English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/75036
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Electrokinetic remediation of dredged sediments polluted with heavy metals with different enhancing electrolytes

AuthorsRozas, F.; Castellote, M.
KeywordsElectrokinetic remediation
Zeta potential
Dredged sediments
Heavy metals
Enhancing electrolytes
Issue Date2012
CitationElectrochimica Acta 86(30) : 102-109 (2012)
AbstractElectrokinetic removal of Cu, Zn, Cd, Cr, Pb and Ni from contaminated dredged material has been carried out on thirteen tests evaluating the effectiveness of different enhancing solutions of different nature (distilled water, citric acid, acetic acid, humic acid and EDTA). Several experimental variables were analyzed (type of enhancing solution, concentration, zeta potential, initial and final pH of the anolyte and catholyte, constants of chelation equilibriums (log β) and precipitation (pKs), ionic mobility and charge density passed) and the main mechanisms of their action were critically analyzed. It was derived that there is not just one enhancing solution that is the best universal one for all the metals in the sediment and that modeling of the decontamination process should incorporate the particularities of the different species. However, as a generalization, it could be said that, apart from the charge density passed, the pH of the cathodic solution, quelation ability and the zeta potential seems to appear as the most relevant factors in the efficiency of the process.
Publisher version (URL)http://dx.doi.org//10.1016/j.electacta.2012.03.068
Appears in Collections:(CISDEM) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.