Omima Musa Mohmed Abusil

PhD Overview

NO dismutation is a microbiological mechanism that converts nitric oxide (NO) straight into dinitrogen gas (N₂) and oxygen (O₂), without producing nitrous oxide (N₂O). In sewage sludge treatment, particular bacteria can combine NO dismutation with anaerobic methane oxidation, allowing the internally created oxygen to fuel further metabolic stages. This synergy not only allows for efficient nitrogen removal, but it also promotes anaerobic digestion, which leads to higher biogas production. The biogas, predominantly methane, can be recovered and used to generate heat or power, allowing for energy recovery during the treatment process. Wastewater treatment systems that combine NO dismutation with biogas harvesting can minimize greenhouse gas emissions, lower operating energy demands, and convert sludge management into a source of renewable energy.