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Adsorption of carmoisine A from wastewater using waste materials—Bottom ash and deoiled soya

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Abstract.
The present study deals with the application of bottom ash, a power plant waste, and deoiled soya, an
agricultural waste, for the adsorptive removal of carmoisine A dye from its aqueous solutions. This paper
incorporates a comparative study of the adsorption characteristics of the dye on these effective adsorbents
along with effects of time, temperature, concentration, and pH. Analytical techniques have been
employed to find pore properties and characteristics of adsorbent materials. Batch adsorption studies,
kinetic studies, and column operations have also been performed to understand the dye extraction ability
of the adsorbents. The adsorption behavior of the dye has been studied using Freundlich, Langmuir,
Tempkin, and Dubinin–Radushkevich adsorption isotherm models. The monolayer adsorption capacity
determined from the Langmuir adsorption equation has been found as 1.78 x 10-5 and 5.62 x 10-5 mol g-1 at 323 K for bottom ash and deoiled soya, respectively. Kinetic measurements suggest the involvement of pseudo-second-order kinetics in both adsorptions and each case is controlled by a particle diffusion process. Column experiments demonstrated that both adsorbents could be practically utilized in elimination of hazardous dye from effluent and dye material can be recovered by eluting NaOH through the exhausted columns.

Keywords:
Carmoisine A
Bottom ash
Deoiled soya
Isotherms
Kinetics

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Informasi Detail

Judul Seri

Journal of Colloid and Interface Science

No. Panggil

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Penerbit

London : Elsevier Inc.., 2009

Deskripsi Fisik

Journal of Colloid and Interface Science 335 (2009) 24–33

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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