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http://dx.doi.org/10.9714/psac.2022.24.3.012

Study on removal of microplastics using magnetic separation  

Ueda, Reo (Graduate School of Engineering, Osaka University)
Akiyama, Yoko (Graduate School of Engineering, Osaka University)
Manabe, Yuichiro (Graduate School of Engineering, Osaka University)
Sato, Fuminobu (Graduate School of Engineering, Osaka University)
Publication Information
Progress in Superconductivity and Cryogenics / v.24, no.3, 2022 , pp. 12-18 More about this Journal
Abstract
In recent years, the impact of microplastics (MPs) on ecosystems is a serious problem. Since MPs are difficult to recover once they are dispersed into the environment, it is important to remove them at the source. We proposed a magnetic separation of primary MPs (plastics manufactured in minute sizes) sized 10-100 ㎛ that has not been removed in the sewage process, based on the magnetic seeding process. In this study, we used magnetite as a magnetic seeding agent, and conducted magnetic separation experiments in the continuous process using a superconducting solenoidal magnet to investigate the feasibility of practical magnetic separation system of MPs. As a result, 85% separation rate was obtained by continuous separation using high gradient magnetic separation (HGMS) with hydrophobically treated magnetite as a magnetic seeding agent.
Keywords
microplastics; magnetic separation; superconducting solenoidal magnet; sewage treatment; continuous processing; magnetic seeding; surface treatment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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