{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T02:51:21Z","timestamp":1780455081719,"version":"3.54.1"},"reference-count":42,"publisher":"IWA Publishing","issue":"4","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2020,8,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The current work investigates the removal of two hazardous macrolide molecules, spiramycin and tylosin, by photodegradation under external UV-light irradiation conditions in a slurry photoreactor using titanium dioxide as a catalyst. The kinetics of degradation and effects of main process parameters such as catalyst dosage, initial macrolide concentration, light intensity and stirring rate on the degradation rate of pollutants have been examined in detail in order to obtain the optimum operational conditions. It was found that the process followed a pseudo first-order kinetics according to the Langmuir\u2013Hinshelwood model. The optimum conditions for the degradation of spiramycin and tylosin were low compound concentration, 1 g L\u22121 of catalyst dosage, 100 W m\u22122 light intensity and 560 rpm stirring rate. Then, a maximum removal (more than 90%) was obtained after 300 min of irradiation time. Furthermore, results show that the selection of optimized operational parameters leads to satisfactory total organic carbon removal rate (up to 51%) and biochemical oxygen demand to chemical oxygen demand ratio (\u223c1) confirming the good potential of this technique to remove complex macrolides from aqueous solutions.<\/jats:p>","DOI":"10.2166\/wst.2020.366","type":"journal-article","created":{"date-parts":[[2020,8,7]],"date-time":"2020-08-07T02:25:12Z","timestamp":1596767112000},"page":"695-703","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":5,"title":["Photocatalytic degradation efficiency of hazardous macrolide compounds using an external UV-light irradiation slurry reactor"],"prefix":"10.2166","volume":"82","author":[{"given":"Amel","family":"Ounnar","sequence":"first","affiliation":[{"name":"Centre de D\u00e9veloppement des Energies Renouvelables (CDER), 16340, Algiers, Algeria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdelkrim","family":"Bouzaza","sequence":"additional","affiliation":[{"name":"Universit\u00e9 de Rennes, Ecole Nationale Sup\u00e9rieure de Chimie de Rennes, CNRS, ISCR \u2013 UMR6226, F-35000 Rennes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lidia","family":"Favier","sequence":"additional","affiliation":[{"name":"Universit\u00e9 de Rennes, Ecole Nationale Sup\u00e9rieure de Chimie de Rennes, CNRS, ISCR \u2013 UMR6226, F-35000 Rennes, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatiha","family":"Bentahar","sequence":"additional","affiliation":[{"name":"Universit\u00e9 des Sciences et de la Technologie Houari Boumediene, 16111, Algiers, 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