Assessment of electrophoresis and electroosmosis in construction materials: effect of enhancing electrolytes and heavy metals contamination

Castellote Armero, Marta Maria and Botija, S. and Andrade Perdrix, Maria del Carmen (2010). Assessment of electrophoresis and electroosmosis in construction materials: effect of enhancing electrolytes and heavy metals contamination. "Journal Applied Electrochemistry", v. 40 (n. 6); pp. 1195-1208. ISSN 0021-891x. https://doi.org/10.1007/s10800-010-0087-9.

Description

Title: Assessment of electrophoresis and electroosmosis in construction materials: effect of enhancing electrolytes and heavy metals contamination
Author/s:
  • Castellote Armero, Marta Maria
  • Botija, S.
  • Andrade Perdrix, Maria del Carmen
Item Type: Article
Título de Revista/Publicación: Journal Applied Electrochemistry
Date: June 2010
ISSN: 0021-891x
Volume: 40
Subjects:
Freetext Keywords: Electrokinetics - Electroosmosis - Electrophoresis - Mortar - Brick - Granite - Zeta potential - Heavy metals - Enhancing electrolytes - Decontamination
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Electrokinetic effects are those that take place by application of an electric field to porous materials, with the zeta potential as the key parameter. Specifically, in the case of contaminated construction materials, the generation of an electroosmotic flux, with the corresponding dragging due to water transport, is a crucial mechanism to succeed in the treatment of decontamination. Therefore, it is of great interest trying to optimize the treatment by the addition of specific electrolytes enhancing the electrokinetic phenomena. Most of the data of zeta potential found in literature for construction materials are based in micro-electrophoresis measurements, which are quite far of the real conditions of application of the remediation treatments. In this paper, electrophoretic and electroosmotic experiments, with monolithic and powdered material respectively, have been carried out for mortar, brick and granite clean and contaminated with Cs, Sr, Co, Cd, Cu and Pb. The electrolytes tested have been distilled water (DW), Na2–EDTA, oxalic acid, acetic acid and citric acid. The zeta potential values have been determined through the two different techniques and the results compared and critically analysed.

More information

Item ID: 8738
DC Identifier: http://oa.upm.es/8738/
OAI Identifier: oai:oa.upm.es:8738
DOI: 10.1007/s10800-010-0087-9
Official URL: http://www.springerlink.com/content/p047815868746r06/
Deposited by: Memoria Investigacion
Deposited on: 29 Sep 2011 09:17
Last Modified: 20 Apr 2016 17:25
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