Fig. 3. Desorption of Cu sorbed under the addition of various dissolved organic matter (DOM) concentrations and with an initial Cu concentration of 40 mg L-1 by the calcareous clay loam through 1 M MgCl2 (pH7) extraction for 2 h.
Fig. 3. Desorption of Cu sorbed under the addition of various dissolved organic matter (DOM) concentrations and with an initial Cu concentration of 40 mg L-1 by the calcareous clay loam through 1 M MgCl2 (pH7) extraction for 2 h.