Title:
Single Autumnal Harvest Provides Higher Biomass and Methane Yield than Double Harvests of Giant Reed (Arundo Donax L.)
Author(s):
Vasmara, C., Marchetti, R., Cianchetta, S., Galletti, S., Ceotto, E.
Document(s):
Paper
Poster
Abstract:
The effect of three different harvest strategies on biomass and CH4 yields from giant reed (Arundo donax L.) was investigated. Harvest strategies were: double harvest (DH1, June and September; DH2, July and September), single harvest (SH, September). The field experiment was repeated for 2 years. Dry milled giant reed biomass was used as feedstock in laboratory tests of anaerobic digestion, in batch, static, mesophilic conditions. Compared to SH, biomass yield for DH1 ranged from -25% to -40%, while DH2 ranged from -5% to -29%. As far as CH4 yield per hectare is concerned, DH1 and DH2 were on average, respectively, -26% and -11%, compared to SH. As the specific CH4 yield of giant reed did not significantly differ between harvest strategies, the advantage of the SH in CH4 production relies on the higher biomass production per hectare. The CH4 yield per hectare using giant reed as feedstock appears comparable with that obtainable from maize silage. Our results indicate that a SH should be adopted to enhance biomass and biogas production per hectare from giant reed.
Keywords:
biogas, harvesting, methane, Arundo donax
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas and biomethane production
Event:
27th European Biomass Conference and Exhibition
Session:
2CV.8.32
Pages:
987 - 991
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-2CV.8.32
Price:
FREE
