Arsenite and Arsenate Adsorption Behavior Employing Different Crystal Forms of Iron Oxyhydroxide Coexisting with Soil
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- Fukuoka Hiroshi
- Reliability-Based Information Systems Department, Faculty of Engineering, Kagawa University
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- Shigemoto Naoya
- Chemical Technology Department, Sikoku Research Institute, Inc.
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- Inomo Hitoshi
- Reliability-Based Information Systems Department, Faculty of Engineering, Kagawa University
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- Shiraki Wataru
- Reliability-Based Information Systems Department, Faculty of Engineering, Kagawa University
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Abstract
In order to evaluate a potential adsorbent to remove arsenic in soil, the asenite/arsenate adsorption properties in soil were examined by employing three different crystalline types of iron oxyhydroxides, α-FeOOH (goethite), β-FeOOH (akaganeite) and γ-FeOOH (lepidocrocite). A weathered granite soil (Masatsuchi) and a clay were used in the experiment. These soils showed a rather lower arsenic uptake than FeOOH. The arsenite/arsenate uptakes by the FeOOHs strongly depended on the pH of the equilibrium solution. The arsenic uptakes at pH = 7 with or without the soils were well-fitted by Freundlich’s equation. The arsenite/arsenate uptakes by α-FeOOH and the arsenate uptake by γ-FeOOH were negatively affected by coexistence of the soils, presumably due to leaching components such as sulfate ions from the soils, though the similar arsenite/arsenate uptakes around several mg-As/g were observed by these three types of FeOOHs.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39 (9), 948-955, 2006
The Society of Chemical Engineers, Japan
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Details
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- CRID
- 1390282679544448896
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- NII Article ID
- 10018244000
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- NII Book ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 8058062
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed