Use of Mandacaru Cactus (Cereus Jamacaru) to Remove Methylene Blue Dye from Wastewater. London Journal of Engineering Research, [S. l.], v. 24, n. 6, p. 17–25, 2024. Disponível em: https://testing.journalspress.uk/index.php/LJER/article/view/1006. Acesso em: 4 feb. 2026.