Cepeda Arias, Édisson R, & Montañez Pérez, J S. (2009). Analysis of alternatives for the use or final disposal of the sludge generated at the Paipa (Boyacá) mini-wastewater treatment plant. Revista Facultad de Ingeniería, 16(22), 27–41. Retrieved from https://revistas.uptc.edu.co/index.php/ingenieria/article/view/1337