oxidation pond
пруд биологический
Бохир усанд биологийн цэвэрлэгээ хийх гүехэн цөөрөм.
Эх сурвалж: Н.Чагнаа "Усны аж ахуйн нэр томьёоны тайлбар толь" УБ., 2006, х.35Oxidation ponds, also called lagoons or stabilization ponds, are large, shallow ponds designed to treat wastewater through the interaction of sunlight, bacteria, and algae.
Source https://www.britannica.com/technology/wastewater-treatment/Oxidation-pondstabilization pond