Modelling of fixed bed biosorption columns in continuous metal ion removal processes. The case of single solute local equilibrium

Hatzikioseyian, A; Mavituna, F; Tsezos, M

dc.contributor.author	Hatzikioseyian, A	en
dc.contributor.author	Mavituna, F	en
dc.contributor.author	Tsezos, M	en
dc.date.accessioned	2014-03-01T01:14:49Z
dc.date.available	2014-03-01T01:14:49Z
dc.date.issued	1999	en
dc.identifier.issn	15724409	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13235
dc.subject	Metal Ion	en
dc.title	Modelling of fixed bed biosorption columns in continuous metal ion removal processes. The case of single solute local equilibrium	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1572-4409(99)80133-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1572-4409(99)80133-3	en
heal.publicationDate	1999	en
heal.abstract	A modelling approach for a fixed bed biosorption column is presented. The developed model includes the solute bulk movement through the void space of the bed, a solute dispersion term for simulating cases of non ideal flow, and sorption terms expressed by the appropriate sorption isotherm. The main assumption of the model is that biosorption equilibrium is rapid and no mass transfer resistances exist in the liquid and solid phase. The resulting second order non-linear partial differential equation describes the performance of a column filled with biosorbent material and used to remove single solute metal ions from dilute solutions. The model predicts the optimum expected operation of the bed by simulating breakthrough and concentration profile curves, under different operating conditions. Sensitivity analysis of the operating parameters, revealed that the most important of them are the sorption capacity and the sorption intensity of the biosorbent material as these terms are expressed through the Freundlich's isotherm coefficients. © 1999 Elsevier B.V. All rights reserved.	en
heal.journalName	Process Metallurgy	en
dc.identifier.doi	10.1016/S1572-4409(99)80133-3	en
dc.identifier.volume	9	en
dc.identifier.issue	C	en
dc.identifier.spage	429	en
dc.identifier.epage	448	en