Removal of selected heavy metals from MSW fly ash by the electrodialytic process

Célia Maria Dias Ferreira, Pernille Erland Jensen, Lisbeth M. Ottosen, Alexandra Ribeiro

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper aims to assess the applicability of the electrodialytic remediation technique for the removal of zinc, lead, copper and cadmium from municipal solid waste (MSW) incinerator fly ash. A broad range of experimental conditions were studied including current densities, remediation times, use of assisting agents and cell design. Several operational problems were identified during the electrodialytic experiments, among which are formation of precipitates, dryness of sample and partial dissolution of sample creating preferential pathways for the electric current. These problems may explain the low remediation efficiencies obtained. Comparison between experiments showed that generally the use of Na-gluconate as assisting agent leads to better results than distilled water. Increasing the concentration of the assisting agent also results in higher removals.
Original languageEnglish
JournalEngineering Geology
Volume77
Pages (from-to)339-347
ISSN0013-7952
DOIs
Publication statusPublished - 2005

Cite this

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title = "Removal of selected heavy metals from MSW fly ash by the electrodialytic process",
abstract = "This paper aims to assess the applicability of the electrodialytic remediation technique for the removal of zinc, lead, copper and cadmium from municipal solid waste (MSW) incinerator fly ash. A broad range of experimental conditions were studied including current densities, remediation times, use of assisting agents and cell design. Several operational problems were identified during the electrodialytic experiments, among which are formation of precipitates, dryness of sample and partial dissolution of sample creating preferential pathways for the electric current. These problems may explain the low remediation efficiencies obtained. Comparison between experiments showed that generally the use of Na-gluconate as assisting agent leads to better results than distilled water. Increasing the concentration of the assisting agent also results in higher removals.",
author = "Ferreira, {C{\'e}lia Maria Dias} and Jensen, {Pernille Erland} and Ottosen, {Lisbeth M.} and Alexandra Ribeiro",
year = "2005",
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pages = "339--347",
journal = "Engineering Geology",
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Removal of selected heavy metals from MSW fly ash by the electrodialytic process. / Ferreira, Célia Maria Dias; Jensen, Pernille Erland; Ottosen, Lisbeth M.; Ribeiro, Alexandra.

In: Engineering Geology, Vol. 77, 2005, p. 339-347.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Removal of selected heavy metals from MSW fly ash by the electrodialytic process

AU - Ferreira, Célia Maria Dias

AU - Jensen, Pernille Erland

AU - Ottosen, Lisbeth M.

AU - Ribeiro, Alexandra

PY - 2005

Y1 - 2005

N2 - This paper aims to assess the applicability of the electrodialytic remediation technique for the removal of zinc, lead, copper and cadmium from municipal solid waste (MSW) incinerator fly ash. A broad range of experimental conditions were studied including current densities, remediation times, use of assisting agents and cell design. Several operational problems were identified during the electrodialytic experiments, among which are formation of precipitates, dryness of sample and partial dissolution of sample creating preferential pathways for the electric current. These problems may explain the low remediation efficiencies obtained. Comparison between experiments showed that generally the use of Na-gluconate as assisting agent leads to better results than distilled water. Increasing the concentration of the assisting agent also results in higher removals.

AB - This paper aims to assess the applicability of the electrodialytic remediation technique for the removal of zinc, lead, copper and cadmium from municipal solid waste (MSW) incinerator fly ash. A broad range of experimental conditions were studied including current densities, remediation times, use of assisting agents and cell design. Several operational problems were identified during the electrodialytic experiments, among which are formation of precipitates, dryness of sample and partial dissolution of sample creating preferential pathways for the electric current. These problems may explain the low remediation efficiencies obtained. Comparison between experiments showed that generally the use of Na-gluconate as assisting agent leads to better results than distilled water. Increasing the concentration of the assisting agent also results in higher removals.

U2 - 10.1016/j.enggeo.2004.07.024

DO - 10.1016/j.enggeo.2004.07.024

M3 - Journal article

VL - 77

SP - 339

EP - 347

JO - Engineering Geology

JF - Engineering Geology

SN - 0013-7952

ER -