities below 3.0 resulted in increased biogas yield. However, higher severity resulted in lower biogas yield. The optimum biogas yield (526.38 l(N)/kgVS) was obtained at 150 degrees C and 15 min, which represents a severity of 2.65. (C) 2019 Elsevier Ltd. All rights reserved.

Harvard-Zitierstil: Antwi, E., Engler, N., Nelles, M. and Schuech, A. (2019) Anaerobic digestion and the effect of hydrothermal pretreatment on the biogas yield of cocoa pods residues, Waste Management, 88, pp. 131-140. https://doi.org/10.1016/j.wasman.2019.03.034

APA-Zitierstil: Antwi, E., Engler, N., Nelles, M., & Schuech, A. (2019). Anaerobic digestion and the effect of hydrothermal pretreatment on the biogas yield of cocoa pods residues. Waste Management. 88, 131-140. https://doi.org/10.1016/j.wasman.2019.03.034