Removal of Microplastics via Tannic acid-mediated Conglobulation
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Microplastics have caused great concern worldwide recently due to their ubiquitous presence. With microplastics being increasingly detected in ocean's, it is urgently necessary to evaluate their presence during coagulation and ultrafiltration processes. Previous studies showed low PE removal efficiency was observed using the traditional process that Al-based salts and Fe-based salts. In the case of the fine particle is made larger size, removed better fine particle removal efficiency can be obtained. We tried to increase the removal efficiency by using harmless chitosan and tannic acid to increase the size of the fine particles and to form a coordination complex with Fe3+ of the catechol group of tannic acid. Insight from Dopa-metal coordination in mussel foot protein. In this study, coordination complex was used and the removal efficiency of fine particles of 0.5 µm size was 97%. In the cytotoxicity, a result of causing inflammation by concentration of microplastic was obtained.