음폐수 유입 전 거의 일어나지 않았던 탈질 반응이 일어나기 시작하여 무산소조에서 아질산염 및 질산염이 모두 탈질되었다.
Both nitrite and nitrate were denitrified in anoxic tank as the denitrification, which had rarely occurred before the food waste leachate inflow, began to occur.