Title:
Characterization and Kinetic Study of Energy Crops and Biomass of Microalgae Indigenous in Southern Europe for Biogas
Author(s):
Parralejo, A.I., Royano, L., González, J., González, J.F.
Document(s):
Paper
Poster
Abstract:
Sweet sorghum and triticale are considered energy crops with lower water requirements to growth and as good substrates to anaerobic co-digestion with microalgae biomass, together they make an optimal nutrient balance. Corn stover is a biomass residue in Southern Europe and it has excellent properties as co-substrate in anaerobic co-digestion. Two anaerobic co-digestion experiments in semi-continuous regime were investigated with four (experiment 1) and five (experiment 2) substrates for different Organic Load Rate (OLR). Previously, batch experiments were evaluated for substrates in mono-digestion and a kinetic study was performed. The higher methane yield of the co-digestion was 210 NL CH4 kg VSfeed-1 and it corresponded to OLR of 1 g VS L-1d-1 for experiment 1. VFA/Alkalinity ratio, VFA concentrations and N-NH4 concentrations for experiments were below of the suggested limits for a stable anaerobic co-digestion process.
Keywords:
biogas, energy crops, methane, microalgae, feedstock, corn stover
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas production
Event:
24th European Biomass Conference and Exhibition
Session:
2CV.3.75
Pages:
954 - 959
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2CV.3.75
Price:
FREE
