This study aimed to investigate the potential of giant reed for biomethane production by examining the influence of harvest time and frequency on the Biochemical Methane Potential (BMP), the kinetics of biomethane accumulation in batch reactors and the expected methane yield per hectare. The crop was cut at five different times, regrowths from early cuts were harvested in autumn and BMP of each cut was assessed. The highest BMP (392 NL kg VS−1) and the best kinetics of methane production were associated to juvenile traits of the crop. By coupling the early cuts with the corresponding regrowths (double harvest), the dry biomass (from 35 to 40 Mg ha−1) equaled that obtained by a single cut at end of the season (38 Mg ha−1), while the methane yield per hectare (11,585–12,981 Nm3 ha−1) exceeded up to 35% the methane produced with a single harvest at crop maturity (9452 Nm3 ha−1).

Suitability of giant reed (Arundo donax L.) for anaerobic digestion: Effect of harvest time and frequency on the biomethane yield potential

RAGAGLINI, Giorgio;DRAGONI, FEDERICO;BONARI, Enrico
2014-01-01

Abstract

This study aimed to investigate the potential of giant reed for biomethane production by examining the influence of harvest time and frequency on the Biochemical Methane Potential (BMP), the kinetics of biomethane accumulation in batch reactors and the expected methane yield per hectare. The crop was cut at five different times, regrowths from early cuts were harvested in autumn and BMP of each cut was assessed. The highest BMP (392 NL kg VS−1) and the best kinetics of methane production were associated to juvenile traits of the crop. By coupling the early cuts with the corresponding regrowths (double harvest), the dry biomass (from 35 to 40 Mg ha−1) equaled that obtained by a single cut at end of the season (38 Mg ha−1), while the methane yield per hectare (11,585–12,981 Nm3 ha−1) exceeded up to 35% the methane produced with a single harvest at crop maturity (9452 Nm3 ha−1).
2014
File in questo prodotto:
File Dimensione Formato  
Art-1_BITE_Suitability of giant reed for anaerobic digestion Effect of harvest time and frequency on the biomethane yield potential.pdf

solo utenti autorizzati

Tipologia: Documento in Post-print/Accepted manuscript
Licenza: Licenza non conosciuta
Dimensione 1.41 MB
Formato Adobe PDF
1.41 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11382/419812
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 96
social impact