title: Biofilms in bioremediation and wastewater treatment: characterization of bacterial community structure and diversity during seasons in municipal wastewater treatment process.
abstract: The bacterial community structure and diversity were assessed at the scale of rotating biodisk procedure (RB) in a semi-industrial pilot plant. As well, the Salmonella community was particularly monitored, and the effects of ultraviolet (UV-C254) on the bacterial community were studied. The identification of dominant bacteria revealed the presence of beneficial and useful species that could play an important role in the process of wastewater purification. Several species as Enterobacter agglomerans, Cronobacter sakazakii, and Pantoea agglomerans known for their bioremediation activities were revealed in the majority of biofilm samples. Common detection of Salmonella community provides evidence that the RB system did not seriously affect Salmonella. Furthermore, the investigation on the (UV)-C254inactivation of the whole bacterial community, in secondary treated wastewater, showed variable UV resistance results. No Salmonella detection was registered at a dose of around 1440 mW s cm-2since a total disappearance of Salmonella was recorded.
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia. yousra_turki@yahoo.fr.
authors.lastname: Yousra Turki
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Ines
authors.initials: I
authors.lastname: Mehri
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Rim
authors.initials: R
authors.lastname: Lajnef
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Asma Ben
authors.initials: AB
authors.lastname: Rejab
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Amel
authors.initials: A
authors.lastname: Khessairi
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Hanene
authors.initials: H
authors.lastname: Cherif
authors.affiliation: Laboratoire Microorganisme and Biomolécules Actives, Département de Biologie, Faculté des Sciences de Tunis, Campus Universitaire, 2092, Tunis, Tunisia.
authors.forename: Hadda
authors.initials: H
authors.lastname: Ouzari
authors.affiliation: Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia.
authors.forename: Abdennaceur
authors.initials: A
authors.lastname: Hassen
mesh_terms: D001419:Bacteria / Q000235:genetics / Q000302:isolation & purification; D001673:Biodegradation, Environmental; D018441:Biofilms; D004269:DNA, Bacterial / Q000235:genetics / Q000302:isolation & purification; D012621:Seasons; D062065:Wastewater / Q000382:microbiology*; D018508:Water Purification / Q000379:methods*
chemical_list: D004269:DNA, Bacterial; D062065:Wastewater
keywords: Bacterial communities; Biofilm; Bioremediation; Rotating biodisk process; Water pollution