title: New energy crop giant cane (Arundo donax L.) can substitute traditional energy crops increasing biogas yield and reducing costs.
abstract: Giant cane is a promising non-food crop for biogas production. Giant cane and corn silages coming from full-scale fields were tested, in mixtures with pig slurry, for biomethane production by a continuous stirred tank lab-scale-reactor (CSTR) approach. Results indicated that giant cane produced less biomethane than corn, i.e. 174±10 N m(3) CH4 Mg(-1) TS(-1) and 245±26 N m(3) CH4 Mg(-1) TS(-1), respectively. On the other hand, because of its high field biomass production, the biogas obtainable per Ha was higher for giant cane than for corn, i.e. 12,292 N m(3) CH4 Ha(-1) and 4549 N m(3) CH4 Ha(-1), respectively. Low energetic and agronomic inputs for giant cane cultivation led to a considerable reduction in the costs of producing both electricity and biomethane, i.e. 0.50 € N m(-3) CH4(-1) and 0.81 € N m(-3) CH4(-1), and 0.10 € kW hEE(-1) and 0.19 € kW hEE(-1) for biomethane and electricity production, and for giant cane and corn mixtures respectively.
authors.affiliation: Di.S.A.A. - Gruppo Ricicla - Biomass and Bioenergy Laboratory - DiSAA, University of Milan, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Corno
authors.initials: C
authors.lastname: Luca
authors.affiliation: Di.S.A.A. - Gruppo Ricicla - Genetic Laboratory - DiSAA, University of Milan, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Pilu
authors.affiliation: Di.S.A.A. - Gruppo Ricicla - Biomass and Bioenergy Laboratory - DiSAA, University of Milan, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Fulvia
authors.initials: F
authors.lastname: Tambone
authors.affiliation: Di.S.A.A. - Gruppo Ricicla - Biomass and Bioenergy Laboratory - DiSAA, University of Milan, Via Celoria 2, 20133 Milan, Italy.
authors.forename: Barbara
authors.initials: B
authors.lastname: Scaglia
authors.affiliation: Di.S.A.A. - Gruppo Ricicla - Biomass and Bioenergy Laboratory - DiSAA, University of Milan, Via Celoria 2, 20133 Milan, Italy. Electronic address: fabrizio.adani@unimi.it.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Adani
mesh_terms: D000693:Anaerobiosis; D056804:Biofuels; D018533:Biomass; D018556:Crops, Agricultural / Q000378:metabolism*; D006109:Poaceae / Q000378:metabolism*
chemical_list: D056804:Biofuels
keywords: Arundo donax; Biogas; CP-MAS (13)C NMR; CSTR approach; Energy crop