title: Characterization of cyclodextrin containing nanofilters for removal of pharmaceutical residues.
abstract: Due to the increasing amount of persistent organic pollutants (POPs) in general and pharmaceutical residues in particular in municipal wastewater, the efficiency of water treatment technologies should be improved. Following the biological treatment of wastewater nanofiltration offers a possible way for the removal of POPs. In this study β-cyclodextrin containing nanofilters having different chemical composition and thickness (1.5-3.5mm) were investigated. For their characterization, their adsorption capacity was determined applying ibuprofen containing model solution and total organic carbon (TOC) analyzer. It could be established that the regeneration of nanofilters with ethanol and the application of inorganic additives (NaCl, NaHCO3, NH4HCO3) increased the adsorption capacity of nanofilters. The best results were achieved with chemical composition of 30m/m% β-cyclodextrin polymer beads and 70m/m% ultra-high molecular weight polyethylene in the presence of 12mmol ammonium hydrogen carbonate/nanofilter.
authors.affiliation: Eötvös Loránd University, Laboratory of Environmental Chemistry and Bioanalytics, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary.
authors.forename: Laura
authors.initials: L
authors.lastname: Jurecska
authors.affiliation: Eötvös Loránd University, Laboratory of Environmental Chemistry and Bioanalytics, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary.
authors.forename: Péter
authors.initials: P
authors.lastname: Dobosy
authors.affiliation: Eötvös Loránd University, Laboratory of Environmental Chemistry and Bioanalytics, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary.
authors.forename: Katalin
authors.initials: K
authors.lastname: Barkács
authors.affiliation: CycloLab Cyclodextrin Research & Development Laboratory Ltd., Illatos út 7, H-1097 Budapest, Hungary.
authors.forename: Éva
authors.initials: É
authors.lastname: Fenyvesi
authors.affiliation: Eötvös Loránd University, Laboratory of Environmental Chemistry and Bioanalytics, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary. Electronic address: zaray@ludens.elte.hu.
authors.forename: Gyula
authors.initials: G
authors.lastname: Záray
mesh_terms: D000327:Adsorption; D001639:Bicarbonates / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D003505:Cyclodextrins / Q000737:chemistry*; D005374:Filtration / Q000379:methods; D036103:Nanotechnology / Q000379:methods; D011095:Polyethylenes / Q000737:chemistry; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
chemical_list: D001639:Bicarbonates; D002482:Cellulose; D003505:Cyclodextrins; D011095:Polyethylenes; D062065:Wastewater; D014874:Water Pollutants, Chemical; C041953:cyclodextrin polymer; C111601:ultra-high molecular weight polyethylene
keywords: Ibuprofen; Micro-pollutants; Nanofiltration; Sorption; β-Cyclodextrin