Adsorption of acid dye from water onto pristine and acid-activated clays in fixed beds

Lin, Su‐Hsia; Juang, Ruey‐Shin; Wang, Yuen-Hua

doi:10.1016/j.jhazmat.2004.06.028

Cited by 100 publications

(45 citation statements)

References 25 publications

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“…Our results agree also with the data reported by Lin et al [38]. According to these authors, the increase in the flow rate, Q, disadvantages the acidic dye adsorption on montmorillonite.…”

Section: Effect Of the Flow Ratesupporting

confidence: 93%

Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface

Jada

Akbour

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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IFP Energies nouvelles International Conference Rencontres Scientifiques d'IFP Energies nouvellesRe´sume´-Adsorption et de´sorption d'un colorant organique a`l'interface sable de quartz-eauNous avons e´tudie´le transport, la sorption et la de´sorption d'un cation organique (bleu de me´thyle`ne (BM)), a`travers un milieu poreux constitue´de particules de sable de quartz charge´es ne´gativement. Nous avons examine´l'influence des parame`tres, tels que : la force ionique de la solution aqueuse, la vitesse de circulation, le pH de la phase aqueuse, la tempe´rature du milieu et la nature des cations divalents me´talliques pre´sents en solution, sur le transport et le de´poˆt du BM à travers le milieu poreux. Les mesures de la re´tention du colorant ont e´te´re´alise´es en utilisant la technique d'injection-e´chelon. Les re´sultats obtenus ont montre´une diminution de la quantite´de BM adsorbe´sur le quartz lorsque le pH de la phase aqueuse diminue de 9,5 a`4. Une baisse de la quantite´de BM adsorbe´a e´te´e´galement observe´e lorsque la force ionique ou le de´bit augmente. Cependant, l'augmentation de la tempe´rature a conduit a`une augmentation de la quantite´de BM adsorbe´e, ce qui laisse supposer que l'adsorption du BM sur la surface de quartz est de nature endothermique. En pre´sence de cations divalents en solution (Ca 2+ , Cu 2+, Zn 2+ et Ba 2+ ), la quantite´retenue du colorant de´pend de la nature du cation. L'ensemble de ces re´sultats, montre que l'adsorption du colorant basique est controˆle´e par les interactions e´lectrostatiques entre la surface ne´gative du quartz et le polluant organique cationique.Abstract -Adsorption and Removal of Organic Dye at Quartz Sand-Water InterfaceWe studied the transport, sorption and desorption of organic cation (Methylene Blue, MB) through a porous medium consisting of quartz sand particles negatively charged. We examined various parameters such as the ionic strength of the aqueous solution, the flow velocity, the pH of the aqueous phase, the temperature of the medium and the nature of the divalent metal cations present in solution, which affect the transport and the deposition of MB through the porous medium.Step-input experiments were carried out to measure the dye retention. The data showed a decrease in the MB adsorbed amount on the quartz, when the pH of the aqueous phase, or the temperature, decreases, or when the flow rate, or the affinity of the divalent cation (Ca 2+ , Cu 2+ , Zn 2+ and Ba 2+) toward the quartz surface increases. The increase in ionic strength leads to a small decrease in the MB adsorbed amount. However, the increase in temperature leads to an increase in the retained MB amount, which suggests that the adsorption of MB on the surface of quartz is endothermic in nature. The overall data indicate that, at ambient temperature, electrostatic interaction forces, which occur between the cationic organic pollutant and the negative surface of the quartz substrate, mainly control the adsorption process.

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“…Our results agree also with the data reported by Lin et al [38]. According to these authors, the increase in the flow rate, Q, disadvantages the acidic dye adsorption on montmorillonite.…”

Section: Effect Of the Flow Ratesupporting

confidence: 93%

Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface

Jada

Akbour

2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…The dyes are well known to influence the quality of water resulting in various undesirable consequences. Most of the dyes are toxic and carcinogenic as well [2]. Hence, search for novel, cost effective, and efficient materials for removal of dyes is very important.…”

Section: Introductionmentioning

confidence: 99%

Graphene and graphene oxide as effective adsorbents toward anionic and cationic dyes

Ramesha

Kumara

Muralidhara

et al. 2011

Journal of Colloid and Interface Science

1,030

503

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“…Several mathematical models have been successfully used to represent the dynamic dye uptake and these include the Bohart and Adams, Thomas, and Yoon-Nelson models (Rozada et al, 2003;Lin et al, 2004;Ahmad and Hameed, 2010). Although the good performance of shale oil ash as a dye adsorbent has been successfully predicted through the BDST (Bed Depth Service Time) model (Al-Qodah and Lafi, 2003), few results which take into account the mass transfer mechanism have been reported.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of the Dye Reactive Blue 5g in Retorted Shale

Lambrecht

Barros

Arroyo

et al. 2015

Braz. J. Chem. Eng.

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-In this study the influence of the volumetric flow rate and feed concentration was investigated for the adsorption of the reactive dye Blue 5G. Experiments were carried out in a bed packed with retorted shale, at 30 o C. The ranges investigated were flow rate 2 -10 mL/min and the feed concentration 13-105 mg/L. Mathematical models were used to represent the dynamic sorption. The double resistance model considers the effects of the axial dispersion and the mass transfer resistance of the external film and inside the particles. As a result, the mass transfer coefficient of the external film and the internal mass transfer coefficient were estimated. The Thomas model was used to simulate the experimental data. In this model the fitted parameter was the adsorption kinetic constant. The first model provided an acceptable representation of the dynamic uptake of the reactive dye Blue 5G.

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Adsorption of acid dye from water onto pristine and acid-activated clays in fixed beds

Cited by 100 publications

References 25 publications

Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface

Adsorption and Removal of Organic Dye at Quartz Sand-Water Interface

Graphene and graphene oxide as effective adsorbents toward anionic and cationic dyes

Adsorption of the Dye Reactive Blue 5g in Retorted Shale

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