Fig. 4From: Investigations of Heavy Metal Ion Sorption Using Nanocomposites of Iron-Modified Biochar a Elution of Cd(II) from metal-loaded MBC2 using HNO3 at the concentrations in the range 0–2 mol/dm3 and b effect of the phase contact time on Cd(II) desorption on metal-loaded MBC1 and MBC2 using 0.1 mol/dm3 HNO3 Back to article page