2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 17 - Sep 19, 2022新潟大学 五十嵐キャンパス
2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 17 - Sep 19, 2022新潟大学 五十嵐キャンパス
[S2-08]Fundamental study on enhancement of mineral dissolution by natural chelating agent[Presentation award entry]
*Sena Kikuchi1, Jiajie Wang1, Noriyoshi Tsuchiya1(1. Tohoku Univ. Environmental sci.)
Keywords:
Chelator,Mineral dissolution,Plant metabolite,Silicates
The use of chelating agents has been reported to enhance the dissolution rate of silicate minerals. In this study, basic dissolution experiments of silicate minerals with plant metabolites, which are naturally occurring chelating agents, were conducted. As a result, certain elements were extracted by plant metabolites. Also in pH, all solutions containing plant metabolites were partially elevated due to the dissolution of silicates. This result could be expected to suppress ocean acidification and sequester CO2 due to pH increase and CO2 mineralization.