Modelling of cadmium (ii) uptake from aqueous solutions using treated rice husk: fixed – bed studies

Garba, Abdurrahman and Nasri, Noor Shawal and Basri, Hatijah and Mohd Zain, Husna and Hayatu, Umar S. and Abdulrasheed, Abdulrahman and Mohsin, Rahmat and Abdul Majid, Zulkifli and Mohamed Rashid, Norhana (2017) Modelling of cadmium (ii) uptake from aqueous solutions using treated rice husk: fixed – bed studies. Chemical Engineering Transactions, 56 . pp. 229-234. ISSN 22839216

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Official URL: DOI: 10.3303/CET1756039

Abstract

Rice husk is an agricultural waste material obtained mainly from rice mills. Treated rice husk was evaluated as a sorbent for cadmium (II) ions removal from solutions by utilising fixed-bed adsorption mode. In this study, the influence of flow rate (3 and 9 mL/min), adsorbent heights of (0.9, 1.8 and 2.8 cm) and influent cadmium ions concentration of (5 and 20 mg/L) on the sorption capacity of the adsorbent in a fixed-bed column were explored. The highest uptake of 87 % was obtained using 20 mg/L initial Cd (II) solution was achieved at high flow rate of 9 mL/min and a bed height of 2.8 cm. The experimental results obtained from the column adsorption studies were correlated with the Thomas, Yoon–Nelson and Adams–Bohart models. The modelling results for the adsorption indicated that the Adams–Bohart model fitted well over the other models.

Item Type:Article
Subjects:T Technology > TP Chemical technology > TP995-996 Utilization of wastes
ID Code:10369
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:19 Sep 2018 13:41
Last Modified:19 Sep 2018 13:41

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