title: Modeling ammonia removal in aerated facultative lagoons.
abstract: A mechanistic model has been developed to model ammonia removal in aerated facultative lagoons. Flow is modeled through the water column by a continuously stirred tank reactor and exchanges between the sludge layer and the water column are simulated by a solids separator. The biological model is based on an activated sludge model with reactions added for anaerobic bacterial growth and degradation of inert organic material. Results show that the model is able to predict seasonal variation in ammonia removal as well as sludge accumulation in the lagoons.
authors.affiliation: Department of Civil, Geological and Mining Engineering, Ecole Polytechnique of Montreal, P.O. Box 6079, Station Centre-Ville, Montreal, Quebec, Canada. dwight.houweling@polymtl.ca
authors.forename: C D
authors.initials: CD
authors.lastname: Houweling
authors.forename: L
authors.initials: L
authors.lastname: Kharoune
authors.forename: A
authors.initials: A
authors.lastname: Escalas
authors.forename: Y
authors.initials: Y
authors.lastname: Comeau
mesh_terms: D000332:Aerobiosis; D000641:Ammonia / Q000302:isolation & purification*; D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D019149:Bioreactors; D008954:Models, Biological; D010100:Oxygen / Q000737:chemistry / Q000378:metabolism; D012621:Seasons; D012722:Sewage / Q000737:chemistry / Q000382:microbiology*; D013997:Time Factors; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D012722:Sewage; D000641:Ammonia; D010100:Oxygen