Technical and economical optimization of a full-scale poultry manure treatment process: total ammonia nitrogen balance

A full-scale process for the treatment of 80 tons per day of poultry manure was designed and optimized. A total ammonia nitrogen (TAN) balance was performed at steady state, considering the stoichiometry and the kinetic data from the anaerobic digestion and the anaerobic ammonia oxidation. The equip...

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Bibliographic Details
Published in:Environmental technology 2016-11, Vol.37 (22), p.2865-2878
Main Authors: Alejo-Alvarez, Luz, Guzmán-Fierro, Víctor, Fernández, Katherina, Roeckel, Marlene
Format: Article
Language:English
Subjects:
Ammonia
Ammonia - metabolism
anaerobic digestion
Animals
Bacteria - metabolism
CANON
Composting
Conversion
Cost control
Costs
Costs and Cost Analysis
Economics
full-scale treatment plant
Manure
Manures
Nitrogen
Nitrogen - metabolism
Optimization
Poultry
process optimization
Recycling
TAN balance
Waste Disposal, Fluid - economics
Waste Disposal, Fluid - methods
Water Pollutants, Chemical - metabolism
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Summary:A full-scale process for the treatment of 80 tons per day of poultry manure was designed and optimized. A total ammonia nitrogen (TAN) balance was performed at steady state, considering the stoichiometry and the kinetic data from the anaerobic digestion and the anaerobic ammonia oxidation. The equipment, reactor design, investment costs, and operational costs were considered. The volume and cost objective functions optimized the process in terms of three variables: the water recycle ratio, the protein conversion during AD, and the TAN conversion in the process. The processes were compared with and without water recycle; savings of 70% and 43% in the annual fresh water consumption and the heating costs, respectively, were achieved. The optimal process complies with the Chilean environmental legislation limit of 0.05 g total nitrogen/L.
ISSN:0959-3330
1479-487X
DOI:10.1080/09593330.2016.1167963