Kinetic and Equilibrium Studies of the adsorption of Mercury(II) ions from Aqueous Solution using Kaolinite and Metakaolinite clays from Southern Cameroon[/b][b][/b]
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2013, Vol 3, Issue 2
Abstract
[i] The elimination of mercury from aqueous solution by kaolinite (Ka1) and metakaolinite (Metaka1) by adsorption using batch mode was studied. The study highlighted several parameters, such as the contact time, mass of the adsorbent, the pH of the solution, and the initial concentration of the mercury ions. It was established that the elimination of mercury ions by the two clays depended on the pH, the initial concentration of the sorbate and the mass of sorbent. Maximum adsorption took place at pH=2.5 for the two adsorbents, and the extent of elimination on an adsorbent mass of 0.5 g was 45.18 and 71.65% for kaolinite and metakaolinite respectively. The sorbent/sorbate equilibrium was well described by the Langmuir and the Dubinin-Radushkevich(D-R) adsorption models, while the kinetics was described by the pseudo-second order model for kaolinite, and the pseudo-first order for metakaolinite. The factor of separation of the Langmuir isotherm, RL was calculated to be 0.062 for Ka1 and 0.04 for Metaka1, indicating the adsorption to be favourable. Also, the average energies of adsorption were found to be 1.46 and 1.57 KJ/mol respectively, inferring that physical adsorption controlled the phenomenon of mercury adsorption.[/i]
Authors and Affiliations
S. G. Anagho , J. M. Ketcha , D. R. TchuifonTchuifon , J. N. Ndi
Keywords
Related Articles
- EP ID EP141006
- DOI -
- Views 92
- Downloads 0
Removal of Phenol from Aqueous Solution onto Modified Fly Ash
The purpose of this study was to investigate the possibility of the utilization of coal fly ash as a low cost adsorbent. Experiments were conducted to evaluate the removal of phenol from aqueous solution by fly ash under...
A New Aza-Indigo Dye and Pigment
A new and unequivocal synthesis of Aza-indigo is described. In this process or reaction, a hexacyclic heterocyclic compound, 2-aminopyridine was used as the substrate. The parent compound Aza-indigo or pyridinylindigo wa...
Influence of Brackish water aquaculture on Soil Salinisation
Brackish water aquaculture has been debated severely for its environmental consequences. Mushrooming of such farms on reclaimed mangrove lands and converted agricultural land leads to salinisation of agricultural fields...
[b]Adsorption of Metal (Cd) from Synthetic Wastewater by Plant Material [/b][b][/b]
[b][i]The major objective of this paper was to investigate the removal of Cadmium (II) from synthetic wastewater using poly vinyl alcohol coated activated carbon prepared from leaves of Calotropis Procera (PVAC-...
Importance of Industrial Waste in Maximizing the Yield of Rice and Its Effect of Soil Fertility in Coastal Region
A field experiment was conducted in the coastal region of Ramanathapuram district in Tamil Nadu to maximize the rice yield through integrated nutrient management and its effects on soil properties. There were four so...