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, dissertation, 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.

Removal of Fluoride from Drinking Water Using Egg Shells

I NYOMAN , PRASETYA PERMANA (2013) Removal of Fluoride from Drinking Water Using Egg Shells. Universiti Teknologi PETRONAS. (Unpublished)

[img] PDF
Download (714Kb)


Fluoride is one of the ions that naturally occurring and often found in ground or river water both in high and low concentration where its origin might come naturally or anthropogenic. Fluoride in concentration above 1.5 ppm is having a bad side effect to human health since it causes fluorosis that increases the hardness of bones and teeth while reducing their elasticity, thus making the bones brittle. Removal of fluoride or defluridation is often required in order to reduce the concentration of fluoride in drinking water below its safe level before being consumed. There are many techniques that can be used in order to reduce the concentration of fluoride in water such as adsorption, reverse osmosis, precipitation, and electrodialysis. Adsorption is one of the defluoridation methods that offer low cost and acceptable efficiency without removing other important ions from the water. However its cost and efficiency is highly dependent on its type of adsorbent. Egg shells, a cheap waste product from food industry, are the chosen adsorbent in this study, where it potential of being an adsorbent of fluoride is being tested by varying the pH and the adsorbent amount. From the study, it is seen that the optimum pH of the adsorption lies at pH around pH5 with highest efficiency of 0.1334942 mgfluoride/gegg shell. Its capability of regeneration is also being tested and NaOH proven to be the effective reagents for its regeneration process. A further study is suggested on looking at the effect of time od the adsorption amount and also further study regarding which is more feasible between regenerating the used eggshell or replace it with a new one.

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: 09 Oct 2013 11:07
Last Modified: 09 Oct 2013 11:07
URI: http://utpedia.utp.edu.my/id/eprint/8447

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...