Investigation on the montmorillonite adsorption of biocidal compounds incorporating thermodynamical-based multicomponent adsorption isotherm

Ong, L.K. and Soetaredjo, F.E. and Kurniawan, A. and Ayucitra, A. and Jhy-Chern, Liu and Ismadji, Suryadi (2014) Investigation on the montmorillonite adsorption of biocidal compounds incorporating thermodynamical-based multicomponent adsorption isotherm. Chemical Engineering Journal, 241. pp. 9-18. ISSN 1385-8947

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Sublethal concentration of biocides, namely triclosan and benzalkonium chloride, have been known to raise severe environmental problems such as pathogens resistance and the existence of the toxic com- pounds in reclaimed water. Simple adsorption process of those biocides onto the bentonite modified by dodecyltricetyl ammonium bromide (DTAB) cation, show a remarkable increase on the removal effi- ciency of triclosan, regardless of the pH value. It was found that organophilic cation facilitates the anchor- ing of hydrophobic triclosan, but slightly limits the adsorption of benzalkonium chloride by occupying the active cation exchange site in the bentonite structure. Adsorption of a single system can be described properly by Langmuir isotherm equation. Incorporation of the Gibb’s free energy on the affinity constant of the extended Langmuir equation may attribute robust predictive ability on the binary adsorption model.

Item Type: Article
Uncontrolled Keywords: Adsorption, benzalkonium chloride, triclosan, extended Langmuir, organo-bentonite
Subjects: Engineering
Engineering > Chemical Engineering
Divisions: Faculty of Engineering > Chemical Engineering Study Program
Depositing User: Suryadi. Ismadji
Date Deposited: 24 May 2017 04:26
Last Modified: 19 Jul 2018 07:51
URI: http://repository.wima.ac.id/id/eprint/10770

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