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- W2306679270 abstract "This study aims to use unmodified fly ash (Un-G) and surfactant modified granule (Mo-G) for adsorption of two anionic dyes; acid brown 75 (AB 75) and direct yellow 162 (DY 162) from aqueous solution. The granule was prepared by wet granulation of fly ash powder. The formation of fly ash pellet occurred between 18-20 % water content and heat more than 800 °C. Coal fly ash in powder form was agglomerated into porous granule and modified with Hexadecyltrimetylammonium Bromide (HDTMA-Br), which optimal condition was 3.6 mmolL -1 . The adsorption capacities and the effect of temperature for anionic dyes adsorption at various contact times and adsorbate concentration were investigated. The equilibrium data were found to be well represented by the Langmuir isotherm equation. The sorptions of the aqueous anionic dyes onto the unmodified granule (Un-G) were small while the Mo-G's sorption was significantly increased. The adsorption process of AB 75 and DY 162 were endothermic." @default.
- W2306679270 created "2016-06-24" @default.
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- W2306679270 date "2011-01-01" @default.
- W2306679270 modified "2023-09-27" @default.
- W2306679270 title "A Comparative Study of the Adsorption of Acid Brown 75 and Direct Yellow 162 onto Unmodified and Surfactant Modified Granule Developed from Coal Fly Ash" @default.
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