Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/98160
Title: The steady state anaerobic digestion of Laminaria hyperborea : effect of hydraulic residence on biogas production and bacterial community composition
Authors: Sallis, Paul J.
Caldwell, Gary S.
Hinks, Jamie
Edwards, Stephen
Issue Date: 2013
Source: Hinks, J., Edwards, S., Sallis, P. J., & Caldwell, G. S. (2013). The steady state anaerobic digestion of Laminaria hyperborea – Effect of hydraulic residence on biogas production and bacterial community composition. Bioresource Technology, 143, 221-230.
Series/Report no.: Bioresource technology
Abstract: Methane production by anaerobic digestion (AD) of macroalgae (seaweed) is a promising algal bioenergy option. Work presented here is primarily based on the AD of Laminaria hyperborea using batch and continuously stirred tank reactors. Extrapolation of data from batch studies to long term continuous reactors was unreliable. A conservative organic loading rate (OLR) of 1 g L−1 d−1 was used due to difficulties experienced in achieving steady state performance at an OLR of 1.5 g L−1 d−1. Biogas composition and methane yields (60–70%) were near to values expected from terrestrial feedstocks. Biomass washout, as imposed by the dilution rate (i.e., hydraulic residence), had considerable bearing on the biogas generation profile, particularly at >3 hydraulic residences. Inhibition of methanogen growth was linked to nutrient deficiency and potentially antimicrobial compounds associated with the feedstock. Anaerobic digestion of L. hyperborea proved feasible over extended operational periods.
URI: https://hdl.handle.net/10356/98160
http://hdl.handle.net/10220/17506
ISSN: 0960-8524
DOI: http://dx.doi.org/10.1016/j.biortech.2013.05.124
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCELSE Journal Articles

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