Reductive Adsorption of Chromium(VI) with Activated Carbon

Hoang Anh Viet; Chen Ya Wen; Wang Ya-Fen; Nishihama Syouhei; Yoshizuka Kazuharu

doi:10.1051/matecconf/202133304004

MATEC Web of Conferences (Jan 2021)

Reductive Adsorption of Chromium(VI) with Activated Carbon

Hoang Anh Viet,
Chen Ya Wen,
Wang Ya-Fen,
Nishihama Syouhei,
Yoshizuka Kazuharu

Affiliations

Hoang Anh Viet: Department of Chemical Engineering, The University of Kitakyushu
Chen Ya Wen: Department of Environmental Engineering, Chung Yuan Christian University
Wang Ya-Fen: Department of Environmental Engineering, Chung Yuan Christian University
Nishihama Syouhei: Department of Chemical Engineering, The University of Kitakyushu
Yoshizuka Kazuharu: Department of Chemical Engineering, The University of Kitakyushu

DOI: https://doi.org/10.1051/matecconf/202133304004
Journal volume & issue: Vol. 333
p. 04004

Abstract

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Reductive adsorption of chromium (Cr) has been investigated, employing coal-based activated carbon with batchwise study. The adsorption was carried out by varying parameters such as pH of the aqueous solution and contact time. Cr(III) was hardly adsorbed on activated carbon, and it was precipitated at high pH region. High adsorption amounts of Cr(VI) was obtained at pH range 4.5 – 5.5. In the adsorption process, reduction of Cr(VI) to Cr(III) was occurred at especially acidic pH region, and thus most of Cr remained in the aqueous solution in this pH region was Cr(III).

Published in MATEC Web of Conferences

ISSN: 2261-236X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.matec-conferences.org

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