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Competitive Adsorption of Cu, Zn and Mn on Compost Amended Soils with Variable Clay Content

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Last updated: 01 Jan 2025

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Abstract

THE AIM of this study was to assess the effects of a single application of compost derived from crop wastes, and incubated for 60 days, on the competitive adsorption of Cu, Zn and Mn on four soil samples with different clay contents (2%, 10%, 20% and 40%, hereafter referred to S2, S10, S20 and S40) in terms of their physical and chemical properties.The competitive sorption isotherms of copper (Cu), zinc (Zn) and manganese (Mn) in multi-metal batch experiments were characterized using linear, Freundlich and Langmuir equations. All soils showed greater sorption capacity and binding strength for Cu than the other trace elements. On the basis of distribution (partition) coefficient (Kd) values for the metal concentration and maximum sorption capacity (Q) for each soil and trace element, the selectivity sequence was obtained. The greatest adsorption sequence found was Cu>Zn>Mn. Cu was the trace element most strongly adsorbed by all soils, whereas Zn and Mn were the least adsorbed in the competitive situation. The relationships between maximum adsorption and partitioning coefficients of Cu, Zn and Mn and clay content were quantitatively modeled.

DOI

10.21608/ejss.2015.210

Keywords

compost, Clay. CEC, Competitive adsorption isotherm, trace elements

Authors

First Name

M. S.

Last Name

Kotb

MiddleName

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Affiliation

Department of Soils & Water, Faculty of Agriculture, Cairo University, Egypt.

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Volume

55

Article Issue

1

Related Issue

70

Issue Date

2015-03-01

Receive Date

2014-05-18

Publish Date

2015-03-30

Page Start

97

Page End

113

Print ISSN

0302-6701

Online ISSN

2357-0369

Article File

EJSS_Volume 55_Issue 1_Pages 97-113.pdf

PDF . 522.8kB

Link

https://ejss.journals.ekb.eg/article_210.html

Detail API

https://ejss.journals.ekb.eg/service?article_code=210

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7

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Original Article

Type Code

19

Publication Type

Journal

Publication Title

Egyptian Journal of Soil Science

Publication Link

https://ejss.journals.ekb.eg/

MainTitle

Competitive Adsorption of Cu, Zn and Mn on Compost Amended Soils with Variable Clay Content

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Article

Created At

22 Jan 2023