On the use of carbon blacks as potential low-cost adsorbents for the removal of non-steroidal anti-inflammatory drugs from river water

The adsorption of two non-steroidal anti-inflammatory drugs (NSAIDs), namely naproxen and ketoprofen, has been studied. Low-cost carbonaceous materials such as carbon blacks have been used as the adsorbents. The influence of temperature (20–60 ° C), pH (3–11), ionic strength (0.01–0.1 M), textural p...

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Bibliographic Details
Published in:Journal of hazardous materials 2010-05, Vol.177 (1), p.1046-1053
Main Authors: Cuerda-Correa, Eduardo M., Domínguez-Vargas, Joaquín R., Olivares-Marín, Francisco J., de Heredia, Jesús Beltrán
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Anti-Inflammatory Agents, Non-Steroidal - isolation & purification
Applied sciences
Carbon blacks
Chemical engineering
Continental surface waters
Costs and Cost Analysis
Drug removal
Drugs
Exact sciences and technology
Freshwater
Ketoprofen
Ketoprofen - chemistry
Naproxen
Naproxen - chemistry
Natural water pollution
NSAIDs
Osmolar Concentration
Pollution
Rivers
Soot - chemistry
Soot - economics
Strength
Temperature
Water Pollutants, Chemical - isolation & purification
Water Purification - methods
Water treatment and pollution
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Summary:The adsorption of two non-steroidal anti-inflammatory drugs (NSAIDs), namely naproxen and ketoprofen, has been studied. Low-cost carbonaceous materials such as carbon blacks have been used as the adsorbents. The influence of temperature (20–60 ° C), pH (3–11), ionic strength (0.01–0.1 M), textural properties of the adsorbents ( S BET and pore volumes) and aqueous matrix on the adsorption process has been analyzed. The adsorption isotherms have been determined both in milli-Q™ aqueous solution and water from the Guadiana river. Ionic strength and pH exert a noticeable influence on the process. In general, the removal is favored at low values of temperature and pH. On the contrary, an increase of the ionic strength seems to favor the adsorption process. The use of more porous adsorbents results in a more effective removal of the pollutants. Finally, the use of natural river water results in a noticeable increase of the removal capacity of naproxen and, particularly, ketoprofen. The experimental results proved that, under the optimal operation conditions, up to 517 mg/g of naproxen and 400 mg/g of ketoprofen may be adsorbed, which demonstrates the promising potential of these adsorbents for the removal of the pharmaceuticals under study.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2010.01.026