Chemical and toxicological assessment of arsenic sorption onto Fe-sericite composite powder and beads
- Authors
- Kim, Jiwon; Lee, Cheongho; Lee, Seung Mok; Lalhmunsiama; Jung, Jinho
- Issue Date
- 1월-2018
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Acute toxicity; Arsenic; Adsorption; Sericite; Sorbent
- Citation
- ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, v.147, pp.80 - 85
- Indexed
- SCIE
SCOPUS
- Journal Title
- ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
- Volume
- 147
- Start Page
- 80
- End Page
- 85
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/78404
- DOI
- 10.1016/j.ecoenv.2017.08.033
- ISSN
- 0147-6513
- Abstract
- Batch sorption and leaching of arsenic (1-30 mg L-1) on Fe-sericite composite powder and beads were investigated in this study. Fe-sericite composite powder was made from natural sericite modified with iron, and alginate was used to transform the powder into beads. The maximum sorption capacities of the Fe-sericite composite powder (15.04 and 13.21 mg g(-1) for As(III) and As(V), respectively) were higher than those of the corresponding beads (9.02 and 7.11 mg g(-1) for As(III) and As(V), respectively) owing to the higher specific surface area of the powder. In addition, the leaching amounts of As(III) from Fe-sericite composite beads (<= 15.03%) were higher than those of the corresponding powder (<= 5.71%). However, acute toxicity of As(III)-sorbed Fe-sericite composite beads toward Daphnia magna was not significantly different from that of the corresponding powder (p > 0.05). Considering higher uptake of the powder particles by the daphnids, Fe-sericite composite beads seem to be a more appropriate and safer sorbent for arsenic removal in practical application. Based on Fe content, Fe-sericite composite beads had similar or higher maximum sorption capacities (71.19 and 56.11 mg g(-1) Fe for As(III) and As(V), respectively) than those of previously reported sorbents.
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Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
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