New Small Scale Bioreactor System for the Determination of the Biochemical Methane Potential
- 106 Downloads
A small scale bioreactor was designed and built to investigate the amount of biogas, and, specifically, methane, produced from different sources.
Comparative studies between the system designed and a standard type apparatus were performed using two substrates, fish offal and grass cuttings.
The specific methane potentials of the substrates, for the small scale batch reactor and the standard system, respectively, were 78.8 ± 23.5 mL/gFM (89.4 ± 26.7 NmL/goDM) and 76.6 ± 13.7 NmL/gFM (86.9 ± 15.5 NmL/goDM) for the grass, and 20.8 ± 1.7 NmL/gFM (88.2 ± 1.5 NmL/goDM) and 15.2 ± 6.4 NmL/gFM (64.9 ± 27.3 NmL/goDM) for the fish offal. The values determined using the two different apparatus types were not significantly different (p > 0.05).
Whereas lab equipment for substrate analysis, such as determination of the total solids and volatile solids content, is available in most chemistry and biochemistry labs, the biomethane potential test is very specific for biogas technology. The major significance of this work is that the new bioreactor system, which provides similar levels of accuracy as more conventional laboratory type systems, is produced from inexpensive, easily accessible components.
KeywordsBiogas Biochemical methane potential Biofuels Anaerobic digestion
- 1.Hamilton, D.W.: Anaerobic Digestion of Animal Manures: Methane Production Potential of Waste Materials. Oklahoma Coorperative Extension Service, Stilwater (2013)Google Scholar
- 3.Moody, L., Burns, R., Spajic, R., Wu-haan, W.: Use of Biochemical Methane Potential (BMP) Assays for Predicting and Enhancing Anaerobic Digester Performance. In: Agricultural and Biosystems Engineering Conference Proceedings and Presentations (2009)Google Scholar
- 5.Nistor, M.: 2nd Conference on Monitoring and Process Control of Anaerobic Digestion Plants. In: Bioprocess Control, Leipzig (2015)Google Scholar
- 7.Straka, F., Jenicek, P., Zabranska, J., Dohanyos, M., Kuncarova, M.: Anaerobic fermentation of biomass and wastes with respect to sulfur and nitrogen contents in treated materials. In: Eleventh International Waste Management and Landfill Symposium (2007)Google Scholar
- 10.Angelidaki, I., Alves, M., Bolzonella, D., Borzacconi, L., Campos, J.L., Guwy, A.J., Kalyuzhnyi, S., Jenicek, P., Lier, J.B.: Defining the biomethane potential (BMP) of solid organic wastes and energy crops: a proposed protocol for batch assays. Water Sci. Technol. 59(4), 929–934 (2009)Google Scholar
- 11.Helffrich, D., Oechsner, H.: The Hohenheim Biogas Yield Test. Hohenheim University, Stuttgart (2003)Google Scholar
- 16.VDI: VDI-RICHTLINIEN: Fermentation of organic materials. Characterisation of the substrate sampling, collection of material data, fermentation tests (2006)Google Scholar
- 17.Watkins, C.D.: The Effect of Cutting Interval on the Leafiness of Some Tropical Grasses in the Wet and Dry Seasons. Imperial College of Tropical Agriculture, Trinidad (1957)Google Scholar