Cited by 118Arsenic contamination and mitigationHeavy metals in environmentAdsorption and biosorption for pollutant removal

Sorption of As (V) by some oxyhydroxides and clay minerals. Application to its immobilization in two polluted mining soils

García- Sanchez, A., Alvarez-Ayuso, E., Rodriguez-Martin, F.·2002·Clay Minerals

Abstract

Abstract Among the arsenic species in the environment, arsenate predominates under oxidizing conditions in soils and waters. The adsorption of As(V) by some natural Fe oxyhydroxides and clay minerals and synthetic Al(OH)3and FeOOH has been studied. The results show a very high As(V) adsorption capacity on both synthetic Al hydroxide (122 mg/g at pH: 5) and Fe oxyhydroxide (76 mg/g at pH 5). This adsorption capacity is pH dependent and shows maximum values at ∼pH 4. The application of these adsorbents to arsenic immobilization in the remediation process of two polluted mining soils with some differences in their physicochemical characteristics has also been studied. The best results were obtained when synthetic Al(OH)3and FeOOH were used; these materials decreased the water-extractable fraction of As by 55–79% for one soil and by nearly 100% for the other soil, the latter with higher pH and Eh values.

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Crossref · 10.1180/0009855023710027

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Authors
García- Sanchez, A., Alvarez-Ayuso, E., & Rodriguez-Martin, F.
Affiliations
Consejo Superior de Investigaciones Científicas (ES)
Venue
Clay Minerals
Published
2002-03
Volume
37
Issue
1
Pages
187-194
ISSN
  • 0009-8558 (ISSN-L)
  • 1471-8030
OpenAlex
W2314934704
Cited by
118
References
39
Citations by year
2025: 3 · 2024: 1 · 2023: 2 · 2022: 5 · 2020: 4 · 2019: 9 · 2018: 5 · 2017: 3 · 2016: 5 · 2015: 9 · 2014: 5 · 2013: 6 · 2012: 6
FWCI
4.69
Type
journal article
Language
en
Open access
closed
Locations
Clay Minerals (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Arsenic contamination and mitigation
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
arsenate adsorption, As(V) adsorption, iron oxyhydroxide, aluminum hydroxide, pH dependence, arsenic immobilization, mine soils, soil remediation, redox potential

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