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Removal of Zn(II) Ion from Aqueous Solution using Activated Carbon Prepared from Rice Husk Treated with Sodium Hydroxide

Che Ibrahim, Muhammad Hanifi (2012) Removal of Zn(II) Ion from Aqueous Solution using Activated Carbon Prepared from Rice Husk Treated with Sodium Hydroxide. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The study of rice husk as potential activated carbon as a low-cost adsorbent to remove zinc (Zn) from Zn(II) ion solution was investigated. Raw rice husk as an agricultural waste was chosen for this project due to its huge amount of production during milling activities. The scope of this study covers from preparation of the rice husk activated carbon (RHAC) to the experimental works for removal of Zn(ll) ion from aqueous solution. The preparation involves three stages which are grinding to size of 63 11m. digestion and carbonization. 63 ~ raw rice husks were digested with 1.0 M sodium hydrochloride (NaOH) solution for 24 hours. The treated rice husks were then carbonized at 650°C for I hour in order to remove volatile organic constituents leaving behind highly porous carbonaceous materials. Once the activated carbon was prepared, mixing process with Zn(ll) ion solution at various contact time ranging from 5 to 180 minutes was carried out to study the adsorption capacity. In this study, pores development in rice husk \\as analyzed using FFSEM for each stage. Other analyses on rice husk activated carbon were also conducted using BET Surface Area Analyzer, Fourier Transmitter lnlrarcd Spectroscopy (FTIR), CHN Elemental Analyzer. X-ray Diffraction (XRD) and Energy-Dispersive X-ray Spectroscopy (EDX) for characterization study. The adsorption capacity towards metal ion was determined using Atomic Adsorption Spectroscopy (AAS). The results obtained from the adsorption study showed that rice husk has a potential to be converted to adsorbent for the removal of heavy metals.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 13 Nov 2013 17:09
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/10581

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