Optimization of Heavy Metals Removal from Wastewater by Adsorption onto Theobroma cacao pod. Jewel Journal of Scientific Research, [S. l.], v. 10, n. 2, p. 364–373, 2025. Disponível em: https://jjsr.org/index.php/jjsr/article/view/138. Acesso em: 27 oct. 2026.