In
this study, Cr (III) removal from aqueous solutions was investigated by using the
batch adsorption method. An orange peel activated with potassium carbonate
(OPAPC) was used as the adsorbent. In order to determine optimum adsorption
conditions, adsorbent concentration (2-15 g/L), pH (3-7), temperature (298-318
K), contact time (10-270 min) and initial concentration of Cr (III) (5-50 mg/L)
were investigated for Cr (III) removal from aqueous solutions using OPAPC. The
equilibrium data were evaluated using the Langmuir and Freundlich model
equations and the kinetic data were evaluated with pseudo first and second
order kinetic models. In addition, the adsorption thermodynamics of the
proposed method in optimum conditions was investigated.
Subjects | Engineering, Chemical Engineering |
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Journal Section | Articles |
Authors | |
Publication Date | July 13, 2017 |
Submission Date | June 7, 2017 |
Acceptance Date | October 8, 2017 |
Published in Issue | Year 2017 |