Influences of pH on transport of arsenate (As⁵⁺) through different reactive media using column experiments and transport modeling.

ABSTRACT: This research aims to evaluate the effects of pH, including both acidic and neutral conditions to simulate an acid mine environment, on the sorption and transport of As(V) in contaminated groundwater through different reactive materials by using column experiments and mathematical modeling. Six saturated columns were set up to evaluate the migration and removal efficiency of As(V) with three different materials acting as permeable reactive barrier (PRB) media under different pH conditions (pH 4 and pH 7). The reactive materials consisted of pure sand (control column), iron oxide-coated sand (IOCS) and a combination of IOCS and zero-valent iron-coated sand (ZVICS) (ZVICS + IOCS). According to the column experiments, the descending order of removal capacity (mg As/g) for ZVICS + IOCS, IOCS a

SUBMITTER: Chotpantarat S 

PROVIDER: S-EPMC7044194 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature