Velho, V F Effect of COD/N ratio on N [electronic resource] - Water science and technology : a journal of the International Association on Water Pollution Research Dec 2017 - 3452-3460 p. digital Publication Type: Journal Article ISSN: 0273-1223 Standard No.: 10.2166/wst.2017.502 doi Subjects--Topical Terms: AerobiosisAmmoniaBiological Oxygen Demand AnalysisBioreactors--microbiologyDenitrificationHeterotrophic ProcessesNitrificationNitritesNitrogen--chemistryNitrous Oxide--analysisSewage--microbiologyWaste Disposal, Fluid--methods