Comparative study of single- and two-stage fermentation of the brown seaweed Laminaria digitata

Co-digestion of Laminaria digitata with cattle manure: A unimodel simulation study of both batch and continuous experiments

“…In accordance with the present study, Guneratnam et al (2017) used L. digitata of similar anaerobic biodegradability (i.e. 308±24 and 305±9 mL/g VS in the present and previous work, respectively).…”

“…The increasing production of first-generation bioenergy, mainly using energy crops, is limited due to concerns of the competition of energy or food generation (Naik et al, 2010). While traditionally used substrates, such as agricultural residues and livestock slurries, are preferred for the second-generation bioenergy production, they are still facing several technical barriers which are associated with their efficient utilization (Guneratnam et al, 2017;Mohr and Raman, 2013). Highly productive marine biomass, such as macroalgae, is regarded as a suitable feedstock for biofuel production and has been considered as third generation biofuel (Behera et al, 2015).…”

Can acid pre-treatment enhance biohydrogen and biomethane production from grass silage in single-stage and two-stage fermentation processes?

“…When compared to hydrogen production alone, the energy recovery from sugarcane syrup through two-stage hydrogen and methane coproduction increased 6-7 fold [16]. Two-stage fermentation of the brown seaweed Laminaria digitata reduced the hydraulic retention time by 33% whilst improving the energy conversion by 9.8% as compared to single stage anaerobic digestion [17]. However, the optimal pretreatment conditions for dark fermentation and anaerobic digestion are probably different due to the different microbial community and metabolic pathways.…”

Integrated Marine Biogas: A Promising Approach towards Sustainability

“…Anaerobic co-digestion also has another benefit on the economical scale because it provides the possibility of sharing facilities and equipment, which reduces the total investment cost [28]. The co-digestion synergistic impact on biogas production takes place due to interaction between different substrates, which is correlated to the supplementation of micronutrients and trace elements or any other parameter that ultimately influences digestibility of the substrate [170,171]. For instance, a synergistic effect was recorded during co-digestion of Laminaria japonica with sewage sludge or food waste at different mixing ratios.…”