Title of article :
Treatment of pollutants in wastewater: Adsorption of methylene blue onto olive-based activated carbon
Author/Authors :
Berrios، نويسنده , , Mَnica and Martيn، نويسنده , , Marيa ءngeles and Martيn، نويسنده , , Antonio، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
5
From page :
780
To page :
784
Abstract :
This study used olive stone-based activated carbon for the removal of methylene blue from wastewater in order to evaluate the adsorption capacity of the carbon. The equilibrium and kinetics of adsorption were examined at 25°, 30°, 35° and 40 °C and several agitation speeds. Type III adsorption isotherms corresponding to physical adsorption in a multilayer system were used for the methylene blue system. The equilibrium data for methylene blue adsorption showed a good fit to the Freundlich equation. The kinetic data was analysed to determine kinetic constants and order of reaction. Kinetics was evaluated by means of an n-order model, showing that the reaction was a first-order reaction. The results indicated that olive stone-based activated carbon could be used as a low-cost alternative to commercial activated carbon for the removal of organic compounds from wastewater. However, due to its microporosity, the application of this type of activated carbon was found to be suitable for molecules smaller than methylene blue.
Keywords :
Adsorption isotherms , Activated carbon , Olive stones , Methylene blue , Kinetics studies
Journal title :
Journal of Industrial and Engineering Chemistry
Serial Year :
2012
Journal title :
Journal of Industrial and Engineering Chemistry
Record number :
1709959
Link To Document :
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