Preliminarily comparative performance of removing bisphenol-S by ferrate oxidation and ozonation

Abstract Bisphenol-S (BS) has recently raised public concerns for its adverse effect on the health safety and ecological security. BS concentrations were detected in many water resources, ranging from 10 ng L −1 to 300 μg , so that various purification techniques have been sought remove BS. This study investigated performance of ozonation ferrate oxidation degradation since they are both promising oxidants with high redox potential among treatment chemicals. It was observed ozone can achieve over 99% concentration reduction up 22.5% DOC dosing 0.036 mM either or ozone. The vibrio fisheri toxicity exhibited a decline treated samples after oxidation. According mass spectra analyzed, pathways proposed products (OPs) identified. by followed similar route four common OPs (OP-249; OP-497-a; OP-497-b, OP-201) detected. While produced one more intermediate (OP-217), did not, which is attributed intensified decomposition ozonation. major impact this comparable removing BS, further research continuing necessary explore removal waters complex matrixes (e.g., natural organic matter contents), investigate mechanisms depth, conduct pilot-scale full-scale trials establish operational database running and/or practical world.