Abstract
Abstract:
In this study, the adsorption and desorption kinetics of lanthanum (La) on micro algal cells was investigated. The internal transcribed spacer (ITS) and 18S ribosomal RNA gene (rRNA) were used for molecular identification of the species. The algal species were found to have 95-98% identities to Desmodesmus multivariabilis, Scenedesmus acuminutus, Chloroidium saccharophilum and Stichococcus bacillaris. The species were cultured and tested independently. D. multivariabilis was found to be the most efficient at adsorbing lanthanum with a maximum sorption capacity (qmax) of 100mg/g and a high affinity (b) of 4.55 L/g. Desorption of La was also highest in D. multivariabilis with recovery up to 99.63% at initial concentration as high as 100 mg/L. Desorption data fitted best to the modified pseudo second-order with a better correlation coefficient (R2) of ≤0.98 than first order model. The results showed feasibility of lanthanum recovery using algal sorbents, a cost effective method.
Notes:
Biotechnology
Details
Format:
Academic Journal
Database:
PASCAL Archive
Journal:
Special Issue on Biosorption
Volume:
160
Page Start:
43
Page Count:
9
ISSN:
09608524
Publisher:
Kidlington: Elsevier, 2014.
Document Type:
Article
Physical Description:
print, 1/2 p
