The Use of Tea leaves Wastes to reduce Hexavalent Chromium Concentration in industrial Waste Water by Adsorption. Baghdad Science Journal, Iraq, Baghdad, v. 11, n. 2, p. 1067–1073, 2025. DOI: 10.21123/bsj.2014.11.2.1067-1073. Disponível em: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/2730.. Acesso em: 19 jun. 2025.