The Use of Coconut Shells as Symmetric Membranes for Cd, Cr and Fe Separation from Waste Water

Labib, shiraz and Dakroury, Gehan and Abou el-Nour, Farid (2010) The Use of Coconut Shells as Symmetric Membranes for Cd, Cr and Fe Separation from Waste Water. ISOTOPE & RAD. RES, 42. pp. 1-12. ISSN 0021-1907


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The environmental pollution by toxic metals occurs through agricultural and industrial processes, consequently waste disposal cause large environmental impact, economic and health problems. So, environmental regulations require the removal of heavy metals from waste water. Low cost agricultural by-products such as coconut shells were applied as symmetric membranes for radioactive isotopes removal of Cd, Cr and Fe from synthetic waste water. Especially membrane process offers high quality technique when compared to other techniques used in heavy metal removals. The treated coconut shells dried at 100 0C/48h were analyzed using energy dispersive x-ray (EDX) for elemental analysis, Fourier transform infrared (FTIR) for chemical characterization, Hg-porosimetry for average pore diameter measurements. Coconut shells thermally treated at 120-300 0C/2h were analyzed using Brunauer-Emmet-Teller (BET) method for specific surface area measurements, scanning electron microscope (SEM) for microstructural investigations. Membrane performance studies were conducted for radioactive isotopes of Cd, Cr and Fe separation from synthetic waste water solution where the transport of different ions and/or their separations through the selected membranes were interpreted using flux measurements. Also, selectivity measurements were studied in order to achieve the goal of obtaining high selective symmetric membranes with good separative properties.

Item Type: Article
Subjects: Chemistry
Divisions: Female College of Sciences and Arts - Khamis Mushyait > Islamic Studies
Depositing User: Gehan Dakrory
Date Deposited: 18 Jan 2017 22:25
Last Modified: 18 Jan 2017 22:25

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