Journal
CHEMICAL ENGINEERING & TECHNOLOGY
Volume 41, Issue 4, Pages 671-679Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201700482
Keywords
Ammonia inhibition; Ammonium chloride; Anaerobic digestion; Compound-specific stable isotope analysis
Categories
Funding
- Natural Science Fund for Colleges and Universities in Jiangsu Province [16KJB610006]
- Doctoral Scientific Research Foundation of Jiangsu Normal University [15XLR026]
- project ISOTOP-BIOGAS by the Federal Ministry of Food and Agriculture via the Fachagentur Nachwachsende Rohstoffe e.V. (FNR), Germany [FKZ 22013013, FKZ 22026712]
Ask authors/readers for more resources
Anaerobic digestion of poultry manure poses many challenges due to ammonia inhibition by nitrogen-containing compounds. Here, the effect of NH4Cl or urea-induced inhibition was investigated in bioreactors fed with maize silage or cellulose and compared to previous experiments with chicken manure as ammonia source. The hydrogen and carbon stable isotope compositions of biogas samples were evaluated to assess the shifts in predominant methanogenic pathways during increasing ammonia inhibition. Due to the higher free ammonia concentrations, stronger inhibition was observed in the urea added reactors compared to the NH4Cl treated ones. Collectively, the results suggested that ammonium salts are not really appropriate to investigate ammonia inhibition during anaerobic digestion of manure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available