%0 Journal Article %T Sulfamethazine removal by means of a combined process coupling an oxidation pretreatment and activated sludge culture – preliminary results %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Institut National des Sciences Appliquées et de Technologie [Tunis] (INSAT) %+ Laboratoire de recherche de Catalyse d'Electrochimie de Nanomatériaux et leurs applications et de didactique (CENAD) %A Saidi, Imen %A Fourcade, Florence %A Floner, Didier %A Soutrel, Isabelle %A Bellakhal, Nizar %A Amrane, Abdeltif %A Geneste, Florence %< avec comité de lecture %@ 0959-3330 %J Environmental Technology %I Taylor & Francis: STM, Behavioural Science and Public Health Titles %V 38 %N 21 %P 2684-2690 %8 2017 %D 2017 %R 10.1080/09593330.2016.1273395 %M 27973980 %K sulfamethazine %K combined process %K Biological treatment %K Activated sludge %K electro-oxidation pretreatment %Z Chemical Sciences/Other %Z Environmental Sciences/Environmental EngineeringJournal articles %X A coupled electrochemical process and biological treatment was used to remove a biorecalcitrant antibiotic: sulfamethazine (SMT). The pretreatment was performed in a home-made flow cell involving graphite felt as a working electrode at potentials of 1 and 1.6 V/saturated calomel electrode (SCE); it was followed by a biological process involving activated sludge purchased from a local wastewater treatment plant. Activated sludge cultures of pretreated and non-pretreated SMT solution were carried out for 3 weeks, and different parameters were monitored, especially total organic carbon (TOC) and SMT concentrations. high-performance liquid chromatography results revealed that the target molecule was not assimilated by activated sludge. However, and confirming the improvement previously observed for the biological oxygen demand/chemical oxygen demand (BOD5/COD) ratio, from 0.08 before electrolysis to 0.58 after electrolysis, a pretreatment step in oxidation at 1.6 V/SCE led to a fast decrease of TOC during the subsequent biological treatment, since the mineralization yields increased from 10% for a non-pretreated SMT solution to 76.6% after electrolysis in oxidation (1.6 V/SCE), confirming the efficiency of coupling the electro-oxidation process with a biological treatment for the mineralization of SMT. Moreover, when the electrolysis was performed at 1 V/SCE, no biodegradation was observed, underlining the importance of the electrochemical pretreatment. %G English %2 https://univ-rennes.hal.science/hal-01558363/document %2 https://univ-rennes.hal.science/hal-01558363/file/Sulfamethazine%20removal%20by%20means%20of%20a%20combined%20process_accepted.pdf %L hal-01558363 %U https://univ-rennes.hal.science/hal-01558363 %~ SDE %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ SCR_MACSE %~ GIP-BE %~ SCR-CIP %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ TEST-HALCNRS %~ UR1-MMS %~ TEST2-HALCNRS