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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14845
Title: Removal of As(V) using iron oxide impregnated carbon prepared from Tamarind hull
Authors: Maiti, Abhijit
Agarwal V.
De S.
Basu J.K.
Published in: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Abstract: Iron oxide impregnated tamarind hull carbon (IOITHC) was developed for use as an adsorbent for the removal of As(V) from water. Tamarind hull was used as the source of carbonaceous material, which was first treated with ferric chloride and ammonium hydroxide solutions with successive calcination at 873-974 K in a muffle furnace for 1 h to prepare an arsenic adsorbent. The B.E.T surface area of IOITHC was found to be 304.6 m2 g-1 and the average iron content in the adsorbent was found to be 7 wt%. The point of zero charge (pHzpc) of IOITHC was found to be 6.9. As(V) and arsenic (as total) adsorption on IOITHC were investigated in batch mode using As(V) spiked distilled water and real contaminated groundwater (CGW). The effects of speed of agitation, adsorbent particle size, temperature, pH of the solution, and concentration of the adsorbate on the adsorption process were investigated. The maximum adsorption capacity of about 1.2 mg g-1 As(V) was achieved. The removal of As(V) on IOITHC was compared with the untreated tamarind hull carbon as well as with the activated commercial carbon and IOITHC was found to be better adsorbent. Arsenic adsorption from arsenic contaminated groundwater (CGW) on IOITHC in batch mode indicates that 98% removal was achieved for adsorbent loading of 3.0 g L-1 with initial arsenic concentration of 264 μg L-1. Desorption study of arsenic from As(V)-loaded IOITHC was performed using aqueous solution in the pH range of 3 to 12. Copyright © Taylor & Francis Group, LLC.
Citation: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering (2010), 45(10): 1207-1216
URI: https://doi.org/10.1080/10934529.2010.493783
http://repository.iitr.ac.in/handle/123456789/14845
Issue Date: 2010
Publisher: Taylor and Francis Inc.
Keywords: activated carbon
arsenate
arsenic contaminated groundwater
arsenic removal
Iron oxide impregnated carbon
ISSN: 10934529
Author Scopus IDs: 23994098600
7201950620
7202304528
55520926800
Author Affiliations: Maiti, A., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
Agarwal, V., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
De, S., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
Basu, J.K., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
Corresponding Author: Basu, J. K.; Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India; email: jkb@che.iitkgp.ernet.in
Appears in Collections:Journal Publications [PE]

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