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

Jiwon Kim, Jinyoung Song, Seung Mok Lee, Jinho Jung

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In the present study, the Miscanthus biochar was modified with amorphous iron (hydr)oxide to remove arsenite. 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 and 47.90 mg/g Fe for powder and beads, respectively) than previously reported composites. Moreover, the leached arsenite concentration from both the adsorbents was less than 2.02 mg/L, which was not acutely toxic to Daphnia magna. Considering that it is not easy and safe to use adsorbents in powder form, the iron-modified biochar beads can be a promising adsorbent.

Original languageEnglish
JournalJournal of Industrial and Engineering Chemistry
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Acute toxicity
  • Adsorption
  • Arsenic
  • Biochar
  • Iron

ASJC Scopus subject areas

  • Chemical Engineering(all)

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