MyJournals Home  

RSS FeedsIJERPH, Vol. 16, Pages 5023: Improving Biomethanation of Chicken Manure by Co-Digestion with Ethanol Plant Effluent (International Journal of Environmental Research and Public Health)

 
 

10 december 2019 15:00:01

 
IJERPH, Vol. 16, Pages 5023: Improving Biomethanation of Chicken Manure by Co-Digestion with Ethanol Plant Effluent (International Journal of Environmental Research and Public Health)
 


As the global production of chicken manure has steadily increased, its proper management has become a challenging issue. This study examined process effluent from a bioethanol plant as a co-substrate for efficient anaerobic digestion of chicken manure. An anaerobic continuous reactor was operated in mono- and co-digestion modes by adding increasing amounts of the ethanol plant effluent (0%, 10%, and 20% (v/v) of chicken manure). Methanogenic performance improved significantly in terms of both methane production rate and yield (by up to 66% and 36%, respectively), with an increase in organic loading rate over the experimental phases. Correspondingly, the specific methanogenic activity was significantly higher in the co-digestion sludge than in the mono-digestion sludge. The reactor did not suffer any apparent process imbalance, ammonia inhibition, or nutrient limitation throughout the experiment, with the removal of volatile solids being stably maintained (56.3–58.9%). The amount of ethanol plant effluent appears to directly affect the rate of acidification, and its addition at ≥20% (v/v) to chicken manure needs to be avoided to maintain a stable pH. The overall results suggest that anerobic co-digestion with ethanol plant effluent may provide a practical means for the stable treatment and valorization of chicken manure.


 
53 viewsCategory: Medicine, Pathology, Toxicology
 
IJERPH, Vol. 16, Pages 5024: Combining Monte Carlo Simulation and Bayesian Networks Methods for Assessing Completion Time of Projects under Risk (International Journal of Environmental Research and Public Health)
IJERPH, Vol. 16, Pages 5022: Prevalence and Sources of Second-Hand Smoking Exposure among Non-Smoking Pregnant Women in an Urban Setting of Vietnam (International Journal of Environmental Research and Public Health)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Toxicology


Copyright © 2008 - 2020 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten