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Thermodynamics of Fe(II) and Mn(II) adsorption onto bentonite from aqueous solutions

✍ Scribed by Naseem Rauf; S.S. Tahir

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
116 KB
Volume
32
Category
Article
ISSN
0021-9614

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✦ Synopsis

The adsorption behaviour of Fe(II) and Mn(II) onto bentonite was studied as a function of temperature under optimized conditions of shaking time, amount of adsorbent, pH, and concentration of the adsorbate. Thermodynamic parameters such as H o and S o were calculated from the slope and intercept of the linear plot of ln K D against 1/T . Analysis of absorption results obtained at T = (298, 303, 313, and 323) K showed that the adsorption pattern on bentonite followed the Langmuir and Freundlich isotherm. A flame atomic absorption spectrometer was used for measuring the concentration of the metals.

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