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Adsorption of Acid Dyes on Anionic Clays

Mohd Hakim Mohd Rashid, Mohd Hakim (2009) Adsorption of Acid Dyes on Anionic Clays. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The presence of colour in many industrial effluent streams especially from the textile industry is aesthetically undesirable. Traditionally both biological and chemical methods have been employed for dye removal from waste streams, but these techniques have not been successful due to its highly structured polymers which are very difficult to decompose. Many physical and chemical treatment methods including coagulation, precipitation, filtration, membrane separation and oxidation have been used for the treatment of dye-containing effluents. Over the last few decades, sorption (as adsorption, biosorption and ion exchange) has gained importance as an effective purification and separation technique used in wastewater treatment. Activated carbon has been the most widely used adsorbent because of its high capacity for the adsorption of organic species. However due to the difficulty, high cost and expensive regenerationof the activated carbon, clays are being considered as alternative low cost adsorbents. A potential candidate is the hydrotalcite, a type of layered double hydroxide (LDH), occurs as natural clay like mineral and can be readily synthesized by co-precipitation method.

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:24
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/1553

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