Adsorption of anionic dyes on to waste Fe (III)/Cr (III).
Article
in English
| IMSEAR
| ID: sea-114070
ABSTRACT
Waste Fe (III)/Cr (III) hydroxide was investigated for the removal of anionic dyes, namely acid brilliant blue (acidic dye) and procion red (reactive azo dye) from aqueous solution. In batch experiments, parameters studied include contact time, adsorbate concentration, pH, adsorbent dose and temperature. Adsorption followed Langmuir isotherm with adsorption capacity of 10.37 and 3.28 mg/g for acid brilliant blue and procion red, respectively. Adsorption kinetic studies showed second order with respect to acid brilliant blue and first order with respect to procion red. Thermodynamic parameters such as free energy, enthalpy and entropy of adsorption were also evaluated.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Temperature
/
Triazines
/
Water Pollutants, Chemical
/
Kinetics
/
Ferric Compounds
/
Chromium Compounds
/
Water Purification
/
Adsorption
/
Coloring Agents
/
Hydrogen-Ion Concentration
Language:
English
Year:
2006
Type:
Article
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