Adsorption of methylene blue from aqueous solutions onto fly ash

Batch adsorption procedures were conducted to remove methylene blue (MB) from aqueous solutions with fly ash (FA). The samples of FA were characterized by scanning electronic microscopy (SEM), and the effects of initial pH value, contact time, MB concentration and dosage of FA on removal efficiency...

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Bibliographic Details
Main Authors: Chunhui Fan, Nan Dang, Hongrui Ma
Format: Conference Proceeding
Language:English
Subjects:
adsorption characteristics
desorption experiment
Fly ash
Hazards
Kinetic theory
methylene blue
Purification
Scanning electron microscopy
Surface roughness
Wastewater
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Summary:Batch adsorption procedures were conducted to remove methylene blue (MB) from aqueous solutions with fly ash (FA). The samples of FA were characterized by scanning electronic microscopy (SEM), and the effects of initial pH value, contact time, MB concentration and dosage of FA on removal efficiency were investigated. The holey characteristics and rough surface of FA made it possible to purify wastewater containing MB. It proved the reaction was fast, at the pH value of 6, the removal efficiency was optimal, lower MB concentration as well as higher dosage of FA could accelerate MB removal. The regeneration reaction on FA with 200 mL of C 3 H 6 O for 30 min was more effective than others. FA was effective in wastewater purification for MB, the ease of handling and low cost made it potential in practical application.
DOI:10.1109/ISWREP.2011.5893705