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Adsorption of Zinc from Water by Coconut Coir Carbon

Nasir, Faerah (2008) Adsorption of Zinc from Water by Coconut Coir Carbon. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The research is to investigate the adsorption of zinc in wastewater by coconut coir carbon. Industrial wastewater is increasingly contaminated by toxic metal ions which cause serious enviromnental problem. There is a need to remove zinc from water/wastewater to meet the standard for discharge of 5 milligrams per liter (mg/1) Department of Enviromnent (2005). The objective of the study is to produce low cost adsorbents from readily available material to remove zinc from water/wastewater. The adsorbent is coconut coir carbon which is prepared through chemical activation process by treating the coir with potassium hydroxide and subjected to physical activation at 700.750 °C for 30 minutes in an oxygen.free oven. The optimum conditions for removal of zinc by studying the effect of contact time, pH, and initial concentration of zinc, and adsorbent particle size on the zinc adsorption. The experiment conducted shows that the optimum contact time for batch studies was 3 hours and optimum pH was 6. Both optimum conditions were used to evaluate the effect of adsorbent dose which shows the maximum adsorption at adsorbent concentration of 1 giL. The adsorption was found to follow Langmuir isotherm with Langmuir maximum capacity X., of 6.184. The adsorption follows pseudo-second order kinetics with initial rate of 1.75 mg g-1 min"1 • Adsorption of zinc from water by coconut coir carbon was proved to be effective as removal method, since coconut coir is cheap and readily available, it has the potential to be used for removal of zinc from . water.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Water
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/7804

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