cu pb zn multi metal beneficiation in the asia pacific ...
Stabilization of As, Cr, Cu, Pb and Zn in soil using . Cu and Zn Hartley et al, 2004 Warren et al, 2003, Warren and Alloway, 2003 observed increased plant uptake of other contaminants including Cu, Zn and Pb in soil amended with FeII sulfate and lime The authors explained that there was an insufficient amount of lime added and suggested a ratio of lime/Fe oxide necessary for maintaining