Molecular insights into the simultaneous removal mechanisms of As(Ⅴ) and Cd(II) in iron tailings slag-biochar composites.

Arsenic and cadmium contamination frequently coexist in the real environment. However, it remains a challenge for their simultaneous removal due to their distinct physicochemical properties at low cost. To this end, a cost-effective magnetic biochar adsorbent (ITBNa800) was prepared using biomass waste and iron tailings slag.

Treatment of Cd(Ⅱ) and As(Ⅴ) co-contamination in aqueous environment by steel slag-biochar composites and its mechanism.

As toxic elements of concern, Cd(II) and As(V) pose a threat to human health. In this study, a new type of magnetic adsorbent (SBNa800) was prepared using a mixture of industrial waste steel slag and ginkgo leaves to treat wastewater contaminated with Cd(II) and As(V). The maximum adsorption capacities of SBNa800 for Cd(II) and As(V) were 109.