Powdered Activated Lemon Peels as Adsorbent for Removal of Cutting Oil from Wastewater
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 16, Issue 4
Abstract
Batch adsorption studies were conducted to remove cutting oil from wastewater using activated lemon (species Citrus x limon) peels. The effect of various important parameters, namely, pH, dose of adsorbent, contact time, mixing speed, and initial oil concentration, and their optimum conditions for maximum sorption efficiency were studied. Batch studies indicated that adsorbent dosage of , contact time of 70 min, mixing rate of 45–50 revolutions/min, and pH of 2 provides maximum oil removal efficiency in the present study. Results indicated that the kinetics of sorption of cutting oil on powdered activated lemon peels closely follows Freundlich isotherms. A scanning electron microscope micrograph of powdered activated lemon peels before and after adsorption is presented to prove that the oil has been adsorbed by the adsorbent.
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Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 16 • Issue 4 • October 2012
Pages: 311 - 315
Copyright
© 2012 American Society of Civil Engineers.
History
Received: May 24, 2011
Accepted: Sep 30, 2011
Published online: Oct 3, 2011
Published in print: Oct 1, 2012
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