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The Effects of Multiple-Use of Polyethylene Terephthalate (PET) Bottles on Antimony Concentration

Azazian, Azahariman (2008) The Effects of Multiple-Use of Polyethylene Terephthalate (PET) Bottles on Antimony Concentration. Universiti Teknologi Petronas. (Unpublished)

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Abstract

This study was conducted to investigate the effect of multiple-use of polyethylene terephthalate (PET) mineral water bottle on antimony (Sb) migration from the bottle to the water. Three different brands ofPET bottles containing tap water were studied for a period of 24 weeks. The water in the bottlewas replaced oncea week and measured for its antimony content using the atomic absorption spectrometry (AAS). As a control, water samples were also left unchanged in each brand of bottle for a period of 24 weeks. The results were then compared. The results showed that traces of antimony were detected consistently in all water samples after 1 to 24 repetitive-use of all the brands of bottle. The range of antimony concentration detected was between 0.03 ppm to 0.37ppm. There were no significant differences in the amount of Sb measured for the three brands of bottles studied. Meanwhile, the weekly replaced water samples at the end of week 24 were compared to that of the un-replaced water samples for 24 weeks. The results confirmed that more Sb were detected at 24 weeks for the weekly replaced water samples compared to those unreplaced for 24 weeks. The results proved that re using PET bottles could lead to increased accumulation of antimony in the water consumed.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Polymers - Polymerisation
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 07 Nov 2013 12:22
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/10260

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