Regeneration of spent bleaching earth and its adsorption of copper (II) ions from aqueous solutions

dc.contributor.author	Wambua, Enos W
dc.contributor.author	Muthakia, Gerald K
dc.contributor.author	Shiundu, Paul M
dc.contributor.author	wa-Thiong'o, Joseph K
dc.date.accessioned	2015-05-22T15:25:58Z
dc.date.available	2015-05-22T15:25:58Z
dc.date.issued	2009
dc.description.abstract	This study was designed to provide a comprehensive investigation into heat and acid reactivation of spent bleaching earth (SBE) and adsorption of Cu(II) ions from aqueous solutions. Heat treatment was the master variable in SBE regeneration. Dilute acid treatment did not constitute an effective SBE reactivation protocol for this purpose. Solvent extraction of residual oil using excess methylethyl ketone followed by heating at 370 °C was, therefore, the most effective reactivation procedure. Highly adsorptive materials with > 98% removal of Cu(II) ions from solution were obtained. Thus, > 80% Cu adsorption was reversible at SBE silicate sites because of their higher proportion in the adsorbent.	en_US
dc.identifier.citation	Applied Clay Science Volume 46, Issue 2, October 2009, Pages 176–180	en_US
dc.identifier.uri	http://www.sciencedirect.com/science/article/pii/S0169131709001823
dc.identifier.uri	http://hdl.handle.net/123456789/1045
dc.language.iso	en	en_US
dc.subject	Spent bleaching earth regeneration	en_US
dc.subject	Copper	en_US
dc.subject	Adsorption	en_US
dc.title	Regeneration of spent bleaching earth and its adsorption of copper (II) ions from aqueous solutions	en_US
dc.type	Article	en_US

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