Fig. 7. Nickel extracted in the Mn-occluded fraction for sediment (A) S1 and (B) S2 amended with various hydroxyapatite (HA) treatment levels and equilibrated in 0.02 M KCl or 0.01 M CaCl2.
Fig. 7. Nickel extracted in the Mn-occluded fraction for sediment (A) S1 and (B) S2 amended with various hydroxyapatite (HA) treatment levels and equilibrated in 0.02 M KCl or 0.01 M CaCl2.