Paper details

Title:

Biomethane Production from Giant Reed Biomass Under Different Harvest Times and Fungal Pretreatment

Author(s):

Piccitto, A., Ciaramella, B.R., Schillaci, L., Patanè, C., Cosentino, S.L., Testa, G.

Document(s):

Abstract:

Giant reed (Arundo donax L.), a lignocellulosic, perennial, rhizomatous grass proposed as an important bioenergy crop for advanced biofuel in the Mediterranean area, at harvest presents a high degree of humidity (>50%) which makes it suitable to advanced biomethane production. In the lignocellulosic crops a pretreatment step is necessary to overcome lignocellulosic recalcitrance and to enhance biomethane production. Among all pretreatments, fungal pretreatment is one of the most promising methods due to the ability of selective fungi, particularly white rot fungi, to remove lignin with minimum losses of cellulose and hemicellulose through the activity of ligninolytic enzymes. The present study evaluated the duration of fungal pretreatment (30 and 50 days), using Pleurotus ostreatus and Irpex lacteus, of giant reed obtained from two different harvest time (autumn and winter) on biomass composition and biomethane production after anaerobic digestion. The fungal pretreatment using P. ostreatus showed an increase in biomethane production, up to 133 Nml g-1 VS for winter harvest time biomass pretreated for 30 days. By contrast, I. lacteus pretreatment reported a biomethane production lower than untreated biomass. The pretreatment of 50 days, instead, determined a decrease in biomethane production in all pretreated biomass.

Keywords:

lignocellulosic biomass, biomethane, Arundo donax L., white rot fungi, fungal pretreatment

Topic:

Biomass Conversion for Bioenergy

Subtopic:

Anaerobic digestion for biogas and biomethane production

Event:

31st European Biomass Conference and Exhibition

Session:

4CV.10.4

Pages:

752 - 755

ISBN:

978-88-89407-23-3

Paper DOI:

10.5071/31stEUBCE2023-4CV.10.4

Price:

FREE