Cited by 300Heavy metals in environmentAdsorption and biosorption for pollutant removalEnvironmental and Analytical Chemistry Studies

Competitive sorption and desorption of heavy metals by individual soil components

Covelo, E.F., Vega, F.A., Andrade, M.L.·2007·Journal of Hazardous Materials

Abstract

Knowledge of sorption and desorption of heavy metals by individual soil components should be useful for modelling the behaviour of soils of arbitrary composition when contaminated by heavy metals, and for designing amendments increasing the fixation of heavy metals by soils polluted by these species. In this study the competitive sorption and desorption of Cd, Cr, Cu, Ni, Pb and Zn by humified organic matter, Fe and Mn oxides, kaolinite, vermiculite and mica were investigated. Due to the homogeneity of the sorbents, between-metal competition for binding sites led to their preferences for one or another metal being much more manifest than in the case of whole soils. On the basis of k(d100) values (distribution coefficients calculated in sorption-desorption experiments in which the initial sorption solution contained 100mgL(-1) of each metal), kaolinite and mica preferentially sorbed and retained chromium; vermiculite, copper and zinc; HOM, Fe oxide and Mn oxide, lead (HOM and Mn oxide also sorbed and retained considerable amounts of copper). Mica only retained sorbed chromium, Fe oxide sorbed cadmium and lead, and kaolinite did not retain sorbed copper. The sorbents retaining the greatest proportions of sorbed metals were vermiculite and Mn oxide, but the ratios of k(d100) values for retention and sorption suggest that cations were least reversibly bound by Mn oxide, and most reversibly by vermiculite.

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Crossref · 10.1016/j.jhazmat.2006.09.018

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  • Covelo et al. studied the simultaneous sorption and desorption of six heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) by kaolinite, vermiculite, mica, Fe- and Mn-oxides, and organic matter.

    “Covelo et al. [47] studied the simultaneous sorption and desorption of six heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) by kaolinite, vermiculite, mica, Fe- and Mn-oxides, and organic matter.”
  • Kaolinite and mica preferentially sorbed Cr, vermiculite Cu and Zn, while HA substances and Fe- and Mn-oxides preferentially fixed Pb and Cu.

    “Kaolinite and mica preferentially sorbed Cr, vermiculite Cu, and Zn, while HA substances and Fe- and Mnoxides preferentially fixed Pb and Cu.”

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Authors
Covelo, E. F., Vega, F. A., & Andrade, M. L.
Affiliations
Universidade de Vigo (ES)
Corresponding author
Covelo, E.F.
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2007-02
Volume
140
Issue
1-2
Pages
308-315
ISSN
0304-3894 (ISSN-L)
OpenAlex
W2064118317
Cited by
300
References
42
Citations by year
2026: 16 · 2025: 15 · 2024: 19 · 2023: 27 · 2022: 14 · 2021: 13 · 2020: 20 · 2019: 17 · 2018: 19 · 2017: 20 · 2016: 16 · 2015: 13 · 2014: 15 · 2013: 13 · 2012: 15
FWCI
6.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministerio de Educación, Cultura y Deporte (REN 2002-0187)
  • Xunta de Galicia (PGIDTI03PXIC3001PN)
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
heavy metal adsorption, competitive adsorption, desorption, soil components, humified organic matter, iron oxide, manganese oxide, kaolinite, vermiculite, mica, cadmium, chromium, copper, nickel, lead, zinc, distribution coefficient, metal retention, sorption reversibility, soil contamination
MeSH terms
Adsorption, Aluminum Silicates, Binding, Competitive, Kaolin, Oxides, Soil, Manganese Compounds, Metals, Heavy

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