In-line Aeration System Provides Required Level Of Dissolved Oxygen In Pressurized Effluent Line

The treated effluent from all wastewater treatment plants across the country must meet local dissolved oxygen (DO) limits before discharging into receiving waters. A municipal WWTP in southern Mississippi has a pressurized effluent line to discharge into a local river. Since the line is pressurized, the standard method for increasing DO, a cascade (aka waterfall), was not a valid option. Read the full case to find out what option worked.