Recovering trace rare earth elements in environmental water

April 14, 2023 – 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 results are published in Environmental Technology & Innovation.

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