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Updated: May 19, 2026

Measurement of Outgassing Rates of Steels
Published on: December 13, 2016
Mechanisms of hydrogen sulfide removal with steel making slag
Kyunghoi Kim1, Satoshi Asaoka, Tamiji Yamamoto
1Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan. kobilekr@hiroshima-u.ac.jp
Abstract:
In the present study, we experimentally investigated the removal of hydrogen sulfide using steel-making slag (SMS) and clarified the mechanism of hydrogen sulfide removal with the SMS. The results proved that SMS is able to remove hydrogen sulfide dissolved in water, and the maximum removal amount of hydrogen sulfide per unit weight of the SMS for 8 days was estimated to be 37.5 mg S/g. The removal processes of hydrogen sulfide were not only adsorption onto the SMS, but oxidation and precipitation as sulfur. The chemical forms of sulfide adsorbed onto the SMS were estimated to be sulfur and manganese sulfide in the ratio of 81% and 19%, respectively. It is demonstrated here that the SMS is a promising material to remediate organically enriched coastal sediments in terms of removal of hydrogen sulfide. Furthermore, using SMS is expected to contribute to development of a recycling-oriented society.
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