Przemysl Chemiczny, Vol.86, No.10, 983-984, 2007
Effect of carbon content in biolithes on Cd(II), Zn(II), Ni(II), Cu(II) and Cr(III) ions uptake
Three Polish peats (porosity 0.26-0.59, sp. surface 10.78-14.10 m(2)/g, C content 52.93-60.96%) and a lignite (porosity 0.42, sp. surface 9.98 m(2)/g, C content 66.79%) were used as sorbents for removal Cd, Zn, Ni, Cu, and Cr ions from an aq. soln. at 22 degrees C to det the sorption isotherms. The sorption capacity increased with the increasing C content in the sorbents except for the Cr3+ ions showing a low affinity to the lignite used.