wherever E1 could be the elimination of TN made by N2O transformed to carbon dioxide equal once-a-year emissions, tCO2eq/a; Q may be the annual treatment volume of wastewater, m3/a; TNi is the normal yearly influent https://owainjnkj415834.blogdigy.com/getting-my-effluent-treatment-plant-indore-to-work-42755594