title: Technical and economical optimization of a full-scale poultry manure treatment process: total ammonia nitrogen balance.
abstract: 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.
authors.affiliation: a Departamento de Ingeniería Química , Universidad de Concepción , Concepción , Chile.
authors.forename: Luz
authors.initials: L
authors.lastname: Alejo-Alvarez
authors.affiliation: a Departamento de Ingeniería Química , Universidad de Concepción , Concepción , Chile.
authors.forename: Víctor
authors.initials: V
authors.lastname: Guzmán-Fierro
authors.affiliation: a Departamento de Ingeniería Química , Universidad de Concepción , Concepción , Chile.
authors.forename: Katherina
authors.initials: K
authors.lastname: Fernández
authors.affiliation: a Departamento de Ingeniería Química , Universidad de Concepción , Concepción , Chile.
authors.forename: Marlene
authors.initials: M
authors.lastname: Roeckel
mesh_terms: D000641:Ammonia / Q000378:metabolism; D000818:Animals; D001419:Bacteria / Q000378:metabolism; D003365:Costs and Cost Analysis; D008372:Manure; D009584:Nitrogen / Q000378:metabolism; D011200:Poultry; D059027:Recycling; D014865:Waste Disposal, Fluid / Q000191:economics* / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000378:metabolism
chemical_list: D008372:Manure; D014874:Water Pollutants, Chemical; D000641:Ammonia; D009584:Nitrogen
keywords: CANON; TAN balance; anaerobic digestion; full-scale treatment plant; process optimization