Removal of Copper (II) from Aqueous Solutions Using Teak (Tectona grandis L.f) Leaves

S, Rathnakumar and R.Y., Sheeja and T., Murugesan (2009) Removal of Copper (II) from Aqueous Solutions Using Teak (Tectona grandis L.f) Leaves. In: International Conference on Chemical Engineering and Technology, August 26 - 28, Singapore.

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Abstract

The experiments were performed in a batch set up
under different concentrations of Cu (II) (0.2 g.l-1 to 0.9 g.l-1), pH (4-
6), temperatures (20oC – 40oC) with varying teak leaves powder (as
biosorbent) dosage of 0.3 g.l-1 to 0.5 g.l-1. The kinetics of interactions
were tested with pseudo first order Lagergran equation and the value
for k1 was found to be 6.909 x 10-3 min-1. The biosorption data gave
a good fit with Langmuir and Fruendlich isotherms and the Langmuir
monolayer capacity (qm) was found to be 166.78 mg. g-1. Similarly
the Freundlich adsorption capacity (Kf) was estimated as 2.49 l g-1.
The mean values of the thermodynamic parameters ΔH, ΔS, and ΔG
were -62.42 KJ. mol-1, -0.219 KJ.mol-1 K-1 and -1.747 KJ.mol-1 at
293 K from a solution containing 0.4 g l-1 of Cu(II) showing the
biosorption to be thermodynamically favourable. These results show
good potentiality of using teak leaves as a biosorbent for the removal
of Cu(II) from aqueous solutions

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TP Chemical technology
Departments / MOR / COE: Departments > Chemical Engineering
Depositing User: Prof Dr Thanabalan Murugesan
Date Deposited: 28 Mar 2010 04:09
Last Modified: 19 Jan 2017 08:25
URI: http://scholars.utp.edu.my/id/eprint/899

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