Modification of sand fertility parameters during cleaning and purification process. Research, Society and Development, [S. l.], v. 13, n. 4, p. e9213445579, 2024. DOI: 10.33448/rsd-v13i4.45579. Disponível em: https://www.rsdjournal.org/rsd/article/view/45579. Acesso em: 13 dec. 2025.