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Adsorption of Copper, Zinc and Iron using Microwave Incinerated Rice Husk Ash (MIRHA) Columns

Fauzi, Faiz Hafzan (2008) Adsorption of Copper, Zinc and Iron using Microwave Incinerated Rice Husk Ash (MIRHA) Columns. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Microwave Incinerated Rice Husk Ash (MIRHA), produced from the rice husk is one ofthe low-cost materials that were used as a sorbent ofheavy metal. It was proven by lots of researchers around the world about the potential ofthe rice husk ash with different method of preparation. The main objective of the project is to determine the adsorption rate ofthe MIRHA by using the column method. The effects ofimportant factors, such as the flow rate, the influent concentration and bed depth will be studied. The rice husk ash was burned in controlled temperature. Furthermore, to ensure the MIRHA is in the adsorption zone, the MIRHA need to be immersed in weak acid for 24 hours. The project continues by preparing the fixed-bed column with the MIRHA placed inside the column with three different bed heights. The project also varied by using the Zinc, Copper and Iron in aqueous solution as the influent. Thomas, Adams- Bohart, and Yoon-Nelson models were applied to experimental data to predict the breakthrough curves using non-linear regression and to determine the characteristic parameters ofthe column useful for process design. The result obtained shows thatMIRHA was capable of adsorbing 100 %of heavy metal with different rates. The types of influent and the bed height also influencing the breakthrough time. Thomas model was found suitable for the normal description of breakthrough curve at the experimental condition, while Adams-Bohart model was only for aninitial part ofdynamic behaviour ofthe rice husk column. As the conclusion, the MIRHA is an efficient adsorbent and has a capable of removing 100 %the heavy metal in the experiment. The usage ofMIRHA as the heavy metal removal can be commercialized and this method can be applied in the wastewater treatment plant. The initial region ofbreakthrough curve was defined by Adams-Bohart model at all experimental condition studied while the full description of breakthrough could be accomplished by Thomas models. Lastly, the objective of the project was achieved.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Structures, materials and construction
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 24 Oct 2013 14:52
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/9742

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