CARDENAS CALVACHI, Gloria Lucia; SANCHEZ ORTIZ, Ivan Andrés. Nitrogen and wastewater: origins, effects and removal mechanisms to preserve the environtment and public health. Universidad y Salud, San Juan de Pasto, CO, v. 15, n. 1, 2013. Disponível em: https://revistas.udenar.edu.co/index.php/usalud/article/view/375. Acesso em: 14 apr. 2026.