Efficient Nitrification and Low-Level N <sub>2</sub> O Emission in a Weakly Acidic Bioreactor at Low Dissolved-Oxygen Levels Are Due to Comammox
Deyong Li, Fang Fang, Guoqiang Liu
Abstract
Nitrification in wastewater treatment is an important process for eutrophication control and an emission source for the greenhouse gas N 2 O. The nitrifying process is usually operated at a slightly alkaline pH and high DO (>2 mg/liter) to ensure efficient nitrification.
Topics & Concepts
NitrificationBioreactorWastewaterEnvironmental chemistryChemistryOxygenEutrophicationSewage treatmentActivated sludgeEnvironmental scienceNitrifying bacteriaEnvironmental engineeringPulp and paper industryNitrogenNutrientOrganic chemistryEngineeringWastewater Treatment and Nitrogen RemovalMicrobial Community Ecology and PhysiologyAmmonia Synthesis and Nitrogen Reduction