Continuous adsorption of lead ions in a column packed with palm shell activated carbon

Issabayeva, G. and Aroua, M.K. and Sulaiman, N.M. (2008) Continuous adsorption of lead ions in a column packed with palm shell activated carbon. Journal of Hazardous Materials, 155 (1-2). pp. 109-113. ISSN 0304-3894

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Abstract

The continuous adsorption of lead ions from aqueous solution on commercial, granular, unpretreated palm shell activated carbon (PSAC) was studied. Effect of pH, flow rates and presence of complexing agents (malonic and boric acids) were examined. The breakthrough period was longer at pH 5 indicating higher adsorption capacity of lead ions at higher pH. Increase of the flow rate, expectedly, resulted in the faster saturation of the carbon bed. Presence of complexing agents did not improve adsorption uptake of lead ions. However, presence of malonic acid resulted in smoother pH stabilization of solution compared to single lead and lead with boric acid systems. The results on continuous adsorption of lead were applied to the model proposed by Wang et al. Y.-H. Wang, S.-H. Lin, R.-S. Juang, Removal of heavy metals ions from aqueous solutions using various low-cost adsorbents, J. Hazard. Mater. B 102 (2003) 291-302. The agreement between experimental and modelled breakthrough curves was satisfactory at both pHs.

Item Type: Article
Additional Information: Cited By (since 1996):13 Export Date: 21 April 2013 Source: Scopus CODEN: JHMAD :doi 10.1016/j.jhazmat.2007.11.036 PubMed ID: 18179867 Language of Original Document: English Correspondence Address: Aroua, M.K.; Chemical Engineering Department, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: mkaroua@um.edu.my : Chemicals/CASactivated carbon, 64365-11-3, 82228-96-4; boric acid, 10043-35-3, 11113-50-1, 11129-12-7, 14213-97-9; lead, 7439-92-1; malonic acid, 141-82-2, 156-80-9; boric acid, 11113-50-1; Boric Acids; Carbon, 7440-44-0; Lead, 7439-92-1; Malonates; malonic acid, 141-82-2; Water Pollutants, Chemical References: Grosse, D.W., (1990) Innovative Practices for Treating Waste Streams Containing Heavy Metals: A Waste Minimization Approach, , Technomic Pub, USA; Malaysia Environmental Quality Report 2002, Ministry of Science, Technology and the Environment of Malaysia (ISSN 0127-6433), 2002Guo, J., Lua, A.C., Preparation and characterization of adsorbents from oil palm fruit solid wastes (2000) J. 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Uncontrolled Keywords: Adsorption; Boric acid; Breakthrough curve; Lead ions; Malonic acid; Activated carbon; Complexation; Lead; pH effects; Metal ions; boron; carboxylic acid; cation; experimental study; pH; article; flow rate; heavy metal removal; waste water management; Arecaceae; Boric Acids; Carbon; Hydrogen-Ion Concentration; Malonates; Water Pollutants; Chemical; Water Purification.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 08:12
Last Modified: 11 Dec 2013 03:25
URI: http://eprints.um.edu.my/id/eprint/7449

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