Modeling of lead (II) adsorption on sodium hydroxide treated rice husk: fixed-bed studies

Garba, Abdurrahman and Basri, Hatijah and Nasri, Noor Shawal and Siddiq, Umar Hayatu and Abdul Rahman, Abdul Rasheed (2017) Modeling of lead (II) adsorption on sodium hydroxide treated rice husk: fixed-bed studies. Malaysian Journal of Fundamental and Applied Sciences, 13 (4). pp. 803-806. ISSN 2289-5981

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Abstract

Sodium hydroxide treated rice husk was explored as an adsorbent for the removal of lead (II) ions from aqueous solutions in a column studies. This paper evaluate the effect of flow rates of 3 mL/min and 9 mL/min; bed depth of 0.9 cm, 1.8 cm and 2.8 cm and influent lead concentration of 5 mg/L and 20 mg/L on the adsorption capacity of the sample in fixed-bed mode were investigated. The highest adsorption capacity of 78 % using 20 mg/L initial lead (II) ions solution was achieved at flow rate of 9 mL/min and bed depth of 2.8 cm. The experimental results obtained from the adsorption studies were correlated with the Thomas, Adams– Bohart and Yoon–Nelson models. The results of the adsorption parameters showed that, Adams–Bohart model fitted the adsorption studies well over all the other models.

Item Type:	Article
Uncontrolled Keywords:	Adsorption; Rice husk; Fixed-bed modeling; Breakthrough curves
Subjects:	Q Science > Q Science (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:	Faculty of Applied Science and Technology > Department of Physics and Chemistry
Depositing User:	Miss Nur Rasyidah Rosli
Date Deposited:	16 Dec 2021 06:16
Last Modified:	16 Dec 2021 06:16
URI:	http://eprints.uthm.edu.my/id/eprint/4784

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