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Removal of Heavy Metals from Wastewater Using Iron Plaque of Typha-latifolia & Bacterial Precipitated Fe(OH)3 Rich Soil (A Natural Biogenic Iron Oxide)


Removal of Heavy Metals from Wastewater Using Iron Plaque of Typha-latifolia & Bacterial Precipitated Fe(OH)3 Rich Soil (A Natural Biogenic Iron Oxide)
Authors : Brij Kishor
Publication Date: 07-05-2014

Authors

Author(s):  Brij Kishor

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol. 3 - Issue 5 (May - 2014)

e-ISSN:   2278-0181

Abstract

This paper examines the use of iron plaque of Typha-latifolia & bacterial precipitated Fe[OH]3 rich soil [Natural Biogenic Iron Oxide] for Removal of Chromium [Cr+6] & Copper [Cu+] from waste water. In this work sorption of Chromium [Cr+6] & Copper [Cu+] by iron plaque of Typha-latifolia & bacterial precipitated Fe(OH)3 rich soil has been studied. The adsorption capacity for Chromium [Cr+6] & Copper [Cu+] on the iron plaque of Typha-latifolia increased with the decreasing of media size and the maximum uptake were 0.0229 mgCr/g, 0.048 mgCu/g at 298.15 K. In the batch system adsorption equilibrium of Chromium [Cr+6] was attained at 180 min, the removal is then almost stabilizing after 180 min. implying that the equilibrium has been reached, and the optimal media size of [Iron plaque of Typha-latifolia] was 150 μ. The maximum sorption efficiencies at equilibrium were 70.6 %, 84.2 %, 89.0 %, 91.6 % for Chromium [Cr+6] ion at 1.18 mm, 600 μ, 300 μ, 150 μ media size. The optimal media size of [iron plaque of Typha-latifolia] for Copper [Cu+] ion was 75μ & the maximum sorption efficiencies were 64 %, 84 %, 96.2 % for 300 μ, 150 μ, 75μ media size. And the adsorption capacity of Chromium [Cr+6] on the bacterial precipitated Fe[OH]3 rich soil increased with the increasing of media size and the maximum adsorption capacity for Chromium [Cr+6] ion on the bacterial precipitated F[(OH]3 rich soil was 0.022 mgCr/g at 298.15 K & the maximum sorption efficiency was 86%. The characterization of iron plaque consists of Scanning Eectron Microscopy [SEM], Energy-dispersive X-ray spectroscopy [EDX].

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