Title:
Duckweed as Innovative Feedstock for Biogas Production - A Comparison of Two Fermenter Concepts
Author(s):
Schumacher, B., Reinelt, T., Liebetrau, J.
Document(s):
Paper
Poster
Abstract:
The goal of this study was to investigate the influence of the fermenter concepts on the biogas production from duckweed. A fixed bed reactor (FBR) and a continuous stirred tank reactor (CSTR) in laboratory scale, both continuously running, were tested with regards to technical feasibility and biogas production. The duckweed was co-fermented with cattle slurry. The biofilm of the FBR had probably a stabilizing influence during a phase of reduced reactor volume, while the CSTR showed a decline in the biogas production. Over the last 25 day of the trial each reactor produced 273 ml STP /gVS biogas. The methane content in the FBR was 63.8 % and 63.1 % in the CSTR. Theoretical methane potentials were calculated based on nutritional value analysis and compared to dis-/ continuous digestion tests.
Keywords:
anaerobic digestion, analysis, biogas, pretreatment, chemical composition, aquatic plants
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas production
Event:
25th European Biomass Conference and Exhibition
Session:
2CV.4.19
Pages:
911 - 913
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2CV.4.19
Price:
FREE
