Universiti Teknologi Malaysia Institutional Repository

Application of ion chromatography for the assessment of cadmium adsorption in simulated wastewater by activated carbon

Musa, Mutah and Kikuchi, Akira and Ismail, Nor Eman and Jaafar, Jafariah and Abdul Majid, Zaiton and Salim, Mohd. Razman and Tanaka, Kazuhiko (2014) Application of ion chromatography for the assessment of cadmium adsorption in simulated wastewater by activated carbon. Desalination and Water Treatment, 52 (19-21). pp. 3616-3622. ISSN 1944-3986

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1080/19443994.2013.854099

Abstract

A separation for Cd2+ and its interferences of common cations (Na+, NH+, K+, Mg2+, and Ca2+) was performed. Cation-exchange ion chromatography for Cd2+ and common cations separation on a weakly acidic H+ forming cation-exchange resin was investigated and applied to test the efficacy of activated carbon in the removal of Cd2+ from simulated wastewater. The difference of retention volumes between Ca2+ and Cd2+ was 0.45 mL for oxalic acid with a concentration of 1.75 mM, and the retention volume drastically decreased when the oxalic acid concentration increased in the eluent. Considering the prevailing conditions for TOSOH TSK gel Super IC A/C at 40°C with a least pH limit of 2.0, 1.75 mM of oxalic acid was selected for rapid analysis with pH of 2.3. Applying 50 μL sample injection, the calibration curve was linear for tested standard samples ranging from 0.05 to 2.0 mg/L, the detection limit (S/N = 3) was 0.066 mg/L (0.583 μM), and the analysis was applicable with coexisting Ca2+ up to 10.0 mg/L (250 μM) while other cations did not interfere. It was possible to analyze three samples within an hour. The application of this method on Cd2+ adsorption indicated the effectiveness of the method for heavy metals' analysis.

Item Type:Article
Uncontrolled Keywords:activated carbon, cadmium, cation-exchange, ion chromatography, oxalic acid
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:51897
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 03:51
Last Modified:09 Nov 2018 08:29

Repository Staff Only: item control page