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

Authors
Kim, JiwonSong, JinyoungLee, Seung-MokJung, Jinho
Issue Date
25-12월-2019
Publisher
ELSEVIER SCIENCE INC
Keywords
Acute toxicity; Adsorption; Arsenic; Biochar; Iron
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.80, pp.17 - 22
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume
80
Start Page
17
End Page
22
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/60882
DOI
10.1016/j.jiec.2019.07.026
ISSN
1226-086X
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. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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JUNG, Jin ho
생명과학대학 (환경생태공학부)
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