biostudies-literatureWu LNational Natural Science Foundation of China33626-33636https://www.ebi.ac.uk/biostudies/studies/S-EPMC9042291biostudies-literatureUnknown11(53)Alkaline substances could activate peroxymonosulfate (PMS) for the removal of organic pollutants, but relatively high alkali consumption is generally required, which can cause too high pH of the solution after the reaction and lead to secondary pollution. Within this study, PMS activated by a relatively low dosage of Ca(OH)<sub>2</sub> (1 mM) exhibited excellent efficiency in the removal of bisphenol S (BPS). The pH of the solution declined to almost neutral (pH = 8.2) during the reaction period and conformed to the direct emission standards (pH = 6-9). In a typical case, BPS was completely degraded within 240 min and followed the kinetics of pseudo-first-order. The degradation efficiency of BPS depended on the operating parameters, such as the Ca(OH)<sub>2</sub>, PMS and BPS dosages, initRSC advancesCa(OH)<sub>2</sub>-mediated activation of peroxymonosulfate for the degradation of bisphenol S.PMC90422914206703442067058Wu LWang PZhang YLin YYan CNie MChen SDing MfalseCa(OH)<sub>2</sub>-mediated activation of peroxymonosulfate for the degradation of bisphenol S.Alkaline substances could activate peroxymonosulfate (PMS) for the removal of organic pollutants, but relatively high alkali consumption is generally required, which can cause too high pH of the solution after the reaction and lead to secondary pollution. Within this study, PMS activated by a relatively low dosage of Ca(OH)<sub>2</sub> (1 mM) exhibited excellent efficiency in the removal of bisphenol S (BPS). The pH of the solution declined to almost neutral (pH = 8.2) during the reaction period and conformed to the direct emission standards (pH = 6-9). In a typical case, BPS was completely degraded within 240 min and followed the kinetics of pseudo-first-order. The degradation efficiency of BPS depended on the operating parameters, such as the Ca(OH)<sub>2</sub>, PMS and BPS dosages, init2021-01-01T00:00:00Z2021 Oct2025-04-19T00:25:44.194Z2024-11-06T23:35:19.28ZS-EPMC90422913549752610.1039/d1ra05286a