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Removal of Cationic Dyes from Aqueous Solutions using Microspherical Particles of Fly Ash

by Modelski, Szymon , Szafran, Roman G. , Dawiec, Anna , Witek-Krowiak, Anna

in Adsorbents / Adsorption / Applied sciences / Aqueous solutions / cationic dyes / Coal Ash - chemistry / Color removal / Coloring Agents - chemistry / Dyes / Exact sciences and technology / Fly ash / Hydrogen-Ion Concentration / Industrial Waste / Kinetics / low‐cost sorbent / Osmolar Concentration / Pollution / Sorbents / Sorption / Surface-Active Agents / Surfactants / Temperature / Textile Industry / Thermodynamics / Waste Disposal, Fluid - methods / waste material / Waste materials / Water Pollutants, Chemical - chemistry / water treatment

2012

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Removal of Cationic Dyes from Aqueous Solutions using Microspherical Particles of Fly Ash

by Modelski, Szymon , Szafran, Roman G. , Dawiec, Anna , Witek-Krowiak, Anna

2012

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Removal of Cationic Dyes from Aqueous Solutions using Microspherical Particles of Fly Ash

by Modelski, Szymon , Szafran, Roman G. , Dawiec, Anna , Witek-Krowiak, Anna

2012

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Journal Article

Removal of Cationic Dyes from Aqueous Solutions using Microspherical Particles of Fly Ash

Modelski, Szymon,

Szafran, Roman G.,

Dawiec, Anna,

Witek-Krowiak, Anna

2012

Overview

Batch sorption experiments were carried out for the removal of cationic dyes (methylene blue and malachite green) from their aqueous solutions using sorbent made from fly ash-a waste material. Effects of various experimental parameters: initial dye concentration, contact time, pH, adsorbent dosage, solution temperature, surfactant addition and ionic strength on the fly ash sorption of dyes were evaluated. The isothermal data for sorption followed the Langmuir model. The maximum sorption capacity obtained for methylene blue and malachite green was 36.05 mg/g and 40.65 mg/g, respectively. Kinetic studies indicate that sorption on fly ash follows the pseudo-second order kinetics. Present research suggests that fly ash could be an appropriate adsorbent for the removal of basic dyes from aqueous solutions.

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Publisher

Water Environment Federation,Blackwell Publishing Ltd

Subject

/ Coal Ash - chemistry

/ Color removal