Treatment Strategies for Cold Groundwater Contaminated with High Levels of Nitrate and Ammonium, Using Nitrification, Denitrification, and Anammox. JISEES [Internet]. 2025 Oct. 21 [cited 2026 Jan. 22];:036. Available from: https://journals.ysu.am/index.php/jisees/article/view/SI_1_2025_p036