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

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 (56.0...

Full description

Saved in:
Bibliographic Details
Published inJournal of industrial and engineering chemistry (Seoul, Korea) Vol. 80; pp. 17 - 22
Main Authors Kim, Jiwon, Song, Jinyoung, Lee, Seung-Mok, Jung, Jinho
Format Journal Article
LanguageEnglish
Published Elsevier B.V 25.12.2019
한국공업화학회
Subjects
Acute toxicity
Adsorption
Arsenic
Biochar
Iron
화학공학
Iron
Adsorption
Arsenic
Biochar
Acute toxicity
Online AccessGet full text
ISSN1226-086X
1876-794X
DOI10.1016/j.jiec.2019.07.026

Cover

More Information
Summary: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 47.90mg/g Fe for powder and beads, respectively) than previously reported composites. Moreover, the leached arsenite concentration from both the adsorbents was less than 2.02mg/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.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2019.07.026