{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T06:36:19Z","timestamp":1773815779152,"version":"3.50.1"},"reference-count":37,"publisher":"IWA Publishing","issue":"6","license":[{"start":{"date-parts":[[2021,8,17]],"date-time":"2021-08-17T00:00:00Z","timestamp":1629158400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,9,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Ozone, UV\/ozone, ozone\/persulfate (PS) and UV\/ozone\/PS systems were used to mineralize sulfonamides. Sulfadiazine (SDZ), sulfamerazine (SMR) and sulfamethazine (SMZ) were the target compounds. The novel contribution of this study is its determination of the effects of PS addition, sulfonamide structure, pH and salinity on sulfonamide mineralization in ozone-based systems. The mineralization rate of sulfonamides satisfied pseudo-first-order kinetics. The SMZ mineralization rate constant in ozone, UV\/ozone, ozone\/PS and UV\/ozone\/PS systems at pH 5 were 0.0058; 0.0101; 0.0069 and 0.0802 min\u22121, respectively, and those at pH 7 were 0.0075; 0.0116; 0.0083 and 0.0873 min\u22121, respectively. The increase in the number of methyl substituents in the heterocyclic group of SMZ and the corresponding increase in the steric hindrance of radical addition, reduced mineralization rates below those of SMR and SDZ. The addition of PS promoted sulfonamide mineralization in the ozone-based systems; conversely, salinity inhibited sulfonamide mineralization.<\/jats:p>","DOI":"10.2166\/wst.2021.325","type":"journal-article","created":{"date-parts":[[2021,8,17]],"date-time":"2021-08-17T18:54:36Z","timestamp":1629226476000},"page":"1379-1388","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":5,"title":["Mineralization of sulfonamides from wastewater using ozone-based systems"],"prefix":"10.2166","volume":"84","author":[{"given":"T. H.","family":"Ho","sequence":"first","affiliation":[{"name":"Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, 415 Chien Kung Road, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4964-139X","authenticated-orcid":false,"given":"C. 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