Influence of pH and oxidation on the leaching potential of As, Cu, Pb and Zn from sediments through a pHstat-leaching test in combination with a BCR 3-step extraction KU Leuven
Since contaminated river-bed sediments in Haiphong Harbor (Vietnam) are regularly dredged and disposed on land, an understanding about the influences of key parameters such as pH and oxidation on the leachability of As, Cu, Pb and Zn is necessary for management and treatment of these dredged wastes. A 96h pHstat-leaching test examining the leaching behaviors of elements at pre-set pH values (2, 4, 6, 8 (natural), 9 and 11), is performed ...