Thermophilic anaerobic digester performance under different feed-loading frequency.
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.
Bombardiere
John
J
Division of Agricultural, Consumer, Environmental, and Outreach Programs, West Virginia State University, Institute, WV 25112-1000, USA.
Espinosa-Solares
Teodoro
T
Domaschko
Max
M
Chatfield
Mark
M
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*
D008697:Methane