Leaching of metal(loid)s from ashes of spent sorbent and stabilisation effect of calcium-rich additives.

ABSTRACT: Contaminated water with multiple contaminants, including As, Cr, Cu and Zn, was treated with a sorbent prepared by coating peat with Fe oxides. Because As has a relatively little explored market, the regeneration of the spent sorbent was not feasible. Meanwhile, the disposal of As wastes in landfills can cause landfill leachate treatment problems. Under the reducing conditions prevailing at landfills, As(V) is reduced to As(III), which is a toxic and more mobile form. In this study, incineration was explored as a management option to treat the spent sorbent that was loaded with As, Cr, Cu and Zn. The first objective of this study was to evaluate the leaching of these metal(loid)s from the ashes and compare it with the leaching from the spent sorbents before incineration. The second objecti

SUBMITTER: Kasiuliene A 

PROVIDER: S-EPMC7376079 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature