Nitrous oxide emissions monitoring and remediation approaches during wastewater treatment using partial denitrification anammox process

Wastewater treatment plants contribute to greenhouse gas emissions through the release of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), which are produced during various treatment processes. During biological nutrient removal in wastewater treatment, processes such as activated sludge can generate N2O (a potent greenhouse gas) during total nitrogen removal. Further energy consumption in wastewater treatment plants, including electricity for aeration and pumping, also contributes to greenhouse gas emissions. The use of fossil fuels for energy generation further intensifies these emissions. Greenhouse gas emissions from wastewater treatment plants underscore the importance of adopting energy-efficient technologies, optimizing treatment processes, and implementing remedial strategies. The proposed project will evaluate greenhouse gas emissions in a BioCord biofilm technology using an advanced total nitrogen removal process called partial denitrification anammox (PdNA) and demonstrate remediation approaches under different conditions in the biological nutrient removal process. The pilot project will demonstrate the contribution of BioCord to climate change mitigation by lowering emission generation through the metabolic activities of the microorganisms within the biofilm, as well as energy and carbon footprint minimization. By reducing emissions and promoting sustainable practices, wastewater treatment plants can contribute to Ontario’s efforts to mitigate climate change and achieve environmental sustainability.

Faculty Supervisor:

Martha Dagnew

Student:

Partner:

Bishop Water Technologies Inc.

Discipline:

Engineering

Sector:

Professional, scientific and technical services

University:

The University of Western Ontario

Program: