Management of 137Cs in electric arc furnace dust by solid-liquid extraction and treatment of contaminated wastewater using co-precipitation

P. Sopapan; S. Issarapanacheewin; T. Akharawutchayanon; K. Yubonmhat; P. Gunhakoon; W. Katekaew; N. Prasertchiewchan

Case Studies in Chemical and Environmental Engineering (Jun 2023)

Management of 137Cs in electric arc furnace dust by solid-liquid extraction and treatment of contaminated wastewater using co-precipitation

P. Sopapan,
S. Issarapanacheewin,
T. Akharawutchayanon,
K. Yubonmhat,
P. Gunhakoon,
W. Katekaew,
N. Prasertchiewchan

Affiliations

P. Sopapan: Corresponding author.; Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
S. Issarapanacheewin: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
T. Akharawutchayanon: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
K. Yubonmhat: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
P. Gunhakoon: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
W. Katekaew: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand
N. Prasertchiewchan: Radioactive Waste Management Center, Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand

Journal volume & issue: Vol. 7
p. 100283

Abstract

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Efficient decontamination of 137Cs in electric arc furnace dust (EAFD) was carried out using a solid-liquid extraction method and then the obtained wastewater contaminated with 137Cs was treated by a co-precipitation. The influences of pH, stirring time, settling time, and different radioactivity on removal efficiency were assessed. Depended on the initial concentration and the solid-liquid ratio, it is possible to reduce around 93–96% radioactivity from EAFD, meanwhile the removal efficiency of 137Cs from wastewater exhibits in excess of 99%. After treatment, the final solution was certified safe from 137Cs, while the radioactive sludge could be stored safely.

Published in Case Studies in Chemical and Environmental Engineering

ISSN: 2666-0164 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Environmental engineering; Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/case-studies-in-chemical-and-environmental-engineering

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