Biphenyl sorption to different soil clay minerals

Tandlich, Roman; Baláž, Štefan

Title: Biphenyl sorption to different soil clay minerals
Creator: Tandlich, Roman
Creator: Baláž, Štefan
Date Issued: 2011
Date: 2011
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/76869
Identifier: vital:30632
Identifier: https://doi.org/10.5897/AJAR10.1012
Description: Only limited information is available in the literature on the role of soil mineral surfaces in the sorption of hydrophobic organic pollutants. This knowledge gap is addressed through the assessment of biphenyl sorption to kaolinite, illite and bentonite; using the batch equilibration technique with incubations lasting 6 or 21 days at 28 ± 2°C in the dark [RT1]. Sorption of biphenyl onto kaolinite followed the Freundlich sorption isotherm, whereas linear sorption isotherms were observed on illite and bentonite [RT2]. The biphenyl sorption partition coefficient on kaolinite ranged from 0.1 to 9.1 cm3.g-1 after 6 days and no sorption was observed after 21 days. This could have been caused by a completely reversible sorption or a loss of binding capacity after 21 days [RT3]. The respective values of the biphenyl sorption partition coefficient on illite and bentonite ranged from 20.3 ± 0.3 to 120 ± 8 cm3.g-1.Sorption equilibrium on the internal clay surfaces was reached after 6 days, as indicated by the sorption data for illite and bentonite [RT4]. Access of biphenyl molecules to the internal clay surfaces is a function of the ionic strength of soil solution and the soil organic matter is the dominant site for biphenyl sorption after 6 to 21 days.
Format: 8 pages
Format: pdf
Language: English
Relation: African Journal of Agricultural Research
Relation: Tandlich, R. and Balaz, S., 2011. Biphenyl sorption to different soil clay minerals. African Journal of Agricultural Research, 6(10), pp.2321-2328.
Relation: African Journal of Agricultural Research volume 6 number 10 2321 2328 May 2011 1991-637X
Rights: Authors
Rights: Use of this resource is governed by the terms and conditions of the African Journal of Agricultural Research self-archiving statement (https://academicjournals.org/self_archiving)

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Tandlich, Roman (Dr)

RU Department of Pharmacy

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