The synthesis of calcium arsenate@iron arsenate coating materials and their application for arsenic-containing wastewater treatment.

ABSTRACT: The current method of treating arsenic-containing wastewater is mainly to use a calcium method to synthesize stable calcium arsenate. It is easy to cause reverse dissolution by rain or other erosion, releasing arsenic into the natural world and polluting soil and groundwater. So, calcium arsenate is not an ideal material for removing and immobilizing arsenic. Iron arsenate (FeAsO₄) is much better than calcium arsenate because of its stability and acid resistance. In this study, calcium arsenate@iron arsenate coating materials were synthesized. From the results of the XRD and SEM analyses, it was shown that calcium arsenate was coated by an iron arsenate shell which consisted of nanoparticles. The stability of the coating materials was determined using the Toxicity Characteristic

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9047570 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature