Ledesma-Giraldez W, Esmila Yeime. Characterization of influent and effluent at a wastewater treatment plant with trickling filters in the high Andean region of PeruCharacterization of influent and effluent at a wastewater treatment plant with trickling filters in the high Andean region of Peru. Univ. Salud [Internet]. 2026 May 1 [cited 2026 May 8];28(2):e9491. Available from: https://revistas.udenar.edu.co/index.php/usalud/article/view/9491