Adsorption of methylene blue from aqueous solutions onto fly ash

Author

Fan, Chunhui ; Dang, Nan ; Ma, Hongrui

Author_Institution

Sch. of Resource & Environ., Shaanxi Univ. of Sci. & Technol., Xi´an, China

Volume

3

fYear

2011

Firstpage

2217

Lastpage

2220

Abstract

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 C₃H₆O 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.

Keywords

adsorption; fly ash; scanning electron microscopy; wastewater treatment; C₃H₆O; aqueous solution; batch adsorption procedure; fly ash; methylene blue adsorption; regeneration reaction; scanning electronic microscopy; time 30 min; wastewater purification; Fly ash; Hazards; Kinetic theory; Purification; Scanning electron microscopy; Surface roughness; Wastewater; adsorption characteristics; desorption experiment; fly ash; methylene blue;

fLanguage

English

Publisher

ieee

Conference_Titel

Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on

Conference_Location

Xi´an

Print_ISBN

978-1-61284-339-1

Type

conf

DOI

10.1109/ISWREP.2011.5893705

Filename

5893705