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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2120
Title: Competitive Adsorption of Arsenic and Fluoride onto Economically Prepared Aluminum Oxide/Hydroxide Nanoparticles: Multicomponent Isotherms and Spent Adsorbent Management
Authors: Rathore V.K.
Mondal, Prasenjit
Published in: Industrial and Engineering Chemistry Research
Abstract: The present study deals with adsorptive removal of arsenic and fluoride in single as well as bicomponent system using aluminum oxide/hydroxide nanoparticles (AHNP). For single component system, the Langmuir maximum adsorption capacity of the adsorbent is found as 833.33 ?g/g for arsenic and 2000 ?g/g for fluoride at optimum conditions. The adsorption process is well explained by Langmuir isotherm and pseudo-second-order kinetic models for both arsenic and fluoride. A real groundwater sample, having arsenic 512 ?g/L and fluoride 6300 ?g/L along with other ions, has also been treated successfully. Among different isotherms, the modified competitive Langmuir isotherm is found to be most suitable to represent the bicomponent system. Solidification of the spent adsorbent through brick formation is investigated, and this process is found to be an effective option for its management. Through economic evaluation, the adsorbent and treatment costs are found as ?86.89 INR/kg and 0.36 INR/L, respectively. © 2017 American Chemical Society.
Citation: Industrial and Engineering Chemistry Research (2017), 56(28): 8081-8094
URI: https://doi.org/10.1021/acs.iecr.7b01139
http://repository.iitr.ac.in/handle/123456789/2120
Issue Date: 2017
Publisher: American Chemical Society
ISSN: 8885885
Author Scopus IDs: 50162189900
57200197409
Author Affiliations: Rathore, V.K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Mondal, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Mondal, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: mondal2001@gmail.com
Appears in Collections:Journal Publications [CH]

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