Application of iron-modified biochar for arsenite removal and toxicity reduction

다국어 초록 (Multilingual Abstract)

In the present study, the Miscanthus biochar was modified with amorphous iron (hydr)oxide to removearsenite. The kinetic study indicated the chemical adsorption of arsenite on the iron-modified biochar.
Additionally, the iron-modified biochar exhibited similar or higher adsorption of arsenite (56.06 and47.90 mg/g Fe for powder and beads, respectively) than previously reported composites. Moreover, theleached arsenite concentration from both the adsorbents was less than 2.02 mg/L, which was not acutelytoxic to Daphnia magna. Considering that it is not easy and safe to use adsorbents in powder form, theiron-modified biochar beads can be a promising adsorbent.

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