Systems and methods for controlling nitrous oxide production in wastewater treatment facilities

A method for controlling nitrous oxide production in a wastewater treatment facility in which wastewater is treated with microbes in an anoxic zone and an aerobic zone, the method comprising:

• determining an amount of ammonium in the aerobic zone;
• determining an amount of at least two nitrogen compounds in the aerobic zone, the at least two nitrogen compounds including nitrite and hydroxylamine;
• determining an amount of at least one of total organic carbon (TOC) and chemical oxygen demand (COD) in the aerobic zone;
• calculating a first value that represents a comparison of the determined amount of ammonium and the determined amount of the nitrite such that the first value is indicative of relative amounts of the ammonium and the nitrite in the aerobic zone;
• comparing the calculated first value to a first threshold value;
• calculating a second value that is indicative of relative amounts of (a) the at least one of TOC and COD and (b) the hydroxylamine in the aerobic zone;
• comparing the calculated second value to a second threshold value;
• based on both the comparing steps, performing at least one of (a) displaying a notification on a display;
• and (b) taking one or more corrective actions to change a system parameter of the wastewater treatment facility.