title: Thermophilic anaerobic digester performance under different feed-loading frequency.
abstract: The effect of feed-loading frequency on digester performance was studied on a thermophilic anaerobic digester with a working volume of 27.43 m(3). The digester was fed 0.93 m(3) of chicken-litter slurry/d, containing 50.9 g/L chemical oxygen demand. The treatments were loading frequencies of 1, 2, 6, and 12 times/d. The hourly pH, biogas production, and methane percent of the biogas were less stable at lower feed frequencies. There was no statistical difference among treatments in methanogenic activity. The feed-loading frequency of six times per day treatment provided the greatest biogas production.
authors.affiliation: Division of Agricultural, Consumer, Environmental, and Outreach Programs, West Virginia State University, Institute, WV 25112-1000, USA.
authors.forename: John
authors.initials: J
authors.lastname: Bombardiere
authors.forename: Teodoro
authors.initials: T
authors.lastname: Espinosa-Solares
authors.forename: Max
authors.initials: M
authors.lastname: Domaschko
authors.forename: Mark
authors.initials: M
authors.lastname: Chatfield
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008697:Methane / Q000378:metabolism*
chemical_list: D008697:Methane