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Home NEWS Science News Chemistry

Treasure hunt in hot springs?

Bioengineer by Bioengineer
April 14, 2023
in Chemistry
Reading Time: 2 mins read
0
Overview of rare earth recovery using P-yeast
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The demand for precious metals and rare earths is expected to continue increasing in the future. Due to limited production areas, recycling from precision equipment and recovering from seawater and hot spring water are needed to ensure a stable supply.

Overview of rare earth recovery using P-yeast

Credit: Masayuki Azuma, Osaka Metropolitan University

The demand for precious metals and rare earths is expected to continue increasing in the future. Due to limited production areas, recycling from precision equipment and recovering from seawater and hot spring water are needed to ensure a stable supply.

A research group led by Professor Masayuki Azuma and Associate Professor Yoshihiro Ojima of the Osaka Metropolitan University Graduate School of Engineering has successfully developed an adsorbent material that can selectively recover rare earth elements (REEs) using environmentally friendly and inexpensive baker’s yeast and trimetaphosphate, which is used as a food additive.

The research group conducted experiments using synthetic seawater and hot spring water to evaluate the performance of this material in a real environment. As a result, it was confirmed that the material can selectively adsorb REEs even when using hot spring water with an REE concentration of several to several tens of ppb (μg/L) and a very high content of other components.

“This new technology is expected to contribute to the realization of a metal resource-circulating society and a safe society through environmental purification. In the future, we will continue to conduct experiments on a variety of environmental water with the aim of establishing a system capable of treating large quantities of metal resources through continuous operation,” said Professor Azuma.

The results were published in the Environmental Technology & Innovation.

###

About OMU 

Osaka Metropolitan University is a new public university established in April 2022, formed by merger between Osaka City University and Osaka Prefecture University. For more research news visit https://www.omu.ac.jp/en/ or follow @OsakaMetUniv_en and #OMUScience.



Journal

Environmental Technology & Innovation

DOI

10.1016/j.eti.2023.103093

Method of Research

Experimental study

Subject of Research

Not applicable

Article Title

Adsorption of rare earth ions from synthetic seawater and hot spring water using phosphorylated yeast

Article Publication Date

2-Mar-2023

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