Copper, nickel and zinc removal by peanut hulls: batch and column studies in mono, tri-component systems and with real effluent by Oliveira F.D. , Soares A.C., Freitas O.M. and Figueiredo S.A.
Removal of hexavalent chromium from electroplating wastewater by electrocoagulation with iron electrodes by Dermentzis K., Christoforidis A., Valsamidou E. and Lazaridou A.