The removal of reactive black 5 from aqueous solutions by cotton seed shell.

Uçar, Deniz; Armagan, Bülent

Uçar, Deniz; Armagan, Bülent.

Afiliación

Uçar D; Department of Environmental Engineering, Harran University, Osmanbey Campus, 63000 Sanliurfa, Turkey. denizucar@harran.edu.tr

Water Environ Res ; 84(4): 323-7, 2012 Apr.

Article en En | MEDLINE | ID: mdl-22834220

RESUMEN

This study investigated the removal of Reactive Black 5 (RB5) textile dye from aqueous solutions using cotton (Gossypium hirsutum) seed shell (CSS) as low cost adsorbents. The data were described according to the Freundlich and Langmuir isotherm models. Of these, the Langmuir model provided the best fit for the experimental data. The highest measured adsorption density was 12.19 mg/g at pH 2. An equilibrium adsorption rate of RB5 by CSS (q(e) = 11.879 mg/g) was observed at 30 minutes. In order to evaluate the adsorption kinetic mechanisms, pseudo first and second order rate kinetic models and an intraparticle diffusion model were applied, with the pseudo second order model providing an excellent fit for the data.

Asunto(s)

Gossypium/química; Naftalenosulfonatos/aislamiento & purificación; Contaminantes Químicos del Agua/aislamiento & purificación; Purificación del Agua/métodos; Adsorción; Modelos Químicos; Estructura Molecular; Naftalenosulfonatos/química; Semillas/química; Soluciones; Contaminantes Químicos del Agua/química

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Purificación del Agua / Gossypium / Naftalenosulfonatos Idioma: En Revista: Water Environ Res Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2012 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Estados Unidos

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