Published
      
              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.
by Tsiros I.X., Ambrose R.B., Chronopoulou-Sereli A.