Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Characterization of Alumina and Removal of Sulphate Ions in Aqueous Stream Using Alumina Prepared by Precipitation Method

SITI NOREHAN BINTI JAAFAR, SITI NOREHAN (2010) Characterization of Alumina and Removal of Sulphate Ions in Aqueous Stream Using Alumina Prepared by Precipitation Method. Universiti Teknologi Petronas. (Unpublished)

Download (1MB) | Preview


Several studies have been done on discovering the potential of alumina as an adsorbent to remove heavy metal such as cadmium and anionic entities such as fluoride and phosphates. The main objective of this research is to produce aluminium oxide (Al2O3) via Precipitation method using only aluminium salt (AlCl3) and ammonium hydroxide (NH4OH) as starting materials. White gel precipitate was formed from this reaction. The precipitate was filtered, calcined, ground and sieved to get alumina particles with desired particles size and adsorbent characteristics. The calcinations temperature was chose to be 750oC and the particles size of the alumina was in a range of 500-1000 micrometer. The alumina produced was characterized to know its organic structure, surface area and surface morphology. The adsorption capacity towards metal ion was determined using DR/4000 Spectrophotometer by applying Method 8051. The synthesized adsorbent has BET surface area of 166 m2/g and average pore diameter of 8.6 nm. Percent metal uptakes of sulphate ion were increased with increasing concentration of initial sulphate concentrations. The adsorption was optimized at the initial concentration of 50 ppm for synthesized alumina and 40 ppm for commercialized alumina. Adsorption of sulphate ion onto surface of alumina has occurred proportionally with increasing contact time while equilibrium point was attained after 45 minutes for synthesized alumina and 55 minutes for commercialized alumina. The data of adsorption studies on synthesized alumina was found to be fitted the Langmuir and Freundlich isotherm with linear regression constant of 0.99 and 0.98 respectively while commercialized alumina can be represented by Langmuir model.Kinetic study shows that the adsorption using synthesized and commercialized alumina follows pseudo second order kinetics with correlation coefficient of 0.96 and 0.98 respectively which relies on the assumption that chemisorptions may be the rate limiting step.

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 03 Nov 2011 11:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1156

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...