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dc.contributor.authorKaraman, Rafik
dc.contributor.authorKhamis, Mustafa
dc.contributor.authorQuried, Mohannad
dc.contributor.authorHalabieh, Rawan
dc.contributor.authorMakharzeh, Iman
dc.contributor.authorManassra, Adnan
dc.contributor.authorAbbadi, Jehad
dc.contributor.authorQtait, Alaa
dc.contributor.authorNasser, Ahmed
dc.date.accessioned2018-09-10T18:01:47Z
dc.date.available2018-09-10T18:01:47Z
dc.date.issued2013-08-02
dc.identifier.citationRafik Karaman , Mustafa Khamis , Mohannad Quried , Rawan Halabieh , Iman Makharzeh , Adnan Manassra , Jehad Abbadi , Alaa Qtait , Sabino Aurelio Bufo , Ahmed Nasser & Shlomo Nir (2012) Removal of diclofenac potassium from wastewater using clay-micelle complex, Environmental Technology, 33:11, 1279-1287, DOI: 10.1080/09593330.2011.619582en_US
dc.identifier.issn1479-487X
dc.identifier.urihttps://dspace.alquds.edu/handle/20.500.12213/884
dc.description.abstractThe presence of an ionized carboxyl group in the widely used non-steroidal anti-inflammatory (NSAID) drug diclofenac potassium results in a high mobility of diclofenac and in its low sorption under conditions of slow sand filtration or subsoil passage. No diclofenac degradation was detected in pure water or sludge during one month. Tertiary treatments of wastewater indicated that the effective removal of diclofenac was by reverse osmosis, but the removal by activated carbon was less satisfactory. This study presents an efficient method for the removal of diclofenac from water by micelle–clay composites that are positively charged, have a large surface area and include large hydrophobic domains. Adsorption of diclofenac in dispersion by charcoal and a composite micelle (otadecyltrimethylammonium [ODTMA] and clay [montmorillonite]) was investigated. Analysis by the Langmuir isotherm revealed that charcoal had a somewhat larger number of adsorption sites than the composite, but the latter had a significantly larger binding affinity for diclofenac. Filtration experiments on a solution containing 300 ppm diclofenac demonstrated poor removal by activated carbon, in contrast to very efficient removal by micelle–clay filters. In the latter case the weight of removed diclofenac exceeded half that of ODTMA in the filter. Filtration of diclofenac solutions at concentrations of 8 and 80 ppb yielded almost complete removal at flow rates of 30 and 60mLmin−1. One kilogram of ODTMA in the micelle–clay filter has been estimated to remove more than 99% of diclofenac from a solution of 100 ppb during passage of more than 100m3.en_US
dc.description.sponsorshipBeit-Jala Pharmaceutical Co. is thanked for the supply of diclofenac potassium. Special thanks to Dr. Saleh Abu-Lafi for technical assistance. This work was supported by a grant from the USAID-MERC program.en_US
dc.language.isoen_USen_US
dc.publisherTaylor & Francisen_US
dc.subjectdiclofenac potassiumen_US
dc.subjectmicelle–clay complexen_US
dc.subjectwastewater treatmenten_US
dc.subjectremoval of anti-inflammatory drugsen_US
dc.subjectkinetic studies of NSAID agentsen_US
dc.titleRemoval of diclofenac potassium from wastewater using clay-micelle complexen_US
dc.typeArticleen_US


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