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Mercury (II) removal using CNTS grown on GACs

Kabbashi, Nassereldeen and Mirghani, Mohamed Elwathig Saeed and Salleh, N. W. (2011) Mercury (II) removal using CNTS grown on GACs. In: 5th Kuala Lumpur International Conference on Biomedical Engineering 2011, 20-23 June 2011, Kuala Lumpur, Malaysia.

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Elemental (metallic) mercury primarily causes health effects when it is breathed as a vapor where it can be absorbed through the lungs, at higher exposures there may be kidney effects, respiratory failure and death. This study aimed to study the performance of carbon nanotubes (CNT) grown on granular activated carbon (GAC) as an adsorbent for removal of mercury from aqueous solution. Due to its highly toxic effects to humans and environment, heavy metal concentrations in water are restricted by strict standards and reduced to the standard permitted. The effect of pH, agitation speed,contact time and CNT dosage was studied for optimal adsorption of mercury in the aqueous solution. Design Expert software was used to determine the number of runs and its variations,which are 18 runs. It was found that the optimal condition for mercury (II) ions adsorption occurred at adsorbent dosage of 5 mg, pH value of 5, contact time of 120 minutes and agitation speed of 150 rpm. The model resulted R2= 0.8517 indicating 85.17% of the factors,which were pH, contact time,agitation speed and adsorbent dosage correlated to each other.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 4286/2618
Uncontrolled Keywords: Mercury, CNT-GAS, ANOVA, Adsorption
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA170 Environmental engineering. Sustainable engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Nassereldeen Kabbashi
Date Deposited: 21 Sep 2011 16:02
Last Modified: 15 Dec 2011 21:25
URI: http://irep.iium.edu.my/id/eprint/2618

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