title: Biochemical methane potential of oil-extracted microalgae and glycerol in co-digestion with chicken litter.
abstract: The objective of this work was to evaluate the technical feasibility of using both oil-extracted microalgae (M) and glycerol (G) in co-digestion with chicken litter (CL), thereby improving biochemical methane potential (BMP). Different feedstock ratios of M (0-30%), G (0-3%) and CL (67-100%) were investigated to determine the best co-digestion condition under mesophilic conditions. According to the modified Gompertz model, the best BMP (131.1mLCH4gVSfed-1) was obtained with the triple co-digestion (M:G:CL) in a proportion of 30:3:67. This yielded a methane production rate (μm) of 3.3mLCH4gVSfed-1d-1and a lag time (λ) of 17.4d. This treatment reduced chemical oxygen demand (COD) by 91.02% and increased the methane yield 15.8% with respect to the CL control.
authors.affiliation: Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México 56230, Mexico.
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Meneses-Reyes
authors.affiliation: Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México 56230, Mexico.
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Hernández-Eugenio
authors.affiliation: Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112-1000, USA; Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA.
authors.forename: David H
authors.initials: DH
authors.lastname: Huber
authors.affiliation: Laboratorio de Biorremediación, Escuela de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27000, Coahuila, Mexico.
authors.forename: Nagamani
authors.initials: N
authors.lastname: Balagurusamy
authors.affiliation: Posgrado en Ingeniería Agrícola y Uso Integral del Agua, Universidad Autónoma Chapingo, Chapingo, Estado de México 56230, Mexico. Electronic address: t.espinosa.s@taurus.chapingo.mx.
authors.forename: Teodoro
authors.initials: T
authors.lastname: Espinosa-Solares
mesh_terms: D000085:Acetates / Q000378:metabolism; D000693:Anaerobiosis; D000818:Animals; D056804:Biofuels / Q000032:analysis; D020148:Butyric Acid / Q000378:metabolism; D002645:Chickens; D005232:Fatty Acids, Volatile / Q000032:analysis; D005990:Glycerol / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000096:biosynthesis*; D058086:Microalgae / Q000378:metabolism*; D008962:Models, Theoretical; D009821:Oils / Q000302:isolation & purification*; D025341:Principal Component Analysis; D011422:Propionates / Q000494:pharmacology; D012037:Refuse Disposal / Q000379:methods*; D014866:Waste Products
chemical_list: D000085:Acetates; D056804:Biofuels; D005232:Fatty Acids, Volatile; D009821:Oils; D011422:Propionates; D014866:Waste Products; D020148:Butyric Acid; C029658:propionic acid; D008697:Methane; D005990:Glycerol
keywords: Biodiesel residuals; Glycerol; Gompertz model; Mesophilic; Oil-extracted microalgae; VFAs profile