Synergy between Fenton reagent and solid waste-based solidifying agents during the solidification/stabilization of lead(II) and arsenic(III) contaminated soils.

Due to the different physicochemical properties of lead (Pb) and arsenic (As), coupled remediation processes of contaminated soils containing Pb and As have always been a technical challenge. In the present study, a novel solidifying agent (BER) was synthesized using alkaline oxygen furnace slag (BOFS), modified electrolytic manganese residue (EMR) and red mud (RM). The solidifying agent was synergistically used with Fenton reagent for solidifying/stabilizing Pb- and As-contaminated soils.