Taghavi, K. .; Naghipour, D.; Ashrafi, S. D. .; Salehi, M. . The Removal of Heavy Metals from the Leachate of Aged Landfill: The Application of the Fenton Process and Nanosilica Absorbent: 10.32526/Ennrj/19/202100051. Environ. Nat. Resour. J. 2021, 19, 427-434.