title: A system coupling hybrid biological method with UV/O3 oxidation and membrane separation for treatment and reuse of industrial laundry wastewater.
abstract: The possibilities of application of a three-step system combining hybrid biological treatment followed by advanced UV/O3 oxidation with in situ generated O3 and membrane separation (ultrafiltration (UF) and nanofiltration (NF)) to treat and reuse the wastewater from an industrial laundry are presented. By the application of a hybrid moving bed biofilm reactor (HMBBR), the total organic carbon concentration was reduced for about 90 %. However, since the HMBBR effluent still contained organic contaminants as well as high concentrations of inorganic ions and exhibited significant turbidity (8.2 NTU), its further treatment before a possible reuse in the laundry was necessary. The UV/O3 pretreatment prior to UF was found to be an efficient method of the membrane fouling alleviation. During UF, the turbidity of wastewater was reduced below 0.3 NTU. To remove the inorganic salts, the UF permeate was further treated during NF. The NF permeate exhibited very low conductivity (27-75 μS/cm) and contained only small amounts of Ca(2+) and Mg(2+); thus ,it could be reused at any stage of the laundry process.
authors.affiliation: West Pomeranian University of Technology, Szczecin, Institute of Chemical Technology and Environment Engineering, ul. Pułaskiego 10, 70-322, Szczecin, Poland. sylwia.mozia@zut.edu.pl.
authors.forename: Sylwia
authors.identifier: http://orcid.org/0000-0001-7944-4701
authors.initials: S
authors.lastname: Mozia
authors.affiliation: West Pomeranian University of Technology, Szczecin, Faculty of Civil Engineering and Architecture, al. Piastów 50, 70-311, Szczecin, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Janus
authors.affiliation: West Pomeranian University of Technology, Szczecin, Institute of Chemical Technology and Environment Engineering, ul. Pułaskiego 10, 70-322, Szczecin, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Brożek
authors.affiliation: West Pomeranian University of Technology, Szczecin, Faculty of Civil Engineering and Architecture, al. Piastów 50, 70-311, Szczecin, Poland.
authors.forename: Sławomira
authors.initials: S
authors.lastname: Bering
authors.affiliation: West Pomeranian University of Technology, Szczecin, Faculty of Civil Engineering and Architecture, al. Piastów 50, 70-311, Szczecin, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Tarnowski
authors.affiliation: West Pomeranian University of Technology, Szczecin, Faculty of Civil Engineering and Architecture, al. Piastów 50, 70-311, Szczecin, Poland.
authors.forename: Jacek
authors.initials: J
authors.lastname: Mazur
authors.affiliation: West Pomeranian University of Technology, Szczecin, Institute of Chemical Technology and Environment Engineering, ul. Pułaskiego 10, 70-322, Szczecin, Poland.
authors.forename: Antoni W
authors.initials: AW
authors.lastname: Morawski
mesh_terms: D019149:Bioreactors; D007220:Industrial Waste; D007221:Industry; D008567:Membranes, Artificial; D010126:Ozone / Q000737:chemistry; D059027:Recycling / Q000379:methods; D014462:Ultrafiltration; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry* / Q000706:statistics & numerical data; D018508:Water Purification / Q000379:methods*
chemical_list: D007220:Industrial Waste; D008567:Membranes, Artificial; D010126:Ozone; D062065:Wastewater
keywords: HMBBR; Industrial laundry wastewater; Nanofiltration; UV/O3; Ultrafiltration