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

Wambu, Enos W; Muthaika, Gerald Kanyago; wa-Thiong'o, Joseph K; Shiundu, Paul M

dc.contributor.author	Wambu, Enos W
dc.contributor.author	Muthaika, Gerald Kanyago
dc.contributor.author	wa-Thiong'o, Joseph K
dc.contributor.author	Shiundu, Paul M
dc.date.accessioned	2022-11-21T08:10:31Z
dc.date.available	2022-11-21T08:10:31Z
dc.date.issued	2011-08-11
dc.identifier.uri	www.elsevier.com/locate/clay
dc.identifier.uri	http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/7710
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 N98% removal of Cu(II) ions from solution were obtained. Thus, N80% Cu adsorption was reversible at SBE silicate sites because of their higher proportion in the adsorbent.	en_US
dc.language.iso	en	en_US
dc.publisher	Elsevier B.V	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