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AuthorBadran, ismail
AuthorQut, Obada
AuthorManasrah, Abdallah D.
AuthorAbualhasan, Murad
Available date2022-01-25T07:53:27Z
Publication Date2021-03-01
Publication NameEnvironmental Science and Pollution Research
Identifierhttp://dx.doi.org/10.1007/s11356-020-11679-y
CitationBadran, I., Qut, O., Manasrah, A.D. et al. Continuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column. Environ Sci Pollut Res 28, 14694–14706 (2021). https://doi.org/10.1007/s11356-020-11679-y
ISSN14694-14706
URIhttp://hdl.handle.net/10576/25923
AbstractWater pollution by emerging pollutants such as pharmaceutical and personal care products is one of today's biggest challenges. The presence of these emerging contaminants in water has raised increasing concern due to their frequent appearance and persistence in the aquatic ecosystem and threat to health and safety. The antidiabetic drug glimepiride, GPD, is among these compounds, and it possesses adverse effects on human health if not carefully administered. Several conventional processes were proposed for the elimination of these persistent contaminants, and adsorption is among them. Therefore, in this study, the adsorptive removal of GPD from water using multi-walled carbon nanotubes (MWCNT) supported on silica was explored on a fixed-bed column. The effects of bed-height, solution pH, and flow rate on the adsorptive removal of GPD were investigated. The obtained adsorption parameters using Sips, Langmuir, and Freundlich models were used to investigate the continuous adsorption. The results showed that the drug removal is improved with the increasing bed height; however, it decreased with the flow rate. The effect of pH indicated that the adsorption is significantly affected and increased in acidic medium. The convection-dispersion model coupled with Freundlich isotherm was developed and used to describe the adsorption breakthrough curves. The maximum adsorption capacity (q) was 275.3 mg/g, and the axial dispersion coefficients were ranged between 3.5 and 9.0 × 10 m/s. The spent adsorbent was successfully regenerated at high pH by flushing with NaOH.
Languageen
PublisherSpringer
SubjectAdsorption
Glimepiride
Continuous adsorption
Convection-dispersion model
Multi-walled CNT
Wastewater
TitleContinuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column.
TypeArticle
Volume Number28
dc.accessType Abstract Only


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