Antibiotic detoxification from synthetic and real effluents using a novel MTAB surfactant-montmorillonite (organoclay) sorbent

Anggraini, Merry and Kurniawan, Alfin and Ong, Lu Ki and Martin, Mario A. and Liu, Jhy-Chern and Soetaredjo, Felycia E. and Indraswati, Nani and Ismadji, Suryadi (2014) Antibiotic detoxification from synthetic and real effluents using a novel MTAB surfactant-montmorillonite (organoclay) sorbent. RSC Advances, 4. pp. 16298-16311. ISSN 2046–2069

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Official URL: Royal Society of Chemisty

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 eff ective 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 g1 for amoxicillin and 0.143–0.157 mmol g1 for ampicillin was estimated for O-MMT sorbent from Langmuir fitting. A modified extended-Langmuir model with the inclusion of surface coverage (q) 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: Felycia Edi Soetaredjo
Date Deposited: 17 Jul 2017 07:38
Last Modified: 22 May 2018 09:24
URI: http://repository.wima.ac.id/id/eprint/11031

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