CONVERSION OF SLUDGE FROM A WASTEWATER TREATMENT PLANT TO A FERTILIZER. International Journal of Geomate, [S. l.], v. 11, n. 23, p. 2194–2199, 2021. Disponível em: https://geomatejournal.com/geomate/article/view/2532. Acesso em: 10 oct. 2026.