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Effective removal of lead (II) ions by dead calcareous skeletons: sorption performance and influencing factors


Citation

Lim, Ai Phing and Zulkeflee, Zufarzaana and Aris, Ahmad Zaharin (2016) Effective removal of lead (II) ions by dead calcareous skeletons: sorption performance and influencing factors. Water Science and Technology, 74 (7). pp. 1577-1584. ISSN 0273-1223; ESSN: 1996-9732

Abstract

Dead calcareous skeletons (CSs) as low-cost adsorbents were studied to remove lead ions (Pb (II)) in an aqueous solution. Factors influencing the efficiency of CSs were evaluated by adsorbent size, contact time, initial concentration, dosage concentration and pH. The optimum CS size for removal of Pb (II) was 710 μm at an equilibrium time of 720 min. The best dosage of CS was 10 g/L for a 99% removal efficiency without pH adjustment. Pb (II) ions were effectively removed in the initial pH of the metal solution. CS was able to remove a high concentration (100 mg/L) of Pb (II) at a removal efficiency of 99.92% and at an adsorption capacity of 13.06 mg/g. Our results demonstrated the potential of CS as a metal adsorbent in the aqueous phase with a high-removal efficiency and distinct physical characteristics.


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Official URL or Download Paper: http://wst.iwaponline.com/content/74/7/1577

Additional Metadata

Item Type: Article
Subject: Lead (II) ions; Dead calcareous skeletons; Sorption performance
Divisions: Faculty of Environmental Studies
DOI Number: https://doi.org/10.2166/wst.2016.368
Publisher: IWA Publishing
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 27 Feb 2018 06:33
Last Modified: 27 Feb 2018 06:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.2166/wst.2016.368
URI: http://psasir.upm.edu.my/id/eprint/54070
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