Anggraini, Merry, Kurniawan, Alfin, Lu, Ki Ong, Martin, Mario A., Jhy-Chern, Liu, Soetaredjo, Felycia E., Indraswati, Nani and Ismadji, Suryadi (2014) Antibiotic detoxification from synthetic and real effluents using a novel MTAB surfactant-montmorillonite (organoclay) sorbent. RSC Advances, 4 (31). pp. 16298-16311. ISSN 2046-2069
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Abstract
The growing threat of antibiotic-resistant bacteria to public health has raised interest in the proper treatment of discharged pharmaceutical wastewater before entering surface waters. In this study, adsorption was highlighted as a low cost and effective pathway to remove amoxicillin and ampicillin from aqueous solutions. Montmorillonite (Na-MMT) and myristyltrimethylammonium (MTA)-intercalated montmorillonite (O-MMT) were employed as the adsorbing solids. Static adsorption experiments were performed at three temperatures (303.15 K, 313.15 K and 323.15 K) for single antibiotic systems. The adsorption isotherm curves at all temperatures exhibited an L2-type isotherm. The Freundlich and Langmuir models were applied to analyze single adsorption isotherm data. The maximum sorption capacity of 0.124–0.133 mmol g−1 for amoxicillin and 0.143–0.157 mmol g−1 for ampicillin was estimated for O-MMT sorbent from Langmuir fitting. A modified extended-Langmuir model with the inclusion of surface coverage (θ) was proposed for analysis of binary adsorption isotherm data. The fitness of the modified extended-Langmuir model was superior to the original model. Batch adsorption tests on real pharmaceutical wastewater demonstrated the feasibility of the O-MMT sorbent for practical applications.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering > Chemical Engineering |
| Divisions: | Faculty of Engineering > Chemical Engineering Study Program |
| Depositing User: | Suryadi. Ismadji |
| Date Deposited: | 13 Jul 2016 07:53 |
| Last Modified: | 19 Jul 2018 07:53 |
| URI: | https://repositori.ukwms.ac.id/id/eprint/4195 |
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