E. A. EKONG; A. P ONIWOKPOMAYO. THE EFFECTIVENESS OF ACTIVATED CARBON IN HEAVY METAL ADSORPTION FROM WASTEWATER. African Journal of Environment and Sustainable Development, Port Harcourt, Rivers, v. 1, n. 2, p. 50–56, 2023. Disponível em: https://www.openjournals.ijaar.org/index.php/ajesd/article/view/131.. Acesso em: 17 jun. 2024.