Adsorption of dyes onto activated carbon cloths: approach of adsorption mechanisms and coupling of ACC with ultrafiltration to treat coloured wastewaters

Métivier-Pignon, Hélène; Faur, Catherine; Cloirec, Pierre Le

doi:10.1016/s1383-5866(02)00147-8

Cited by 142 publications

(44 citation statements)

References 11 publications

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“…Moreover, the complex aromatic molecular structures of reactive dyes make them more stable and more difficult to biodegrade [5,6]. The majority of technologies presently employed for the decolorization of dyes in wastewater are based on either traditional physicochemical processes such as dilution, oxidation, adsorption, electrocoagulation and flocculation, chemical precipitation, ion exchange, reverse osmosis and ultra filtration [7,8], or biological process [9]. Of the numerous techniques mentioned, adsorption in particular is an effective process for the removal of dyes from waste effluents.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Reactive Black 5 from Aqueous Solution onto Chitosan

Saha

Bhoumik

Karmaker

et al. 2011

CLEAN Soil Air Water

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Adsorption of reactive black 5 (RB5) from aqueous solution onto chitosan was investigated in a batch system. The effects of solution pH, initial dye concentration, and temperature were studied. Adsorption data obtained from different batch experiments were modeled using both pseudo first-and second-order kinetic equations. The equilibrium adsorption data were fitted to the Freundlich, Tempkin, and Langmuir isotherms over a dye concentration range of 45-100 mmol/L. The best results were achieved with the pseudo second-order kinetic and Langmuir isotherm equilibrium models, respectively. The equilibrium adsorption capacity (q e ) was increased with increasing the initial dye concentration and solution temperature, and decreasing solution pH. The chitosan flakes for the adsorption of the dye was regenerated efficiently through the alkaline solution and was then reused for dye removal. The activation energy (E a ) of sorption kinetics was estimated to be 13.88 kJ/mol. Thermodynamic parameters such as changes in free energy (DG), enthalpy (DH), and entropy (DS) were evaluated by applying the van't Hoff equation. The thermodynamics of reactive dye adsorption by chitosan indicates its spontaneous and endothermic nature.

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Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Reactive Black 5 from Aqueous Solution onto Chitosan

Saha

Bhoumik

Karmaker

et al. 2011

CLEAN Soil Air Water

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“…Comparison of the maximum adsorption capacity of MB and ORII onto various adsorbents is shown in Table 3 ( Kannan and Sundaram, 2001;Tsai et al, 2001;Metivier-Pignon et al, 2003;Hameed et al, 2007b;Zhang et al, 2007;Hsiu-Mei et al, 2009). Maximum adsorption capacity of MB and ORII onto A-AC-S was 412 mg/g and 503 mg/g, respectively.…”

Section: Results and Discussion Ac Characteristicsmentioning

confidence: 99%

Development of the Treatment Technology for Dye Removal from Aqueous Solution Using Activated Carbon Treatment and Ozone Oxidation

Ogata

Tominaga

Yabutani

et al. 2011

J. of Wat. & Envir. Tech.

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Activated carbon treatment and ozone oxidation were used for decolorization or total organic carbon (TOC) removal from an aqueous solution. Acid, neutral, and basic activated carbon (A-AC, N-AC, and B-AC) were prepared with particle sizes of 44 -297 μm (S), 297 -500 μm (M), and 500 -840 μm (L), respectively. Methylene blue (MB) and orange II (ORII) were used as adsorbates, and the amount of MB or ORII adsorbed onto AC depended on the specific surface area of the AC. The adsorption data were fitted to the Freundlich and Langmuir equations, which suggested that the mechanism by which dye is adsorbed onto AC is that of monomolecular adsorption onto a heterogeneous surface. After ozone treatment, the MB and ORII structures were degraded and decolorized. However, TOC was not significantly reduced because the dye structure was broken down by ozone oxidation, which generated low-molecular-weight molecules but did not remove them. Activated carbon treatment after ozone oxidation was very effective for dye and TOC removal. This treatment enhanced the TOC removal by up to 20 -30% from that achieved solely by ozone treatment.

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“…However, only some studies have been reported in the last years for dye adsorption onto activated carbon cloths (Table 2). Among them, those reported by Métivier-Pignon et al [136,137] contribute to gain insight into dye adsorption on ACC. The adsorption of 22 commercial dyes onto two commercial rayon-based activated cloths (Actitex Co., France), with different porous structures was examined ( Table 2).…”

Section: Adsorption Of Organic Pollutants Onto Activated Carbonmentioning

confidence: 99%

Development and Environmental Applications of Activated Carbon Cloths

Cukierman

2013

ISRN Chemical Engineering

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Activated carbon cloths have received growing attention because they offer comparative advantages over the traditional powdered or granular forms of this well-known adsorbent, providing further potential uses for technological innovations in several fields. The present article provides an overview of research studies and advances concerned with the development of activated carbon cloths and their use as adsorbent in environmental applications, mostly reported in the last years. The influence of some fabrics and textile wastes used as precursors, and of main activation process variables on the development and physicochemical, mechanical and/or electrical properties of the resulting activated carbon cloths are first reviewed. Then, investigations dealing with the removal of water and air pollutants by adsorption onto activated carbon cloths, including advances toward optimizing their regeneration after organic vapors saturation, are presented.

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Adsorption of dyes onto activated carbon cloths: approach of adsorption mechanisms and coupling of ACC with ultrafiltration to treat coloured wastewaters

Cited by 142 publications

References 11 publications

Adsorption Characteristics of Reactive Black 5 from Aqueous Solution onto Chitosan

Adsorption Characteristics of Reactive Black 5 from Aqueous Solution onto Chitosan

Development of the Treatment Technology for Dye Removal from Aqueous Solution Using Activated Carbon Treatment and Ozone Oxidation

Development and Environmental Applications of Activated Carbon Cloths

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