Removal of Hexavalent Chromium from Aqueous Solutions by Adsorption on Thermally Modified and Non-Modified Eggshells. Journal of Engineering, [S. l.], v. 19, n. 12, p. 1661–1672, 2013. DOI: 10.31026/j.eng.2013.12.11. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/2422. Acesso em: 30 mar. 2025.