LEDESMA-GIRALDEZ, Wilder; 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. Universidad y Salud, San Juan de Pasto, CO, v. 28, n. 2, p. e9491, 2026. DOI: 10.22267/rus.262802.9491. Disponível em: https://revistas.udenar.edu.co/index.php/usalud/article/view/9491. Acesso em: 8 may. 2026.