title: Potential use of the facultative halophyte Chenopodium quinoa Willd. as substrate for biogas production cultivated with different concentrations of sodium chloride under hydroponic conditions.
abstract: This project analyses the biogas potential of the halophyte Chenopodium quinoa Willd. In a first approach C. quinoa was grown with different concentrations of NaCl (0, 10 and 20 ppt NaCl) and the crop residues were used as substrate for biogas production. In a second approach, C. quinoa was grown with 0, 10, 20 and 30 ppt NaCl under hydroponic conditions and the fresh biomass was used as substrate. The more NaCl is in the culture medium, the higher the sodium, potassium, crude ash and hemicellulose content in the plant tissue whereas the calcium, sulfur, nitrogen and carbon content in the biomass decrease. According to this study, it is possible to produce high yields of methane using biomass of C. quinoa. The highest specific methane yields were obtained using the substrate from the plants cultivated at 10 and 20 ppt NaCl in both experiments.
authors.affiliation: Institute of Botany, Leibniz University Hannover, Herrenhäuserstr. 2, D-30419 Hannover, Germany; Facultad de Agronomía, Universidad de San Carlos de Guatemala, Guatemala.
authors.forename: Ariel E
authors.initials: AE
authors.lastname: Turcios
authors.affiliation: Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Appelstr. 9a, D-30167 Hannover, Germany.
authors.forename: Dirk
authors.initials: D
authors.lastname: Weichgrebe
authors.affiliation: Institute of Botany, Leibniz University Hannover, Herrenhäuserstr. 2, D-30419 Hannover, Germany. Electronic address: Jutta.Papenbrock@botanik.uni-hannover.de.
authors.forename: Jutta
authors.initials: J
authors.lastname: Papenbrock
mesh_terms: D056804:Biofuels; D018533:Biomass; D027465:Chenopodium quinoa / Q000737:chemistry*; D003246:Conservation of Energy Resources / Q000379:methods; D018527:Hydroponics; D008697:Methane / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D012965:Sodium Chloride / Q000737:chemistry*
chemical_list: D056804:Biofuels; D012965:Sodium Chloride; D008697:Methane; D011188:Potassium
keywords: Anaerobic digestion; Chenopodium quinoa; Elemental analysis; Halophyte plants; Renewable energy