As(iii) removal through catalytic oxidation and Fe(iii) precipitation.

ABSTRACT: To remove arsenite (As(iii)) from wastewater effectively, the catalytic oxidation of As(iii) to arsenate (As(v)) and As(v) precipitation with iron ions (Fe(iii)) was investigated. The Pt/SiO₂ catalyst functioned as a reaction site for As(iii) with oxygen in the atmosphere. The combination of the Pt/SiO₂ catalyst and Fe(iii) precipitant improved the removal of As(iii) in the precipitate; Pt/SiO₂ worked as both an As(iii) oxidation site and precipitation site with Fe(iii) precipitant.

SUBMITTER: Oshima K 

PROVIDER: S-EPMC9171746 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature