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Title: Arsenic adsorbent derived from the ferromanganese slag
Authors: Jain N.
Maiti, Abhijit
Published in: Environmental Science and Pollution Research
Abstract: Arsenic-contaminated groundwater has a severe negative impact on the health of living beings. Groundwater majorly contains arsenite (As(III)) as well as arsenate (As(V)). Among these two, the arsenite species are more carcinogenic, mobile, and lethal. Hence, it is more difficult to remove by conventional water treatment methods. Ferromanganese slag, waste generated from steel industries, has been utilized in this study for the development of arsenic adsorbent. A chemical treatment method is applied to the ferromanganese slag to prepare efficient arsenic adsorbent, and it is easy to scale up. An adsorbent with the capacity for simultaneous oxidation of As(III) and adsorption of total arsenic species can be efficient for arsenic decontamination. X-ray photoelectron spectroscopy and X-ray absorption near edge spectra techniques prove the As(III) oxidation capability of the developed material is about 70 ± 5% based on initial As(III) concentration. The adsorbent not only oxidizes the As(III) species but also adsorbs both the arsenic species. The Langmuir isotherm model estimates the maximum adsorption capacities at the equilibrium concentration of 10 μg/L are 1.010 ± 0.004 mg/g and 1.614 ± 0.006 mg/g for As(III) and As(V), respectively. The rate of adsorption of As(III) was higher compared to the As(V), which was confirmed by the pseudo-second-order kinetic model. Therefore, the treated water quality meets the World Health Organization and Indian drinking water standards. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
Citation: Environmental Science and Pollution Research, 28(3): 3230-3242
Issue Date: 2021
Publisher: Springer Science and Business Media Deutschland GmbH
Keywords: Adsorption
Arsenite oxidation
Metallurgical waste
Value-added product
ISSN: 9441344
Author Scopus IDs: 57210732499
Author Affiliations: Jain, N., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, Uttar Pradesh 247001, India
Maiti, A., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, Uttar Pradesh 247001, India
Funding Details: The funding agencies of this study are MHRD, Government of India, and Department of Science and Technology (DST), Ministry of Science and Technology, India, through the IMPRINT 2A project scheme (project file number IMP/2018/001228). Acknowledgments Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी: IMP/2018/001228; Ministry of Human Resource Development, MHRD; Ministerio de Ciencia y Tecnología, MICYT
Corresponding Author: Maiti, A.; Department of Polymer and Process Engineering, Saharanpur Campus, India; email:
Appears in Collections:Journal Publications [PE]

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