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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14671
Title: Comparison of treated laterite as arsenic adsorbent from different locations and performance of best filter under field conditions
Authors: Maiti, Abhijit
Thakur B.K.
Basu J.K.
De S.
Published in: Journal of Hazardous Materials
Abstract: Arsenic pollution in groundwater is a worldwide concern due to its chronic effects on human health. Numerous studies have been carried out to obtain cost-effective arsenic removal method. Adsorption using natural materials or its treated forms is found to be cost-effective technology. Raw laterite (RL) or its treated form (TL) is studied recently as arsenic adsorbent for aqueous system. Laterite composition varies with geographical location and extent of lateritization. The study on effects of arsenic adsorption with varying composition of laterite is not explored yet. Four laterite samples with different compositions are examined to remove arsenic from water. These laterite samples are activated using an optimized acid followed by base treatment method in order to determine the effects of RL composition on arsenic adsorption behavior of TL. Higher iron and aluminum containing RL samples show higher arsenic adsorption behavior. Similarly, TL obtained from higher iron and aluminum containing RL sample shows the higher specific surface area (130-180m2g-1) and pore volume (0.28-0.35mLg-1). Two household filters using TL are deployed in arsenic affected area of Barasat, 24 Parganas (N), West Bengal, India and their performance is monitored for about a year. © 2012 Elsevier B.V.
Citation: Journal of Hazardous Materials (2013), 262(): 1176-1186
URI: https://doi.org/10.1016/j.jhazmat.2012.06.036
http://repository.iitr.ac.in/handle/123456789/14671
Issue Date: 2013
Publisher: Elsevier
Keywords: Adsorption
Arsenic
Field trial
Ionic interference
Treated laterite
ISSN: 3043894
Author Scopus IDs: 23994098600
37098030100
55520926800
7202304528
Author Affiliations: Maiti, A., Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2G8, Canada
Thakur, B.K., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, India
Basu, J.K., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, India
De, S., Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, India
Funding Details: The authors acknowledge the funding provided by the Department of Science and Technology, New Delhi, Government of India , under the scheme of water technology initiative (DST/TM/WTI/2K11/295(G)).
Corresponding Author: De, S.; Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721 302, India; email: sde@che.iitkgp.ernet.in
Appears in Collections:Journal Publications [PE]

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