Adsorption kinetics of malachite green from aqueous solution onto carica papaya seed
Adsorption kinetics of malachite green from aqueous solution onto carica papaya seed
No Thumbnail Available
Date
2011-01
Authors
Omeiza, F.S.
Ekwumemgbo, P.A.
Kagbu, J.A.
Israel, K.O.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Carica papaya seed (CPS) waste was used as an adsorbent for the removal
of malachite green and was studied in batch mode the effect of agitation
time and initial dye concentration, adsorbent dosage and pH were examined.
The study revealed that the amount of dye adsorbed (mgg-1) increased
with increase in agitation time and reached equilibrium after 35
minute. for dye concentration of 2.00-10.00 mg/l. the adsorbent dosage of
1.00 g/60.00ml and pH 8.0 were found to be the optimumformaximumfor
maximum dye removal. The batch mode adsorption followed both the
Langmuir and Freundlich isotherms. The pseudo first and second order
kinetics model provided the best correlation of the equilibrium data. The
adsorption kinetics of malachite green showed that the pseudo first order
kinetic model provided the best correlation of the equilibrium data. This
study implies that it is possible to develop a dye removal system using
carica papaya seed, which occur as a waste in the environment.
2011 Trade Science Inc. - INDIA
Description
postprint journal article
Keywords
Adsorption,, kinetics of malachite green,, aqueous solution,, carica papaya seed, Malachite green,, Desorption studies;, Gravity (xg),