Modeling of the dynamic adsorption of an anionic dye through ion-exchange membrane adsorber

Labanda, Jordi; Sabaté, Josep; Llorens, Joan

doi:10.1016/j.memsci.2009.05.036

Cited by 96 publications

(46 citation statements)

References 30 publications

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“…The applications of the ion exchange in the field of wastewater treatment, sugar and alcohol processing, pharmaceutical applications such as biological recovery and purification and hydrometallurgy industry [67] has been reported. Also, ion exchange is used to remove toxic dyes from wastewater such as removal of anionic dye Orange-G [16] and cationic dye Methyl violet 2B [17]. Ion exchange is a good method to separate toxic and soluble dyes from water effluents although the high capital cost associated with this process limited its use.…”

Section: Ion Exchange Methodsmentioning

confidence: 99%

“…Anionic dyes removal is the most challenging task as they produced very bright colours in water and show acidic properties. Reactive dyes contain reactive groups such as vinyl sulphone, chlorotriazine, trichloropyrimidine, and difluorochloropyrimidine that covalently bonded with the fiber during the dyeing process [16]. Moreover, azo dyes represent the largest class of reactive dyes used in the textile industry followed by anthraquinone and phthalocyanine classes [17].…”

Section: Dyes and Their Toxicity Effectsmentioning

confidence: 99%

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Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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Dyes are complex organic compounds which are used by various industries to colour their products. These dyes are purged from various industrial sources such as textile, cosmetic, paper, leather, rubber and printing industries. Wastewater effluents contain dyes which may cause potential hazards to the environment. Some of these dyes are toxic, carcinogenic and can cause skin and eye irritation. Therefore, many researchers have been studied the effectiveness of dyes removal from aqueous solution by different separation methods. Different separation techniques have been used for the treatment of dye-bearing wastewater such as adsorption, coagulation/flocculation, advanced oxidation technologies, ozonation, and membrane-filtration, aerobic and anaerobic degradation. All dye separation techniques have their own limitation in terms of design, operation efficiency and total cost. This review paper provides extensive literature information about dyes, its classification and toxicity together with various treatment methods into dye adsorption characteristics of several non-conventional cost effective sustainable adsorbents. The mechanism and the effects of various physio-chemical process parameters on dye adsorption are presented here.

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Section: Ion Exchange Methodsmentioning

confidence: 99%

Section: Dyes and Their Toxicity Effectsmentioning

confidence: 99%

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Dawood¹,

Sen

2013

Journal of Chemical and Process Engineering

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“…However, it is carcinogenic. The common Rhodamine B removal processes include: physical-chemical, chemical, and biological methods, such as coagulant sedimentation (Sadri Moghaddam, Alavi Moghaddam, & Arami, 2010), membrane separation (Sachdeva & Kumar, 2009), adsorption(D. Karadag, Turan, Akgul, Tok, & Faki, 2007), chemical oxidation (El-Desoky, Ghoneim, El-Sheikh, & Zidan, 2010), ion exchange method (Labanda, Sabaté, & Llorens, 2009), and aerobe and anaerobe degradation methods (Li, Zhang, Lin, Han, & Lei, 2010). Among these, the adsorption method is regarded to be an effective method for the removal of dyes from water (Chatterjee, Lee, Lee, & Woo, 2009).…”

Section: Introductionmentioning

confidence: 99%

The Adsorption of Rhodamine B in Water by Modified Zeolites

Wang¹,

Li²,

Pan³

et al. 2016

MAS

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In this study, modified zeolites were prepared through the modification of raw zeolites, using hydrochloric acid (HCl) and cetyl trimethyl ammonium bromide (CTAB), whose properties were then characterized by a Zeta Potential Meter and an X-ray diffractometer. Also, the adsorption mechanisms were investigated in depth. The experimental results indicated that, in terms of the adsorption capacity of Rhodamine B in water, the modified zeolites were more favorable than the raw zeolites. As the dosage of adsorbent increased, the removal percentage of Rhodamine B in the water increased, while the unit adsorption capacity decreased. The pH value of the solution, and reaction temperature imposed little effects on the adsorption of the Rhodamine B. In accordance with the adsorption thermodynamic results, Langmuir and Freundlich isothermal adsorption models were able to accurately describe the adsorption of Rhodamine B in water by the modified zeolites. The fitting results had a higher correlation when using a Freundlich isothermal model. At 303 K, the static saturated adsorption capacity was 4.41 mg/g. The kinetic results demonstrated that the adsorption of Rhodamine B in water using modified zeolites fit well with the pseudo-second-order kinetic model.

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“…Moreover, most of them are toxic and can seriously harm human health (Sun et al 2007). The conventional treatment methods for dye wastewater, such as oxidation (Arslan et al 2000), coagulation (Pattabhi and Yun 2007;Szygu1a et al 2009;Verma et al 2012), flocculation , photochemical destruction (Deng et al 1997), ion exchange (Labanda et al 2009), and membrane filtration (Ciardelli et al 2000), are complicated and costly. In addition, some methods require additional chemicals or produce toxic products.…”

Section: Introductionmentioning

confidence: 99%

Removal of Methylene Blue from Aqueous Solution by Adsorption onto Crofton Weed Stalk

Lijuan¹,

Li²

2013

BioResources

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Crofton weed stalk (CWS) was used as an adsorbent to remove methylene blue (MB) from aqueous solution. The adsorbent was analyzed by FT-IR and observed by SEM. The porosity and pH zpc were measured. The effects of adsorbent dose, initial dye concentration, solution pH, and solution temperature were investigated. Models of the adsorption kinetics and isotherms were analyzed, and thermodynamic parameters were calculated at different temperatures. The results showed that the adsorption capacity of MB on CWS increased with increasing initial concentration from 10 to 40 mg/L and pH from 2 to 7. The amount of MB removed increased as the adsorbent dosage was increased from 0.2 to 1.2 g/L. The maximum dye adsorption capacity of 28 mg/g was reached at around 120 min in a solution of 40 mg/L. A pseudo-second-order kinetic model described the kinetics well, and the experimental data followed the Freundlich model. The calculated values of standard free energy (ΔG o ) and standard enthalpy (ΔH o ) were negative, which indicates the adsorption process is spontaneous and exothermic. The values of both free energy and ΔG o indicate that the adsorption is a physical process. This work shows CWS could be utilized as an effective adsorbent for treating dye wastewater.

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Modeling of the dynamic adsorption of an anionic dye through ion-exchange membrane adsorber

Cited by 96 publications

References 30 publications

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

Review on Dye Removal from Its Aqueous Solution into Alternative Cost Effective and Non-Conventional Adsorbents

The Adsorption of Rhodamine B in Water by Modified Zeolites

Removal of Methylene Blue from Aqueous Solution by Adsorption onto Crofton Weed Stalk

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